Inventor · disambiguated record
Takeshi Yamahara
Also filed as: YAMAHARA TAKESHI
4 granted patents·34 citations·filing 1974–1981
70Inventor score
Files withSUMITOMO CHEMICAL CO4
Top patents by PatentIndex Score
4 records- 0184US4398051AProduction of tertiary olefinsSUMITOMO CHEMICAL CO·Filed 1981·Granted Aug 9, 1983·26 cites·12 claims
- 0241US3980662AProcess for preparing acid amidesSUMITOMO CHEMICAL CO·Filed 1974·Granted Sep 14, 1976·7 cites·17 claims
- 0334US4082767AProduction of alpha-amino acidsSUMITOMO CHEMICAL CO·Filed 1976·Granted Apr 4, 1978·1 cites·9 claims
- 0428US4071569AProcess for producing phenolsSUMITOMO CHEMICAL CO·Filed 1976·Granted Jan 31, 1978·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →