Shigeru Hirayama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Color filter
- Patent number 8,120,731
- Issue date Feb 21, 2012
- Toppan Printing Co., Ltd.
- Kazushige Kitazawa
- G02 - OPTICS
Information Patent Grant
Optical wiring layer, optoelectric wiring substrate, mounted substr...
- Patent number 6,438,281
- Issue date Aug 20, 2002
- Toppan Printing Co., Ltd.
- Takehito Tsukamoto
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Article having color pattern formed therein
- Publication number 20090068396
- Publication date Mar 12, 2009
- Toppan Printing Co., Ltd.
- Kazushige Kitazawa
- G02 - OPTICS