Inventor · disambiguated record
Hirohisa Koizumi
Also filed as: KOIZUMI HIROHISA
2 granted patents·3 pending applications·3 citations·filing 2004–2007
41Inventor score
Top patents by PatentIndex Score
5 records- 0151US2008037408A1Optical disk deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Application pending·0 cites
- 0248US7506186B2Optical disc apparatus and disc apparatusPANASONIC CORP·Filed 2004·Granted Mar 17, 2009·3 cites·13 claims
- 0338US7334238B2Optical disc device having fixing parts for directly fixing a frame of the optical disk device to an electronic deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Feb 19, 2008·0 cites·59 claims
- 0433US2004246827A1Optical disk deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
- 0530US2005007897A1Optical disk deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →