Inventor · disambiguated record
Shigehisa Hagura
Also filed as: HAGURA SHIGEHISA
11 granted patents·252 citations·filing 1988–2004
92Inventor score
Top patents by PatentIndex Score
11 records- 0195US6290360B1Liquid crystal projector, and projection lens unit, optical unit and cooling system for the sameHITACHI LTD·Filed 1998·Granted Sep 18, 2001·59 cites·8 claims
- 0289USD325857SScrew driverHITACHI KOKI KK·Filed 1989·Granted May 5, 1992·33 cites·1 claims
- 0386US6783245B2Liquid crystal projector, and projection lens unit, optical unit and cooling system for the sameHITACHI LTD·Filed 2001·Granted Aug 31, 2004·17 cites·4 claims
- 0485USD429270SLiquid crystal video projectorHITACHI LTD·Filed 1999·Granted Aug 8, 2000·26 cites·1 claims
- 0583USD343382SFrequency inverterHITACHI LTD·Filed 1992·Granted Jan 18, 1994·26 cites·1 claims
- 0678US6824273B2Liquid crystal projector, and projection lens unit, optical unit and cooling system for the sameHITACHI LTD·Filed 2003·Granted Nov 30, 2004·9 cites·6 claims
- 0778USD326043SElectric screw driverHITACHI KOKI KK·Filed 1989·Granted May 12, 1992·18 cites·1 claims
- 0877US5115179APortable teaching apparatusHITACHI LTD·Filed 1988·Granted May 19, 1992·24 cites·11 claims
- 0975USD436979SLiquid crystal video projectorHITACHI LTD·Filed 1999·Granted Jan 30, 2001·19 cites·1 claims
- 1074USD419581SLiquid crystal video projectorHITACHI LTD·Filed 1999·Granted Jan 25, 2000·16 cites·1 claims
- 1164US7152978B2Liquid crystal projector, and projection lens unit, optical unit and cooling system for the sameHITACHI LTD AND HITACHI VIDEO·Filed 2004·Granted Dec 26, 2006·5 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →