Toru Sugaya

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing tetrahydroisoquinoline-3-carboxylic acid comp...
- Patent number 5,602,255
- Issue date Feb 11, 1997
- Kyowa Hakko Kogyo Co., Ltd.
- Yukihiro Kuge
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
6H-pyrazolo-[4,5,1-d,e]acridin-6-one derivatives having anit-tumor...
- Patent number 5,079,358
- Issue date Jan 7, 1992
- Kyowa Hakko Kogyo Co., Ltd.
- Toru Sugaya
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1-benzyl-3,5-dimethyl-4-piperdyl ester of a Hantzsch dihydropyridine
- Patent number 4,639,522
- Issue date Jan 27, 1987
- Kyowa Hakko Kogyo Co., Ltd.
- Kenji Muto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1,4-Dihydropyridine derivatives
- Patent number 4,448,964
- Issue date May 15, 1984
- Kyowa Hakko Kogyo Co., Ltd.
- Kenji Muto
- C07 - ORGANIC CHEMISTRY