Sen-ichi Narita

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Fukushima, JP

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Patents Grantslast 30 patents

Information Patent Grant
Substituted cyclic amine compound, production process thereof and p...
- Patent number 5,728,835
- Issue date Mar 17, 1998
- Toa Eiyo, Ltd.
- Tsuyoshi Aoki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Cis-bicyclo[4,3.0]non-2-end derivatives
- Patent number 5,117,037
- Issue date May 26, 1992
- Sagami Chemical Research Center Toa Eiyo Ltd.
- Masakatsu Shibasaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dibenzo[a,d]cycloheptene derivatives and process for production the...
- Patent number 4,410,716
- Issue date Oct 18, 1983
- Toa Eiyo Kagaku Kogyo Co. Ltd.
- Tetsutaro Hayasaka
- C07 - ORGANIC CHEMISTRY