Patents by Inventor Akihiko Shimimura

Akihiko Shimimura 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: 7550252
    Abstract: A method for producing an ink-jet recording head having a discharge port configured to discharge ink, a passage-forming member configured to form an ink passage communicating with the discharge port, and a substrate provided with an energy-generating element configured to generate energy utilized for discharging ink includes the steps of forming a pattern for the passage on the substrate, the pattern being composed of a positive photosensitive resin that is insensitive to light having a wavelength of 300 nm to 470 nm, forming a coating resin layer to be the passage-forming member on the substrate having the pattern, exposing the coating resin layer to only light having a wavelength of 300 nm or more to form the discharge port, and removing the pattern to form the passage.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: June 23, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiko Shimimura, Tadayoshi Inamoto, Kazunari Ishizuka