Keiichi Minakuchi

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Niihama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal display device
- Patent number 6,738,117
- Issue date May 18, 2004
- Sumitomo Chemical Company, Limited
- Keiichi Minakuchi
- G02 - OPTICS
Information Patent Grant
Glare-resistant touch panel
- Patent number 6,559,834
- Issue date May 6, 2003
- Gunze Limited
- Yukio Murakami
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Process for producing phase retarder film
- Patent number 5,472,538
- Issue date Dec 5, 1995
- Sumitomo Chemical Co., Ltd.
- Keiichi Minakuchi
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Liquid crystal display device
- Publication number 20020047969
- Publication date Apr 25, 2002
- Sumitomo Chemical Company, Limited
- Keiichi Minakuchi
- G02 - OPTICS