Patents by Inventor Kinmochi Togawa

Kinmochi Togawa 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).

  • Unitary honeycomb structure and method of making it
    Patent number: 3982981
    Abstract: A plurality of corrugated sheets are fixedly superimposed one on another so that the axes of the corrugations of one sheet are not parallel to those at adjacent sheets.
    Type: Grant
    Filed: December 6, 1973
    Date of Patent: September 28, 1976
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroshi Takao, Kinmochi Togawa, Kazuo Matoba
  • Oxygen sensor devoid of catalytic oxidation activity
    Patent number: 3941673
    Abstract: An electrode of an oxygen sensor of the concentration cell type is made of a material such as Au or a Pt/Pb/S mixture, which material is devoid of catalytic oxidizing effect on CO and HC in an engine exhaust gas, so that the EMF characteristics depend on actual O.sub.2 concentrations.
    Type: Grant
    Filed: August 5, 1974
    Date of Patent: March 2, 1976
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Hiroshi Takao, Kinmochi Togawa, Kazuo Matoba, Yoshitaka Hata
  • Oxygen sensor coated with catalytic material
    Patent number: 3935089
    Abstract: One of the Pt electrodes of a concentration cell comprising a solid oxygen-ion electrolyte is coated with a porous inorganic material such as .gamma.-type Al.sub.2 O.sub.3 impregnated with an oxidation catalyst such as Pt so that oxidation reactions in a mixed gas to be measured may attain equilibrium before the gas comes into contact with the cell.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: January 27, 1976
    Assignee: Nissan Motor Company Limited
    Inventors: Kinmochi Togawa, Kazuo Matoba, Hiroshi Takao, Yoshitaka Hata