Patents by Inventor Kyouko Fukushima

Kyouko Fukushima 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).

  • Apparatus employing ink for ink-jet recording
    Patent number: 5329305
    Abstract: An apparatus employing an ink for ink jet recording that includes: a recording agent; a liquid carrier medium; and an alkylether of polyoxyethylene-polyoxypropylene random polymer having the following general formula [I]:R.sub.1 --(X)--O--R.sub.2 [I]wherein R.sub.1 and R.sub.2 each is a hydrogen atom or an alkyl group, with the proviso that they cannot both be a hydrogen atom, and X is a random polymer of ethylene oxide and polypropylene oxide.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: July 12, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyouko Fukushima, Koromo Shirota, Shouji Koike
  • Ink, ink jet recording method employing the same, and apparatus or tool employing the same
    Patent number: 5151128
    Abstract: An ink includes: a recording agent; a liquid carrier medium; and an alkylether of polyoxyethylene-polyoxypropylene random polymer having the following general formula [I]:R.sub.1 --(X)--O--R.sub.2 [I]wherein R.sub.1 and R.sub.2 each is a hydrogen atom or an alkyl group, with the proviso that they cannot both be a hydrogen atom, and X is a random polymer of ethylene oxide and polypropylene oxide.
    Type: Grant
    Filed: March 7, 1991
    Date of Patent: September 29, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyouko Fukushima, Koromo Shirota, Shouji Koike