Patents by Inventor Kiyoshi Chiba

Kiyoshi Chiba 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).

  • Method for forming images by differential oxidation
    Patent number: 3967285
    Abstract: When a file having coated thereon an electrically conductive coating which is transparent in a highly oxidized state and non-transparent in a lowly oxidized state or in a reduced state, such as a coating of indium oxide, is heated electrically or by laser beams or oxidized and/or reduced by electrolytic reaction, images consisting of transparent and non-transparent areas are formed on the film. This can be utilized, for example, in a facsimile system.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: June 29, 1976
    Assignee: Teijin Limited
    Inventors: Shigenobu Sobajima, Hiroshi Okaniwa, Kiyoshi Chiba, Norio Takagi