Patents by Inventor Masaktaka Ii

Masaktaka Ii 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).

  • Photodensitometer for measuring optical fringe patterns
    Patent number: 3967903
    Abstract: A non-storage type image pick-up tube line scans a sample for picking up the fringes. A circuit responds to the maximum and minimum values of the output from the image pick-up tube generating a signal corresponding to the brightness of the fringes, signals corresponding to the positions of the bright and/or dark spots of the fringes, and signals corresponding to the spacings between a reference point and the positions of the bright and/or dark spots of the fringes.
    Type: Grant
    Filed: November 18, 1974
    Date of Patent: July 6, 1976
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Toyoichiro Enami, Kazuo Kurasawa, Masaktaka Ii, Masaru Hashimoto