HC

Hsieh Chang-Fa

AP Acer Peripherals: 2 patents #21 of 137Top 20%
BE Benq: 1 patents #254 of 580Top 45%
Overall (All Time): #1,619,338 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6489994 Method and device for protecting a cathode ray tube in an image displaying device by using a brightness control circuit 2002-12-03
6169587 Raster V-size adjustment circuit 2001-01-02
5744904 Apparatus for reducing magnetic field radiated from deflection yoke 1998-04-28