Patents by Inventor Ishio Kuge

Ishio Kuge 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).

  • Pigment inks for ink jet printers
    Patent number: 5707433
    Abstract: A pigmented ink for ink jet printer which comprises pigment particle as a colorant, water or a mixture of water and at least one hydrophilic organic solvent as a carrier medium and a derivative of polyoxyethylene ether sulphate or a derivative of polyoxyethylene ether phosphate as a dispersant. These inks give images having good print quality and excellent storage stability after many thermal cycles of -20.degree. C. to 80.degree. C.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: January 13, 1998
    Assignee: Fuji Pigment Co., Ltd.
    Inventors: Ishio Kuge, Shiro Mori, Estuo Ikemoto