Patents by Inventor Katsunori Oka

Katsunori Oka 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).

  • Tape crease inspecting method and apparatus having a stripe shaped pattern reflection plate
    Patent number: 5130555
    Abstract: A projector and a reflection plate with stripe shaped patterns printed on it are used for projecting the reflection light of the stripe shaped pattern onto a tape. An inspection apparatus for inspecting the crease condition of the tape by analyzing the pitch of the stripe shaped pattern projected onto the tape on a plurality of inspection lines is provided so that the change condition of delicate creases may be detected in a short time.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: July 14, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Noriyuki Suzuki, Yoshikazu Okahashi, Hirofumi Fujiwara, Katsunori Oka
  • Battery arrangement for small watercraft
    Patent number: 5097789
    Abstract: A battery arrangement in a smaller watercraft is provided wherein the battery is positioned in a compartment located immediately under the seat which is detachably affixed to the hull of the watercraft for affording easy access to the battery for servicing, particularly by a rider of the watercraft. The compartment is preferably watertight and has a top cover which may be detached to obtain direct access to the battery, after the seat is detached.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: March 24, 1992
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Katsunori Oka
  • Seat latch for watercraft
    Patent number: 5048450
    Abstract: A small watercraft having a detachable seat that is affixed to the hull by a latching mechanism that is positioned at the rear of the seat and which is operated by an operator accessible at the side of the seat and by a rider seated on the seat when he is positioned thereon.
    Type: Grant
    Filed: December 13, 1989
    Date of Patent: September 17, 1991
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Katsunori Oka