Patents by Inventor Tadatoshi Ohtsu

Tadatoshi Ohtsu 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).

  • Heat-sensitive transferring medium of delayed sending type
    Patent number: 5043228
    Abstract: A heat-sensitive transferring medium of a delayed sending type comprises a heat-melting ink layer and an over-coating layer overlying said ink layer and mainly composed of resin and/or wax.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: August 27, 1991
    Assignee: General Company Limited
    Inventors: Takashi Yamahata, Tadatoshi Ohtsu
  • Heat-sensitive transferring medium of delayed sending type
    Patent number: 4948446
    Abstract: A heat-sensitive transferring medium of a delayed sending type comprises a heat-melting ink layer and an over-coating layer overlying said ink layer and mainly composed of resin and/or wax.
    Type: Grant
    Filed: December 24, 1986
    Date of Patent: August 14, 1990
    Assignee: General Company Limited
    Inventors: Takashi Yamahata, Tadatoshi Ohtsu
  • Heat-sensitive transferring recording medium
    Patent number: 4567113
    Abstract: A heat-sensitive transferring recording medium comprises a base film, a heat melting ink layer provided on the under surface of the base film and a conveyance improving layer composed of a material selected from fatty acids, fatty acid derivatives, fatty alcohols, alkali metal salts of mono- or di-alkyl phosphoric acid esters of 8-18 carbon atoms, polyester copolymers, and other phosphoric acid esters.
    Type: Grant
    Filed: September 6, 1984
    Date of Patent: January 28, 1986
    Assignee: General Company Limited
    Inventors: Tadatoshi Ohtsu, Takashi Yamahata