Patents by Inventor Takeo Komai

Takeo Komai 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).

  • Film rewind device in a camera
    Patent number: 4318603
    Abstract: A film rewind device in a camera in which a rewind coupling is automatically engaged with a cassette shaft in response to rewind operation has a rotatable member having a spiral groove on its peripheral wall portion and said rewind coupling at the end of the shaft thereof, the rotatable member being slidable in axial direction and rotatable by rewind operation, and a meshing member meshing with the spiral groove at the initial stage of the rewind operation to thereby slide the rotatable member in axial direction to cause the coupling to engage the cassette shaft. The mesh engagement between the meshing member and the spiral groove is released in axial direction when the coupling engages the cassette shaft, so that the meshing member comes to support the rotatable member so as to block the return of the rotatable member in axial direction.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: March 9, 1982
    Assignee: Nippon Kogaku K.K.
    Inventors: Koichi Daitoku, Hatsuo Sakamoto, Nobuhiko Terui, Toshiaki Hozumi, Yoshio Sekine, Yukio Hyodo, Masanori Ichikawa, Masamichi Wada, Tsuyoshi Kudo, Manabu Nakamura, Nobuaki Nakanishi, Takeo Komai, Yoshio Matsuzawa