Patents by Inventor Masahiko Ijuin

Masahiko Ijuin 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).

  • Image-forming apparatus
    Patent number: 6556797
    Abstract: An image-forming apparatus is disclosed in which, using a photosensitive member and a toner, an unfixed image of the toner is formed on a transfer medium and the unfixed image on the transfer medium is fixed by a heat-and-pressure fixing means. In the image-forming apparatus, a delivery guide member, which guides the delivery of the transfer medium and is placed close to the heat and pressure fixing means, has a value of triboelectric voltage not greater than 500 V as measured by the triboelectric voltage measuring method according to JIS L1094B.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: April 29, 2003
    Assignees: Canon Kabushiki Kaisha, Du Pont Kabushiki Kaisha
    Inventors: Makoto Nishigaki, Atsushi Sano, Masahiko Ijuin, Toshikazu Kobayashi