Yuichi Hagiwara

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Ichikawa-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
1,2-Naphthoquinone-2-diazidesulfonate ester photosensitive agent, m...
- Patent number 6,713,225
- Issue date Mar 30, 2004
- Toyo Gosei Kogyo Co., Ltd.
- Hirotada Iida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for producing 1,2-naphthoquinone-2-diazide-4-sulfonyl chloride
- Patent number 6,274,714
- Issue date Aug 14, 2001
- Toyo Gosei Kogyo Co., Ltd.
- Hirotada Iida
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
1, 2-Naphthoquinone-2-diazidesulfonate ester photosensitive agent,...
- Publication number 20030175613
- Publication date Sep 18, 2003
- Hirotada Iida
- C07 - ORGANIC CHEMISTRY