Inventor · disambiguated record
Toshihiko Okina
Also filed as: OKINA TOSHIHIKO
4 granted patents·50 citations·filing 1989–2000
75Inventor score
Technology areasG11B
Top patents by PatentIndex Score
4 records- 0179US5206771ATape drive mechanismSANKYO SEIKI SEISAKUSHO KK·Filed 1989·Granted Apr 27, 1993·31 cites·5 claims
- 0258US6522619B2Optical pick-up device having a plurality of light sources with different calorific values and method of manufacturing the sameSANKYO SEIKI SEISAKUSHO KK·Filed 2000·Granted Feb 18, 2003·4 cites·8 claims
- 0355US5270890AHelical scan type rotary head apparatusJAPAN BROADCASTING CORP·Filed 1990·Granted Dec 14, 1993·13 cites·10 claims
- 0425US5373404AHelical scan type rotary head drum unitKABUSHKI KAISHA SANKYO SEIKI S·Filed 1993·Granted Dec 13, 1994·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →