Patents by Inventor Syunichi Watanabe

Syunichi Watanabe 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: 6382777
    Abstract: A liquid jet recording head includes a substrate member provided with discharge energy generating elements for generating ink discharge energy corresponding to a plurality of ink flow paths, a plurality of grooves corresponding to the plurality of ink flow paths, an orifice plate provided with ink discharge ports for discharging ink each communicated with each one end of the grooves, an ink liquid chamber communicated with each of the grooves at the other end thereof for supplying ink to each of the grooves, and an ink supply port for supplying ink to the ink liquid chamber. Then, a ceiling plate member, which is formed integrally with the grooves, the orifice plate, the ink liquid chamber, and the ink supply port, and the substrate member are bonded to form a plurality of ink discharge paths.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: May 7, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yukuo Yamaguchi, Keizou Naganuma, Syunichi Watanabe
  • Publication number: 20020044176
    Abstract: A liquid jet recording head comprises a substrate member provided with discharge energy generating elements for generating ink discharge energy corresponding to a plurality of ink flow paths, a plurality of grooves corresponding to the plurality of ink flow paths, an orifice plate provided with ink discharge ports for discharging ink each communicated with each one end of the grooves, an ink liquid chamber communicated with each of the grooves at the other end thereof for supplying ink to each of the grooves, and an ink supply port for supplying ink to the ink liquid chamber. Then, a ceiling plate member, which is formed integrated with the grooves, the orifice plate, the ink liquid chamber, and the ink supply port, and the substrate member are bonded to form a plurality of ink discharge paths.
    Type: Application
    Filed: June 17, 1999
    Publication date: April 18, 2002
    Inventors: YUKUO YAMAGUCHI, KEIZOU NAGANUMA, SYUNICHI WATANABE