Inventor · disambiguated record
Noriyoshi Ooyama
Also filed as: OOYAMA NORIYOSHI
3 granted patents·36 citations·filing 1987–2006
66Inventor score
Technology areasG11B
Files withSANYO ELECTRIC CO3
Top patents by PatentIndex Score
3 records- 0173US4767921AOptical pickup device wherein the astigmatic converged beam spot is aligned along the dividing lines of the four-division photo-detectorSANYO ELECTRIC CO·Filed 1987·Granted Aug 30, 1988·21 cites·4 claims
- 0265US5136565AOptical device for reading and writing data on a recording mediumSANYO ELECTRIC CO·Filed 1989·Granted Aug 4, 1992·15 cites·6 claims
- 0346US7672202B2Optical pickup apparatusSANYO ELECTRIC CO·Filed 2006·Granted Mar 2, 2010·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →