Inventor · disambiguated record
Keiji Hatayama
Also filed as: HATAYAMA KEIJI
3 granted patents·70 citations·filing 1983–1983
73Inventor score
Files withKOMATSU MFG CO LTD3
Top patents by PatentIndex Score
3 records- 0175US4519275ATurning control system for a hydro-mechanical transmissionKOMATSU MFG CO LTD·Filed 1983·Granted May 28, 1985·30 cites·3 claims
- 0265US4497223AEngine speed control system for a hydro-mechanical transmissionKOMATSU MFG CO LTD·Filed 1983·Granted Feb 5, 1985·22 cites·3 claims
- 0359US4519274AAutomatic speed range change-over system for a hydro-mechanical transmissionKOMATSU MFG CO LTD·Filed 1983·Granted May 28, 1985·18 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Keiji Hatayama 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 →