by astigmatic methods

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CPC
G11B7/0909

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Parent Industries

GPHYSICS G11Information storage G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER G11B7/00Recording or reproducing by optical means

Current Industry

G11B7/0909by astigmatic methods

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Diffractive optical element, projection device and measuring device
- Patent number 11,598,972
- Issue date Mar 7, 2023
- AGC Inc.
- Koji Miyasaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording/reproducing apparatus
- Patent number 9,672,860
- Issue date Jun 6, 2017
- Kabushiki Kaisha Toshiba
- Hideaki Okano
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device and focus jump method
- Patent number 9,082,429
- Issue date Jul 14, 2015
- Funai Electric Co., Ltd.
- Kazuki Kajikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and optical disc apparatus for recording and...
- Patent number 8,737,180
- Issue date May 27, 2014
- Hitachi Media Electronics Co., Ltd.
- Kazuyoshi Yamazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc device
- Patent number 8,675,460
- Issue date Mar 18, 2014
- Sony Corporation
- Yasunori Kitaichi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head and optical information device
- Patent number 8,570,845
- Issue date Oct 29, 2013
- Panasonic Corporation
- Hideki Nakata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup apparatus
- Patent number 8,559,289
- Issue date Oct 15, 2013
- Sanyo Electric Co., Ltd.
- Yuki Koshimizu
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device
- Patent number 8,498,189
- Issue date Jul 30, 2013
- Panasonic Corporation
- Masaharu Fukakusa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head using beam dividing element
- Patent number 8,498,190
- Issue date Jul 30, 2013
- Hitachi Media Electronics Co., Ltd.
- Tomoto Kawamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head device and optical disc apparatus
- Patent number 8,483,022
- Issue date Jul 9, 2013
- Mitsubishi Electric Corporation
- Hironori Nakahara
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and optical disc device
- Patent number 8,446,809
- Issue date May 21, 2013
- SANYO Electric Co., Ltd.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head and optical information device
- Patent number 8,427,928
- Issue date Apr 23, 2013
- Panasonic Corporation
- Hideki Nakata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device
- Patent number 8,400,901
- Issue date Mar 19, 2013
- Sanyo Electric, Co., Ltd.
- Masahito Ogata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical storage focus servo system and method of controlling same
- Patent number 8,339,907
- Issue date Dec 25, 2012
- Oracle International Corporation
- Faramarz Mahnad
- G11 - INFORMATION STORAGE
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
- Patent number 8,270,280
- Issue date Sep 18, 2012
- Sanyo Electric Co., LTD
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc drive having a mechanism to reduce the noise level of...
- Patent number 8,264,922
- Issue date Sep 11, 2012
- Hoya Corporation
- Shuichi Takeuchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Pickup device
- Patent number 8,238,220
- Issue date Aug 7, 2012
- Pioneer Corporation
- Makoto Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Photodetector and optical pickup apparatus including the same
- Patent number 8,213,286
- Issue date Jul 3, 2012
- Sanyo Electric Co., LTD
- Tohru Hotta
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and optical disk driver using the same
- Patent number 8,208,360
- Issue date Jun 26, 2012
- Panasonic Corporation
- Masaharu Fukakusa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc apparatus and method for determining information recor...
- Patent number 8,164,999
- Issue date Apr 24, 2012
- Toshiba Samsung Storage Technology Corporation
- So Ishika
- G11 - INFORMATION STORAGE
Information Patent Grant
Photo diode ic
- Patent number 8,159,908
- Issue date Apr 17, 2012
- Samsung Electronics Co., Ltd.
- Soo-han Park
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head device and optical recording and reading system
- Patent number 8,107,349
- Issue date Jan 31, 2012
- TDK Corporation
- Noriyuki Kawano
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc apparatus and focus control method
- Patent number 8,081,543
- Issue date Dec 20, 2011
- Hitachi-LG Data Storage, Inc.
- Takeshi Imai
- G11 - INFORMATION STORAGE
Information Patent Grant
Drive device and method for controlling the same
- Patent number 8,077,574
- Issue date Dec 13, 2011
- Panasonic Corporation
- Masatoshi Yajima
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup and information device for reducing an influence of...
- Patent number 8,072,868
- Issue date Dec 6, 2011
- Pioneer Corporation
- Akira Kouno
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup apparatus and focal-point adjusting method
- Patent number 8,064,317
- Issue date Nov 22, 2011
- Sanyo Electric Co., LTD
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording and reproducing apparatus having an optical picku...
- Patent number 8,054,732
- Issue date Nov 8, 2011
- Pioneer Corporation
- Shinichi Fujinoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and optical disc device
- Patent number 8,040,779
- Issue date Oct 18, 2011
- Sanyoelectric Co., Ltd.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device
- Patent number 8,036,090
- Issue date Oct 11, 2011
- Hitachi Media Electronics Co., Ltd.
- Shigeharu Kimura
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL PICKUP DEVICE
- Publication number 20140369175
- Publication date Dec 18, 2014
- Kenji OKAMOTO
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS FOR RECORDING AND...
- Publication number 20130229898
- Publication date Sep 5, 2013
- Kazuyoshi YAMAZAKI
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP APPARATUS
- Publication number 20130107693
- Publication date May 2, 2013
- SANYO OPTEC DESIGN CO., LTD.
- Yuki KOSHIMIZU
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP APPARATUS
- Publication number 20130083643
- Publication date Apr 4, 2013
- SANYO Optec Design Co., Ltd.
- Hitoshi OGURA
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL HEAD AND OPTICAL INFORMATION DEVICE
- Publication number 20130010584
- Publication date Jan 10, 2013
- Hideki Nakata
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE
- Publication number 20130003516
- Publication date Jan 3, 2013
- SANYO Optec Design Co., Ltd.
- Masahito Ogata
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE
- Publication number 20120314557
- Publication date Dec 13, 2012
- PANASONIC CORPORATION
- Masaharu Fukakusa
- G11 - INFORMATION STORAGE
Information Patent Application
Optical Disc Device
- Publication number 20120243391
- Publication date Sep 27, 2012
- Sony Computer Entertainment Inc.
- Yasunori KITAICHI
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL HEAD
- Publication number 20120218874
- Publication date Aug 30, 2012
- Tomoto KAWAMURA
- G11 - INFORMATION STORAGE
Information Patent Application
Optical Storage Focus Servo System And Method Of Controlling Same
- Publication number 20120069726
- Publication date Mar 22, 2012
- Oracle International Corporation
- Faramarz Mahnad
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL HEAD DEVICE AND OPTICAL DISC APPARATUS
- Publication number 20110128832
- Publication date Jun 2, 2011
- Hironori Nakahara
- G11 - INFORMATION STORAGE
Information Patent Application
DRIVE DEVICE AND METHOD FOR CONTROLLING THE SAME
- Publication number 20110103209
- Publication date May 5, 2011
- PANASONIC CORPORATION
- Masatoshi YAJIMA
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE
- Publication number 20110075545
- Publication date Mar 31, 2011
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL HEAD APPARATUS, HOLOGRAPHIC OPTICAL DEVICE, OPTICAL INTEGRA...
- Publication number 20110069597
- Publication date Mar 24, 2011
- PANASONIC CORPORATION
- Hiroaki Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS USING THE SAME
- Publication number 20110063967
- Publication date Mar 17, 2011
- Toshiteru NAKAMURA
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISC DEVICE
- Publication number 20110026389
- Publication date Feb 3, 2011
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL HEAD AND OPTICAL INFORMATION DEVICE
- Publication number 20110019524
- Publication date Jan 27, 2011
- Hideki Nakata
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE
- Publication number 20100265809
- Publication date Oct 21, 2010
- Hitachi Media Electronics Co., Ltd.
- Shigeharu KIMURA
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISC DEVICE
- Publication number 20100265810
- Publication date Oct 21, 2010
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP
- Publication number 20100238783
- Publication date Sep 23, 2010
- Nobuhiro Konuma
- G11 - INFORMATION STORAGE
Information Patent Application
EXTRACTION OPTICAL SYSTEM AND OPTICAL HEAD DEVICE INCLUDING THE SAME
- Publication number 20100214903
- Publication date Aug 26, 2010
- Kenya Nakai
- G11 - INFORMATION STORAGE
Information Patent Application
PICKUP DEVICE
- Publication number 20100177619
- Publication date Jul 15, 2010
- Pioneer Corporation
- Makoto Sato
- G11 - INFORMATION STORAGE
Information Patent Application
Optical head device and optical recording and reading system
- Publication number 20100103799
- Publication date Apr 29, 2010
- TDK Corporation
- Noriyuki Kawano
- G11 - INFORMATION STORAGE
Information Patent Application
Optical Pickup Device and Optical Disk Driver Using the Same
- Publication number 20100080105
- Publication date Apr 1, 2010
- PANASONIC CORPORATION
- Masaharu Fukakusa
- G02 - OPTICS
Information Patent Application
SERVO SYSTEM OF OPTICAL DISC AND RELATED SERVO METHOD
- Publication number 20100074066
- Publication date Mar 25, 2010
- Chi-Jui Lee
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP APPARATUS, FOCAL-POINT ADJUSTING METHOD, AND OPTICAL...
- Publication number 20100027405
- Publication date Feb 4, 2010
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP APPARATUS AND FOCAL-POINT ADJUSTING METHOD
- Publication number 20100027404
- Publication date Feb 4, 2010
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP APPARATUS, FOCAL-POINT ADJUSTING METHOD, AND OPTICAL...
- Publication number 20100027386
- Publication date Feb 4, 2010
- SANYO ELECTRIC CO., LTD.
- Kenji Nagatomi
- G11 - INFORMATION STORAGE
Information Patent Application
PHOTOELECTRIC CONVERTING DEVICE, AND OPTICAL DISK APPARATUS AND ADJ...
- Publication number 20090296562
- Publication date Dec 3, 2009
- PANASONIC CORPORATION
- Yasufumi SHIRAKAWA
- G01 - MEASURING TESTING
Information Patent Application
OPTIMAL DETECTION OF TWODOS SIGNALS
- Publication number 20090279409
- Publication date Nov 12, 2009
- Koninklijke Philips Electronics, N.V.
- Alexander Marc Van Der Lee
- G11 - INFORMATION STORAGE

by astigmatic methods

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Diffractive optical element, projection device and measuring device

Recording/reproducing apparatus

Optical disc device and focus jump method

Optical pickup device and optical disc apparatus for recording and...

Optical disc device

Optical head and optical information device

Optical pickup apparatus

Optical pickup device

Optical head using beam dividing element

Optical head device and optical disc apparatus

Optical pickup device and optical disc device

Optical head and optical information device

Optical pickup device

Optical storage focus servo system and method of controlling same

Optical pickup device and optical disk device

Optical pickup device

Optical disc drive having a mechanism to reduce the noise level of...

Pickup device

Photodetector and optical pickup apparatus including the same

Optical pickup device and optical disk driver using the same

Optical disc apparatus and method for determining information recor...

Photo diode ic

Optical head device and optical recording and reading system

Optical disc apparatus and focus control method

Drive device and method for controlling the same

Optical pickup and information device for reducing an influence of...

Optical pickup apparatus and focal-point adjusting method

Optical recording and reproducing apparatus having an optical picku...

Optical pickup device and optical disc device

Optical pickup device

Patents Applicationslast 30 patents

OPTICAL PICKUP DEVICE

OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS FOR RECORDING AND...

OPTICAL PICKUP APPARATUS

OPTICAL PICKUP APPARATUS

OPTICAL HEAD AND OPTICAL INFORMATION DEVICE

OPTICAL PICKUP DEVICE

OPTICAL PICKUP DEVICE

Optical Disc Device

OPTICAL HEAD

Optical Storage Focus Servo System And Method Of Controlling Same

OPTICAL HEAD DEVICE AND OPTICAL DISC APPARATUS

DRIVE DEVICE AND METHOD FOR CONTROLLING THE SAME

OPTICAL PICKUP DEVICE

OPTICAL HEAD APPARATUS, HOLOGRAPHIC OPTICAL DEVICE, OPTICAL INTEGRA...

OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS USING THE SAME

OPTICAL PICKUP DEVICE AND OPTICAL DISC DEVICE

OPTICAL HEAD AND OPTICAL INFORMATION DEVICE

OPTICAL PICKUP DEVICE

OPTICAL PICKUP DEVICE AND OPTICAL DISC DEVICE

OPTICAL PICKUP

EXTRACTION OPTICAL SYSTEM AND OPTICAL HEAD DEVICE INCLUDING THE SAME

PICKUP DEVICE

Optical head device and optical recording and reading system

Optical Pickup Device and Optical Disk Driver Using the Same

SERVO SYSTEM OF OPTICAL DISC AND RELATED SERVO METHOD

OPTICAL PICKUP APPARATUS, FOCAL-POINT ADJUSTING METHOD, AND OPTICAL...

OPTICAL PICKUP APPARATUS AND FOCAL-POINT ADJUSTING METHOD

OPTICAL PICKUP APPARATUS, FOCAL-POINT ADJUSTING METHOD, AND OPTICAL...

PHOTOELECTRIC CONVERTING DEVICE, AND OPTICAL DISK APPARATUS AND ADJ...

OPTIMAL DETECTION OF TWODOS SIGNALS