Patents by Inventor Toshinobu Nishizaki

Toshinobu Nishizaki 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).

  • Overcoated sheet
    Patent number: 4603079
    Abstract: The present invention provides an overcoated sheet which comprises forming, on at least one surface of a substrate, an overcoat layer consisting essentially of styrene/butylmethacrylate/unsaturated organic acid system copolymer, and is used as a transfer sheet for use in a plain-paper copier, a drafting film, a diazo second original film and the like.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: July 29, 1986
    Assignee: Ricoh Co., Ltd.
    Inventors: Toshinobu Nishizaki, Shuhei Shiraishi, Toshiyuki Osawa
  • Toner bottle
    Patent number: D356813
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: March 28, 1995
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Toshinobu Nishizaki
  • Toner bottle
    Patent number: D376614
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: December 17, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Toshinobu Nishizaki
  • Toner bottle
    Patent number: D389176
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: January 13, 1998
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideo Ichikawa, Toshinobu Nishizaki