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Nok Corporation
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Nok Corporation patents


Recent patent applications related to Nok Corporation. Nok Corporation is listed as an Agent/Assignee. Note: Nok Corporation may have other listings under different names/spellings. We're not affiliated with Nok Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "N" | Nok Corporation-related inventors


Cleaning blade

The invention provides a cleaning blade 1, having an elastic body 11 formed of a rubber base material molded product, and a surface treatment layer 12 on at least an area of the elastic body 11 to be brought into contact with a cleaning object. The surface treatment layer 12... Nok Corporation

Cleaning blade

Disclosed is a cleaning blade 1, having an elastic body 11 formed of a rubber base material molded product, and a surface treatment layer 12 on at least an area of the elastic body 11 to be brought into contact with a cleaning object. The surface treatment layer 12 is... Nok Corporation

Seal ring

A seal ring (100) is attached to an annular groove (210) provided on an outer periphery of a shaft (200), and slides on a lateral wall surface (211) of the annular groove (210) on a lower pressure side. The seal ring (100) includes: a dynamic pressure generation groove (120) that... Nok Corporation

Sealing device

A sealing device between a shaft hole formed on a housing and a rotary shaft, is provided with a rotating seal member fixed to the rotary shaft that rotates integrally with the rotary shaft, and a fixed seal member fixed to an inner surface of the shaft hole. The fixed... Nok Corporation

Sealing device

A sealing apparatus for sealing between a rotary shaft 11 and a housing 12 that can be rotated relative to each other, having a circular ring body 3 provided on the rotary shaft 11 and a seal lip body 6 made of a flexible material provided on the housing 12,... Nok Corporation

Sealing device

A sealing device provides sealing so as to prevent a sealed fluid in a machine inner side from leaking to a machine outer side between a housing and a rotating shaft which is inserted to a shaft hole provided in the housing. The sealing device has a seal flange which... Nok Corporation

Sealing device

A sealing device provides sealing so as to prevent a sealed fluid in a machine inner side from leaking to a machine outer side between a housing and a rotating shaft which is inserted to a shaft hole provided in the housing. The sealing device has a seal flange which... Nok Corporation

Coating agent for oil seal

A coating agent for oil seal comprising 10 to 160 parts by weight of a filler having a particle size of 0.5 to 30 μm based on 100 parts by weight of isocyanate group-containing 1,2-polybutadiene and being prepared as an organic solvent solution, wherein a contact angle between a substrate... Nok Corporation

Metal gasket

The present invention addresses the problem of providing: a metal gasket capable of limiting the loss of axial bolt fastening force even if a peripheral creased section is formed as an anti-saline intrusion measure; and a metal gasket, which has relatively small curved sections with a radius of curvature of... Nok Corporation

Sealing device

The invention provides a sealing device which can suppress occurrence of static leakage and has a seal lip and a seal flange which are slidably in contact with each other, and a screw groove arranged in an end face, in an axial direction, of the seal flange. In the sealing... Nok Corporation

Sealing device

A sealing device has a main lip sealing sealed fluid in a machine inside and a sub lip preventing intrusion of foreign materials in a machine outside, and structured such that both of the lips slidably come into contact with a peripheral surface of a shaft, wherein the sub lip... Nok Corporation

Seal ring and sealing structure

A seal ring and a sealing structure that reduce the deviation of the central axis of the seal ring from the central axis of a shaft thereby preventing the seal ring from abutting against the tip end of a housing in the operation of inserting the shaft in the housing.... Nok Corporation

Gasket

The present invention addresses the problem of enabling an amount of compression of a bead part to be ensured and sealing properties to be improved in a gasket that is supported on one side with a bolt hole provided only on one side of the bead part. A gasket (1)... Nok Corporation

Sealing apparatus

In a sealing apparatus, a lip tip portion of a seal lip of an elastic body part is defined by a sealing side surface and an atmospheric side surface, connected through a lip tip with each other. The lip tip portion includes a circumferential projection and a screw portion on... Nok Corporation

Gasket for fuel battery

The invention provides gasket for a fuel battery provided in a fuel battery cell in which an intermediate part including an MEA is interposed between a pair of separators, and structured such that each of a gasket main body retained to one separator of the pair of separators and a... Nok Corporation

Hydrogenated nitrile rubber composition and drivetrain oil seal

A hydrogenated nitrile rubber composition and a drivetrain oil seal whereby seal squeal can be prevented even upon wearing away of the sealing or even under dry lubrication conditions without any grease. The hydrogenated nitrile rubber composition comprises 100 parts by weight of hydrogenated nitrile rubber and further 10 to... Nok Corporation

Intake noise reduction device

An intake noise reduction device that can mitigate deformation of a flow-regulating net portion made of an elastic body. The intake noise reduction device 100 is made of an elastic body that is disposed downstream of a throttle valve and includes an annular gasket portion 110 and a flow-regulating net... Nok Corporation

Sealing structure for casing

It is an object of the present invention to provide a sealing structure for a casing that can reduce the number of used gaskets and achieve further weight reduction, with the sealing function of the gaskets secured. The object is solved by including: a case 2 having an opened top;... Nok Corporation

Sealing device

The present invention is to provide a sealing device that has a small number of parts as three or less to achieve a more compact sealing device. The sealing device is combined an inner seal ring, an outer seal ring held in an outer circumferential holding groove of the inner... Nok Corporation

Sealing device

A sealing device includes a seal ring 200 made of resin which is in close contact with a side wall surface on a low pressure side of an annular groove 410, and slides against an inner peripheral surface of a shaft hole in a housing 500 through which a shaft... Nok Corporation

Cover structure of tactile sensor and tactile sensor

The present invention aims at providing a cover structure of a tactile sensor and a tactile sensor that can secure sufficient adhesion between a sensor body and a covering layer without providing an adhesive layer and have no possibility of causing a sensor to make detection error due to the... Nok Corporation

Die for molding roller

The invention relates to molding of a roller in which a roller body is provided integrally on the outer periphery of an axial core member, and the objective of the invention is to prevent the generation of a thin burr, and damage to the die. In order to achieve this... Nok Corporation

Method for producing a carbon hollow fiber membrane

A hollow fiber carbon membrane is produced by preparing a membrane-forming dope for carbon membranes by dissolving polyphenylene oxide in an amount giving a concentration of 15 to 40 wt. % in the membrane-forming dope, and sulfur in an amount giving a ratio of 0.2 to 3.0 wt. % based... Nok Corporation

Adhesive composition for oil silicone rubber

An adhesive composition for oil bleeding silicone rubber comprising any of: (A) an alcohol-based organic solvent solution adding 45 to 120 parts by weight of organometallic compound and 2 to 10 parts by weight of water, based on 100 parts by weight of vinyltrialkoxysilane, (B) a solution in which 5... Nok Corporation

Molding method and molding die for molded article

The purpose of the present invention is to make it possible to shorten the time required for a burr removal step and make it difficult for the burrs to detach from a sheet member in a step for removing the burrs together with the sheet member. For removal, by making... Nok Corporation

Sealing structure for casing

The present invention has an object of providing a sealing structure for a casing that suppresses the deformation of a center plate of a laminated gasket on a partition wall and ensures the compression amount of a bead on the partition wall, without the center plate being thickened. The object... Nok Corporation

Sbr composition for torsional damper, and torsional damper

An object of the present invention is to provide an SBR composition for a torsional damper in which the SBR composition has a good physical property balance of high load-bearing properties, low CS properties, and the kneadability and roll processability of a rubber material, and to provide a torsional damper.... Nok Corporation

Sealing device

A sealing device includes a metal ring, a main lip, an annular elastic body, a sliding ring, and biasing means. The metal ring is hermetically fixed to a housing. The main lip is bonded to the metal ring and is slidably in close contact with an outer periphery surface of... Nok Corporation

Intake noise reduction device

The intake noise reduction device is capable of suppressing hindrance to the airflow caused by deformation of a flow-regulating net portion and suppressing a reduction in the airflow amount. A linear portion having a mesh shape constituting a flow-regulating net portion 120 includes a circumferential linear portion 122 that extends... Nok Corporation

Sealing structure

A sealing structure that allows for formation of a side lip, as well as a labyrinth structure between an oil seal and a torsional vibration damper, even when a reinforcing ring has a short inward flange part. The sealing body 120 includes a side lip 124 extending from near a... Nok Corporation

Membrane-forming dope for carbon membranes and a producing a carbon hollow fiber membrane using the same

A membrane-forming dope for carbon membranes, comprising polyphenylene oxide in an amount giving a concentration of 15 to 40 wt. % in the membrane-forming dope, and sulfur in an amount giving a ratio of 0.1 to 5.0 wt. %, preferably 0.2 to 3.0 wt. %, of the total weight of... Nok Corporation

Surface-treating agent for vulcanized rubber

wherein the weight ratio of the isocyanate group-containing 1,2-polybutadiene and the OH group-containing fluororesin composition is 50:50 to 95:5.... Nok Corporation

Balance shaft friction damper

The present invention has an object to provide a balance shaft friction damper (1) capable of preventing a torque reduction of a lip sliding surface while ensuring an axial flow path for a lubricant to stably circulate the lubricant. The object is achieved by a balance shaft friction damper (1)... Nok Corporation

Sealing structure

A sealing structure suppresses possible damage to a seal ring because of a backup ring. The sealing structure is characterized in that a cut portion 150 that is cut in a planar shape is formed in a backup ring 100 at one position in a circumferential direction, the cut portion... Nok Corporation

Surface-treating agent for vulcanized rubber

A surface-treating agent for vulcanized rubber, comprising, based on 100 parts by weight, as solid matters, of isocyanate group-containing 1,2-polybutadiene, an organic solvent solution containing 10 to 160 parts by weight of fluororesin particles and 2.5 to 20 parts by weight of a perfluoroalkyl group-containing oligomer-based, fluorine-containing surfactant as a... Nok Corporation

10/05/17 / #20170284547

Sealing structure with torsional damper and oil seal

A sealing structure with a torsional damper and an oil seal includes a damper pulley and an oil seal. The damper pulley includes, in a disk part of a hub on a front cover side, an annular projection that protrudes between the window and the boss part. The oil seal... Nok Corporation

09/21/17 / #20170268676

Sealing structure with torsional damper and oil seal

A sealing structure with a torsional damper and an oil seal includes a damper pulley serving as a torsional damper and an oil seal. The damper pulley has an annular hub pocket that is recessed in the outer side direction and extends in the circumferential direction along a boss part... Nok Corporation

09/07/17 / #20170253715

Polytetrafluoroethylene resin composition

A polytetrafluoroethylene resin composition comprising 67 to 75 volume %, preferably 69 to 72 volume %, of a polytetrafluoroethylene resin and 33 to 25 volume %, preferably 31 to 28 volume %, of a filler having an average particle diameter of 45 to 80 μm, preferably 50 to 75 μm.... Nok Corporation

08/17/17 / #20170234361

Dust cover

A dust cover in which an improvement in sealing performance is achieved. A dust cover 100 used in a ball joint includes a seal main body made of an elastic body and integrally having a body portion 110, a fixed portion 130 that is provided on one end side of... Nok Corporation

08/17/17 / #20170234398

Sealing structure

A sealing structure allows for formation of a side lip, as well as a labyrinth structure between an oil seal and a torsional vibration damper, even when a reinforcing ring has a short inward flange part. The sealing body 120 includes a side lip 124 extending from near a distal... Nok Corporation

08/17/17 / #20170234434

Dust seal

A dust seal for sealing a gap between an opening and a shaft inserted through the opening includes a dust seal body in an annular shape and a bushing in an annular shape. The shaft is slidably inserted through the bushing. The dust seal body includes an attaching portion, a... Nok Corporation

08/10/17 / #20170227127

Metal gasket

In a tabular metal gasket having a plurality of bolt holes, a seal bead is provided between bolt holes which are adjacent to each other, one end of the seal bead is connected to the one bolt hole and the other end of the seal bead is connected to the... Nok Corporation

08/03/17 / #20170219100

Dust seal

A dust seal includes an annular dust seal body, an annular bushing through which a shaft is slidably inserted, and an annular seal lip provided on the bushing and slidably contacting the shaft. The dust seal body includes an annular elastic attaching portion that is fitted into an opening of... Nok Corporation

07/27/17 / #20170210934

Coating agent aqueous dispersion

A coating agent aqueous dispersion comprising, as solid matters, 20 to 80 wt. %, preferably 29 to 70 wt. %, of PTFE, 10 to 50 wt. %, preferably 14 to 36 wt. %, of acrylic resin, and 10 to 50 wt. %, preferably 20 to 45 wt. %, of ethylene-vinyl... Nok Corporation

07/27/17 / #20170211703

Sealing structure and sealing device

A sealing structure and a sealing device that maintain sealing properties even when there is shaft eccentricity and maintain the sealing properties over a long time even in an environment where there is cyclic variation in fluid pressure. The sealing device 100 includes an O-ring 10 and a back-up ring... Nok Corporation

07/27/17 / #20170211705

Sealing device

A sealing device that can mitigate stress concentration in a bellows part when a shaft deviates as it rotates. The sealing device 100 includes a fixed part 110 fixed to an inner circumference of a shaft hole in a housing 200, a thin bellows part 120 extending from the fixed... Nok Corporation

07/20/17 / #20170207468

Method of manufacturing plate-integrated gasket

To effectively prevent a breakage of a plate when a gasket body formed of a rubber-like elastic material is integrally molded at both faces of the plate formed of a brittle material such as carbon. In order to attain this object, there is provided a method of manufacturing a plate-integrated... Nok Corporation

07/13/17 / #20170199492

Cleaning blade

A cleaning blade has an elastic body formed of a urethane elastomer, and a treated surface layer formed at least at a portion which comes into contact with a contact target of the elastic body. The treated surface layer is formed through impregnating a surface portion of the elastic body... Nok Corporation

07/06/17 / #20170190868

Ethylene-acrylic rubber composition, ethylene-acrylic rubber, rubber metal composite, and bonded piston sealing

An object of the present invention is to provide an ethylene-acrylic rubber composition that is excellent in the compression set and also in the crosslinking bonding even when no secondary crosslinking is caused therein, an ethylene-acrylic rubber produced by causing primary crosslinking in the composition, a rubber metal composite formed... Nok Corporation

07/06/17 / #20170190933

Surface modification treatment agent, member for image forming apparatus and toner fixing mechanism

An object of the present invention is to provide a surface modification treatment agent capable of achieving lower tackiness and lower friction, a member for an image forming apparatus and a toner fixing mechanism. The object can be fulfilled by a surface modification treatment agent including: (A) an alkoxyoligomer; (B)... Nok Corporation

07/06/17 / #20170194080

Grommet

The object is to suppress deformation and secure sealing properties even if a wire is bent in the vicinity of a grommet, and the object is resolved by a grommet G1 comprising a grommet main body 1 made of a rubber elastic material and having a throughhole 2 disposed therein... Nok Corporation

06/29/17 / #20170183458

2-mercaptoimidazoline-containing masterbatch

Provided is a 2-mercaptoimidazoline-containing masterbatch having exceptional properties for dispersing 2-mercaptimidazoline in a CR compound, and improved mold staining during molding. In the 2-mercaptoimidazoline-containing masterbatch, nitrile rubber is used as a binder material. A masterbatch containing 50-90 mass % of 2-mercaptoimidazoline and 10-50 mass % of nitrile rubber is preferred.... Nok Corporation

06/29/17 / #20170184199

Gasket and sealing structure

A gasket and a sealing structure is capable of exhibiting stable sealing performance even when used in a high-temperature environment. A gasket 100 is mounted in an annular mounting groove 210 provided to a first member 200 and makes tight contact with a groove bottom surface 211 of this mounting... Nok Corporation

06/08/17 / #20170158920

Thermoplastic adhesive sheet

It is an object of the present invention to provide a thermoplastic adhesive sheet excellent in initial adhesiveness to an imide group-containing resin compounded with a filler and also excellent in electrolyte-resistance adhesiveness, and the object is achieved by a thermoplastic adhesive sheet that has a functional group introduced into... Nok Corporation

06/08/17 / #20170159701

Dust cover for ball joint

A dust cover for a ball joint has a spherical head portion, a shaft, a one end large-diameter opening portion, and the other end small-diameter opening portion. An annular groove portion is formed between an inner peripheral surface of a reinforcing ring in the other end small-diameter portion and an... Nok Corporation

06/08/17 / #20170159837

Rubber-laminated sealing valve

A rubber-laminated sealing valve comprising a fluororubber layer and an amorphous carbon film that are sequentially laminated, wherein the amorphous carbon film is formed by a CVD plasma treatment method that supplies a high-frequency power from a high-frequency power source using hydrocarbon gas. The rubber-laminated sealing valve forms an amorphous... Nok Corporation

05/25/17 / #20170146412

Pressure-sensitive responsive laminate, coating layer and pressure-sensitive responsivity-imparting material

An object of the present invention is to provide a pressure-sensitive responsive laminate excellent in durability at the repeated use, and further which can ensure change in resistance values at the unloaded time and at the time of applying a load with a large width, a coating layer which can... Nok Corporation

05/18/17 / #20170138480

Gasket

In a gasket which is installed to an installation groove provided in one member of two members facing to each other and comes into close contact with the other member, and has a seal projection coming into contact with a groove side surface of the installation groove, and provided over... Nok Corporation

05/18/17 / #20170138483

Sealing device

A sealing device seals an annular gap between a shaft and a housing, and includes a first annular member 200 provided with a first cylindrical part 201 that is secured to an outer circumferential surface of the shaft 20, and a first flange 202 extending radially outward from the first... Nok Corporation

05/11/17 / #20170129141

Insert molding die structure

Provided is a structure in which an inserted article is easily inserted and a product is easily released from a die after molding. The structure includes a positioning mechanism which is vertically arranged on one split die, includes a positioning pin having a tapered distal end, and positions the inserted... Nok Corporation

05/11/17 / #20170130032

Hnbr composition and hnbr crosslinked body

An object of the present invention is to provide an HNBR composition and an HNBR crosslinked body excellent in abrasion resistance and pressure resistance. The object is achieved by an HNBR composition containing 3 to 20 parts by weight of carbon fibers or wollastonite as a hard filler per 100... Nok Corporation

05/04/17 / #20170120488

Method of manufacturing plate-integrated gasket

A method has the steps of forming a lot of potting portions made of a rubber-like elastic material at appropriate intervals in respect of an extending direction of the gasket main body in the one side in the thickness direction in the peripheral edge portion of the plate in such... Nok Corporation

05/04/17 / #20170122438

Sealing device

A sealing device capable of preventing turnover of a dust lip and damage to a dust lip caused by insertion of a shaft. A bumper portion (125) made of a rubber-like elastic body and reducing an impact that the dust lip (122) receives from the shaft when the shaft is... Nok Corporation

04/27/17 / #20170113718

Damper device and steering device

The damper device includes the shaft, the large diameter portion housing and the impact absorbing member. When the large diameter portion does not apply an impact force on the flange portion, the elastic body is disposed at one of the inner peripheral surface of the housing and the outer peripheral... Nok Corporation

04/27/17 / #20170113719

Damper device and steering device

In the damper device, when the large diameter portion does not apply an impact force on the flange portion, the elastic body is disposed in one of the housing and the cylindrical portion with a gap and when the large diameter portion applies the impact force on the flange portion,... Nok Corporation

Patent Packs
04/27/17 / #20170114901

Sealing device

The invention provides a sealing device sealing so as to prevent a sealed fluid in a machine inner side from leaking to a machine outer side between a housing and a rotating shaft which is inserted to a shaft hole provided in the housing. The sealing device has a seal... Nok Corporation

04/20/17 / #20170106630

Resin-rubber composite

A resin-rubber composite in which a polyamide-based resin-molded product or a polyphenylene sulfide-based resin-molded product is directly vulcanization-bonded to a peroxide-crosslinkable nonpolar rubber composition, which forms a rubber layer, without interposing an adhesive, wherein both resin-molded products have a polymerized film with a radical, which is formed by activating the... Nok Corporation

04/06/17 / #20170097094

Sealing device

An object is to provide a backup ring manufacturable with an angle of a cut portion set to a standard cut angle even in the case of a product having a small diameter etc. due to dimensional limitation of a device used therewith, and is solved by a sealing device... Nok Corporation

03/30/17 / #20170089465

Gasket

An object of the present invention is to provide a gasket capable of ensuring an excellent sealing property by a pair of seal beads oriented in directions axially opposing to each other, regardless of an inserting direction of the gasket into a setting groove. The object is achieved by a... Nok Corporation

03/23/17 / #20170082200

Sliding member and process for producing the same

A sliding member comprising a polyamide resin and 10 to 50 wt % of a fibrous filler selected from the group consisting of carbon fibers, aramid fibers, and whiskers, and having fine dents formed in a sliding surface thereof by dimpling using a laser; and a process for producing a... Nok Corporation

03/16/17 / #20170074402

Metal gasket

The present invention has an object to provide a metal gasket which enables improvement of sealing properties by making sufficient compression of a full bead possible even if elastic coating is formed along the full bead. In the gasket (1) having a full bead (13), formed on a metal substrate... Nok Corporation

02/23/17 / #20170051784

Dust cover for ball joint

A dust cover for a ball joint has a spherical head portion, a shaft, a cylindrical one-end large-diameter opening portion, a large-diameter opening portion side reinforcing ring fixed to a socket, the other end small-diameter opening portion retained onto the shaft, a flange portion extending from an end portion in... Nok Corporation

02/16/17 / #20170045840

Rubber member for coating developing roll and manufacturing developing roll for image forming apparatus

An object is to provide a rubber member for coating a developing roll which is formed a uniform rough surface at a surface of the developing roll, does exert neither damage nor toner stress to the mating member or the toner while maintaining flexibility, is possible to secure a thickness... Nok Corporation

02/09/17 / #20170037254

Rubber-metal adhesive

[wherein R represents an alkyl group having 3 or more carbon atoms or an aryl group.]... Nok Corporation

02/09/17 / #20170037811

Rubber-metal laminated gasket material

A rubber-metal laminated gasket material comprising a metal plate and fluororubber or nitrile rubber laminated on the metal plate, wherein an amorphous carbon film having a nanoindentation hardness on a silicon wafer of 10 GPa or more and a film thickness of 200 nm or more is formed on a... Nok Corporation

02/02/17 / #20170032233

Ic tag

Provided is an IC tag favorably applicable even to linen products. An IC tag 100 using a magnetic field type tag unit 110 in which an IC chip and a coil antenna to be electrically connected to the IC chip are embedded inside a hard resin material. The IC tag... Nok Corporation

01/26/17 / #20170023876

Rubber member for developing roll, and manufacturing same

It is an object of the present invention to provide a development roll rubber member that has a uniformly roughened surface on a rubber member surface, that is capable of ensuring a sufficient thickness without contaminating a peripheral portion while maintaining a flexibility in a coating layer and a convex... Nok Corporation

01/19/17 / #20170015035

Method of manufacturing plate with frame

A plate is provided in its outer edge portion with a concavo-concave shape which makes a frame hard to fall away. A metal mold is provided with a cavity portion and a gate portion. A plurality of gate portions are provided at positions facing to an outer edge thickness surface... Nok Corporation

01/12/17 / #20170009616

Valve stem seal

A valve stem seal exhibits superior workability of mounting of a reinforcing ring to a valve stem guide and enables the reinforcing ring to be fixed to the valve stem guide in a stable manner. A reinforcing ring is mounted to a valve stem guide by fitting a cylindrical portion... Nok Corporation

01/12/17 / #20170009889

Sealing ring

Provided is a sealing device capable of suppressing leakage of a fluid to be sealed while reducing rotary torque regardless of rotational direction. In a sealing ring (100) slides against a side wall surface on a low pressure side of an annular groove, a dynamic pressure generating groove (120) that... Nok Corporation

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ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009



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