Inventor · disambiguated record
Hirokatsu Nagatake
Also filed as: NAGATAKE HIROKATSU
5 granted patents·2 pending applications·67 citations·filing 2000–2005
77Inventor score
Technology areasG11B
Files withPIONEER CORP7
Top patents by PatentIndex Score
7 records- 0190US6480456B1Optical pickup apparatus for reading different types of recording media at different reading wavelengthsPIONEER CORP·Filed 2000·Granted Nov 12, 2002·36 cites·11 claims
- 0284US6452880B1Optical pickup apparatusPIONEER CORP·Filed 2000·Granted Sep 17, 2002·21 cites·11 claims
- 0374US6429981B2Optical pickup apparatusPIONEER CORP·Filed 2001·Granted Aug 6, 2002·10 cites·5 claims
- 0440US2008101201A1Optical Pickup DevicePIONEER CORP·Filed 2005·Application pending·0 cites
- 0539US6912234B2Optical pickup apparatus and laser diode chipPIONEER CORP·Filed 2001·Granted Jun 28, 2005·0 cites·5 claims
- 0639US2005185565A1Optical pickup devicePIONEER CORP·Filed 2005·Application pending·0 cites
- 0736US7149174B2Optical pickupPIONEER CORP·Filed 2002·Granted Dec 12, 2006·0 cites·24 claims
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