Mitsuhiro Akiyama

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Fresnel lens sheet and rear projection screen
- Patent number 7,196,845
- Issue date Mar 27, 2007
- Mitsubishi Gas Chemical Company, Inc.
- Yukio Kokuzawa
- G02 - OPTICS
Information Patent Grant
Light diffusing laminated plate
- Patent number 6,917,469
- Issue date Jul 12, 2005
- Japan Acryace Co., Ltd.
- Yoshiaki Momose
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Light diffusing laminated plate
- Publication number 20040263966
- Publication date Dec 30, 2004
- JAPAN ACRYACE CO., LTD.
- Yoshiaki Momose
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fresnel lens sheet and rear projection screen
- Publication number 20040227991
- Publication date Nov 18, 2004
- Yukio Kokuzawa
- G02 - OPTICS