Patents by Inventor Kotaro Hatada

Kotaro Hatada 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: 4384772
    Abstract: A manual focusing camera provided with a focus detection means adapted to generate an output signal when the image of an object is sharply focused and a locking or arresting means responsive to the output signal from the focus detection means for pressing against the rear end face of the focusing ring of a photographic lens attached on the camera, thereby locking or arresting the further rotation of the focusing ring. Therefore, one can sense when the image is sharply focused. The focus detection means and locking or arresting means are very simple in construction and can be easily incorporated into the conventional cameras. Thus, positive and sharp focusing can be ensured.
    Type: Grant
    Filed: May 7, 1981
    Date of Patent: May 24, 1983
    Assignee: West Electric Co., Ltd.
    Inventors: Kotaro Hatada, Hiroshi Iwata, Tsunemi Yoshino
  • Patent number: 4270853
    Abstract: Instant-printing film further comprises a magnetic sound-recording band on one end part thereof, and is installed in an instant-printing camera which has a sweeping magnetic recording/reproducing head that sweeps touching and along the magnetic sound recording band, thereby enables recording of ambient sound of the photographic scenery, or reproducing of the recorded sound while seeing the instant-printed photography.
    Type: Grant
    Filed: March 21, 1979
    Date of Patent: June 2, 1981
    Assignee: West Electric Company, Ltd.
    Inventors: Kotaro Hatada, Masaru Higuchi, Hiroshi Iwata