Akifumi Ogiwara

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing lighting device, image display, liquid cry...
- Patent number 7,525,531
- Issue date Apr 28, 2009
- Toshiba Matsushita Display Technology Co., Ltd
- Akifumi Ogiwara
- G02 - OPTICS
Information Patent Grant
Illuminator, image display comprising the same, liquid crystal tele...
- Patent number 7,133,019
- Issue date Nov 7, 2006
- Matsushita Electric Industrial Co., Ltd.
- Akifumi Ogiwara
- G02 - OPTICS
Information Patent Grant
Image display device
- Patent number 6,791,566
- Issue date Sep 14, 2004
- Matsushita Electric Industrial Co., Ltd.
- Yasunori Kuratomi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Three-dimensional picture image display apparatus
- Patent number 6,057,878
- Issue date May 2, 2000
- Matsushita Electric Industrial Co., Ltd.
- Akifumi Ogiwara
- G02 - OPTICS
Information Patent Grant
Driving method for spatial light modulator and projection display s...
- Patent number 5,731,797
- Issue date Mar 24, 1998
- Matsushita Electric Industrial Co., Ltd.
- Koji Akiyama
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Spatial light modulator, method of production thereof and projectio...
- Patent number 5,583,676
- Issue date Dec 10, 1996
- Matsushita Electric Industrial Co., Ltd.
- Koji Akiyama
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Illuminator, image display, liquid crystal monitor, liquid crystal...
- Publication number 20030210222
- Publication date Nov 13, 2003
- Akifumi Ogiwara
- G02 - OPTICS
Information Patent Application
Illuminator, image display comprising the same, liquid crystal tele...
- Publication number 20030184690
- Publication date Oct 2, 2003
- Akifumi Ogiwara
- G02 - OPTICS