Yoshiharu Fujino

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing 3,3-bis-(4-dimethylaminophenyl)-6-dimethylami...
- Patent number 4,845,245
- Issue date Jul 4, 1989
- Yamada Chemical Co., Ltd.
- Yoshiharu Fujino
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Divinyl compounds and chromogenic recording-material prepared by us...
- Patent number 4,835,291
- Issue date May 30, 1989
- Yamada Chemical Co., Ltd.
- Hajime Kawai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Divinyl compounds and chromogenic recording-material prepared by us...
- Patent number 4,808,567
- Issue date Feb 28, 1989
- Yamada Chemical Co., Ltd.
- Hajime Kawai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chromogenic compounds
- Patent number 4,564,679
- Issue date Jan 14, 1986
- Yamada Chemical Co., Ltd.
- Yoshiharu Fujino
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Chromogenic compounds and the use thereof as color former in copyin...
- Patent number 4,444,591
- Issue date Apr 24, 1984
- Yamada Chemical Co., Ltd.
- Hajime Kawai
- C07 - ORGANIC CHEMISTRY