Inventor · disambiguated record
Hideki Akasaka
Also filed as: AKASAKA HIDEKI
19 granted patents·347 citations·filing 1973–1995
95Inventor score
Top patents by PatentIndex Score
19 records- 0189US4855975AOver write capable magnetooptical recording method using two beams, and magnetooptical recording apparatus thereforNIKON CORP·Filed 1987·Granted Aug 8, 1989·42 cites·11 claims
- 0288US4853912AProcess and apparatus for simultaneous erasure and recording in magneto-optical recordingNIKON CORP·Filed 1987·Granted Aug 1, 1989·35 cites·14 claims
- 0383US5239524AOver write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used thereforNIKON CORP·Filed 1989·Granted Aug 24, 1993·25 cites·26 claims
- 0479US4350414AAll solid state electrochromic deviceNIPPON KOGAKU KK·Filed 1980·Granted Sep 21, 1982·42 cites·5 claims
- 0579US4135790AElectrochromic elementNIPPON KOGAKU KK·Filed 1977·Granted Jan 23, 1979·36 cites·5 claims
- 0674US3936136AMultilayer anti-reflection film for ultraviolet raysNIPPON KOGAKU KK·Filed 1973·Granted Feb 3, 1976·29 cites·7 claims
- 0769US5475657AOverwrite capable magnetooptial recording apparatusNIKON CORP·Filed 1993·Granted Dec 12, 1995·15 cites·3 claims
- 0865US4753853ADouble-layered magnetooptical recording mediumNIPPON KOGAKU KK·Filed 1985·Granted Jun 28, 1988·20 cites·4 claims
- 0964US5458987AMultilayered magnetooptical recording mediumNIKON CORP·Filed 1993·Granted Oct 17, 1995·12 cites·18 claims
- 1061US5204193ARecording magnetooptical recording mediumNIPPON KOGAKU KK·Filed 1991·Granted Apr 20, 1993·21 cites·12 claims
- 1152US5140654AOptical waveguide device for polarization rotationNIKON CORP·Filed 1991·Granted Aug 18, 1992·17 cites·3 claims
- 1250US5389455AOver-write capable magnetooptical recording medium having C/N ratio exceeding 53 dBNIKON CORP·Filed 1992·Granted Feb 14, 1995·9 cites·2 claims
- 1350US5293291AOptical integrated device for magneto-optical reproducing headNIKON CORP·Filed 1992·Granted Mar 8, 1994·8 cites·8 claims
- 1449US5440531AMagneto-optical reproducing methodNIKON CORP·Filed 1994·Granted Aug 8, 1995·7 cites·5 claims
- 1548US5014252AOver write capable magnetooptical recording method using two beams, and magnetooptical recording apparatus thereforNIKON CORP·Filed 1990·Granted May 7, 1991·7 cites·6 claims
- 1647US5539709AMagnetooptical recording method and apparatus using multi-layered mediaNIKON CORP·Filed 1993·Granted Jul 23, 1996·5 cites·5 claims
- 1747US5367507AOver write capable magnetooptical recording method, and magnetooptical recording apparatus and medium used thereforNIKON CORP·Filed 1993·Granted Nov 22, 1994·5 cites·1 claims
- 1844US4433901AAll solid type electrochromic display elementNIPPON KOGAKU KK·Filed 1981·Granted Feb 28, 1984·11 cites·4 claims
- 1933US5680373AReproducing apparatus for magneto-optical recording deviceNIKON CORP·Filed 1995·Granted Oct 21, 1997·1 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →