Patents by Inventor Takehiko Ohi

Takehiko Ohi 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).

  • Light-transmitting recording material for electrophotography, and heat fixing method
    Patent number: 6037040
    Abstract: A light-transmitting recording material for electrophotography is disclosed which has a light-transmitting base material and a surface layer. The surface layer contains a thermoplastic resin and a release agent having a melting point of from 40.degree. C. to 120.degree. C. Also, a heat fixing method is provided in which a toner image is formed and heat-fixed on the above light-transmitting recording material.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: March 14, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takehiko Ohi, Naoki Kushida, Yomishi Toshida, Hiroyuki Ogino
  • Dry process silver salt photosensitive material and image forming method making use of this dry process silver salt photosensitive material
    Patent number: 5547831
    Abstract: A dry process silver salt photosensitive material has a support and provided thereon a photosensitive layer containing at least an organic silver salt, a reducing agent and a photosensitive silver halide or a photosensitive silver halide forming component. The photosensitive layer is incorporated with a compound selected from the compounds (i), (ii) and (iii).
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: August 20, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuro Fukui, Motokazu Kobayashi, Takehiko Ohi, Kazunori Ueno, Kenji Kagami, Masao Suzuki, Katsuya Nishino