Inventor · disambiguated record
Tadashi Oka
Also filed as: OKA TADASHI
3 granted patents·72 citations·filing 1995–2014
67Inventor score
Top patents by PatentIndex Score
3 records- 0187US5859862AOptical recording/reproducing apparatus having laser diode driver capable of a linear operation responsive to an input signal representative of a laser beam power varying depending on a magneto-optical disk-laser beam spot relative speedHITACHI LTD·Filed 1995·Granted Jan 12, 1999·66 cites·7 claims
- 0267US8724288B2Electrostatic chuck and vacuum processing apparatusSATOU TADAYUKI·Filed 2009·Granted May 13, 2014·6 cites·4 claims
- 0342US10276827B2Device structure and method of producing the sameULVAC INC·Filed 2014·Granted Apr 30, 2019·0 cites·9 claims
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