Inventor · disambiguated record
Norishige Hirakawa
Also filed as: HIRAKAWA NORISHIGE
4 granted patents·45 citations·filing 1986–1990
76Inventor score
Technology areasF04D
Top patents by PatentIndex Score
4 records- 0154USD296556SBellows pumpIWAKI CO LTD·Filed 1986·Granted Jul 5, 1988·7 cites·1 claims
- 0251US5154587AMagnet pumpWORLD CHEM KK·Filed 1990·Granted Oct 13, 1992·22 cites·10 claims
- 0347USD300034SBellows pumpIWAKI CO LTD·Filed 1986·Granted Feb 28, 1989·5 cites·1 claims
- 0441US4684333ASelf-priming pumpIWAKI CO LTD·Filed 1986·Granted Aug 4, 1987·11 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →