Patents by Inventor Hirokazu Moriyama

Hirokazu Moriyama 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).

  • Surface treated steel sheet for battery containers, a battery container, and a battery produced thereof
    Patent number: 6136107
    Abstract: A steel sheet for a battery container is covered with nickel-tin alloy layer on one side to be the inner side of the battery container which is formed by drawing the steel sheet. A battery using the steel sheet is manufactured by firstly filling positive electrode mix consisting of manganese oxide, graphite and potassium hydroxide and secondly filling negative electrode active material consisting of zinc and potassium hydroxide in the battery container.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: October 24, 2000
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Hitoshi Ohmura, Hirokazu Moriyama, Tatsuo Tomomori, Satoshi Iketaka
  • Surface treated steel sheet for battery containers, a battery container, and a battery produced thereof
    Patent number: 5993994
    Abstract: Surface treated steel sheets for battery containers according to the present invention are composed of two surfaces, one of which is to be used as an inner surface of a battery container and the other as an outer surface of a battery container. On the inner surface, between the topmost nickel-tin alloy layer and the base steel sheet are formed intermediate layer(s) of nickel-iron, or nickel and nickel-iron, or nickel-tin-iron and nickel-iron. The present invention also relates to battery containers and batteries made from these surface treated steel sheets.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: November 30, 1999
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Hitoshi Ohmura, Hirokazu Moriyama, Tatsuo Tomomori, Satoshi Iketaka
  • Coated metal sheet for battery containers, battery containers and batteries produced thereof
    Patent number: 5968682
    Abstract: A coated metal sheet for use in a battery container is made up of a metal sheet, one side of which is coated with a coating that includes a resin having rubber elasticity, a plasticizer, a crosslinking agent, and a conductive powder. A battery container or battery is produced from such a coated metal sheet.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: October 19, 1999
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Hirokazu Moriyama, Hironao Okayama, Hidenori Inai, Hitoshi Ohmura, Akio Miyaji
  • Coated metal sheet for battery containers, battery containers and batteries produced thereof
    Patent number: 5792553
    Abstract: A coated metal sheet for use in a battery container is made up of a metal sheet, one side of which is coated with a coating that includes a resin having rubber elasticity, a plasticizer, a crosslinking agent, and a conductive powder. A battery container or battery is produced from such a coated metal sheet.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 11, 1998
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Hirokazu Moriyama, Hironao Okayama, Hidenori Inai, Hitoshi Ohmura, Akio Miyaji
  • Method for producing a thin tin and nickel plated steel sheet for welded can material
    Patent number: 4601957
    Abstract: A method for producing a thin tin and nickel plated steel sheet having a surface structure in which the distribution of numerous nodules of metallic tin are observed by using an electron microscope on an iron-tin-nickel alloy layer formed on a steel sheet which comprises electroplating nickel on the steel sheet which is anodically treated in an alkaline electrolyte with a pH of above 10 followed by electrotinplating the nickel plated steel sheet, reflowing, quenching, and then chromate treating the tin and nickel plated steel sheet.This tin and nickel plated steel sheet is suitable for welded can materials since it is excellent in corrosion resistance after lacquering and weldability.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: July 22, 1986
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Terunori Fujimoto, Yasuhiko Nakagawa, Toshio Baba, Hirokazu Moriyama, Akio Miyachi, Tsuneo Inui