Inventor · disambiguated record
Tsuneo Yanagida
Also filed as: YANAGIDA TSUNEO
9 granted patents·124 citations·filing 1981–1994
88Inventor score
Technology areasG11B
Files withOLYMPUS OPTICAL CO9
Top patents by PatentIndex Score
9 records- 0189US4472748AMethod of processing information signal with respect to opto-magnetic record mediumOLYMPUS OPTICAL CO·Filed 1981·Granted Sep 18, 1984·36 cites·16 claims
- 0286US4837758AMagneto-optical recording reproducing device having field applying meansOLYMPUS OPTICAL CO·Filed 1986·Granted Jun 6, 1989·35 cites·7 claims
- 0359US5083303ASector mark detecting apparatus in optical disc apparatusOLYMPUS OPTICAL CO·Filed 1989·Granted Jan 21, 1992·13 cites·17 claims
- 0457US5555232AOptical head with built-in semiconductor laser, objective lens and 1/4 wavelength plateOLYMPUS OPTICAL CO·Filed 1994·Granted Sep 10, 1996·11 cites·15 claims
- 0554USD288558SOptical pickup for use in optical discsOLYMPUS OPTICAL CO·Filed 1984·Granted Mar 3, 1987·6 cites·1 claims
- 0651US5159584ABias-Magnetic field generating system of photo-magnetic recording deviceOLYMPUS OPTICAL CO·Filed 1991·Granted Oct 27, 1992·9 cites·3 claims
- 0746US5202877AApparatus for detecting unused sector on record mediumOLYMPUS OPTICAL CO·Filed 1990·Granted Apr 13, 1993·7 cites·15 claims
- 0840US5249171AOpto-magnetic pick-up device including phase difference correcting meansOLYMPUS OPTICAL CO·Filed 1991·Granted Sep 28, 1993·4 cites·14 claims
- 0935US4757487AMethod and apparatus for detecting track crossings on an optical discOLYMPUS OPTICAL CO·Filed 1985·Granted Jul 12, 1988·3 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →