Patents by Inventor Masanori Ohtawa

Masanori Ohtawa 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: 4613967
    Abstract: An apparatus for reproducing information signals recorded in spiral or coaxial tracks of a record disc includes a pick-up device operative, upon scanning of a track of the disc while the latter is rotated, to reproduce the information signals recorded in the scanned track; a driver for rotating the record disc relative to the pick-up device; a tracking device for controlling the tracing of the tracks by the pick-up device; a transporting device for bodily moving the pick-up device in a radial direction in respect to the axis of rotation of the record disc and thereby normally determining the tracks to be scanned by the pick-up device; and a controller selectively operative for causing the pick-up device to intermittently trace nonadjacent groups of tracks so as to intermittently reproduce the information signal recorded in the nonadjacent groups of tracks, respectively.
    Type: Grant
    Filed: April 27, 1982
    Date of Patent: September 23, 1986
    Assignee: Sony Corporation
    Inventors: Yuichiro Hamada, Kazuhiko Fujiie, Masanori Ohtawa, Chiaki Nonaka, Tadao Yoshida, Yoshiaki Haneda