Patents by Inventor Touhei Kawakami

Touhei Kawakami 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).

  • Information recording apparatus
    Patent number: 4000945
    Abstract: In an apparatus for electrographically recording information on a microfilm, a monitor light source is additionally provided to allow the checking of the recorded state while the film is held at the recording position, and an arrangement for the modification or addition of information is provided if necessary.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: January 4, 1977
    Assignee: Hitachi, Ltd.
    Inventors: Kunio Tajima, Touhei Kawakami, Seiichi Hayashi
  • Electrophotographic copying apparatus
    Patent number: 3989364
    Abstract: A sintered body obtained by sintering a mixture of lead monoxide, titanium dioxide, zirconium dioxide and lanthanum oxide under a certain condition, is used as transfer master. The transfer master is subjected to electric polarization in accordance with the original picture to be copied so that a plurality of electrophotographic copies are swiftly produced.
    Type: Grant
    Filed: February 18, 1975
    Date of Patent: November 2, 1976
    Assignee: Hitachi, Ltd.
    Inventors: Touhei Kawakami, Kunio Tajima, Seiichi Hayashi