Inventor · disambiguated record
Yasuo Tsumurai
Also filed as: TSUMURAI YASUO
5 granted patents·346 citations·filing 1985–1991
84Inventor score
Technology areasF04D
Files withHITACHI LTD5
Top patents by PatentIndex Score
5 records- 0197USD315598SElectric fanHITACHI LTD·Filed 1989·Granted Mar 19, 1991·120 cites·1 claims
- 0295USD322669SElectric fanHITACHI LTD·Filed 1990·Granted Dec 24, 1991·71 cites·1 claims
- 0391US5266004ABlowerHITACHI LTD·Filed 1991·Granted Nov 30, 1993·119 cites·7 claims
- 0491USD290997SElectric fanHITACHI LTD·Filed 1985·Granted Jul 21, 1987·36 cites·1 claims
- 0528USD291486SElectric fanHITACHI LTD·Filed 1985·Granted Aug 18, 1987·0 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when Yasuo Tsumurai 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 →