Inventor · disambiguated record
Kyuichiro Nagai
Also filed as: NAGAI KYUICHIRO
24 granted patents·1 pending application·155 citations·filing 1982–2006
95Inventor score
Technology areasG11B
Files withHITACHI LTD24
Top patents by PatentIndex Score
25 records- 0186US6665261B2Disk cartridgeHITACHI LTD·Filed 2001·Granted Dec 16, 2003·15 cites·10 claims
- 0282US7076791B2Optical pickup and optical disc apparatus provided with the sameHITACHI LTD·Filed 2002·Granted Jul 11, 2006·15 cites·8 claims
- 0381US6779194B2Disc cartridge for one-sided disc-shaped recordable mediumHITACHI LTD·Filed 2002·Granted Aug 17, 2004·15 cites·3 claims
- 0474US7379397B2Optical pickup and optical disc apparatus provided with the sameHITACHI LTD·Filed 2006·Granted May 27, 2008·2 cites·4 claims
- 0573US6577593B2Disk cartridgeHITACHI LTD·Filed 2001·Granted Jun 10, 2003·6 cites·3 claims
- 0670US6349087B1Disk cartridge with a disk holding memberHITACHI LTD·Filed 1999·Granted Feb 19, 2002·15 cites·1 claims
- 0769US5982719ADisc auto changer for recording or reproducing information on a desired disc of a plurality of discs in a magazineHITACHI LTD·Filed 1996·Granted Nov 9, 1999·23 cites·2 claims
- 0864US6847605B2Disk cartridgeHITACHI LTD·Filed 2001·Granted Jan 25, 2005·3 cites·4 claims
- 0961US6874157B2Disk caseHITACHI LTD·Filed 2002·Granted Mar 29, 2005·5 cites·4 claims
- 1061US6480464B2Disk cartridge with holder and disk informationHITACHI LTD·Filed 2001·Granted Nov 12, 2002·3 cites·6 claims
- 1161US4837646ATape guide apparatus for helically wound tapeHITACHI LTD·Filed 1988·Granted Jun 6, 1989·12 cites·11 claims
- 1258US6256288B1Disk apparatus and motor thereforHITACHI LTD·Filed 1998·Granted Jul 3, 2001·13 cites·11 claims
- 1357US6507560B2Disc cartridgeHITACHI LTD·Filed 2001·Granted Jan 14, 2003·2 cites·7 claims
- 1453US4583137ASignal-recording/reproducing apparatusHITACHI LTD·Filed 1982·Granted Apr 15, 1986·9 cites·8 claims
- 1552US6510132B2Disk cartridgeHITACHI LTD·Filed 2001·Granted Jan 21, 2003·1 cites·5 claims
- 1652US6449242B2Disk cartridgeHITACHI LTD·Filed 2001·Granted Sep 10, 2002·1 cites·11 claims
- 1750US6625108B2Disk cartridgeHITACHI LTD·Filed 2000·Granted Sep 23, 2003·1 cites·10 claims
- 1847US2004177367A1Disk cartridgeFiled 2004·Application pending·0 cites
- 1944US6463030B2Disc cartridgeHITACHI LTD·Filed 2001·Granted Oct 8, 2002·0 cites·8 claims
- 2043US6519220B2Disk device with eliminatable gapsHITACHI LTD·Filed 2001·Granted Feb 11, 2003·0 cites·2 claims
- 2140US6008963AMagnetic recording having a slidable chassisHITACHI LTD·Filed 1993·Granted Dec 28, 1999·4 cites·18 claims
- 2240US5862119ADisc inclining/disc inverting mechanism in a disc storage/playback apparatusHITACHI LTD·Filed 1996·Granted Jan 19, 1999·5 cites·2 claims
- 2335US6400678B1Disc cartridgeHITACHI LTD·Filed 1999·Granted Jun 4, 2002·2 cites·5 claims
- 2435US6285642B1Disk device with vibration-insulating mechanismHITACHI LTD·Filed 1998·Granted Sep 4, 2001·2 cites·1 claims
- 2533US6711119B1Disk cartridge with a holder having disk information on itHITACHI LTD·Filed 1999·Granted Mar 23, 2004·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →