Inventor · disambiguated record
Isao Fukai
Also filed as: FUKAI ISAO
8 granted patents·55 citations·filing 1991–1992
85Inventor score
Files withTOKO INC8
Top patents by PatentIndex Score
8 records- 0156US5258716AAll-pass filterTOKO INC·Filed 1992·Granted Nov 2, 1993·14 cites·1 claims
- 0251US5182522APolar leapfrog filterTOKO INC·Filed 1992·Granted Jan 26, 1993·11 cites·4 claims
- 0345US5216375AVariable time-constant type differentiatorTOKO INC·Filed 1991·Granted Jun 1, 1993·8 cites·3 claims
- 0439US5298813APolar leapfrog filterTOKO INC·Filed 1992·Granted Mar 29, 1994·6 cites·3 claims
- 0539US5177382AActive filter circuitTOKO INC·Filed 1991·Granted Jan 5, 1993·6 cites·2 claims
- 0633US5302910AFM detector circuit with error voltage applied to phase shifting circuitTOKO INC·Filed 1992·Granted Apr 12, 1994·4 cites·2 claims
- 0733US5296763APolar leapfrog filterTOKO INC·Filed 1992·Granted Mar 22, 1994·3 cites·7 claims
- 0833US5293086APolar leapfrog filterTOKO INC·Filed 1992·Granted Mar 8, 1994·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →