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Nitta Corporation patents


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

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


Collagen dough and method for producing collagen dough containing chitosan

A hydrolyzed collagen dough produced from bovine collagen and methods for producing the collagen dough from bovine hides is provided. The collagen dough comprises water, bovine collagen, sodium benzoate and hydrochloric acid. ... Nitta Corporation

Method and apparatus for flaw inspection of friction-weld part of stem in engine valve

Provided is a method for flaw inspection of a stem joint of a valve including: an internal flaw inspection step including causing a flaw detection probe to be disposed so as to face upward in water in a tank in an ultrasonic inspection chamber, holding a valve in such fashion as to cause the tip to face the flaw detection probe, and inspecting for a flaw at the interior of the stem joint; and a surface flaw inspection step including causing a flaw detection probe to be disposed horizontally in an eddy-current inspection chamber, holding a valve in such fashion as to cause the side face of a stem of the valve to be close to and facing the flaw detection probe, inspecting for a flaw on the surface of the stem joint while the flaw detection probe and the valve are made to engage in mutual rotation. The valves are transferred from a valve loading position to the ultrasonic inspection chamber, from the ultrasonic inspection chamber to the eddy-current inspection chamber, and from the eddy-current inspection chamber to a valve unloading position in substantially simultaneous, continuous, synchronous, and/or coordinated fashion.. ... Nitta Corporation

Composite material production method and composite material

There are provided a method for producing a composite material from which a high-strength prepreg having cnt-derived properties fully exerted is obtained, comprising a step of immersing a carbon fiber bundle including a plurality of continuous carbon fibers in a carbon-nanotubes-isolated dispersion containing a plurality of isolatedly-dispersed carbon nanotubes and applying ultrasonic vibrations at a frequency of more than 40 khz and 180 khz or less to form a structure comprising a plurality of carbon nanotubes on the surface of each of the plurality of carbon fibers, wherein the structures are directly attached to the surface of each of the plurality of carbon fibers and form together a network structure in which the carbon nanotubes are directly connected to one another, and such a composite material.. . ... Nitta Corporation

Cutting apparatus and cutting blade

A cutting apparatus and a cutting blade are provided that are not only capable of restraining a highly-viscous substance from bending but also capable of preventing a damage of a blade edge part. A pair of cutting blades is provided to be capable of approaching/separating movement, and the cutting blades are arranged with blade edge parts facing each other while having thickness directions oriented in the same direction. ... Nitta Corporation

Polishing pad

The present invention is a polishing pad formed by foamed polyurethane, with a content of s phase in the foamed polyurethane, as determined by pulsed nmr measurement at 25° c., exceeding 70%.. . ... Nitta Corporation

Torque transmission device

A torque transmission device is provided that is capable of being compactified as much as possible in a direction of parallel arrangement of a pair of side gears while ensuring a differential function and a differential limiting function. The torque transmission device comprises side gears (5l, 5r) coupled to rear wheels (3l, 3r), a case (6) disposed on the outer circumferential side of the side gears (5l, 5r) and rotating around the axis of the side gears (5l, 5r), and a pinion gear (12) rotatably supported by the case (6) and engaged with the side gears (5l, 5r) in a straddling manner. ... Nitta Corporation

Method of machining screw

A method of machining a screw is provided that is capable of preventing formation of a protruding section at a thread tip section. A thread is formed by cutting on a cylindrical body, and a surface of the thread is plastically deformed by rolling. ... Nitta Corporation

Engagement component, female member, and tool replacement apparatus

An engaging member, a female member and a tool changer that can be downsized are provided, and the engaging member is an engaging member including: an engaging surface that allows a cam provided in a male member to engage therewith; and a dispersing surface that transmits a force provided from the cam via the engaging surface, to a female member body, wherein the dispersing surface includes a first dispersing surface and a second dispersing surface perpendicular to each other, and a cross-sectional shape perpendicular to a longitudinal direction is formed in a substantially triangular shape by the dispersing surface and the engaging surface.. . ... Nitta Corporation

Solder transfer sheet, solder bump, and solder precoating method using solder transfer sheet

Provided is a solder transfer sheet which is capable of increasing the amount of solder to be transferred without the occurrence of bridging. A solder transfer sheet 1a includes a base material 5, an adhesive layer 4 formed on the surface of the base material 5, a solder powder-containing adhesive layer 3 formed on the surface of the adhesive layer 4, and a solder powder layer 2 formed on the surface of the solder powder-containing adhesive layer 3. ... Nitta Corporation

Signal module and signal relay device

A signal module and a signal relay device that can suppress the effect of noise are provided, and the signal module is a signal module of a tool changer including a first coupling member to be detachably attached to a body side of an industrial robot and a second coupling member to be detachably attached to a tool side, the signal module including a signal relay connector attached to the first coupling member or the second coupling member, and upon the first coupling member and the second coupling member being coupled, forming a signal path between the first coupling member side and the second coupling member side, wherein in the signal relay connector, a plurality of terminal pairs to be used for communication using differential signals are provided, and two terminals of each of the terminal pairs are arranged at mutually-adjacent positions.. . ... Nitta Corporation

Power supplying module

A power supplying module that can be reduced in size is provided. The power supplying module includes a module body, and a lead-in unit provided on one surface of the module body. ... Nitta Corporation

Connection mechanism between valve and joint in air piping

Provided is a connection mechanism between a valve and a joint is configured to connect a tube through the joint 1 to a housing 2 of the valve in air piping. The housing 2 of the valve includes a connection hole 22 for accommodating and connecting the joint 1. ... Nitta Corporation

Structure for holding catalyst particles for carbon nanotube production and method for producing same

There are provided an easily producible catalyst particle-holding structure used for production of carbon nanotubes, and a method for producing the same. The method for producing the catalyst particle-holding structure of the present invention used for production of carbon nanotubes includes a step of forming a catalyst particle forming layer containing si, al, and fe, and a step of performing a heat treatment on the catalyst particle forming layer in an atmosphere containing oxygen, to form catalyst particles containing fe. ... Nitta Corporation

Method for supplying inert gas into poppet valve intermediate and apparatus for supplying inert gas into poppet valve intermediate

A method for supplying inert gas into a poppet valve intermediate and an apparatus for supplying inert gas are provided that are capable of properly filling the inert gas without waste into the poppet valve intermediate of any size. After a negative pressure is achieved by suction in an internal space (win) of a poppet valve intermediate (w) as compared to an ambient pressure (pa) of the poppet valve intermediate (w), the inert gas is supplied into the internal space (win) until a pressure (p) of the internal space (win) reaches the ambient pressure (ps) of the poppet valve intermediate (w).. ... Nitta Corporation

08/31/17 / #20170248262

Connection mechanism between valve and joint in air piping

Provided is a connection mechanism for connecting a tube through a joint to a housing of a valve. At least one of the housing of the valve and the joint is made of a resin. ... Nitta Corporation

08/24/17 / #20170241585

Heat-insulated pipe arrangement

A heat-insulated pipe assembly includes a pipe allowing a fluid to flow therethrough, and a heat insulating member covers at least a part of the pipe. The pipe is used in an exhaust gas purification system using an scr catalyst. ... Nitta Corporation

08/17/17 / #20170234468

Connection mechanism between valve and joint

Provided is a connection mechanism between a valve and a joint configured to connect a tube through the joint 1 to a housing 2 of the valve in air piping. The housing 2 of the valve includes a connection hole 22 configured to accept insertion and connection of the joint 1. ... Nitta Corporation

08/03/17 / #20170218796

Hydraulic lash adjuster and method for using hydraulic lash adjuster

Air is restrained from flowing into a high pressure chamber while the number of parts is reduced. A plunger is slidably fitted into a body; a reservoir is formed in the plunger with a communication hole formed in a head section thereof to allow communication between an inside and an outside; a high pressure chamber is formed in the body between the body and the plunger bottom section; an oil supply hole is formed in a plunger circumferential wall section; a return spring is interposed between the body and the plunger; a valve mechanism is disposed on the plunger bottom section; the reservoir is set such that a space continuously extends; and the oil supply hole is oriented outward in the radial direction as compared to an axis of the plunger.. ... Nitta Corporation

07/27/17 / #20170211994

Pressure measurement apparatus and program for measuring pressure

A pressure measurement device includes a platen, a pressure sensor, a signal acquisition section, and a data processing section. The pressure sensor includes a plurality of pressure-sensitive points arranged on the platen. ... Nitta Corporation

07/27/17 / #20170211728

Caulking die, caulking tool, method for manufacturing caulking joint using them

A caulking die according to an embodiment of the present invention includes an end surface being connected to each of an upper surface and a lower surface. The end surface includes a first protruded part including a first top portion, a recessed groove, and a second protruded part including a second top portion in sequential order from the lower surface side toward the upper surface side. ... Nitta Corporation

07/27/17 / #20170211434

Poppet valve and method for manufacturing same

A method for manufacturing a poppet valve 10 from an intermediate valve products is disclosed. The intermediate valve products have an intermediate valve head 14′ with a pressing protrusions 15. ... Nitta Corporation

06/22/17 / #20170178926

Polishing composition and polishing method

The present invention relates to a polishing composition including water and silica, wherein the silica has a bet specific surface area of 30 m2/g or more and an nmr specific surface area of 10 m2/g or more, and a polishing method using the polishing composition. The polishing composition of the present invention adopts silica having the bet specific surface area falling within the above-described range, and additionally having the nmr specific surface area falling within a specific range, and consequently attains a high polishing rate, and can maintain the polishing rate even when used for a long time.. ... Nitta Corporation

06/22/17 / #20170178888

Method for polishing semiconductor substrate

Proposed is a method for polishing a semiconductor substrate including an intermediate polishing step of polishing in such a way that the number of surface defects having heights of less than 3 nm is 45% or more of the total number of the surface defects on the surface of a semiconductor substrate, and a final polishing step of finish-polishing the semiconductor substrate after the intermediate polishing step.. . ... Nitta Corporation

06/22/17 / #20170174940

Polishing composition

Proposed is a polishing composition including hydroxyethyl cellulose, water and abrasive grains, wherein the hydroxyethyl cellulose has a molecular weight of 500,000 or more and 1,500,000 or less, and the mass ratio of the hydroxyethyl cellulose to the abrasive grains is 0.0075 or more and 0.025 or less.. . ... Nitta Corporation

06/22/17 / #20170174939

Polishing composition

Proposed is a polishing composition including hydroxyethyl cellulose, water and abrasive grains, wherein the hydroxyethyl cellulose has a molecular weight of 500,000 or more and 1,500,000 or less, and the proportion of the hydroxyethyl cellulose adsorbed to the abrasive grains is 30% or more and 90% or less.. . ... Nitta Corporation

06/08/17 / #20170158912

Method of controlling selectivity using composition for polishing silicon nitride

A composition for polishing silicon nitride according to the present invention includes colloidal silica, a polishing aid including a phosphoric acid compound and a sulfuric acid compound. By further including an oxidizing agent, a first selectivity representing the ratio of a polishing speed for a metal layer to a polishing speed for a silicon nitride layer and a second selectivity representing the ratio of a polishing speed for an oxide insulating layer to a polishing speed for a silicon nitride are controlled.. ... Nitta Corporation

05/18/17 / #20170138408

Structure for shaft, male member, and female member

A shaft structure installed in a shaft capable of making a power-transmission includes a male component having splines and spline bottoms on an outer periphery, a female component having splines and spline bottoms on an inner periphery and allows the male component to be slidably inserted in an axial direction thereby making up the shaft structure, and an elastic member covering the outer or inner periphery of the male or female component, wherein the female component has substantially u or v-shaped cross-section grooves on the outer periphery as opposed to splines, and a shape defined by the spline of the female component and the groove is such a shape that when the male or female component is twisted and a stress is applied to the spline in a direction around the shaft, the spline could be elastically deformed and absorb a maximum design stress within an elastic region.. . ... Nitta Corporation

03/16/17 / #20170074350

Endless flat belt and method for manufacturing the same

. . An endless flat belt includes an inner rubber layer 1, a cord core 11 buried in the inner rubber layer 1 and spirally wound at a predetermined pitch in a width direction of the belt, and a reinforcement fabric 2 stuck to the inner rubber layer 1. The cord core comprises polyamide fiber. ... Nitta Corporation

02/16/17 / #20170044937

Hydraulic lash adjuster

A hydraulic lash adjuster having a reduced number of elements, yet capable of suppressing air from infusing into a high-pressure chamber. A plunger is fitted in a body. ... Nitta Corporation

02/16/17 / #20170044369

Belt

In the belt according to the present invention, the whole or a part of a belt body is formed from a thermoplastic resin composition (c) comprising a thermoplastic resin w and a modified ethylene copolymer (b) dispersed and contained. Therein. ... Nitta Corporation

02/09/17 / #20170035858

Myoblast differentiation promoter

A peptide selected from the group consisting of ala-hyp-gly, hyp-gly-pro, leu-hyp, glu-hyp, gly-pro-hyp, pro-ala, hyp-gly and pro-hyp, or a pharmaceutically acceptable salt thereof has a myoblast differentiation promoting effect superior to conventional arts.. . ... Nitta Corporation

02/02/17 / #20170030507

Joint cover

The present invention provides a joint cover capable of improving working efficiency in mounting a joint cover on a joint. A joint cover provided on the outside of a joint includes a first cover body provided with an opening and adapted to house one side of the joint; and a second cover body detachably attachable to the first cover body, wherein a dividing position formed when the first cover body and the second cover body are in contact with each other is offset toward the second cover body.. ... Nitta Corporation

01/19/17 / #20170016375

Heating and heat-shielded piping

A heating and thermal insulation pipe including: a temperature-regulated pipe configured to allow a liquid to pass therethrough; at least two temperature-regulating pipes configured to allow a liquid coolant to pass therethrough, the at least two temperature-regulating pipes being in a mutual contact with the temperature-regulated pipe; a binding member for fixing the temperature-regulated pipe and the at least two temperature-regulating pipes together; and an outward protection tube sheathing therewith the temperature-regulated pipe and the at least two temperature-regulating pipes.. . ... Nitta Corporation








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