Keiichi Kagawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing optical disc and optical disc
- Patent number 7,833,378
- Issue date Nov 16, 2010
- Taiyo Yuden Co., Ltd.
- Kazunori Ishikura
- G11 - INFORMATION STORAGE
Information Patent Grant
Device for manufacturing optical disc, method of manufacturing the...
- Patent number 7,303,381
- Issue date Dec 4, 2007
- Taiyo Yuden Co., Ltd.
- Kazunori Ishikura
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of disposing of a waste optical disc
- Patent number 6,569,259
- Issue date May 27, 2003
- Taiyo Yuden Co., Ltd.
- Keiichi Kagawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of making an optical information recording substrate
- Patent number 5,498,509
- Issue date Mar 12, 1996
- Taiyo Yuden Co., Ltd.
- Yuaki Shin
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording substrate and method of making thereof
- Patent number 5,398,231
- Issue date Mar 14, 1995
- Taiyo Yuden Co., Ltd.
- Yuaki Shin
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MANUFACTURING OPTICAL DISC AND OPTICAL DISC
- Publication number 20080057259
- Publication date Mar 6, 2008
- Kazunori ISHIKURA
- G11 - INFORMATION STORAGE
Information Patent Application
Device for manufacturing optical disc, method of manufacturing the...
- Publication number 20050244751
- Publication date Nov 3, 2005
- Kazunori Ishikura
- G11 - INFORMATION STORAGE