Patents by Inventor Tomohiro Ikeda

Tomohiro Ikeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150129299
    Abstract: An object of the present invention is to provide an electrical connection box in which reduction in weight can be achieved by simplification of the construction, while preventing short-circuiting of a positive electrode side busbar and a negative electrode side busbar. An electrical connection box includes: a positive electrode side busbar connected to a positive electrode of a battery; a negative electrode side busbar connected to a negative electrode of the battery; and a case in which the positive electrode side busbar and the negative electrode side busbar are accommodated. The case includes: a bottom wall; a circumferential wall erected from the bottom wall; and a partition wall erected from the bottom wall. The partition wall is a waterproof partition that partitions a positive electrode side busbar accommodating area and a negative electrode side busbar accommodating area.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 14, 2015
    Applicant: YAZAKI CORPORATION
    Inventors: Tomohiro IKEDA, Kouji KOIZUMI, Hirokuni KOIKE
  • Patent number: 9017099
    Abstract: An instrument box and a terminal block including a resin housing and a bus bar are provided. The resin housing has a housing body fixed to a box wall surface; and a bus bar housing formed integrally with the housing body and inserted into an insertion hole of the box wall surface. The bus bar has a bus bar body inserted into the insertion hole with fitted in the resin housing and housed in the bus bar housing; a first terminal connecting portion on one side of the bus bar body to connect with the cable terminal end outside the instrument box; and a second terminal connecting portion on another side of the bus bar body to connect with the terminal inside the instrument box.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 28, 2015
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Yoshinobu Furuya, Kiyotaka Hanaoka, Takahiko Okumura
  • Patent number: 8986024
    Abstract: A power supply circuit disconnection device includes: a first connector housing (10); a second connector housing (20); a lever (30); a main circuit switch (SW1) that is switched off at a first operation position of the lever, and is switched on at a connector fitting operation position and second operation position of the lever; a signal circuit switch (SW2) that is switched off at the first operation position and connector fitting operation position of the lever; a first lock portion (LK1) that locks the lever at the second operation position; a second lock portion (LK2) that locks the lever at the connector fitting operation position; and a lock release operation portion capable of releasing, by an operation thereof, a lock state of the second lock portion.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: March 24, 2015
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Fumitoshi Henmi, Yuichi Motoshige
  • Patent number: 8941386
    Abstract: A busbar for battery electrode post connection with a terminal for voltage detection is provided. Both ends of a length direction of a rectangular thin plate of a conductive metal are left and an elongated opening is formed in a center. Two holes through which an electrode post of one battery and an electrode post of an adjacent battery are inserted are respectively formed in the rectangular thin plates of both sides around the elongated opening of the center. A terminal for voltage detection is extended integrally to the rectangular thin plate from an edge of the rectangular thin plate. The two holes overlap in a state of where the rectangular thin plate is folded in two with respect to the elongated opening. The terminal for voltage detection can be erected from the rectangular thin plate by folding the terminal for voltage detection in a vertical direction.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: January 27, 2015
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Shinichi Yanagihara, Hideki Inoue
  • Patent number: 8933338
    Abstract: A terminal block for a vehicle-mounted battery assembly, the terminal block being attached to a total positive/negative terminal block which is attached to the vehicle-mounted battery assembly. An external extraction positive-side fastening portion and an external extraction negative-side fastening portion are positioned at different heights. A terminal cover is configured to cover the external extraction positive-side fastening portion. The terminal cover includes a fitting portion fitted into the terminal block for the vehicle-mounted battery assembly, a hinge portion engaged with the fitted portion, an arm portion engaged with the hinge portion, and a cover body engaged with the arm portion. The arm portion has a predetermined length, so that by hinge operation of the hinge portion, the cover body covers both the external extraction positive-side fastening portion and the external extraction negative-side fastening portion which are positioned at different heights.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: January 13, 2015
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Ryuta Takishita, Yukihisa Kikuchi, Masaru Imai, Keizo Aoki
  • Patent number: 8915749
    Abstract: A power source circuit shutoff device includes: a base housing including a first mating wall and a cam pin; a lever housing including a second mating wall; and an operation lever rotatably supported to the lever housing and having a cam groove for guiding the cam pin. The base housing and the lever housing are set to a lever mating start position in which the first mating wall and the second mating wall are partly overlapped with each other and the cam pin is entered into the cam groove of the operation lever, and a rotation of the operation lever moves the cam pin in the cam groove to thereby cause a mating force between the first mating wall and the second mating wall. The base housing and the lever housing respectively have restriction ribs.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: December 23, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Ryuta Takishita, Kouichiro Mochizuki, Fumitoshi Henmi, Teruhiko Ohike, Sho Nogashira
  • Publication number: 20140371058
    Abstract: Provided is a novel catalyst structure capable of maintaining gas diffusivity to a deep part of a catalyst layer even under condition of a high gas flow rate. Proposed is a catalyst structure, which has a porous apatite catalyst layer containing an oxide (hereinafter referred to as “apatite”) whose crystalline structure belongs to an apatite type, and in which, in logarithmic differentiation void volume distribution measured by a mercury intrusion porosimeter, a peak top is present within a void volume diameter range of 100 nm to 1000 nm.
    Type: Application
    Filed: December 28, 2012
    Publication date: December 18, 2014
    Inventors: Yuki Nagao, Yunosuke Nakahara, Yasunori Imada, Ohki Houshito, Noriaki Iwata, Shinichi Tosa, Syouji Inose, Masanori Hashimoto, Tomohiro Ikeda
  • Patent number: 8859134
    Abstract: A battery connector includes: a plurality of terminals, each of which is to be connected to each electrode of a plurality of batteries; and a case which contains the plurality of terminals therein. The case includes a terminal fixing part in which the plurality of terminals are fixed, and an insulating cover which is supported to be displaced to a closing position at which an open face of the terminal fixing part is covered by the insulating cover. A wire guide is formed in an outer surface of the insulating cover in the closing position.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: October 14, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Keizo Aoki, Yukihisa Kikuchi, Ryuta Takishita, Kaiho Ryu, Masaru Imai
  • Patent number: 8858246
    Abstract: A power source circuit shutoff device includes: a base housing including a first mating wall and a cam pin; a lever housing including a second mating wall; and an operation lever rotatably supported to the lever housing and having a cam groove for guiding the cam pin. The base housing and the lever housing are set to a lever mating start position in which the first mating wall and the second mating wall are partly overlapped with each other and the cam pin is entered into the cam groove of the operation lever, and a rotation of the operation lever moves the cam pin in the cam groove to thereby cause a mating force between the first mating wall and the second mating wall. The base housing and the lever housing respectively have restriction ribs.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: October 14, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Ryuta Takishita, Kouichiro Mochizuki, Fumitoshi Henmi, Teruhiko Ohike, Sho Nogashira
  • Patent number: 8854797
    Abstract: A power source circuit shut off apparatus shuts off a circuit of a battery assembly in which plural battery cells connected in series are arranged in parallel. The power source circuit shut off apparatus includes a housing, a pair of bus bars that is arranged in the housing and is connected to the adjacent battery cells respectively, a switch section that is adapted to conduct electrical connection or disconnection between the pair of bus bars, and a retaining member which is formed on the housing and is configured to be retained to a resin frame part of a side surface of the battery cell.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: October 7, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Hiroyuki Kato
  • Patent number: 8842408
    Abstract: There is provided a power supply circuit, in which cost reduction is realized by reducing the number of electric wires. An inverter 3 and a motor 4 are supplied with power by a high-voltage battery 21. Relays 22a to 22c are provided between the high-voltage battery 21 and the inverter 3. Both ends of each of relay coils C provided to the relays 22a to 22c are connected to an ECU 5, and the ECU 5 controls a current flowing through the relay coils C and thereby controls the turning on and off of the relays 22a to 22c. A service plug 6 is detachably provided between batteries making up the high-voltage battery 21, and when the service plug 6 is detached, the supply of power from the high-voltage battery 21 to the inverter 3 and the motor 4 is blocked and when the service plug 6 is attached, the supply of power from the high-voltage battery 21 to the inverter 3 and the motor 4 is enabled.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: September 23, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Hirotaka Hasegawa
  • Patent number: 8840409
    Abstract: The prevent invention provides a lever-equipped connector unit, which comprises a housing being capable of receiving a terminal; a lever rotatably coupled to the housing, and formed in a horseshoe shape; and a counter housing engageable with the housing, wherein the lever has a pair of arm plates configured to sandwich the housing and having a cam portion therein, wherein the counter housing has a peripheral wall engageable with the housing, and a pair of driven pins being slidably engageable with the cam portion and formed in the both outer surfaces of the peripheral wall, and wherein the housing engages with the counter housing as the driven pin proceeds into the cam portion, and the lever rotates from its stand-by state.
    Type: Grant
    Filed: July 28, 2012
    Date of Patent: September 23, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Ryuta Takishita, Kouichiro Mochizuki, Teruhiko Ohike, Sho Nogashira
  • Patent number: 8822062
    Abstract: The power-supply device includes: a battery assembly composed of a plurality of batteries each having a positive electrode end and a negative electrode end, said batteries overlapped with each other in a manner that electrodes having the different polarities are adjacent to each other; a plurality of bus bars connecting the batteries in series by connecting the adjacent electrodes having the different polarities in the battery assembly; and a terminal having an electric contact part attached to each bus bar, and a wire connecting part continued to the electric contact part, and attached to an electric wire connected to a voltage measuring device for measuring a voltage of the battery. The electric contact part includes a pair of clipping pieces disposed with a gap from each other, and connected to the bus bar by press-inserting the bus bar into between the clipping pieces.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: September 2, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Keizo Aoki
  • Patent number: 8816538
    Abstract: An electric junction box, having a terminal portion positioned in the connector engagement portion and arranged perpendicular to a direction along which case members attach each other, which can be assembled easily without increasing the number of components and manufacturing cost is provided. Also, a power supply device having the above-described electric junction box is provided. The electric junction box includes: a box main body having a connector engagement portion and an upper case attached to a lower case in an overlapping relationship; and a bus bar received in the box main body. The lower case includes a bottom wall portion, a positioning wall and peripheral walls. The bus bar includes the terminal portion positioned in the connector engagement portion, a positioning plate portion and a mount portion. The peripheral wall includes a cutout portion allowing the positioning plate portion to move into and out from the lower case.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: August 26, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Yoshinobu Furuya
  • Patent number: 8777668
    Abstract: A wiring member is provided that can suppress an influence due to deviation of a position of connection as much as possible so as to maintain a good wiring state. The wiring member 11 is formed of a flexible printed circuit board to be connected to terminals of a plurality of batteries. The wiring member 11 includes a straight section 21 which is disposed along arrangement of aligned terminals, and a plurality of branch sections 22 which extend toward positions of connection to the respective terminals from the straight section 21 so as to be connected thereto. The branch sections 22 have deflection portions 32 which can be deformed in response to displacement of the straight section 21 in the longitudinal direction.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: July 15, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Katsunori Sato, Hiroyuki Kato
  • Patent number: 8765289
    Abstract: A power supply unit includes: a plurality of batteries each of which has a positive electrode 8 at one end and a negative electrode at the other end; and a bus bar module connecting the batteries in series. The bus bar module includes: a plurality of bus bars each having a pair of connecting parts respectively connected to the electrodes adjacent to each other of the batteries adjacent to each other, and a coupling part coupling the pair of connecting parts to each other; a plurality of terminals each elastically clamping the electrodes and the connecting parts to electrically connect the electrodes to the connecting parts; and a plate to which the bus bars and the terminals are attached. The electrodes are formed in a flat plate shape, and thickness directions of the electrodes which are connected to each other by the bus bar are perpendicular to each other.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: July 1, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Takao Shoji, Shinichi Yanagihara, Hideki Inoue
  • Patent number: 8734170
    Abstract: A connector engagement body includes: a first connector including a first signal terminal and a first power supply terminal; a second connector including a power supply terminal locking portion, a signal terminal locking portion, a second signal terminal, and a second power supply terminal; and a lever including a signal terminal releasing portion, a power supply terminal releasing portion, a power supply terminal locked portion, and a signal terminal locked portion. The lever is engaged with the first connector and the second connector and causes a mating force and a separating force to act between the first connector and the second connector by moving between a mated position and a separated position relative to the first connector and the second connector.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: May 27, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Ryuta Takishita, Kouichiro Mochizuki, Teruhiko Ohike, Sho Nogashira
  • Patent number: 8692418
    Abstract: A downsized electric junction box and a power supply device having the same are provided. The electric junction box includes: a box main body including a connector engagement portion to be engaged with a connector and relay mount portions for mounting relays; and a wiring unit received in the box main body including mount portions mounted on a bottom wall of a lower case of the box main body and a plurality of terminal portions positioned inside the connector engagement portion and extending from the mount portions. A terminal positioning portion of the lower case includes a planar wall positioning the terminal portions on a surface thereof, extending walls extending from between the adjacent terminal portions, and parallely-projecting walls each projecting from an end of the extending wall in parallel with the planar wall. The mount portion includes a cutout portion through which the parallely-projecting wall is passed.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: April 8, 2014
    Assignee: Yazaki Corporation
    Inventors: Tomohiro Ikeda, Yoshinobu Furuya
  • Publication number: 20140087591
    Abstract: A busbar plate includes a busbar plate main body and total plus/minus terminal blocks. The busbar plate main body includes a terminal accommodating chamber part having a plurality of terminal accommodating chambers. The total plus/minus terminal blocks are externally attached to terminal accommodating chambers at two ends of the busbar plate respectively, and are formed of terminal block main bodies and busbars. One ends of the busbars are fastened to total plus/minus terminals in the terminal accommodating chambers at the two ends, the other ends of the busbars are fastened to an adjacent module or a connecting busbar of an external equipment. Flexible resin material is used for the busbar plate main body, and high strength resin material is used for the terminal block main bodies.
    Type: Application
    Filed: December 3, 2013
    Publication date: March 27, 2014
    Applicant: Yazaki Corporation
    Inventors: Tomohiro IKEDA, Ryuta TAKISHITA, Yukihisa KIKUCHI, Masaru IMAI, Keizo AOKI
  • Patent number: 8639222
    Abstract: A message transmission method includes storing message data whose message contents change depending on a value of a parameter in a storage unit, acquiring the value of the parameter based on an operation of a called party when a second terminal device receives a call from a first terminal device, determining the contents of the message based on the acquired parameter value and the message data, and transmitting the message whose contents are determined to the first terminal device.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: January 28, 2014
    Assignee: Fujitsu Limited
    Inventors: Tomohiro Ikeda, Yuuji Nanba, Shuichi Enomoto, Tooru Natsumi, Hiroyuki Tanaka, Yukio Kise, Hideo Shirai, Minao Tanaka, Naoto Matsuo, Takashi Nagata, Shigehiro Takeuchi