Patents by Inventor Shuichi Yamashita

Shuichi Yamashita 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: 5008552
    Abstract: Data can be recorded onto an optical card (102; 200; 601; 800) on which a plurality of tracks are parallelly arranged and can be reproduced therefrom. The optical card is supported by card supporting means (101; 501). This card supporting means is reciprocated in a first direction by card drive means (109; 511). An optical head (103; 503; 603) is provided above the optical card to selectively provide access to tracks by a light beam. This optical head is reciprocated in a second direction perpendicular to the first direction by head drive means (108; 507). The reciprocating motion of the card supporting means is accelerated and decelerated when the optical head scans on guide sections (G) provided on both the sides of the optical card. Error correcting codes are added to data recorded onto the optical card. Thus, error correction is made by an error correction circuit (136). Motors of respective drive means are enclosed with vibration proof metal (321, 323) and vibration proof rubber (322).
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: April 16, 1991
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Wataru Kuramochi, Yoshiaki Tsuruoka, Norikazu Saitou, Akira Shibuya, Shuichi Yamashita
  • Patent number: D406798
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: March 16, 1999
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Bruno Sacco, Harald Leschke, Olivier Boulay, Shuichi Yamashita, Anthony Lo
  • Patent number: D406911
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: March 16, 1999
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Bruno Sacco, Harald Leschke, Olivier Boulay, Shuichi Yamashita, Anthony Lo, Wolfgang Muller, Anton Reichel, Werner Heinz
  • Patent number: D406912
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: March 16, 1999
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Bruno Sacco, Harald Leschke, Olivier Boulay, Shuichi Yamashita, Anthony Lo, Wolfgang Muller, Anton Reichel, Werner Heinz
  • Patent number: D411691
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: June 29, 1999
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Bruno Sacco, Harald Leschke, Olivier Boulay, Shuichi Yamashita, Anthony Lo