Patents by Inventor Kaichi Tsuchiya

Kaichi Tsuchiya 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).

  • Receiving sheet
    Patent number: 4148968
    Abstract: An electrophotographic method comprises developing an electric latent image formed on a photosensitive member comprising a photoconductive material and containing a first color forming agent in a surface for forming a visible image with a charged toner particle containing a second color forming agent, and heating to cause a thermal color forming reaction therebetween resulting in formation of a colored fixed image on the photosensitive member and a receiving sheet comprising a color forming agent (B) and a material having a melting point from 40.degree. to 130.degree. C.
    Type: Grant
    Filed: March 20, 1975
    Date of Patent: April 10, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichiro Nagashima, Kaichi Tsuchiya, Yoshihiro Sakamoto, Hiroshi Yamakami, Seiji Tomari
  • Process for fixing a toner image
    Patent number: 4148937
    Abstract: A process for fixing a toner image formed on a support by means of a heat roller according to the present invention comprises fixing the toner image developed by using a toner containing as the binder resin a styrene-butadiene copolymer containing 70 to 95 mole % of styrene.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: April 10, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hisashi Kurachi, Yoshihiro Sakamoto, Kaichi Tsuchiya, Hiroshi Yamakami, Tatsuo Miyamae, Seiji Tomari
  • Toner for developing electrostatic latent images comprising resin binder of polyester and solid silicone varnish
    Patent number: 4142982
    Abstract: A toner for developing electrostatic latent images contains a resin binder mainly composed of a polyester resin having a softening point of 80-150.degree. C. according to the Ring and Ball method and a solid silicone varnish having a molecular weight of 500-2000.
    Type: Grant
    Filed: May 26, 1976
    Date of Patent: March 6, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Yamakami, Yasuo Mitsuhashi, Seiji Tomari, Kaichi Tsuchiya
  • Toner image receiving sheet with color forming agents
    Patent number: 4054712
    Abstract: An electrophotographic method comprises developing an electric latent image formed on a photosensitive member comprising a photoconductive material and containing a first color forming agent in a surface for forming a visible image with a charged toner particle containing a second color forming agent, and heating to cause a thermal color forming reaction therebetween resulting in formation of a colored fixed image on the photosensitive member.
    Type: Grant
    Filed: March 20, 1975
    Date of Patent: October 18, 1977
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinichiro Nagashima, Kaichi Tsuchiya, Yoshihiro Sakamoto, Hiroshi Yamakami, Seiji Tomari
  • Color toner for electrophotography
    Patent number: 3998747
    Abstract: A negatively charged color toner for electrophotography composed of a polyester resin obtained by the reaction of polyol and dicarboxylic acid components and an organic pigment.
    Type: Grant
    Filed: September 26, 1974
    Date of Patent: December 21, 1976
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Yamakami, Kaichi Tsuchiya, Seizi Tomari
  • Organic photoconductive toner materials
    Patent number: 3933664
    Abstract: A light-transparent photoconductive material for use in electrophotography is the reaction product obtained by condensingA. an organic photoconductive compound containing an amino and/or hydroxyl group andB. a reactive colored compound containing an active halogen atom;Or by condensingA. an organic photoconductive compound containing an active halogen atom andB. a reactive colored compound containing an amino and/or hydroxyl group.
    Type: Grant
    Filed: November 6, 1974
    Date of Patent: January 20, 1976
    Assignee: Canon Inc.
    Inventors: Shinichiro Nagashima, Kaichi Tsuchiya