Inventor · disambiguated record
Masaharu Takayama
Also filed as: TAKAYAMA MASAHARU
3 granted patents·17 citations·filing 1973–1975
63Inventor score
Files withSUMITOMO CHEMICAL CO3
Top patents by PatentIndex Score
3 records- 0154US3979390AButyrophenone derivatives and production thereofSUMITOMO CHEMICAL CO·Filed 1973·Granted Sep 7, 1976·14 cites·6 claims
- 0250US4012515AAryl ketones and production thereofSUMITOMO CHEMICAL CO·Filed 1975·Granted Mar 15, 1977·2 cites·6 claims
- 0343US4012514AAryl ketones and production thereofSUMITOMO CHEMICAL CO·Filed 1975·Granted Mar 15, 1977·1 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Masaharu Takayama 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 →