Inventor · disambiguated record
Takesumi Nagai
Also filed as: NAGAI TAKESUMI
3 granted patents·80 citations·filing 1981–1991
73Inventor score
Technology areasH03H
Files withNGK SPARK PLUG CO3
Top patents by PatentIndex Score
3 records- 0190US4398162ALadder-type piezoelectric filtersNGK SPARK PLUG CO·Filed 1981·Granted Aug 9, 1983·55 cites·5 claims
- 0265US5077544ALadder-type piezoelectric filter having higher input and output Qm valuesNGK SPARK PLUG CO·Filed 1989·Granted Dec 31, 1991·16 cites·2 claims
- 0343US5130680ALadder-type electric filterNGK SPARK PLUG CO·Filed 1991·Granted Jul 14, 1992·9 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →