Sinzi Yosinaka

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Iwatsuki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Chromogenic recording materials
- Patent number 4,642,357
- Issue date Feb 10, 1987
- Shin Nisso Kako Cp., Ltd.
- Masakichi Yahagi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Chromogenic recording materials
- Patent number 4,590,498
- Issue date May 20, 1986
- Shin Nisso Kako Co., Ltd.
- Masakichi Yahagi
- C07 - ORGANIC CHEMISTRY