Mayumi Tsukamoto

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Nagasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical pickup device and optical disk device
- Patent number 8,270,265
- Issue date Sep 18, 2012
- Panasonic Corporation
- Hideki Yoshinaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and optical disk device
- Patent number 7,889,620
- Issue date Feb 15, 2011
- Panasonic Corporation
- Masaharu Fukakusa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and optical disk drive
- Patent number 7,738,347
- Issue date Jun 15, 2010
- Panasonic Corporation
- Mayumi Tsukamoto
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Optical pickup device and optical disk device
- Publication number 20090040893
- Publication date Feb 12, 2009
- Matsushita Electric Industrial Co., Ltd.
- Hideki Yoshinaka
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device and optical disk device
- Publication number 20090040910
- Publication date Feb 12, 2009
- Matsushita Electric Industrial Co., Ltd.
- Masaharu Fukakusa
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISK DRIVE
- Publication number 20080062827
- Publication date Mar 13, 2008
- Matsushita Electric Industrial Co., Ltd.
- Mayumi TSUKAMOTO
- G11 - INFORMATION STORAGE