Yoshikazu Itoh

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Amidothiophosphate derivative and insecticide, nematocide and acari...
- Patent number 5,449,667
- Issue date Sep 12, 1995
- Sumitomo Chemical Company, Limited
- Yutaka Yoshii
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydroxamic acid esters and plant growth regulation therewith
- Patent number 5,228,899
- Issue date Jul 20, 1993
- Sumitomo Chemical Company Limited
- Yoshikazu Itoh
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thiophosphoric acid ester as a soil pest controlling agent
- Patent number 4,940,699
- Issue date Jul 10, 1990
- Sumitomo Chemical Company, Limited
- Yoshikazu Itoh
- C07 - ORGANIC CHEMISTRY