Patents by Inventor Fumiaki Munakata

Fumiaki Munakata 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).

  • Spherometer
    Patent number: 5131159
    Abstract: A spherometer for measuring the radius of curvature of 1 lens is disclosed. The spherometer comprises a spherometer ring having an annular portion or a part of an annular portion, a measuring member coaxially secured to the spherometer ring, a supporting member for supporting the spherometer ring, and a tilt facilitating member interposed between the spherometer ring and the ring supporting member.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: July 21, 1992
    Assignee: Olympus Optical Company Limited
    Inventors: Mitsuaki Takahashi, Masaki Watanabe, Fumiaki Munakata