Katsunari Sonoda

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Miyagi-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical coupling element and optical coupling unit
- Patent number 7,488,118
- Issue date Feb 10, 2009
- Alps Electric Co., Ltd.
- Katsunari Sonoda
- G02 - OPTICS
Information Patent Grant
Magnetic recording/regenerating apparatus
- Patent number 6,233,113
- Issue date May 15, 2001
- Alps Electric Co., Ltd.
- Masao Ohkita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording/regenerating apparatus
- Patent number 6,233,112
- Issue date May 15, 2001
- Alps Electric Co., Ltd.
- Masao Ohkita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording-reproducing device
- Patent number 6,188,541
- Issue date Feb 13, 2001
- Alps Electric Co., Ltd.
- Masao Ohkita
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL COUPLING ELEMENT AND OPTICAL COUPLING UNIT
- Publication number 20080285918
- Publication date Nov 20, 2008
- Alps Electric Co., Ltd.
- Katsunari SONODA
- G02 - OPTICS