Yasuhumi Toyokawa

Person

Ogasa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Pyrimidine derivatives, processes for their production, and herbici...
- Patent number 5,081,244
- Issue date Jan 14, 1992
- Kumiai Chemical Industry Co., Ltd.
- Nobuhide Wada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-phenoxypyrimidine derivative and herbicidal composition
- Patent number 4,985,066
- Issue date Jan 15, 1991
- Kumiai Chemical Industry Co., Ltd.
- Nobuhide Wada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyrimidine compounds, and herbicidal method and compositions
- Patent number 4,932,999
- Issue date Jun 12, 1990
- Kumiai Chemical Industry Co., Ltd.
- Yoshihiro Saito
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Picolinic acid derivatives and herbicidal compositions
- Patent number 4,931,087
- Issue date Jun 5, 1990
- Kumiai Chemical Industry Co., Ltd.
- Masahiro Shigematsu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyrimidine derivatives, processes for their production, and herbici...
- Patent number 4,923,501
- Issue date May 8, 1990
- Kumiai Chemical Industry Co., Ltd.
- Yoshihiro Saito
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyrimidine derivatives and herbicidal method and compositions
- Patent number 4,906,285
- Issue date Mar 6, 1990
- Kumiai Chemical Industry Co., Ltd.
- Nobuhide Wada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-Phenoxypyimidine derivative and herbicidal composition
- Patent number 4,900,352
- Issue date Feb 13, 1990
- Kumiai Chemical Industry Co., Ltd.
- Nobuhide Wada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Picolinic acid derivatives and herbicidal compositions
- Patent number 4,832,729
- Issue date May 23, 1989
- Kumiai Chemical Industry Co., Ltd.
- Masahiro Shigematsu
- C07 - ORGANIC CHEMISTRY

Yasuhumi Toyokawa

Person

Patents Grantslast 30 patents

Pyrimidine derivatives, processes for their production, and herbici...

2-phenoxypyrimidine derivative and herbicidal composition

Pyrimidine compounds, and herbicidal method and compositions

Picolinic acid derivatives and herbicidal compositions

Pyrimidine derivatives, processes for their production, and herbici...

Pyrimidine derivatives and herbicidal method and compositions

2-Phenoxypyimidine derivative and herbicidal composition

Picolinic acid derivatives and herbicidal compositions