Patents by Inventor Masahiko Nonogaki

Masahiko Nonogaki 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).

  • Zoom lens assembly for photographic cameras
    Patent number: 4229074
    Abstract: A zoom lens assembly for photographic cameras, particularly for movie cameras, has a focussing ring, a zooming ring and a fixed-tube for supporting these rings as well as associated lenses. A locking device is provided for locking the focussing ring at the hyperfocal position and at the same time for restricting the zooming range to one in which a sharp image can be produced independently from the zooming operation with the focussing lens being set at the hyperfocal position.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: October 21, 1980
    Assignee: Elmo Company Limited
    Inventor: Masahiko Nonogaki
  • Zoom lens assembly with restrictable zooming range
    Patent number: 4162822
    Abstract: A zoom lens assembly for photographic cameras, particularly for movie cameras, has a focussing ring, a zooming ring and a fixed-tube for supporting these rings as well as associated lenses. A locking device is provided for locking the focussing ring at the hyperfocal position and at the same time for restricting the zooming range to one in which a sharp image can be produced independently from the zooming operation with the focussing lens being set at the hyperfocal position.
    Type: Grant
    Filed: March 30, 1977
    Date of Patent: July 31, 1979
    Assignee: Elmo Company Limited
    Inventor: Masahiko Nonogaki