Inventor · disambiguated record
Junzo Kumakura
Also filed as: KUMAKURA JUNZO
8 granted patents·102 citations·filing 1992–2005
86Inventor score
Technology areasG11B
Files withSONY CORP8
Top patents by PatentIndex Score
8 records- 0183US6430143B1Optical pickup device and optical disc recording and/or reproducing apparatusSONY CORP·Filed 2000·Granted Aug 6, 2002·26 cites·16 claims
- 0280US5384760ADisk changer player with stocker between loading/unloading position and reproducing unitSONY CORP·Filed 1993·Granted Jan 24, 1995·33 cites·9 claims
- 0369US7012868B2Adjustment optical disc for optical pick-up, adjustment method for optical pick-up, and adjustment apparatus for optical pick-upSONY CORP·Filed 2005·Granted Mar 14, 2006·1 cites·8 claims
- 0465US5301177ADevice for simultaneously loading two different kinds of recording mediaSONY CORP·Filed 1992·Granted Apr 5, 1994·17 cites·5 claims
- 0560US7006410B2Optical disk for adjusting optical pickup, method for adjusting optical pickup, and device for adjusting optical pickupSONY CORP·Filed 2000·Granted Feb 28, 2006·3 cites·34 claims
- 0654US7020059B2Adjustment optical disc for optical pick-up, adjustment method for optical pick-up, and adjustment apparatus for optical pick-upSONY CORP·Filed 2005·Granted Mar 28, 2006·0 cites·2 claims
- 0751US6396794B1Disc recording and/or reproducing devices with disc exchanging functionSONY CORP·Filed 1997·Granted May 28, 2002·11 cites·31 claims
- 0851US6118618ADisk cartridge loading device for recording and/or reproducing apparatusSONY CORP·Filed 1995·Granted Sep 12, 2000·11 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →