Patents by Inventor Ryusei Sasaki

Ryusei Sasaki 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).

  • Ink for ink-jet printer containing dichloromethane as an organic solvent and a basic dye as a coloring agent
    Patent number: 4248636
    Abstract: An ink for an ink-jet printer having a specific resistance of 1 k.OMEGA.-cm or less and comprising (1) as an organic solvent in a vehicle (a) dichloromethane or (b) a mixed solvent of dichloromethane and at least one member selected from halogenated lower alkanes except for dichloromethane and halogenated lower alkenes and (2) as a coloring agent (a) a basic dye or (b) a mixture of a basic dye and at least one selected from oil-soluble dyes and organic pigments can ink-jet print letters, symbols, etc. on a hydrophobic substrate.
    Type: Grant
    Filed: March 6, 1979
    Date of Patent: February 3, 1981
    Assignee: Hitachi, Ltd.
    Inventors: Ryusei Sasaki, Yasuki Mori, Hirosada Morishita