Inventor · disambiguated record
Koji Tsumaki
Also filed as: TSUMAKI KOJI
3 granted patents·46 citations·filing 1984–1988
71Inventor score
Files withHITACHI LTD3
Top patents by PatentIndex Score
3 records- 0170US4641526AMethod and apparatus for estimating sound source positionHITACHI LTD·Filed 1984·Granted Feb 10, 1987·26 cites·11 claims
- 0256US4812774AElectron beam stabilizing method for electron storing ring, and electron storing ring systemHITACHI LTD·Filed 1987·Granted Mar 14, 1989·15 cites·5 claims
- 0335US4916404AElectron storage ringHITACHI LTD·Filed 1988·Granted Apr 10, 1990·5 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Koji Tsumaki 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 →