Patents by Inventor Masato Ootsuka

Masato Ootsuka 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).

  • Lid including rib adjacent safety valve for a battery case
    Patent number: 10505165
    Abstract: In a lid for a battery case where an annular thin portion is formed integrally with a lid main body by coining, a pair of ribs formed integrally with the lid main body so as to bulge from the lid main body and extending in a short direction of the lid main body are disposed on both sides of the annular thin portion in a long direction of the lid main body.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 10, 2019
    Assignee: NIPPON STEEL NISSHIN CO., LTD.
    Inventor: Masato Ootsuka
  • Lid for battery case with a safety valve
    Patent number: 10008703
    Abstract: In a configuration where an annular thin portion 50 is formed integrally with a lid main body 4 by coining, a bulging portion 6 is formed integrally with the lid main body 4 so as to bulge out from the lid main body 4, and the annular thin portion 50 is provided in a flat portion 61 of the bulging portion 6.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: June 26, 2018
    Assignee: NISSHIN STEEL CO., LTD.
    Inventor: Masato Ootsuka
  • LID INCLUDING RIB ADJACENT SAFETY VALVE FOR A BATTERY CASE
    Publication number: 20170179451
    Abstract: In a lid for a battery case where an annular thin portion is formed integrally with a lid main body by coining, a pair of ribs formed integrally with the lid main body so as to bulge from the lid main body and extending in a short direction of the lid main body are disposed on both sides of the annular thin portion in a long direction of the lid main body.
    Type: Application
    Filed: March 7, 2017
    Publication date: June 22, 2017
    Inventor: Masato Ootsuka
  • Lid including rib adjacent safety valve for a battery case
    Patent number: 9627667
    Abstract: In a lid for a battery case where an annular thin portion is formed integrally with a lid main body by coining, a pair of ribs formed integrally with the lid main body so as to bulge from the lid main body and extending in a short direction of the lid main body are disposed on both sides of the annular thin portion in a long direction of the lid main body.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: April 18, 2017
    Assignee: NISSHIN STEEL CO., LTD.
    Inventor: Masato Ootsuka
  • Method and apparatus for manufacturing a battery safety valve, a battery safety valve, and method for manufacturing a battery case lid
    Patent number: 9508968
    Abstract: In a method for manufacturing a battery safety valve according to the present invention, a stainless steel metal sheet is used, and an thin annular portion constituting an edge portion of a safety valve is formed in a lid by simultaneously pressing annular projecting portions provided respectively on a punch and a die so as to oppose each other, against respective surfaces of the lid.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: November 29, 2016
    Assignee: NISSHIN STEEL CO., LTD.
    Inventors: Masato Ootsuka, Shigeru Morikawa
  • LID FOR BATTERY CASE
    Publication number: 20150311488
    Abstract: In a configuration where an annular thin portion 50 is formed integrally with a lid main body 4 by coining, a bulging portion 6 is formed integrally with the lid main body 4 so as to bulge out from the lid main body 4, and the annular thin portion 50 is provided in a flat portion 61 of the bulging portion 6.
    Type: Application
    Filed: March 11, 2013
    Publication date: October 29, 2015
    Applicant: NISSHIN STEEL CO., LTD.
    Inventor: Masato OOTSUKA
  • LID FOR A BATTERY CASE
    Publication number: 20140220395
    Abstract: In a lid for a battery case where an annular thin portion is formed integrally with a lid main body by coining, a pair of ribs formed integrally with the lid main body so as to bulge from the lid main body and extending in a short direction of the lid main body are disposed on both sides of the annular thin portion in a long direction of the lid main body.
    Type: Application
    Filed: August 3, 2012
    Publication date: August 7, 2014
    Inventor: Masato Ootsuka
  • METHOD AND APPARATUS FOR MANUFACTURING A BATTERY SAFETY VALVE, A BATTERY SAFETY VALVE, AND METHOD FOR MANUFACTURING A BATTERY CASE LID
    Publication number: 20140017524
    Abstract: In a method for manufacturing a battery safety valve according to the present invention, a stainless steel metal sheet is used, and an thin annular portion constituting an edge portion of a safety valve is formed in a lid by simultaneously pressing annular projecting portions provided respectively on a punch and a die so as to oppose each other, against respective surfaces of the lid.
    Type: Application
    Filed: March 13, 2012
    Publication date: January 16, 2014
    Inventors: Masato Ootsuka, Shigeru Morikawa