Inventor · disambiguated record
Isamu Shirai
Also filed as: SHIRAI ISAMU
7 granted patents·1 pending application·73 citations·filing 1978–2008
83Inventor score
Technology areasF16D
Top patents by PatentIndex Score
8 records- 0182US4227600AElectromagnetic clutchesSANKYO ELECTRIC CO·Filed 1978·Granted Oct 14, 1980·26 cites·6 claims
- 0273US4243128AElectromagnetic clutchesSANKYO ELECTRONIC·Filed 1978·Granted Jan 6, 1981·23 cites·7 claims
- 0358US7311188B2Electromagnetic clutchSANDEN CORP·Filed 2004·Granted Dec 25, 2007·6 cites·7 claims
- 0454US7178653B2Electromagnetic clutchSANDEN CORP·Filed 2004·Granted Feb 20, 2007·4 cites·14 claims
- 0553US4301906AElectromagnetic clutchesSANKYO ELECTRIC CO·Filed 1979·Granted Nov 24, 1981·11 cites·3 claims
- 0641US7537098B2Electromagnetic clutchSANDEN CORP·Filed 2004·Granted May 26, 2009·0 cites·2 claims
- 0737US2010258400A1Electromagnetic clutchSHIRAI ISAMU·Filed 2008·Application pending·0 cites
- 0823US4819778AEngagement device for an electromagnetic spring-wound clutchSANDEN CORP·Filed 1984·Granted Apr 11, 1989·3 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Isamu 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 →