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Rikuo Nasu
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Shiga, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for halogenating an aromatic compound
Patent number
5,491,239
Issue date
Feb 13, 1996
Ishihara Sangyo Kaisha Ltd.
Rikuo Nasu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 3,5-difluoraniline
Patent number
5,399,767
Issue date
Mar 21, 1995
Ishihara Sangyo Kaisha Ltd.
Rikuo Nasu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Method for producing dichloromethylpyridines
Patent number
5,290,944
Issue date
Mar 1, 1994
Ishihara Sangyo Kaisha Ltd.
Rikuo Nasu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Imidazole compounds and biocidal composition comprising the same fo...
Patent number
4,995,898
Issue date
Feb 26, 1991
Ishihara Sangyo Kaisha, Ltd.
Rikuo Nasu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Biocidal composition
Patent number
H811
Issue date
Aug 7, 1990
Ishihara Sangyo Kaisha Ltd.
Rikuo Nasu
514 - Drug, bio-affecting and body treating compositions
Information
Patent Grant
Process for producing 5-chloro-.beta.-trifluoromethylpyridines
Patent number
4,420,618
Issue date
Dec 13, 1983
Ishihara Sangyo Kaisha Ltd.
Isao Yokomichi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 4-(pyridyl-2-oxy)-phenoxyalkanecarboxylic aci...
Patent number
4,267,336
Issue date
May 12, 1981
Ishihara Sangyo Kaisha Ltd.
Ryuzo Nishiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 2-chloro-5-trichloromethyl pyridine
Patent number
4,241,213
Issue date
Dec 23, 1980
Ishihara Sangyo Kaisha Limited
Ryuzo Nishiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Herbicidal compound, herbicidal composition containing the same, an...
Patent number
4,231,787
Issue date
Nov 4, 1980
Ishihara Sangyo Kaisha Ltd.
Ryuzo Nishiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyridine-2-thio, -2-sulfinyl, and -2-sulfonyl sulfonanilide compoun...
Patent number
4,218,237
Issue date
Aug 19, 1980
Ishihara Sangyo Kaisha Limited
Ryuzo Nishiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-Benzoyl-N'-pyridyloxy phenyl urea and insecticidal compositions t...
Patent number
4,173,638
Issue date
Nov 6, 1979
Ishihara Sangyo Kaisha Ltd.
Ryuzo Nishiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
N-Benzoyl-N'-pyridyloxy phenyl urea and insecticidal compositions t...
Patent number
4,173,637
Issue date
Nov 6, 1979
Ishihara Sangyo Kaisha Ltd.
Ryuzo Nishiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
3,5-Dichloropyridyl-2-oxy-phenoxy malonic acids and derivatives and...
Patent number
4,140,520
Issue date
Feb 20, 1979
Ishihara Sangyo Kaisha Ltd.
Ryuzo Nishiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Herbicidal compound, herbicidal composition containing the same and...
Patent number
4,134,751
Issue date
Jan 16, 1979
Ishihara Sangyo Kaisha Ltd.
Ryuzo Nishiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Herbicidal compound, herbicidal composition containing the same, an...
Patent number
4,105,435
Issue date
Aug 8, 1978
Ishihara Sangyo Kaisha Ltd.
Ryuzo Nishiyama
C07 - ORGANIC CHEMISTRY