Koji Kaniwa

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Katsuta, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical disc device and tracking servo control circuit therefor
- Patent number 8,406,100
- Issue date Mar 26, 2013
- Hitachi-LG Data Storage, Inc.
- Hiroharu Sakai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc apparatus and back off control method for objective lens
- Patent number 8,315,131
- Issue date Nov 20, 2012
- Hitachi-LG Data Storage, Inc.
- Akihiro Ashida
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for recording and reproducing a video signal and for reco...
- Patent number 4,769,722
- Issue date Sep 6, 1988
- Hitachi, Ltd.
- Shigeyuki Itoh
- G11 - INFORMATION STORAGE
Information Patent Grant
Audio signal transmission system having noise reduction means
- Patent number 4,677,645
- Issue date Jun 30, 1987
- Hitachi, Ltd.
- Koji Kaniwa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL DISC DEVICE AND TRACKING SERVO CONTROL CIRCUIT THEREFOR
- Publication number 20110216638
- Publication date Sep 8, 2011
- Hiroharu SAKAI
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disc apparatus and back off control method for objective lens
- Publication number 20070076542
- Publication date Apr 5, 2007
- Hitachi-LG Data Storage, Inc.
- Akihiro Ashida
- G11 - INFORMATION STORAGE