Inventor · disambiguated record
Toshihiko Hosaka
Also filed as: HOSAKA TOSHIHIKO
3 granted patents·94 citations·filing 1979–1981
74Inventor score
Top patents by PatentIndex Score
3 records- 0185US4338682ATracking servo system of video disc playerHOSAKA TOSHIHIKO·Filed 1980·Granted Jul 6, 1982·43 cites·8 claims
- 0283US4475182AFocus servo control system for automatically adjusting a relative distance between an objective lens unit and a recording surface of an optical recording mediumUNIVERSAL PIONEER CORP·Filed 1981·Granted Oct 2, 1984·44 cites·6 claims
- 0336US4286147AIn-focus detecting deviceUNIVERSAL PIONEER CORP·Filed 1979·Granted Aug 25, 1981·7 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →