Inventor · disambiguated record
Hajime Sumiyoshi
Also filed as: SUMIYOSHI HAJIME
9 granted patents·82 citations·filing 1985–2002
88Inventor score
Files withTOSHIBA KK9
Top patents by PatentIndex Score
9 records- 0170US6529247B2Automatic white balance adjusting circuit in color image displayTOSHIBA KK·Filed 2002·Granted Mar 4, 2003·10 cites·9 claims
- 0251US6437833B1Automatic white balance adjusting circuit in color image displayTOSHIBA KK·Filed 1999·Granted Aug 20, 2002·15 cites·12 claims
- 0351US5072298AAuto-tuning circuit for an active filter used in video signal processingTOSHIBA KK·Filed 1990·Granted Dec 10, 1991·16 cites·21 claims
- 0442US4882624ASynchronizing signal separation circuit for a television receiverTOSHIBA KK·Filed 1988·Granted Nov 21, 1989·7 cites·9 claims
- 0540US5596374ATelevision receiver that controls display contrast based on the type of videos being displayedTOSHIBA KK·Filed 1995·Granted Jan 21, 1997·11 cites·4 claims
- 0639US5760839AHorizontal synchronizing apparatusTOSHIBA KK·Filed 1996·Granted Jun 2, 1998·8 cites·13 claims
- 0738US6201426B1Pulse generation device having integrating circuit having substantially constant charging/discharging ratioTOSHIBA KK·Filed 1999·Granted Mar 13, 2001·7 cites·20 claims
- 0836US5140421AVideo signal processing pulse producing circuitTOSHIBA KK·Filed 1990·Granted Aug 18, 1992·5 cites·7 claims
- 0932US4647970ASync signal reproducing circuit in television receiversTOSHIBA KK·Filed 1985·Granted Mar 3, 1987·3 cites·2 claims
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