Patents by Inventor Sigeki Tsuji

Sigeki Tsuji 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).

  • Automatic record player
    Patent number: 4230323
    Abstract: A nonrecorded section detection sensor is driven to scan a disc surface to determine addresses of each nonrecorded portions provided between two adjacent tracks. A selection keyboard is provided for selecting a desired track or desired tracks to be played. A random access memory stores the addresses of the beginning portion and the ending portion of the selected track. A control means functions to locate a pickup cartridge at the address of the beginning portion of the selected track to perform the play operation. When the play operation is conducted to the address of the ending portion of the selected track, the pickup cartridge is driven to travel upward to terminate the play operation.
    Type: Grant
    Filed: September 26, 1978
    Date of Patent: October 28, 1980
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Sigeki Tsuji, Hiromichi Shiozaki, Eiji Yamasaki