Patents by Inventor Hironori Honda

Hironori Honda 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: 5281495
    Abstract: Disclosed is a rechargeable alkaline storage cell having a negative electrode, a positive electrode, and a separator disposed between the electrodes. The negative electrode has an active material layer and a conductive layer formed on the active layer, the active layer including cadmium active material, the conductive layer including polyvinylpyrrolidone as a binder and conductive powder.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: January 25, 1994
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Akira Hirakawa, Hironori Honda, Toshihiro Inoue, Yutaka Doi, Yoshiyuki Fujimoto, Toshiaki Shiojiri, Ryuuji Kawase
  • Patent number: 5208122
    Abstract: The present invention discloses an enclosed alkaline storage cell. The enclosed alkaline storage cell comprising a negative electrode made of materials including a main active material of cadmium oxide, a positive electrode, and a separator impregnated with an alkaline electrolytic solution and interposed therebetween, characterized in that the negative electrode has a product produced by cross linking reaction between high polymers having hydroxyl group and at least one of boric acid and boric acid salt inside and/or on the surface thereof.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: May 4, 1993
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Akira Hirakawa, Takahisa Awajitani, Hironori Honda
  • Patent number: 4988589
    Abstract: A paste-type cadmium electrode for use in an alkaline storage cell, comprising a conductive substrate, an active material layer mainly comprising cadmium oxide and formed on a surface of the conductive substrate, and a conductive layer or a nickel body formed on a surface of the active material layer.The conductive layer either has therein powdered carbon and powdered alkali-resistant metal having a surface area of 0.001 to 0.5 m.sup.2 against 1 g of the active material; comprises powdered carbon, a binder and powdered alkali-resistant metal having an apparent density of 0.2 g/cc or less; or comprises a first conductive layer formed on a surface of the active material layer and comprising powdered alkali-resistant metal and a binder, and a second conductive layer formed on a surface of the first conductive layer and comprising powdered carbon and a binder.The nickel body is dispersed on a surface of the active material layer, the nickel body comprising fiber-type nickel having an average fiber diameter of 1 .
    Type: Grant
    Filed: January 17, 1990
    Date of Patent: January 29, 1991
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takahisa Awajitani, Masayuki Terasaka, Masakazu Takemura, Hironori Honda
  • Patent number: 4983477
    Abstract: A cadmium non-sintered negative electrode for use in an alkaline storage cell comprising a main active material comprising at least one of powdered cadmium oxide and powdered cadmium hydroxide; a reserve charging substance comprising powdered metal cadmium; and an additive comprising powdered nickel hydroxide whose grain shape is substantially globe and/or whose average grain size is 1.5 to 200 .mu.m.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: January 8, 1991
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masakazu Takemura, Hironori Honda, Masayuki Terasaka
  • Patent number: 4844948
    Abstract: A method of manufacturing a nickel hydroxide electrode for use in an alkaline storage cell. The disclosed method comprises a first step of forming cobalt hydroxide on surfaces of a porous nickel sintered plaque, a second step of changing the cobalt hydroxide into cobalt oxyhydroxide, and a third step of carrying out an active material filling operation for the sintering plaque formed with the cobalt oxyhydroxide.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: July 4, 1989
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Shinsuke Nakahori, Hironori Honda