Inventor · disambiguated record
Yoshio Shinagawa
Also filed as: SHINAGAWA YOSHIO
4 granted patents·145 citations·filing 1989–1993
81Inventor score
Files withMITSUI PETROCHEMICAL IND4
Top patents by PatentIndex Score
4 records- 0186US5256176AFilm electret and an electret filterMITSUI PETROCHEMICAL IND·Filed 1991·Granted Oct 26, 1993·68 cites·20 claims
- 0267US5246637AMethod for producing electret filterMITSUI PETROCHEMICAL IND·Filed 1992·Granted Sep 21, 1993·29 cites·15 claims
- 0362US5304227AElectret filtersMITSUI PETROCHEMICAL IND·Filed 1993·Granted Apr 19, 1994·27 cites·7 claims
- 0455US5143767AProcesses for preparing electret filtersMITSUI PETROCHEMICAL IND·Filed 1989·Granted Sep 1, 1992·21 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →