Inventor · disambiguated record
Hisao Shirai
Also filed as: SHIRAI HISAO
5 granted patents·76 citations·filing 1980–2006
80Inventor score
Top patents by PatentIndex Score
5 records- 0188US7998282B2Heat treatment method of steel components, steel components and manufacture method of steel componentsAISIN AW CO·Filed 2006·Granted Aug 16, 2011·10 cites·25 claims
- 0281US4647008ASolenoid valve for hydraulic controlTOYOTA MOTOR CO LTD·Filed 1985·Granted Mar 3, 1987·40 cites·13 claims
- 0375US8430974B2Carburized and induction-hardened componentTANIGUCHI TAKAO·Filed 2006·Granted Apr 30, 2013·3 cites·19 claims
- 0453US4369558AOuter race working method and apparatus thereforTOYOTA MOTOR CO LTD·Filed 1980·Granted Jan 25, 1983·13 cites·5 claims
- 0543US4747763ARotor assembly of roots pumpTOYOTA MOTOR CO LTD·Filed 1986·Granted May 31, 1988·10 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when Hisao Shirai files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →