Inventor · disambiguated record
Toshio Niihara
Also filed as: NIIHARA TOSHIO
23 granted patents·352 citations·filing 1981–1997
96Inventor score
Top patents by PatentIndex Score
23 records- 0195US5959943AInformation recording medium with clock information thereinHITACHI LTD·Filed 1997·Granted Sep 28, 1999·69 cites·2 claims
- 0291US4743491APerpendicular magnetic recording medium and fabrication method thereforHITACHI LTD·Filed 1985·Granted May 10, 1988·46 cites·33 claims
- 0386US4571650AMagneto-optic information storage system utilizing a self-coupled laserHITACHI LTD·Filed 1983·Granted Feb 18, 1986·28 cites·20 claims
- 0477US5170383AMagneto-optical data recording systemHITACHI LTD·Filed 1989·Granted Dec 8, 1992·13 cites·23 claims
- 0575US5270987AMagneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium thereforHITACHI LTD·Filed 1990·Granted Dec 14, 1993·22 cites·53 claims
- 0675US4672594AMagneto-optical recording system utilizing a leakage magnetic field of focusing actuatorHITACHI LTD·Filed 1985·Granted Jun 9, 1987·20 cites·5 claims
- 0770US6493297B1Multibeam optical disk record and reproduction apparatus and methodHITACHI LTD·Filed 1993·Granted Dec 10, 2002·18 cites·18 claims
- 0868US4417762AMotor vehicle roofNISSAN MOTOR·Filed 1981·Granted Nov 29, 1983·22 cites·10 claims
- 0965US6200673B1Magneto-optical recording mediumHITACHI LTD·Filed 1990·Granted Mar 13, 2001·15 cites·9 claims
- 1064US4889757AOptical recording diskHITACHI LTD·Filed 1987·Granted Dec 26, 1989·12 cites·34 claims
- 1159US5914198AMagneto-optical recording medium having dielectric layers with different indices of refractionHITACHI LTD·Filed 1997·Granted Jun 22, 1999·14 cites·2 claims
- 1259US5473581AMagneto-optical data recording system continuously irradiating optical pulsersHITACHI LTD·Filed 1992·Granted Dec 5, 1995·7 cites·15 claims
- 1358US5321672AMethod of an apparatus for magneto-optically recording information by changing the position or shape or controlling the diameter of reversed domainsHITACHI LTD·Filed 1990·Granted Jun 14, 1994·11 cites·6 claims
- 1454US5462811AMagneto-optical recording media and mangeto-optical device using the mediaHITACHI LTD·Filed 1992·Granted Oct 31, 1995·9 cites·14 claims
- 1550US4923765AMagneto-optical recording mediumHITACHI LTD·Filed 1989·Granted May 8, 1990·7 cites·6 claims
- 1650US4880694AMagneto-optical recording materialHITACHI LTD·Filed 1988·Granted Nov 14, 1989·7 cites·20 claims
- 1747US5726955AMagneto optical recording medium apparatus and method utilizing light pulse magnetic modulation recordingHITACHI LTD·Filed 1996·Granted Mar 10, 1998·4 cites·9 claims
- 1847US5654058AMagneto-optical diskHITACHI LTD·Filed 1994·Granted Aug 5, 1997·11 cites·5 claims
- 1944US5886958AInformation recording apparatus and method for modulated magneto-optical recording mediumHITACHI LTD·Filed 1997·Granted Mar 23, 1999·3 cites·10 claims
- 2043US5179546AMagneto-optical disk and process for manufacturing the sameHITACHI LTD·Filed 1990·Granted Jan 12, 1993·5 cites·8 claims
- 2140US5263015AMagneto-optical recording media and overwrite recording method using the sameHITACHI LTD·Filed 1991·Granted Nov 16, 1993·4 cites·12 claims
- 2239US5579292AMagneto-optical data recording apparatus using a sample-servo system for applying heating pulses to record dataHITACHI LTD·Filed 1995·Granted Nov 26, 1996·2 cites·64 claims
- 2338US5434844AMagneto-optical recording media and magneto-optical recording device using the sameHITACHI LTD·Filed 1993·Granted Jul 18, 1995·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →