Patents by Inventor Masamichi Ippommatsu

Masamichi Ippommatsu 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).

  • Gas sensor and method for production thereof
    Patent number: 4935289
    Abstract: Disclosed is a gas sensor comprises a ceramic substrate, heaters formed on the surface of the substrate, an insulating layer formed as superposed on the heaters, electrodes formed on the surface of the insulating layer and a catalyst layer made of a gas detecting substance and formed as superposed on electrodes, and further disclosed is a method for the production of a gas sensor comprises the steps of forming a substrate of a ceramic substance, forming heaters on the surface of the substrate, forming an insulating layer for the substrate as superposed on the heaters, forming an electrode parts on the surface of the insulating layer and forming a catalyst layer made of a gas-detecting substance and superposed on the electrodes.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: June 19, 1990
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshimi Kikuchi, Masamichi Ippommatsu, Harutoshi Egami, Eikichi Ichimori, Tadashi Sakai
  • Gas sensor and method of manufacturing the same
    Patent number: 4897628
    Abstract: A gas sensor using an n-type metal oxide semiconductor and a method for manufacturing such a gas sensor is provided. More particularly, a gas sensor for detecting an inflammable gas and a method for manufacturing the same.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: January 30, 1990
    Assignees: Osaka Gas Co., Ltd., Kabushiki Kaisha Toshiba
    Inventors: Masamichi Ippommatsu, Takeshi Matsumoto, Shingo Yakushizi, Katsuyuki Kuroki, Takashi Matsuzaka