Patents by Inventor Humio Hujisawa

Humio Hujisawa 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: D287368
    Type: Grant
    Filed: February 6, 1984
    Date of Patent: December 23, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Masato Shibayama, Takeshi Abe, Daijiro Ida, Masayuki Ohshiro, Ichiro Takahashi, Yasuhiro Hashimoto, Humio Hujisawa, Takeshi Araya