公开(公告)号：US20190006856A1

公开(公告)日：2019-01-03

申请号：US16073316

申请日：2017-01-27

Applicant: FDK CORPORATION

Inventor： Yasunari Mizoguchi ,  Kazuta Takeno ,  Kunihisa Sekiguchi ,  Kenji Kitamura ,  Takashi Kano

IPC: H02J7/00 ,  H01M10/44

Abstract: A charging circuit includes a first power source circuit that supplies charging power to secondary batteries; a switch that controls the supply of the power; and a control device that performs switching control of the switch. The control device detects a voltage difference between the secondary batteries before starting charging; starts a timer and starts serial charging of the secondary batteries; on the condition that the voltage difference before the charging has been equal to or larger than a first threshold, if respective voltage values of the secondary batteries have both become equal to or larger than a second threshold before the timer expires, shortens a remaining time on the timer at that time point; and finishes the serial charging of the secondary batteries at the earlier of a time point when the secondary batteries have both become fully charged, or a time point when the timer has expired.

公开(公告)号：US10097036B2

公开(公告)日：2018-10-09

申请号：US15324263

申请日：2015-05-21

Applicant: FDK CORPORATION

Inventor： Takuya Harada ,  Takashi Kabasawa ,  Jinichi Sakamoto

IPC: H02J9/06 ,  H02J7/00

Abstract: 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.

公开(公告)号：US20180219206A1

公开(公告)日：2018-08-02

申请号：US15868922

申请日：2018-01-11

Applicant: FDK CORPORATION

Inventor： Hidefumi Isaji ,  Hiroyuki Shibaoka ,  Isao Mugima ,  Tomomi Nakamura ,  Tetsu Yamanaka

IPC: H01M2/26 ,  H01M10/30 ,  H01M10/28

Abstract: A current collecting lead is interposed between a sealing body and a positive electrode current collector for connecting the sealing body and the positive electrode current collector, the sealing body including a positive electrode terminal, the positive electrode current collector being attached to an electrode group, the current collecting lead including: a top wall portion positioned on the side of the sealing body; leg portions positioned on the side of the positive electrode current collector and that face the top wall portion; and a pair of side wall portions that extend between side edges of the top wall portion and side edges of the leg portions and that face each other, a first corner portion and a second corner portion formed by the top wall portion and the side wall portions and a third corner portion and a fourth corner portion formed by the leg portions and the side wall portions being rounded corners that are curved.

公开(公告)号：US20180175453A1

公开(公告)日：2018-06-21

申请号：US15849565

申请日：2017-12-20

Applicant: FDK CORPORATION

Inventor： Yuki Ochiai ,  Naoaki Nishimura ,  Daisuke Hirata ,  Keita Yamamoto

IPC: H01M10/0585 ,  H01M4/36 ,  H01M4/62 ,  H01M4/04 ,  H01M2/02

CPC classification number: H01M10/0585 ,  H01M2/0207 ,  H01M4/0404 ,  H01M4/36 ,  H01M4/621 ,  H01M6/188 ,  H01M10/052

Abstract: 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. The at least one of the electrode plates includes: a sheet-shaped metal current collector; and an electrode material. The electrode material includes a powder material including an electrode active material and a binder including an emulsion, the binder added to the powder material. The electrode material is applied, at a predetermined thickness, onto the current collector. The at least one of the electrode plates is formed into a predetermined planar shape by shearing off a peripheral area thereof through a shearing process.

公开(公告)号：US09972837B2

公开(公告)日：2018-05-15

申请号：US14710805

申请日：2015-05-13

Applicant: BASF Corporation ,  FDK Corporation

Inventor： Kwo Young ,  Taihei Ouchi ,  Jean Nei ,  Diana Wong ,  Shigekazu Yasuoka

IPC: C22C30/02 ,  H01M4/38 ,  C22C30/00 ,  H01M4/90 ,  H01M10/30 ,  H01M8/083 ,  H01M12/08 ,  C22C19/03 ,  C22C19/00 ,  C01B3/00

CPC classification number: H01M4/383 ,  C01B3/0047 ,  C22C19/007 ,  C22C19/03 ,  C22C30/00 ,  C22C30/02 ,  H01M4/9041 ,  H01M8/083 ,  H01M10/30 ,  H01M12/08 ,  Y02E60/327

Abstract: 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

公开(公告)号：US20180131001A1

公开(公告)日：2018-05-10

申请号：US15861854

申请日：2018-01-04

Applicant: BASF Corporation ,  FDK Corporation

Inventor： Kwo Young ,  Taihei Ouchi ,  Jean Nei ,  Diana Wong ,  Shigekazu Yasuoka

IPC: H01M4/38 ,  C22C19/00 ,  C22C19/03 ,  C01B3/00 ,  H01M12/08 ,  H01M10/30 ,  H01M4/90 ,  C22C30/00 ,  C22C30/02 ,  H01M8/083

CPC classification number: H01M4/383 ,  C01B3/0047 ,  C22C19/007 ,  C22C19/03 ,  C22C30/00 ,  C22C30/02 ,  H01M4/9041 ,  H01M8/083 ,  H01M10/30 ,  H01M12/08 ,  Y02E60/327

Abstract: 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

公开(公告)号：US20180047966A1

公开(公告)日：2018-02-15

申请号：US15556296

申请日：2016-02-23

Applicant: FDK CORPORATION

Inventor： Makoto Sakaguchi ,  Takashi Hirabayashi

IPC: H01M2/20 ,  H01M2/34 ,  H01M2/10

CPC classification number: H01M2/20 ,  H01M2/10 ,  H01M2/1016 ,  H01M2/34

Abstract: 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.

公开(公告)号：US20180040410A1

公开(公告)日：2018-02-08

申请号：US15555827

申请日：2016-02-25

Applicant: FDK CORPORATION

Inventor： Kenji Hamada ,  Tomoyuki Nagayoshi ,  Tadashi Sato ,  Norio Fukui

IPC: H01F27/28 ,  H02M7/00 ,  H02M1/00 ,  H02M3/335

CPC classification number: H01F27/2804 ,  H01F30/10 ,  H01F2027/2809 ,  H01F2027/2819 ,  H02M1/00 ,  H02M3/28 ,  H02M3/33592 ,  H02M7/003 ,  H02M2001/0054 ,  H05K1/0262 ,  H05K1/144 ,  H05K1/16 ,  H05K1/165 ,  H05K2201/042 ,  H05K2201/086 ,  H05K2201/2036 ,  Y02B70/1491

Abstract: 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.

公开(公告)号：US09728764B2

公开(公告)日：2017-08-08

申请号：US14420629

申请日：2013-08-07

Applicant: FDK CORPORATION ,  LITTELFUSE JAPAN G.K.

Inventor： Tatsuya Nagai ,  Koji Izumi

IPC: H01M2/34 ,  H01M2/02 ,  H01M2/08 ,  H01M10/30 ,  H01M2/26 ,  H01M10/28

CPC classification number: H01M2/348 ,  H01M2/022 ,  H01M2/08 ,  H01M2/263 ,  H01M10/286 ,  H01M10/30 ,  H01M2200/106 ,  H01M2220/30 ,  Y02E60/124 ,  Y02P70/54

Abstract: The present invention provides a heat suppressing alkaline storage battery including a positive electrode lead having a downsized portion that incorporates a PTC thermistor. A battery includes a positive electrode lead having a first lead half body, a second lead half body, and a PTC thermistor, the first and second lead half bodies overlap end portions formed in a portion where the first and second lead half bodies overlap with each other, the overlap end portions being larger than the PTC thermistor as viewed from a plane and being in contact with the PTC thermistor, the PTC thermistor is fitted in a fitting recessed portion formed in the overlap end portion of the first lead half body, and an exposed portion of the PTC thermistor is covered with a protective material.

公开(公告)号：US20170168101A1

公开(公告)日：2017-06-15

申请号：US15116030

申请日：2015-07-23

Applicant: FUJITSU TEN LIMITED ,  FDK CORPORATION

Inventor： Jun INAMI ,  Katsuji HIRABAYASHI ,  Manabu TERANISHI

IPC: G01R29/08

CPC classification number: G01R29/08 ,  G01R29/0814 ,  G01R31/002 ,  G01R31/2817

Abstract: 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.