Inventor · disambiguated record
Tatsuo Iwata
Also filed as: IWATA TATSUO
3 granted patents·28 citations·filing 1992–2001
65Inventor score
Technology areasH03H
Files withNGK SPARK PLUG CO3
Top patents by PatentIndex Score
3 records- 0162US5392012APiezoelectric filter in a casing sealed by an insulating filler and having cranked connecting legsNGK SPARK PLUG CO·Filed 1992·Granted Feb 21, 1995·18 cites·2 claims
- 0243US5939957A6-elements ladder type piezoelectric filterNGK SPARK PLUG CO·Filed 1997·Granted Aug 17, 1999·10 cites·5 claims
- 0332US6590474B2Multilayer piezoelectric filter with an air vent between two resonator chambersNGK SPARK PLUG CO·Filed 2001·Granted Jul 8, 2003·0 cites·12 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →