Inventor · disambiguated record
Masumi Ohta
Also filed as: OHTA MASUMI
8 granted patents·216 citations·filing 1990–1994
88Inventor score
Files withSONY CORP8
Top patents by PatentIndex Score
8 records- 0194US5168482AMagnetooptical recording and playback method employing multi-layer recording medium with record holding layer and playback layerSONY CORP·Filed 1990·Granted Dec 1, 1992·78 cites·5 claims
- 0287US5579294AMagneto-optical medium and recording and/or reproducing apparatus thereofSONY CORP·Filed 1994·Granted Nov 26, 1996·42 cites·14 claims
- 0385US5241520ASystem and method of reproducing signals recorded on a magneto-optic recording mediumSONY CORP·Filed 1991·Granted Aug 31, 1993·40 cites·28 claims
- 0471US5513167AOptical recording apparatusSONY CORP·Filed 1994·Granted Apr 30, 1996·20 cites·4 claims
- 0566US5265074AMagneto-optical recording mediumSONY CORP·Filed 1992·Granted Nov 23, 1993·16 cites·8 claims
- 0662US5218581AMagneto-optical recording medium and method for reproducing signal using an external magnetic field from such a mediumSONY CORP·Filed 1991·Granted Jun 8, 1993·14 cites·10 claims
- 0735US5230930AMethod of fabricating a high-density magnetooptic recording mediumSONY CORP·Filed 1992·Granted Jul 27, 1993·2 cites·1 claims
- 0833US5380573AOptical recording mediumSONY CORP·Filed 1991·Granted Jan 10, 1995·4 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →