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Fdk Corporation patents


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

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


Electrode plate of laminated power storage element, laminated power storage element, and method for manufacturing electrode plate for laminated power storage element

At least one of positive and negative electrode plates constitutes a flat plate-shaped electrode body in a laminated power storage element. The laminated power storage element includes a casing formed into a flat bag and the electrode body sealed in the casing together with an electrolyte. ... Fdk Corporation

Externally-attached ptc element and tubular battery

An externally-attached ptc element attachable to one electrode terminal of a tubular battery with electrode terminals on both end surfaces, the externally-attached ptc element including: a bottom plate made of a metal plate; a plate-shaped ptc element; and a top panel made of a metal plate, the plate-shaped ptc element and the top panel being stacked in that order above the bottom plate disposed below, the ptc element being disposed in an opposed area between the top panel and the bottom plate, the top panel projecting and extending in one direction with respect to a planar area of the bottom plate, the top panel having a distal end formed into a lead terminal shape mountable to a circuit board.. . ... Fdk Corporation

Hydrogen storage multi-phase alloys

A multi-phase hydrogen storage alloy comprising a hexagonal ce2ni7 phase and a hexagonal pr5co19 phase, where the ce2ni7 phase abundance is ≥30 wt % and the pr5co19 phase abundance is ≥8 wt % and where the alloy comprises a mischmetal where nd in the mischmetal is <50 at % or a multi-phase hydrogen storage alloy comprising one or more rare earth elements, a hexagonal ce2ni7 phase and a hexagonal pr5co19 phase, where the ce2ni7 phase abundance is from about 30 to about 72 wt % and the pr5co19 phase abundance is ≥8 wt % have improved electrochemical performance. The alloys are useful in an electrode in a metal hydride battery, a fuel cell or a metal hydride air battery.. ... Fdk Corporation

Multilayer inductor and method for manufacturing multilayer inductor

A multilayer inductor includes a stack including a coil spirally wound and overlapped in a stacking direction in a magnetic body, an electrode provided on a bottom surface of the stack, a connecting conductor that passes through the stack toward the bottom surface from one end of the coil to the electrode to connect the end of the coil with the electrode, and a nonmagnetic part that surrounds the connecting conductor.. . ... Fdk Corporation

Cylindrical alkaline secondry battery

A nickel-hydrogen secondary battery includes: an outer can; a sealing body including a positive electrode terminal, the sealing body sealing an opening of the outer can; an electrode group formed by placing a positive electrode and a negative electrode on top of each other with a separator therebetween and spirally winding the positive electrode and the negative electrode, the electrode group housed in the outer can along with an alkaline electrolyte; a positive electrode current collector connected to positive electrode connection edge portion protruding from one end surface of the electrode group; and a current collecting lead connecting the positive electrode current collector and the sealing body, wherein a relationship between a deformation resistance a of a material a and a deformation resistance b of a material b satisfies a relationship of a<b, wherein the material a is a material of the current collecting lead, and the material b is a material of the positive electrode current collector.. . ... Fdk Corporation

Power storage system

A power storage system includes a plurality of power storage sections parallelly disposed, a plurality of charge/discharge circuits that individually charge/discharge the plurality of power storage sections, and a system control section that controls the plurality of charge/discharge circuits, and the system control section controls the charge/discharge circuits such that power storage sections adjacent to one another in vertical, horizontal and front-rear directions are not simultaneously charged or discharged.. . ... Fdk Corporation

Series-coupling component for battery pack and battery pack

A series-coupling component for a battery pack includes a circular plate-shaped bulkhead portion, a cylinder portion taking the bulkhead portion as a top surface and opening downward, an upper end side of the unit battery being inserted into the cylinder portion, and a wall surface portion erected upwardly along a peripheral edge of the bulkhead portion to hold a lower end side of the unit battery, separated by a cutout portion from an upper end of a cylindrical side surface up to a top surface of the bulkhead portion at a part of the cylindrical side surface that opens at the upper side taking the bulkhead portion as a bottom, the bulkhead portion has a hole that communicates in an up and down direction and a groove that has a rectangular cross-section on a top surface and opens at peripheral edges of the hole and the bulkhead portion.. . ... Fdk Corporation

Power supply device with excess current protection

A first excess current protector directs a controller to limit an output current of a regulator when a current value detected by a current detector exceeds a first preset current value set to be higher than a rated current value of a power supply device. A second excess current protector directs the controller to limit the output current of the regulator when an average value of the current value detected by the current detector over a predetermined period of time exceeds a second preset current value set to correspond to the rated current value. ... Fdk Corporation

Load current control apparatus

A load current control apparatus according to the present invention includes a current detecting circuit adapted to detect an electric current on a power supply line used to supply electric power from a power supply unit to a load device, a field effect transistor adapted to turn on and off the power supply line, and a controller adapted to control the field effect transistor according to the electric current on the power supply line, in which the controller starts counting time from a time point when the electric current on the power supply line exceeds the overcurrent detection threshold while maintaining the field effect transistor in an on state, sets an upper limit time corresponding to the electric current on the power supply line at that time as a time threshold based on a relationship between electric current and time set beforehand according to electrical characteristics of the field effect transistor, and turns off the field effect transistor when a time period corresponding to the time threshold elapses.. . ... Fdk Corporation

Isolated switching power supply

An isolated switching power supply of the present invention includes: a first circuit board provided with a pattern of a primary winding constituting an isolation transformer; a second circuit board provided with patterns of secondary windings constituting the isolation transformer, wherein a secondary winding pattern portion is arranged to face a primary winding pattern portion of the first circuit board at a predetermined interval; and a core inserted into the primary winding of the first circuit board and the secondary windings of the second circuit board and made of a magnetic body constituting the isolation transformer.. . ... Fdk Corporation

Voltage balance correction circuit

. . A voltage balance correction circuit includes multiple voltage correction circuits that correspond one-to-one to multiple electricity storage cells connected in series, and a control circuit that is configured to control the multiple voltage correction circuits based on voltages of the multiple electricity storage cells. The multiple voltage correction circuits include first coils that are connected to the electricity storage cells in parallel, respectively, field-effect transistors that are configured to turns on/off connections of the first coils with the electricity storage cells, respectively, under control of the control circuit, and second coils that are magnetically respectively coupled with the first coils. ... Fdk Corporation

Steel plate for forming battery can and alkaline battery

As a battery can forming steel plate that configures an electrode can (a positive electrode can) of an alkaline battery and is to be formed into a battery can by presswork, the steel plate as a base material includes an iron and nickel diffusion layer or an iron and nickel-cobalt alloy diffusion layer that is formed by forming a nickel plated layer or a nickel-cobalt alloy plated layer with a thickness of 0.5 to 2.0 μm on an inner surface of a battery can of a steel plate (base material steel plate) as a base material, and subsequently performing heat diffusion treatment on the nickel plated layer or the nickel-cobalt alloy plated layer. An average number of crystal grains per 0.25 mm2 unit area of the steel plate as the base material is equal to or more than 12.3.. ... Fdk Corporation

Alkaline battery

An alkaline battery has a positive electrode mixture containing manganese dioxide and a conductive material filling a tubular positive electrode can that is closed at one end. A negative electrode mixture containing a zinc powder filling on an inner peripheral side of a separator is disposed on an inside of the positive electrode mixture. ... Fdk Corporation

Coil device

A coil device includes two core members, one of which is e-shaped. The e-shaped core member has left and right side faces, and a center leg that extends in a vertical direction. ... Fdk Corporation

07/27/17 / #20170214032

Lamiinate-type power storage element and manufacturing method thereof

A laminate-type power storage element, including an exterior body that is formed in a flat bag shape, and an electrode body that has a sheet-shaped positive electrode and a sheet-shaped negative electrode layered via a separator and that is sealed inside the exterior body together with an electrolytic solution, wherein electrode terminal plates of the positive electrode and the negative electrode are guided in an identical direction from a predetermined margin of the exterior body to an outside of the exterior body, and a support part that is made with a film shaped resin having insulating and heat-resistant properties is formed on principal surface sides of the electrode terminal plates at a region that is along the predetermined margin and covers up to tip ends of the electrode terminal plates.. . ... Fdk Corporation

07/20/17 / #20170208694

Laminate-type power storage element and method of implementing the same

A laminate-type power storage element has a flat body and an interior layered flat plate-shaped electrode body. A positive electrode terminal plate is mounted to a positive electrode of the electrode body and is guided outside from a predetermined margin of the body. ... Fdk Corporation

07/20/17 / #20170207466

Laminate-type power storage element

A laminate-type power storage element, including an exterior body that is formed in a flat bag shape, an electrode body that has a sheet-shaped positive electrode and a sheet-shaped negative electrode and that is sealed inside the exterior body, a positive electrode terminal plate that is mounted to the positive electrode and that is made of a metal that forms an oxide film, and a negative electrode terminal plate that is mounted to the negative electrode and that is made of a metal that forms an oxide film, wherein the positive electrode terminal plate and the negative electrode terminal plate are guided in an identical direction from one margin of the exterior body to an outside of the exterior body, and have anisotropic conductive paint applied over respective principal surfaces thereof facing an identical side.. . ... Fdk Corporation

07/20/17 / #20170207465

Laminate-type power storage element and card electronic device

A laminate-type power storage element is configured of an exterior body that is formed in a flat bag shape by welding a first laminated film and a second laminated film by thermocompression bonding, and an electrode body that is sealed inside the exterior body, the electrode body having a sheet-shaped positive electrode and a sheet-shaped negative electrode. The first laminated film and the second laminated film respectively includes a first resin layer that has a property of transmitting a laser beam, a metal foil that is layered to the first resin layer, and a second resin layer is layered to the metal foil and has a thermal weldability.. ... Fdk Corporation

06/29/17 / #20170187234

Uninterruptible power source device

An uninterruptible power source device 10 in the present invention includes: an input-output terminal 11 that is connected in parallel with a power source line 21 through which electric power is supplied from an external power source 20 to a loading device 30; a battery unit 12 whose rated voltage is lower than a voltage v1 of the external power source 20; a dc/dc converter 13 that converts a voltage v2 of the battery unit 12 into a voltage v3 equivalent to a difference between the voltage v1 of the external power source 20 and the voltage v2 of the battery unit 12; a charging circuit 14 that charges the battery unit 12 through the input-output terminal 11 with the electric power of the external power source 20; and a discharging circuit 15 that performs discharge to the loading device 30 through the input-output terminal 11 at a voltage resulting from adding an output voltage v3 of the dc/dc converter 13 to the voltage v2 of the battery unit 12, at the time of electric power interruption of the external power source 20.. . ... Fdk Corporation

06/15/17 / #20170168101

Electric field intensity calculation program, electric field intensity calculation apparatus and electric field intensity calculation method

An electric field intensity calculation apparatus specifies, by analyzing a measurement result for a near magnetic field intensity distribution on a component side of a printed circuit, a maximum intensity of an evaluation target frequency component of a near magnetic field of the printed circuit and an area of a range, on the printed circuit, delimited by using, as its boundary, positions where intensity of the evaluation target frequency component of the near magnetic field attenuates by a predetermined factor relative to the maximum intensity, and calculate a far electric field intensity for the evaluation target frequency at a place at a distance from the printed circuit, based on the area, an electronic current value of an electronic current that generates a near magnetic field having the maximum intensity when flowing through the component side of the printed circuit, the evaluation target frequency, the distance, and a proportional coefficient.. . ... Fdk Corporation

06/01/17 / #20170155276

Uninterruptible power supply unit

An uninterruptible power supply unit includes: an input/output terminal connected in parallel with a power supply line which supplies power from an external power supply to a load device; a battery unit whose rated voltage is a voltage equal to a voltage of the external power supply; a dc/dc converter for converting the voltage of the external power supply into an output voltage corresponding to a difference between the rated voltage of the battery unit and the charging voltage of the battery unit; a charging circuit for charging the battery unit with a voltage equal to the voltage of the external power supply added with the output voltage of the dc/dc converter; and a discharging circuit that discharges power to the load device from the battery unit through the input/output terminal in the event that the external power supply is interrupted.. . ... Fdk Corporation

05/04/17 / #20170125804

Nickel hydrodgen secondary battery

A nickel hydrogen secondary battery includes an outer can and an electrode group accommodated in the outer can in a sealed state together with an alkaline electrolyte. The electrode group includes a positive electrode and a negative electrode having a separator sandwiched therebetween, the alkaline electrolyte includes naoh as the main solute, and the negative electrode includes a hydrogen storage alloy having a composition represented by a general formula: ln1-xmgxniy-zmz, wherein ln is at least one element selected from rare earth elements and zr; m is al; subscripts x, y and z satisfy the following relations, respectively: 0≦x≦0.05, 3.3≦y≦3.6, and 0≦z≦0.50; and the content of la among rare earth elements in ln is 25% or less.. ... Fdk Corporation

04/20/17 / #20170110764

Nickel hydrogen secondary battery

A nickel hydrogen secondary battery accommodates an electrode group including a positive electrode and a negative electrode which are stacked one on top of another through a separator, together with an alkaline electrolyte. The battery contains li, with a total amount of li in the battery 2 of 15 to 50 mg/ah, as determined as the mass in terms of lioh per ah of the positive electrode capacity. ... Fdk Corporation

03/02/17 / #20170063150

Uninterruptible power supply unit

An uninterruptible power supply unit is configured such that, during charging of a first battery pack, and until, after the first battery pack is charged to a fully charged state, the voltage of the first battery pack is lowered below an upper limit voltage of a load device, discharging of the first battery pack is prohibited, and discharging of the second battery pack is allowed, and such that, during charging of a second battery pack, and until, after the second battery pack is charged to a fully charged state, the voltage of the second battery pack is lowered below the upper limit voltage of the load device, discharging of the second battery pack is prohibited, and discharging of the first battery pack is allowed.. . ... Fdk Corporation








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