Patents by Inventor Toshiyuki Kudo

Toshiyuki Kudo 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).

  • Thermally improved photodetector having a roughened, recessed, raised or inclined light receiving surface
    Patent number: 4697074
    Abstract: A photodetector comprising a photocell assembly including a substrate and at least one photocell formed on the substrate and having a light receiving face. The photocell assembly is completely embedded in a transparent resin molded body which has a light receiving surface defined therein so as to permit an incoming light incident thereupon to travel direct to the light receiving face of the photocell. The light receiving surface is roughened, recessed, raised, or inclined.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: September 29, 1987
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Kazuo Ito, Toshiyuki Kudo, Ritsuo Hama
  • Keel-tipped stylus, and method and device for making keel-tipped stylus
    Patent number: 4450551
    Abstract: A keel-tipped stylus has a constricted terminal portion which is mounted on narrow shoulders which is in turn mounted on wide shoulders. The keel-tipped stylus is formed from a V-shaped stylus which engages into a spiral groove formed in an abrasive lapping disc. As the lapping disc rotates, the V-shaped stylus runs along the groove to lap the constricted terminal portion together with the narrow and wide shoulders.
    Type: Grant
    Filed: June 15, 1982
    Date of Patent: May 22, 1984
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Toshiyuki Kudo, Kazuo Itoh, Masafumi Kitamura
  • Pick-up assembly for video disc player
    Patent number: 4433409
    Abstract: A pick-up assembly for use in a video disc player comprises a stylus having one lengthwise surface provided with an electrode and secured to a stylus carrier with the electrode facing in a direction away from the carrier, and a generally strip-shaped fly lead having one end bent and connected physically and electrically to the electrode by the use of an electroconductive bonding agent, thereby minimizing the required length of the expensive stylus and rendering to decrease the noise of the pick-up assembly.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: February 21, 1984
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Mahito Tsuji, Toshiyuki Kudo, Kazuo Itoh
  • Stylus grinding device for video disc player
    Patent number: 3973361
    Abstract: A stylus grinding device for use in a video disc player comprises a rotary grinding disc adapted to be rotated at its center during a grinding operation subject to the pickup stylus. The stylus grinding device is designed such that the amount of the pickup stylus to be ground varies depending upon the duration of actual service performed by the pickup stylus to reproduce video information recorded on a flexible foil-type disc record.
    Type: Grant
    Filed: July 11, 1975
    Date of Patent: August 10, 1976
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masaru Yamano, Hironosuke Ikeda, Ichiro Takahara, Toshiyuki Kudo, Kazuo Ito, Makoto Yamada