Keishiro Nagao

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Amagasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polymerizable compositions and high refractive plastic lens obtaine...
- Patent number 5,384,380
- Issue date Jan 24, 1995
- Daiso Co., Ltd.
- Hiroyuki Kanesaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing pyridine-2,3-dicarboxylic acid compounds
- Patent number 4,948,896
- Issue date Aug 14, 1990
- Daiso Co., Ltd.
- Keishiro Nagao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the production of 2,3-dichloro-1-propanol
- Patent number 4,788,351
- Issue date Nov 29, 1988
- Osaka Soda Co., Ltd.
- Sadao Takakuwa
- C07 - ORGANIC CHEMISTRY