Kei Ikeda

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Ehime, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical disc apparatus and optical disc determining method
- Patent number 7,852,715
- Issue date Dec 14, 2010
- Panasonic Corporation
- Kouji Hosokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk device
- Patent number 7,126,904
- Issue date Oct 24, 2006
- Matsushita Electric Industrial Co., Ltd.
- Seiji Nishiwaki
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL UNIT
- Publication number 20090274184
- Publication date Nov 5, 2009
- Matsushita Electric Industrial Co. Ltd.
- Kei Ikeda
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL DISC APPARATUS AND OPTICAL DISC DETERMINING METHOD
- Publication number 20090034399
- Publication date Feb 5, 2009
- Matsushita Electric Industrial Co., Ltd.
- Kouji Hosokawa
- G11 - INFORMATION STORAGE
Information Patent Application
Objective lens element with peripheral diffraction structure and ce...
- Publication number 20080080357
- Publication date Apr 3, 2008
- Matsushita Electric Industrial Co., Ltd.
- Yasuhiro Tanaka
- G11 - INFORMATION STORAGE
Information Patent Application
Objective lens element for optical disks and optical head device in...
- Publication number 20050111336
- Publication date May 26, 2005
- MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
- Yasuhiro Tanaka
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk device
- Publication number 20030072246
- Publication date Apr 17, 2003
- Seiji Nishiwaki
- G11 - INFORMATION STORAGE