Inventor · disambiguated record
Koji Yoshifusa
Also filed as: YOSHIFUSA KOJI
3 granted patents·19 citations·filing 1990–1991
67Inventor score
Technology areasG11B
Files withSHARP KK3
Top patents by PatentIndex Score
3 records- 0149US5049733ASemiconductor chip detecting device for providing focusing and reproduction signalsSHARP KK·Filed 1990·Granted Sep 17, 1991·9 cites·7 claims
- 0241US5272329AOptical pickup device using a holographic optical element and an amplifierSHARP KK·Filed 1991·Granted Dec 21, 1993·5 cites·13 claims
- 0338US5007713ABeam converting apparatus with a parallel light beam input and output from one prism planeSHARP KK·Filed 1990·Granted Apr 16, 1991·5 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →