Sinzi Yoshinaka

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Iwatsuki, JP

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Patents Grantslast 30 patents

Information Patent Grant
3-N-isobutylethylamino-6-methyl-7-phenylaminofluoran
- Patent number 4,665,199
- Issue date May 12, 1987
- Shin Nisso Kako Co., Ltd.
- Masakichi Yahagi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chromogenic recording materials
- Patent number 4,613,879
- Issue date Sep 23, 1986
- Shin Nisso Kako Co., Ltd.
- Masakichi Yahagi
- C07 - ORGANIC CHEMISTRY