Inventor · disambiguated record
Yasuhumi Toyokawa
Also filed as: TOYOKAWA YASUHUMI
8 granted patents·101 citations·filing 1987–1989
88Inventor score
Files withKUMIAI CHEMICAL INDUSTRY CO8
Top patents by PatentIndex Score
8 records- 0190US4906285APyrimidine derivatives and herbicidal method and compositionsKUMIAI CHEMICAL INDUSTRY CO·Filed 1988·Granted Mar 6, 1990·25 cites·11 claims
- 0287US4932999APyrimidine compounds, and herbicidal method and compositionsKUMIAI CHEMICAL INDUSTRY CO·Filed 1989·Granted Jun 12, 1990·20 cites·6 claims
- 0384US4900352A2-Phenoxypyimidine derivative and herbicidal compositionKUMIAI CHEMICAL INDUSTRY CO·Filed 1988·Granted Feb 13, 1990·16 cites·11 claims
- 0480US4832729APicolinic acid derivatives and herbicidal compositionsKUMIAI CHEMICAL INDUSTRY CO·Filed 1987·Granted May 23, 1989·15 cites·35 claims
- 0576US4985066A2-phenoxypyrimidine derivative and herbicidal compositionKUMIAI CHEMICAL INDUSTRY CO·Filed 1989·Granted Jan 15, 1991·10 cites·14 claims
- 0666US4923501APyrimidine derivatives, processes for their production, and herbicidal method and compositionsKUMIAI CHEMICAL INDUSTRY CO·Filed 1988·Granted May 8, 1990·8 cites·12 claims
- 0752US4931087APicolinic acid derivatives and herbicidal compositionsKUMIAI CHEMICAL INDUSTRY CO·Filed 1989·Granted Jun 5, 1990·4 cites·6 claims
- 0850US5081244APyrimidine derivatives, processes for their production, and herbicidal method and compositionsKUMIAI CHEMICAL INDUSTRY CO·Filed 1989·Granted Jan 14, 1992·3 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →