Inventor · disambiguated record
Harumitsu Sugiyama
Also filed as: SUGIYAMA HARUMITSU
4 granted patents·169 citations·filing 1991–2003
81Inventor score
Top patents by PatentIndex Score
4 records- 0190US5172714AFuel check valve assembly for fuel tankNISSAN MOTOR·Filed 1991·Granted Dec 22, 1992·73 cites·22 claims
- 0277US5277217AFuel interrupt/pressure release valve arrangement for fuel tankNISSAN MOTOR·Filed 1992·Granted Jan 11, 1994·53 cites·13 claims
- 0370US5564466ANegative pressure cut valvePIOLAX INC·Filed 1995·Granted Oct 15, 1996·32 cites·14 claims
- 0460US6827098B2Fuel cut-off apparatus for fuel tankPIOLAX INC·Filed 2003·Granted Dec 7, 2004·11 cites·21 claims
Join the waitlist — get patent alerts
Get an alert when Harumitsu Sugiyama 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 →