Patents by Inventor Shougo Uehara

Shougo Uehara 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).

  • Drum assembly having a lower fixed drum and an upper rotary drum with a particularly shaped outer surface
    Patent number: 5528438
    Abstract: A rotary bead-drum assembly for use in a video tape recorder that makes high-density recording. The assembly comprises a rotating top drum and a stationary bottom drum. Magnetic tape is helically wound on the outer surfaces of the two drums. A plurality of magnetic transducing heads are mounted to the top drum. An upward conical surface is formed on the top drum over the heads to make the elongation coefficient of the lateral extent of the tape uniform.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: June 18, 1996
    Assignee: Sony Corporation
    Inventors: Seiki Tanaka, Takashi Sasaya, Shougo Uehara