Inventor · disambiguated record
Tsukasa Okai
Also filed as: OKAI TSUKASA · SUGIYAMA FUMIO
4 granted patents·64 citations·filing 1977–1983
77Inventor score
Top patents by PatentIndex Score
4 records- 0161US4305152ASecurity communication systemTOKYO SHIBAURA ELECTRIC CO·Filed 1979·Granted Dec 8, 1981·14 cites·6 claims
- 0258US4700402AInput method for graphic pattern dataDAINIPPON SCREEN MFG·Filed 1983·Granted Oct 13, 1987·16 cites·5 claims
- 0358US4513444AMethod of compressing dataDAINIPPON SCREEN MFG·Filed 1983·Granted Apr 23, 1985·28 cites·4 claims
- 0442US4159399ASecurity communication system using polarity inversionTOKYO SHIBAURA ELECTRIC CO·Filed 1977·Granted Jun 26, 1979·6 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →