Patents by Inventor Ko Watanabe

Ko Watanabe 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: 20230029439
    Abstract: A method for recycling a rare earth magnet is described. The rare earth magnet has a film containing Ni on the surface thereof, and the method involves immersing the rare earth magnet in a stripping solution containing a derivative of nitrobenzene, ethylenediamine, and ammonia. This strips the Ni on the surface of the rare earth magnet without deteriorating the characteristics of the rare earth magnet, thereby improving its product yield.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 26, 2023
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Ko WATANABE, Kazuhito AKADA, Yuta KURIBARA, Yoshiyuki HAYASHI
  • Patent number: 7921951
    Abstract: Two side members are provided so as to be in side portions of a vehicle. Each side member is provided with a kick-up portion curved upward. A cross member is provided so as to interconnect side surfaces of forward portions of the kick-up portions of the two side members. A forward portion of a battery pack is fixed to an upper surface of the cross member via forward brackets welded to the forward portion of the battery pack. A rearward portion of the battery pack is fixed to upper surfaces of rearward portions of the kick-up portions of the two side members via a bridge provided so as to interconnect the two side members.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: April 12, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ko Watanabe, Syuji Nagase
  • Patent number: 7913787
    Abstract: A power source pack is arranged on a floor in such a manner that the vehicle front side is positioned higher than the vehicle rear side. Specifically, the front side of the power source pack is placed on a cross member qualified as a structural member that is fixed to traverse the vehicle on the floor. By such a configuration, it is possible to provide a structure for mounting a power source pack that is configured to be less vulnerable to the heat penetrating from a lower surface of the floor to the interior of a cabin even if the power source pack is arranged on the floor.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: March 29, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ko Watanabe, Hajime Oyanagi
  • Patent number: 7823672
    Abstract: A structure of a hybrid vehicle includes a battery pack arranged on a floor panel and an exhaust pipe extending from an engine, passing below the floor panel, to an exhaust port. The battery pack has a secondary battery constituted by a plurality of battery cells stacked in a vehicle traveling direction for supplying electric power to a motor, and an intake chamber provided adjacent to the secondary battery in a substantially horizontal direction perpendicular to the direction along which the plurality of battery cells are stacked for supplying cooling air between each of the plurality of battery cells. The exhaust pipe is provided so that it passes immediately below the battery pack and passes a position displaced from a position immediately below the intake chamber. With such a configuration, a structure of a hybrid vehicle that suppresses reduction in the efficiency of cooling a secondary battery without placing a great limit on routing of an exhaust pipe is provided.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: November 2, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ko Watanabe, Toshiyuki Hosokawa
  • Publication number: 20100170736
    Abstract: Two side members are provided so as to be in side portions of a vehicle. Each side member is provided with a kick-up portion curved upward. A cross member is provided so as to interconnect side surfaces of forward portions of the kick-up portions of the two side members. A forward portion of a battery pack is fixed to an upper surface of the cross member via forward brackets welded to the forward portion of the battery pack. A rearward portion of the battery pack is fixed to upper surfaces of rearward portions of the kick-up portions of the two side members via a bridge provided so as to interconnect the two side members.
    Type: Application
    Filed: February 25, 2010
    Publication date: July 8, 2010
    Inventors: Ko WATANABE, Syuji NAGASE
  • Patent number: 7717207
    Abstract: Two side members are provided so as to be in side portions of a vehicle. Each side member is provided with a kick-up portion curved upward. A cross member is provided so as to interconnect side surfaces of forward portions of the kick-up portions of the two side members. A forward portion of a battery pack is fixed to an upper surface of the cross member via forward brackets welded to the forward portion of the battery pack. A rearward portion of the battery pack is fixed to upper surfaces of rearward portions of the kick-up portions of the two side members via a bridge provided so as to interconnect the two side members.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: May 18, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ko Watanabe, Syuji Nagase
  • Patent number: 7631712
    Abstract: A battery assy is mounted in a luggage room or beneath the rear seat. In the battery assy, a battery pack having a configuration of an approximate rectangle, when viewed from the side of the vehicle, is stored in an inclined manner in a casing formed of a battery cover and a lower case, having a configuration of an approximate parallelogram, when viewed from the side of the vehicle. A resin chamber is provided at a gap in the frontward position and the rearward position of the battery assy. A channel of cooling air is formed at a gap in the upper region and the lower region of the battery assy. The battery assy is mounted such that the bottom is protruding towards the front of the vehicle.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: December 15, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ko Watanabe
  • Publication number: 20090173558
    Abstract: A power source pack is arranged on a floor in such a manner that the vehicle front side is positioned higher than the vehicle rear side. Specifically, the front side of the power source pack is placed on a cross member qualified as a structural member that is fixed to traverse the vehicle on the floor. By such a configuration, it is possible to provide a structure for mounting a power source pack that is configured to be less vulnerable to the heat penetrating from a lower surface of the floor to the interior of a cabin even if the power source pack is arranged on the floor.
    Type: Application
    Filed: February 21, 2007
    Publication date: July 9, 2009
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ko Watanabe, Hajime Oyanagi
  • Publication number: 20080318119
    Abstract: In a battery pack, battery pack flange portions are provided at opposing sides of a battery assembly along a stacking direction of battery modules, so as to project laterally. The battery module flange portions are interposed between an upper case flange portion and a lower case flange portion when the upper case flange portion and the lower case flange portion are overlaid, and fastened and fixed concurrently by bolts. The bolts are also used in fixing the battery pack to a vehicle. With this configuration, a battery pack that can reduce assembly steps with the bolts and the like to improve efficiency in the fastening work can be provided.
    Type: Application
    Filed: February 23, 2006
    Publication date: December 25, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ko Watanabe, Hajime Oyanagi
  • Publication number: 20080274397
    Abstract: A battery assy is mounted in a luggage room or beneath the rear seat. In the battery assy, a battery pack having a configuration of an approximate rectangle, when viewed from the side of the vehicle, is stored in an inclined manner in a casing formed of a battery cover and a lower case, having a configuration of an approximate parallelogram, when viewed from the side of the vehicle. A resin chamber is provided at a gap in the frontward position and the rearward position of the battery assy. A channel of cooling air is formed at a gap in the upper region and the lower region of the battery assy. The battery assy is mounted such that the bottom is protruding towards the front of the vehicle.
    Type: Application
    Filed: April 28, 2005
    Publication date: November 6, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ko Watanabe
  • Patent number: 7427093
    Abstract: To provide a mounting structure for a vehicle battery pack which prevents damage to the vehicle battery pack and has improved safety, a mounting structure for a vehicle battery pack has a body with a floor panel, a front seat provided on the floor panel, a vehicle battery pack provided under the front seat, and a protection member provided on a vehicle rear side relative to the vehicle battery pack and protecting the vehicle battery pack. The protection member can be fastened to the body.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: September 23, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ko Watanabe, Shuji Nagase, Keiji Shukuya
  • Patent number: 7402918
    Abstract: An arrangement structure of an electric junction box is provided, by which damage of the electric junction box in the event of a collision of a vehicle can be reduced and a plurality of electric wires can be easily connected to the electric junction box with good workability. The arrangement structure includes: a high voltage battery; a battery pack for receiving the battery, the battery pack being mounted on a vehicle; and an electric junction box arranged in the battery pack, the electric junction box being connected to the battery, wherein on the assumption that a collision takes place on the battery pack-mounting side of the vehicle, the electric junction box is arranged on the side of a wall of the battery pack, the wall being situated on the side opposite to the collision side of the vehicle.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: July 22, 2008
    Assignees: Yazaki Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiro Ikeda, Yoshiaki Ichikawa, Shigeki Matsumoto, Ko Watanabe, Takenori Tsuchiya
  • Publication number: 20080164081
    Abstract: A structure of a hybrid vehicle includes a battery pack arranged on a floor panel and an exhaust pipe extending from an engine, passing below the floor panel, to an exhaust port. The battery pack has a secondary battery constituted by a plurality of battery cells stacked in a vehicle traveling direction for supplying electric power to a motor, and an intake chamber provided adjacent to the secondary battery in a substantially horizontal direction perpendicular to the direction along which the plurality of battery cells are stacked for supplying cooling air between each of the plurality of battery cells. The exhaust pipe is provided so that it passes immediately below the battery pack and passes a position displaced from a position immediately below the intake chamber. With such a configuration, a structure of a hybrid vehicle that suppresses reduction in the efficiency of cooling a secondary battery without placing a great limit on routing of an exhaust pipe is provided.
    Type: Application
    Filed: June 7, 2006
    Publication date: July 10, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ko Watanabe, Toshiyuki Hosokawa
  • Patent number: 7381065
    Abstract: Preventing a controller securely from effects of heat or noise of a relay and a high-tension circuit, a synthetic resin inner cover is arranged between a top cover and a bottom cover. A high-tension circuit is arranged between the top cover and inner cover. A control baseboard is provided at the bottom cover. The bottom cover is covered by the inner cover. Thereby, the control baseboard is prevented from being heated by the high-tension circuit by the inner cover. A conductive metallic shielding cover is arranged between the bottom cover having the control baseboard and the inner cover to cover the bottom cover including the control baseboard. Thereby, the control baseboard is prevented from noise of the high-tension circuit. The inner cover and the shielding cover having respectively a flange are fixed on a vehicle body by a bolt to overlap the both flanges.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: June 3, 2008
    Assignees: Yazaki Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiro Ikeda, Yoshiaki Ichikawa, Shigeki Matsumoto, Ko Watanabe, Takenori Tsuchiya
  • Publication number: 20070284167
    Abstract: In the battery pack, a battery module cover is fixed to a lower case using a security bolt (break-head bolt) in an undetachable manner in order to prevent charge and discharge with respect to a battery module which is a secondary battery from/to an external source. An auxiliary component cover is fixed to the lower case by an ordinary bolt and a nut in order to allow an electronic component within an auxiliary component to be replaced. By this configuration, there are provided a battery pack having a structure which allows the auxiliary component to be serviced while ensuring safety during transportation in the case where the battery pack is to be serviced, and a motor vehicle incorporating the battery pack.
    Type: Application
    Filed: February 14, 2006
    Publication date: December 13, 2007
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ko Watanabe, Syuji Nagase
  • Publication number: 20070215399
    Abstract: Two side members are provided so as to be in side portions of a vehicle. Each side member is provided with a kick-up portion curved upward. A cross member is provided so as to interconnect side surfaces of forward portions of the kick-up portions of the two side members. A forward portion of a battery pack is fixed to an upper surface of the cross member via forward brackets welded to the forward portion of the battery pack. A rearward portion of the battery pack is fixed to upper surfaces of rearward portions of the kick-up portions of the two side members via a bridge provided so as to interconnect the two side members.
    Type: Application
    Filed: February 24, 2005
    Publication date: September 20, 2007
    Inventors: Ko Watanabe, Syuji Nagase
  • Publication number: 20070128507
    Abstract: To provide a mounting structure for a vehicle battery pack which prevents damage to the vehicle battery pack and has improved safety, a mounting structure for a vehicle battery pack has a body with a floor panel, a front seat provided on the floor panel, a vehicle battery pack provided under the front seat, and a protection member provided on a vehicle rear side relative to the vehicle battery pack and protecting the vehicle battery pack. The protection member can be fastened to the body.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 7, 2007
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ko Watanabe, Shuji Nagase, Keiji Shukuya
  • Patent number: 7125628
    Abstract: A battery pack comprises a plurality of rectangular shaped batteries, wherein each of the plurality of rectangular shaped batteries is formed into a thin rectangular-parallelepiped shape, and wherein the plurality of rectangular shaped batteries are stacked side-by-side in a thickness direction, and a pair of pressurizing plates, wherein one of the pressurizing plates is located at each end of the stacked rectangular shaped batteries oriented in the thickness direction, wherein the pressurizing plates are elastically pushed against each other to pressurize the plurality rectangular shaped batteries.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: October 24, 2006
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shuhei Marukawa, Ko Watanabe, Toyohiko Etoh, Keiji Shukuya, Shogo Yoneda
  • Patent number: 7112387
    Abstract: A battery power supply device of the present invention includes a battery pack in which a plurality of battery modules each includes a plurality of cells which are serially connected together both electrically and mechanically, the plurality of battery modules housed in a holder, and the battery power supply device is structured so that a cooling medium flows around each cell and/or each battery module; the battery back is provided with a plurality of vent holes having different aperture areas which are distributed over at least one of inlet and outlet sides of the battery pack such that a cooling medium having a substantially uniform flow rate flows around each cell and/or each battery module.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: September 26, 2006
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinya Kimoto, Takaki Kobayashi, Ko Watanabe
  • Patent number: 7060116
    Abstract: The combined battery of the present invention includes two end plates and a plurality of general cells stacked adjacent each other and bound by two end plates. The general cells are provided with a battery container made of resin, and bound by two end plates with a binding force equal to or lower than a threshold value determined based on the number and the compressibility of the cells and the stiffness of the battery container, in such a manner that no more than a predetermined amount of irreversible deformation will be caused in the battery container.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: June 13, 2006
    Assignees: Matsushita Electric Industrial Co., Ltd., Toyota Jidoshi Kabushiki Kaisha
    Inventors: Shuhei Marukawa, Ko Watanabe, Toyohiko Eto, Masayoshi Iwase, Tomokazu Yamauchi, Takahiko Miki