Patents by Inventor Satoru Arata

Satoru Arata 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).

  • High-resistivity carbon black
    Patent number: 6372349
    Abstract: The present invention relates to a high-resistivity carbon black coated with a resin on the surface and having a volume resistivity of not less than 100 &OHgr;·cm.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: April 16, 2002
    Assignees: Mitsubishi Chemical Corporation, Mikuni Color Ltd.
    Inventors: Hideyuki Hisashi, Satoru Arata, Yuuichi Sekine
  • Ink compositions for ink jet printing
    Patent number: 5503664
    Abstract: An ink for ink jet printing comprising a pigment, a component selected from the group consisting of saccharides, derivatives thereof and polyols having 5 or more hydroxyl groups, and a resin emulsion. This pigment-type ink is excellent in preservability, does not cause obstruction in a nozzle, and can evenly produce an image.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: April 2, 1996
    Assignee: Seiko Epson Corporation
    Inventors: Yukari Sano, Junko Shimizu, Hiroko Hayashi, Kiyohiko Takemoto, Satoru Arata, Issei Kawabata
  • Waterbased ink composition for ink-jet printing
    Patent number: 5417747
    Abstract: A waterbased ink composition for ink-jet printing including a pigment, an aqueous medium and a monoterpene or sesquiterpene excellent in coloring property and water resistance, which does not stop up the nozzle nor feather, and by which the stable printed images can be continuously formed without any distortion.
    Type: Grant
    Filed: January 19, 1994
    Date of Patent: May 23, 1995
    Assignee: Mikuni Shikiso Kabushiki Kaisha
    Inventors: Satoru Arata, Issei Kawabata, Yoshihiko Uchioki
  • Ink compositions for ink jet printing
    Patent number: 5324349
    Abstract: An ink for ink jet printing comprising a pigment, a component selected from the group consisting of saccharides, derivatives thereof and polyols having 5 or more hydroxyl groups, and a resin emulsion. This pigment-type ink is excellent in preservability, does not cause obstruction in a nozzle, and can evenly produce an image.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: June 28, 1994
    Assignee: Seiko Epson Corporation
    Inventors: Yukari Sano, Junko Shimizu, Hiroko Hayashi, Kiyohiko Takemoto, Satoru Arata, Issei Kawabata