Keiji FUJITA

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Focus optical system and optical disc master exposure apparatus
- Patent number 7,933,189
- Issue date Apr 26, 2011
- Panasonic Corporation
- Takeshi Omori
- G11 - INFORMATION STORAGE
Information Patent Grant
Lighting assembly, exposure apparatus and exposure method employing...
- Patent number 5,748,288
- Issue date May 5, 1998
- Matsushita Electric Industrial Co., Ltd.
- Hiroyuki Nagano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of acid value determination by infrared absorption
- Patent number 5,420,041
- Issue date May 30, 1995
- Kurashiki Boseki Kabushiki Kaisha
- Kazuhiko Matsushita
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
FOCUS OPTICAL SYSTEM AND OPTICAL DISC MASTER EXPOSURE APPARATUS
- Publication number 20090262634
- Publication date Oct 22, 2009
- Takeshi OMORI
- G11 - INFORMATION STORAGE