Inventor · disambiguated record

Koichi Yoneyama

Also filed as: YONEYAMA KOICHI

2 granted patents·16 citations·filing 1982–1989

58Inventor score

Technology areasA01N

Files withMITSUBISHI CHEM IND2

Top patents by PatentIndex Score

2 records

0164US4971620ASulfonamide and herbicide containing the same as active ingredientMITSUBISHI CHEM IND·Filed 1989·Granted Nov 20, 1990·10 cites·6 claims
0264US4468245AN-(2,3-Epoxypropylene)-n-aralkylsulfonamide and herbicidal compositions containing the sameMITSUBISHI CHEM IND·Filed 1982·Granted Aug 28, 1984·6 cites·20 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →