Patents by Inventor Akira Kashimura

Akira Kashimura 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).

  • Patent number: 6702432
    Abstract: An inkjet head 100 includes a pair of support plates 17A, 17B and a diaphragm plate 9 interposed between the support plates 17A, 17B. In this configuration, even when adhesion between the diaphragm plate 9 and the support plate 17B is insecure, and when a piezoelectric element 12 deforms a diaphragm 7 toward a pressure chamber 3, that is, in a direction away from the support plate 17B, the support plate 17A prevents the diaphragm plate 9 from peeling off the support plate 17B. Accordingly, the dimension and thus a deforming amount of the diaphragm 7 is maintained uniform, whereby a uniform ink ejection performance is maintained.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: March 9, 2004
    Assignee: Hitachi Printing Solutions, Ltd.
    Inventors: Hiroshi Takahagi, Nobuhiro Noto, Takashi Sato, Akira Kashimura, Kenji Yamada, Kenichi Kugai
  • Publication number: 20020171715
    Abstract: An inkjet head 100 includes a pair of support plates 17A, 17B and a diaphragm plate 9 interposed between the support plates 17A, 17B. In this configuration, even when adhesion between the diaphragm plate 9 and the support plate 17B is insecure, and when a piezoelectric element 12 deforms a diaphragm 7 toward a pressure chamber 3, that is, in a direction away from the support plate 17B, the support plate 17A prevents the diaphragm plate 9 from peeling off the support plate 17B. Accordingly, the dimension and thus a deforming amount of the diaphragm 7 is maintained uniform, whereby a uniform ink ejection performance is maintained.
    Type: Application
    Filed: May 8, 2002
    Publication date: November 21, 2002
    Inventors: Hiroshi Takahagi, Nobuhiro Noto, Takashi Sato, Akira Kashimura, Kenji Yamada, Kenichi Kugai
  • Patent number: 6007193
    Abstract: In the ink jet printer using hot melt ink, a heater is provided for overheating hot melt ink in the ink supply channel. The collector is provided for collecting air bubbles generated when the hot melt ink is overheated by the heater. The air bubbles, collected in the collector, are then expelled from the release valve. The hot melt ink is subsequently cooled before the ink enters the print head section, where the air is dissolved in the ink. The above-described air bubble-releasing and -dissolving processes are repeatedly performed as the ink is circulated due to the maintained difference in ink level between the ink supply chamber and the ink collecting chamber.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: December 28, 1999
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Akira Kashimura, Norimass Kondo