Patents by Inventor Osamu Akatsuchi

Osamu Akatsuchi 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).

  • Patent number: 8080333
    Abstract: Positive and negative terminals formed on a top face of a unit cell and positive and negative terminals formed on a surface of a circuit board opposed to the unit cell are electrically connected to each other by connectors. The connectors each include an elastic body formed from an elastic material, and a conductor which is placed so as to be exposed on upper and lower surfaces of the elastic body and which serves for electrically connecting those exposed portions to each other. By elastic restoring force of the elastic body generated by elastic compression of the elastic body between the terminals, the upper and lower surfaces of the connectors are put into press contact between the opposing positive and negative terminals of the unit cell and the circuit board, by which their electrical connection is maintained.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: December 20, 2011
    Assignee: Hitachi Maxell Engery, Ltd.
    Inventors: Osamu Akatsuchi, Hiroshi Yamamoto, Takashi Sumida
  • Publication number: 20090092860
    Abstract: A battery pack has a unit cell including a battery case having an opening and made of metal and including a sealing plate closing and sealing the opening of the battery case and made of metal, a circuit board having a safety circuit, and a holding member holding the circuit board, and employs a structure in which at least part of the holding member is fixed to the unit cell by laser welding. By the employment of such a structure, the battery pack can be provided in which the holding member holding the circuit board can reliably be fixed to the unit cell and of which total cost can be reduced by saving of labor of assembly that is achieved by simplification of a structure for fixing the holding member to the unit cell.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 9, 2009
    Applicant: HITACHI MAXELL, LTD.
    Inventors: Hiroshi YAMAMOTO, Takashi Sumida, Osamu Akatsuchi
  • Publication number: 20090087734
    Abstract: Positive and negative terminals formed on a top face of a unit cell and positive and negative terminals formed on a surface of a circuit board opposed to the unit cell are electrically connected to each other by connectors. The connectors each include an elastic body formed from an elastic material, and a conductor which is placed so as to be exposed on upper and lower surfaces of the elastic body and which serves for electrically connecting those exposed portions to each other. By elastic restoring force of the elastic body generated by elastic compression of the elastic body between the terminals, the upper and lower surfaces of the connectors are put into press contact between the opposing positive and negative terminals of the unit cell and the circuit board, by which their electrical connection is maintained.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 2, 2009
    Inventors: Osamu AKATSUCHI, Hiroshi Yamamoto, Takashi Sumida