Inventor · disambiguated record
Isao Hirokawa
Also filed as: HIROKAWA ISAO
3 granted patents·42 citations·filing 1996–2010
71Inventor score
Top patents by PatentIndex Score
3 records- 0175US8418753B2Heat exchange tubeHIROKAWA ISAO·Filed 2010·Granted Apr 16, 2013·8 cites·1 claims
- 0271US7066296B2Valve device for silencerYUTAKA GIKEN CO LTD·Filed 2003·Granted Jun 27, 2006·17 cites·19 claims
- 0346US5712454AExhaust system in internal combustion engineHONDA MOTOR CO LTD·Filed 1996·Granted Jan 27, 1998·17 cites·5 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →