Kayoko Nakamura

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Chiba, JP

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Patents Grantslast 30 patents

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2,5-disubstituted pyrazine derivatives, pyrimidine derivatives, and...
- Patent number 5,128,472
- Issue date Jul 7, 1992
- Dainippon Ink and Chemicals, Inc.
- Masashi Osawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optically active compound, intermediate therefor, process for produ...
- Patent number 5,064,564
- Issue date Nov 12, 1991
- Dainippon Ink and Chemicals, Inc.
- Sadao Takehara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optically active lactone derivative, intermediate therefor, process...
- Patent number 5,061,398
- Issue date Oct 29, 1991
- Dainippon Ink and Chemicals, Inc.
- Sadao Takehara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2,4-disubstituted pyrazine derivatives, pyrimidine derivatives, and...
- Patent number 4,997,942
- Issue date Mar 5, 1991
- Dainippon Ink & Chemical, Inc.
- Masashi Osawa
- C07 - ORGANIC CHEMISTRY