Patents by Inventor Mitsuhiro Soneda

Mitsuhiro Soneda 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: 6450623
    Abstract: The present invention has an object to provide an inkjet head and a method for manufacturing the inkjet head which not only protects a member at and/or near a surface onto which the nozzle plate is connected (nozzle connection surface), but also shortens the manufacturing time. A protective layer is provided between the nozzle plate and the piezo-electric element, enabling only the protective layer to be polished, protecting the piezo-electric element from being damaged by the polishing when the nozzle connection surface is formed. After the inkjet head is completed, the protective layer prevents ink leakage to the piezo-electric element.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: September 17, 2002
    Assignee: Fujitsu Limited
    Inventors: Mutsuo Watanabe, Masayuki Sasaki, Kouichi Sanpei, Mitsuhiro Soneda