Patents by Inventor Yazuru Ishida

Yazuru Ishida 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).

  • Publication number: 20120164337
    Abstract: To provide a print head that simplifies the manufacture process of a print head and reduces the manufacturing cost while preventing the peeling-off between a substrate and a flow passage forming member in the print head, and a method of manufacturing the print head. In the print head of the present invention, a protective layer is formed in a flow passage forming member side portion in a heat generating portion 2. The protective layer 20 contains a noble metal. Then, in the flow passage forming member side portion in the protective layer 20, the surface thereof is made of an oxide of a noble metal except in a portion corresponding to the heat generating portion 2, while in the portion corresponding to the heat generating portion 2 on the flow passage forming member side in the protective layer 20, the surface thereof is made of the noble metal.
    Type: Application
    Filed: March 6, 2012
    Publication date: June 28, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Yazuru Ishida, Takahiro Matsui, Ichiro Saito