Inventor · disambiguated record
Keiji Yokoi
Also filed as: YOKOI KEIJI
3 granted patents·50 citations·filing 1993–1995
72Inventor score
Technology areasF04B
Files withEBARA CORP3
Top patents by PatentIndex Score
3 records- 0168US5403169APlunger pumpEBARA CORP·Filed 1994·Granted Apr 4, 1995·30 cites·14 claims
- 0242US5571002APlunger pump system with shuttle valveEBARA CORP·Filed 1995·Granted Nov 5, 1996·11 cites·4 claims
- 0339US5454698APlunger pump system with shuttle valveEBARA CORP·Filed 1993·Granted Oct 3, 1995·9 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Keiji Yokoi 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 →