Koichi Yokoyama

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laser driving device, laser driving method, optical unit, and light...
- Patent number 8,369,368
- Issue date Feb 5, 2013
- Sony Corporation
- Tsutomu Kurihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Laser driving device and optical apparatus
- Patent number 8,228,773
- Issue date Jul 24, 2012
- Sony Corporation
- Tsutomu Kurihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Laser driving device and method with control signal patterns, refer...
- Patent number 8,199,625
- Issue date Jun 12, 2012
- Sony Corporation
- Tsutomu Kurihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Laser driving device, optical unit, and light device which can chan...
- Patent number 8,107,342
- Issue date Jan 31, 2012
- Sony Corporation
- Tsutomu Kurihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Parallel/serial conversion circuit, light output control circuit, a...
- Patent number 6,816,095
- Issue date Nov 9, 2004
- Sony Corporation
- Koichi Yokoyama
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Laser driving device, laser driving method, optical unit, and light...
- Publication number 20100260028
- Publication date Oct 14, 2010
- SONY CORPORATION
- Tsutomu Kurihara
- G11 - INFORMATION STORAGE
Information Patent Application
Laser driving device, laser driving method, optical unit, and light...
- Publication number 20100260029
- Publication date Oct 14, 2010
- SONY CORPORATION
- Tsutomu Kurihara
- G11 - INFORMATION STORAGE
Information Patent Application
LASER DRIVING DEVICE, OPTICAL UNIT, AND LIGHT DEVICE
- Publication number 20100202273
- Publication date Aug 12, 2010
- Tsutomu KURIHARA
- G11 - INFORMATION STORAGE
Information Patent Application
Laser driving device and optical apparatus
- Publication number 20100054102
- Publication date Mar 4, 2010
- SONY CORPORATION
- Tsutomu Kurihara
- G11 - INFORMATION STORAGE