Inventor · disambiguated record
Sadao Sumikama
Also filed as: SUMIKAMA SADAO
3 granted patents·37 citations·filing 1973–1977
69Inventor score
Files withSHOWA DENKO KK3
Top patents by PatentIndex Score
3 records- 0172US3971246AMethod and apparatus for measuring the coefficient of thermal conductivity of a sampleSHOWA DENKO KK·Filed 1973·Granted Jul 27, 1976·27 cites·4 claims
- 0237US4126393AHigh-sensitivity differential refractometerSHOWA DENKO KK·Filed 1977·Granted Nov 21, 1978·7 cites·6 claims
- 0327US4000070AApparatus for protecting a liquid chromatography columnSHOWA DENKO KK·Filed 1976·Granted Dec 28, 1976·3 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Sadao Sumikama 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 →