Patents by Inventor Michio Watabe

Michio Watabe 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).

  • Air cell with gas diffusion electrode
    Patent number: 5306578
    Abstract: An air cell comprising a cell container, a gas diffusion electrode which uses oxygen as an active material, and an air-inlet opening for communication with air outside the container. A porous film is provided to support the gas diffusion electrode, and an air-diffusing porous sheet impregnated with film-forming silicone is provided between the porous film and the air-inlet opening.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: April 26, 1994
    Assignees: Toshiba Battery Co., Ltd., Toshiba Silicone Co., Ltd.
    Inventors: Masato Ohashi, Michio Watabe, Hitoshi Takagishi, Masao Ide, Keiji Kobayashi
  • Air cell
    Patent number: 4380576
    Abstract: An air cell of the invention has an air cathode, one surface of which is in contact with an electrolyte and the other surface of which is in contact with air. The air cathode has current collecting grids, a carbon powder, a binder and a metal chelate. The current collecting grids are located at the center of the air cathode. The concentration of the binder in an area of the air cathode which is in contact with the electrolyte beyond the current collecting grids is lower than the concentration of the binder in an area of the air cathode which is in contact with the air.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: April 19, 1983
    Assignee: Toshiba Battery Co., Ltd.
    Inventors: Kazumasa Yoshida, Michio Watabe