Inventor · disambiguated record
Yoshihiko Masakawa
Also filed as: MASAKAWA YOSHIHIKO
4 granted patents·66 citations·filing 1983–1990
75Inventor score
Files withOLYMPUS OPTICAL CO4
Top patents by PatentIndex Score
4 records- 0183US5155719AOptical information recording and/or reproducing apparatusOLYMPUS OPTICAL CO·Filed 1990·Granted Oct 13, 1992·47 cites·13 claims
- 0254US4926402AMethod of recording bivalent signals on opto-magnetic record mediumOLYMPUS OPTICAL CO·Filed 1988·Granted May 15, 1990·11 cites·8 claims
- 0335US5028774AMethod and apparatus for detecting and measuring the refractive index of an optical disc substrateOLYMPUS OPTICAL CO·Filed 1990·Granted Jul 2, 1991·7 cites·9 claims
- 0426US4444807AMethod for treating a surface of a polyester filmOLYMPUS OPTICAL CO·Filed 1983·Granted Apr 24, 1984·1 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →