Patents by Inventor Kouji Ikegami

Kouji Ikegami 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 jet printer and ink jet print head
    Patent number: 5975681
    Abstract: An ink jet printer which causes ink to fly to a recording medium to form an image, comprising: plural nozzles functioning as ink ejection ports; plural individual flow paths which are disposed with respectively corresponding to the nozzles, the individual flow paths respectively having driving elements which eject internal ink through the nozzles; a common liquid chamber which communicates with the individual flow paths, the common liquid chamber having an opening portion through which ink is supplied into the chamber; an ink supply path which has a sectional area smaller than a sectional area of the opening portion of the common liquid chamber, the ink supply path being connected to the opening portion to guide ink to the common liquid chamber; and an ink supply source for supplying ink through the ink supply path.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: November 2, 1999
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Fumihiko Ogasawara, Toshinobu Hamazaki, Masaki Kataoka, Ichiro Tomikawa, Naoki Morita, Katsuhide Ogawa, Mitsuhide Soga, Kouji Ikegami, Jun Isozaki, Harumi Tamura, Jun Takagi, Yoshihiko Fujimura