Akihiro ASHIDA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hologram recording and reproducing apparatus
- Patent number 9,484,057
- Issue date Nov 1, 2016
- Hitachi-LG Data Storage, Inc.
- Kouji Fukuda
- 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
Optical disc device and tracking and slider control method
- Patent number 8,023,377
- Issue date Sep 20, 2011
- Hitachi-LG Data Storage, Inc.
- Ryuta Aihara
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and tracking control method
- Patent number 7,760,604
- Issue date Jul 20, 2010
- Hitachi-LG Data Storage Inc.
- Akihiro Ashida
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
HOLOGRAM RECORDING AND REPRODUCING APPARATUS
- Publication number 20160267936
- Publication date Sep 15, 2016
- Hitachi-LG Data Storage, Inc.
- Kouji FUKUDA
- G11 - INFORMATION STORAGE
Information Patent Application
HOLOGRAM RECORDING AND REPRODUCING APPARATUS
- Publication number 20160254021
- Publication date Sep 1, 2016
- Hitachi-LG Data Storage, Inc.
- Kouji FUKUDA
- G11 - INFORMATION STORAGE
Information Patent Application
Opitical disc device and tracking and slider control method
- Publication number 20080304376
- Publication date Dec 11, 2008
- Hitachi-LG Data Storage Inc.
- Ryuta Aihara
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disc device and tracking control method
- Publication number 20080123494
- Publication date May 29, 2008
- Akihiro Ashida
- 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