Inventor · disambiguated record
Hirofumi Yamasaki
Also filed as: YAMASAKI HIROFUMI
11 granted patents·4 pending applications·137 citations·filing 1986–2024
90Inventor score
Files withTOYOTA MOTOR CO LTD5FUJITSU TEN LTD2TOYO ALUMINIUM EKCO PRODUCTS CO LTD2FIJITSU TEN LIMITED1JAPAN ANIMAL REFERRAL MEDICAL CENTER1
Top patents by PatentIndex Score
15 records- 0172US5190008ALean burn internal combustion engineFUJITSU TEN LTD·Filed 1992·Granted Mar 2, 1993·25 cites·6 claims
- 0263US5060618AMethod and apparatus for controlling torque variations in an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Oct 29, 1991·20 cites·12 claims
- 0362US2024416265A1Filter structureTOYO ALUMINIUM EKCO PRODUCTS CO LTD·Filed 2024·Application pending·0 cites
- 0460US6637637B2Reflow apparatusSHARP KK·Filed 2001·Granted Oct 28, 2003·9 cites·20 claims
- 0560US5762694AInk composition for marking penSAKURA COLOR PROD CORP·Filed 1996·Granted Jun 9, 1998·22 cites·17 claims
- 0657US2023132535A1Proliferation suppressing agent for canine cancer cellsJAPAN ANIMAL REFERRAL MEDICAL CENTER·Filed 2021·Application pending·0 cites
- 0755US4870583AConstant speed cruise control system of the duty ratio control typeFIJITSU TEN LIMITED·Filed 1986·Granted Sep 26, 1989·19 cites·15 claims
- 0854US5058556ADevice for determining activated condition of an oxygen sensorTOYOTA MOTOR CO LTD·Filed 1991·Granted Oct 22, 1991·18 cites·3 claims
- 0952US2024269594A1Filter structureTOYO ALUMINIUM EKCO PRODUCTS CO LTD·Filed 2022·Application pending·0 cites
- 1051US5067465ALean burn internal combustion engineFUJITSU TEN LTD·Filed 1991·Granted Nov 26, 1991·13 cites·6 claims
- 1147US2015105261A1Oxide superconducting thin film and method of manufacturing the sameNAGAISHI TATSUOKI·Filed 2012·Application pending·0 cites
- 1238US5146885AAir-fuel ratio control device for an engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Sep 15, 1992·6 cites·19 claims
- 1332US8088713B2Superconducting fault-current limiting element and the process for producing the sameYAMASAKI HIROFUMI·Filed 2005·Granted Jan 3, 2012·2 cites·8 claims
- 1432US5092297AAir-fuel ratio control device for a vehicle engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Mar 3, 1992·3 cites·28 claims
- 1530US5080074AAir-fuel ratio control device of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Jan 14, 1992·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Hirofumi Yamasaki 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 →