Patents by Inventor Kazuaki Kakinuma

Kazuaki Kakinuma 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).

  • Output circuit for video tape recorder
    Patent number: 4213152
    Abstract: An output circuit for converting a video signal reproduced from a video signal reproducing apparatus such as a video tape recorder, to a signal in the form of an RF signal in terms of a television channel carrier and selectively producing one of two channel carriers, comprises a first filter for eliminating the lower sideband wave of the lower one of the two channels, a second filter connected in series with the first filter for eliminating the lower sideband wave of the higher one of the two channels, and a switch for activating the second filter only when the higher channel is selected to produce the higher channel signal.
    Type: Grant
    Filed: January 25, 1979
    Date of Patent: July 15, 1980
    Assignee: Hitachi, Ltd.
    Inventor: Kazuaki Kakinuma