Patents by Inventor Masataka Oba

Masataka Oba 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).

  • Matrix display panel driver with charge collection circuit used to collect charge from the capacitive loads of the display
    Patent number: 5717437
    Abstract: A driver circuit applies data pulses to column electrodes of a display panel. The display panel includes a plurality of row electrodes formed in a plane in parallel to each other and a plurality of column electrodes formed to be isolated from the row electrodes, parallel to each other, and orthogonal to the row electrodes. To collect charge, a circuit to drive column electrodes is connected to charge collecting coils and capacitors. There is further employed an output circuit of an IC having a switch dedicated for charge collection.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: February 10, 1998
    Assignee: NEC Corporation
    Inventors: Yoshio Sano, Masataka Oba