Inventor · disambiguated record
Nobuyoshi Tsuboi
Also filed as: TSUBOI NOBUYOSHI
22 granted patents·737 citations·filing 1982–1998
97Inventor score
Files withHITACHI LTD22
Top patents by PatentIndex Score
22 records- 0193US4775967ABeam spot control device using a thin micro lens with an actuatorHITACHI LTD·Filed 1985·Granted Oct 4, 1988·55 cites·23 claims
- 0291US5055731AHigh-speed two-dimensional electrostatic actuatorHITACHI LTD·Filed 1990·Granted Oct 8, 1991·70 cites·10 claims
- 0391US4773060AOptical information recording deviceHITACHI LTD·Filed 1985·Granted Sep 20, 1988·44 cites·16 claims
- 0490US5101096AOptical recording sheet and method and apparatus for reproducing the sameHITACHI LTD·Filed 1989·Granted Mar 31, 1992·99 cites·2 claims
- 0590US4978187AOptical element, optical disc and rotary encoder with the optical elementHITACHI LTD·Filed 1989·Granted Dec 18, 1990·41 cites·22 claims
- 0689US5432644ADisk drive unit having motor components in a compact arrangementHITACHI LTD·Filed 1994·Granted Jul 11, 1995·48 cites·11 claims
- 0789US5311494AOptical disk apparatus and optical headHITACHI LTD·Filed 1991·Granted May 10, 1994·48 cites·11 claims
- 0889US4937808AIntergrated optical head with flexible substrate portionHITACHI LTD·Filed 1988·Granted Jun 26, 1990·40 cites·6 claims
- 0986US4841514AOptical recording method and apparatus using two fight spotsHITACHI LTD·Filed 1986·Granted Jun 20, 1989·35 cites·13 claims
- 1083US4811328AOptical recording and reproducing deviceHITACHI LTD·Filed 1985·Granted Mar 7, 1989·30 cites·16 claims
- 1182US5177717AOptical memory medium and its information recording and erasing method and apparatusHITACHI LTD·Filed 1991·Granted Jan 5, 1993·32 cites·40 claims
- 1277US4718053AOptical information apparatus and method of recording and erasing informationHITACHI LTD·Filed 1985·Granted Jan 5, 1988·23 cites·21 claims
- 1376US5475656AOptical disk memory and information processing apparatusHITACHI LTD·Filed 1991·Granted Dec 12, 1995·25 cites·23 claims
- 1475US5371730AOptical memory and information processing apparatusHITACHI LTD·Filed 1990·Granted Dec 6, 1994·23 cites·23 claims
- 1573US4499986AControl apparatus for passenger conveyorHITACHI LTD·Filed 1982·Granted Feb 19, 1985·24 cites·8 claims
- 1672US5317556AInformation processing apparatus and optical head incorporated thereinHITACHI LTD·Filed 1990·Granted May 31, 1994·21 cites·29 claims
- 1764US5484686AOptical recording media and information recording and reproducing unitsHITACHI LTD·Filed 1994·Granted Jan 16, 1996·21 cites·5 claims
- 1863US5583840AROM type optical recording medium with a high reflectivity and an optical head operable on ROM, write-one and rewritable diskHITACHI LTD·Filed 1994·Granted Dec 10, 1996·14 cites·36 claims
- 1962US4862440AOptical head with optical beam control using acoustic wave deviceHITACHI LTD·Filed 1987·Granted Aug 29, 1989·12 cites·11 claims
- 2060US5274612AInformation processor and disk memory used in the sameHITACHI LTD·Filed 1991·Granted Dec 28, 1993·13 cites·12 claims
- 2157US5110792AMethod and apparatus of optical modulation using superconductive oxide materialHITACHI LTD·Filed 1989·Granted May 5, 1992·16 cites·34 claims
- 2232USRE36624EOptical recording media and information recording and reproducing unitsHITACHI LTD·Filed 1998·Granted Mar 21, 2000·3 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →