Inventor · disambiguated record
Heiji Sumida
Also filed as: SUMIDA HEIJI
3 granted patents·131 citations·filing 1978–1985
76Inventor score
Top patents by PatentIndex Score
3 records- 0189US4652618APolyorganosiloxane compositions for surface treatmentTOSHIBA SILICONE·Filed 1985·Granted Mar 24, 1987·52 cites·10 claims
- 0288US4252933ASelf-bonding silicone coating compositionGEN ELECTRIC·Filed 1978·Granted Feb 24, 1981·45 cites·16 claims
- 0379US4311737AAdhesive silicone compositions for substratesGEN ELECTRIC·Filed 1978·Granted Jan 19, 1982·34 cites·21 claims
Join the waitlist — get patent alerts
Get an alert when Heiji Sumida 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 →