Inventor · disambiguated record
Tatsuhiko Sugai
Also filed as: SUGAI TATSUHIKO
2 granted patents·8 citations·filing 1975–1975
53Inventor score
Files withGAKKEN CO LTD2
Top patents by PatentIndex Score
2 records- 0135US4020505AMagnetic sheet player with an adjustable inclined magnetic headGAKKEN CO LTD·Filed 1975·Granted Apr 26, 1977·4 cites·14 claims
- 0230US4091427AElectric control system for magnetic sheet recording and reproducing apparatus for audiovisual instructionGAKKEN CO LTD·Filed 1975·Granted May 23, 1978·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →