Patents by Inventor Tomohiko Wagatsuma

Tomohiko Wagatsuma 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).

  • Method and apparatus for transferring signal to circuit without waveform distortion
    Patent number: 6088271
    Abstract: In a transfer circuit of a circuit device, a buffer circuit receives a signal in an active state to transfer to a circuit. Also, a waveform shaping circuit receives the signal in an active state to waveform-shape the received signal and transfers the waveform-shaped signal to the circuit. A selecting circuit selectively sets one of the buffer circuit and the waveform shaping circuit to the active state.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: July 11, 2000
    Assignee: NEC Corporation
    Inventor: Tomohiko Wagatsuma