Inventor · disambiguated record
Eiji Usui
Also filed as: USUI EIJI
3 granted patents·88 citations·filing 1976–1993
74Inventor score
Top patents by PatentIndex Score
3 records- 0187US5370743AMethods for controlling the concentration of detergentsSPEEDFAM CLEAN SYSTEM COMPANY·Filed 1993·Granted Dec 6, 1994·60 cites·3 claims
- 0253US4099205APhase control systemCHUBU NIPPON BROADCASTING CO L·Filed 1976·Granted Jul 4, 1978·13 cites·9 claims
- 0350US5263264AMethod and apparatus for drying wet workSPEEDFAM CLEAN SYSTEM COMPANY·Filed 1991·Granted Nov 23, 1993·15 cites·17 claims
Join the waitlist — get patent alerts
Get an alert when Eiji Usui 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 →