Stepped phase plates

Industry

CPC
G11B7/1367

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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

G11B7/1367Stepped phase plates

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Optical memory, optical diffraction element, and recording method
- Patent number 12,142,307
- Issue date Nov 12, 2024
- Fujikura Ltd.
- Yuichiro Kunai
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device and optical drive device
- Patent number 10,049,695
- Issue date Aug 14, 2018
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Masatoshi Yajima
- G02 - OPTICS
Information Patent Grant
Optical element and optical head apparatus including the same
- Patent number 9,001,635
- Issue date Apr 7, 2015
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Kazuhiro Minami
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens for optical pickup device, and optical pickup device
- Patent number 8,873,166
- Issue date Oct 28, 2014
- Konica Minolta Advanced Layers, Inc.
- Kiyono Tateyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information device, optical disc driving device, optical in...
- Patent number 8,837,264
- Issue date Sep 16, 2014
- Panasonic Corporation
- Keiichi Matsuzaki
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Objective lens, optical head, optical disk device, and information...
- Patent number 8,797,834
- Issue date Aug 5, 2014
- Panasonic Corporation
- Fumitomo Yamasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens element and optical pickup device
- Patent number 8,767,518
- Issue date Jul 1, 2014
- Panasonic Corporation
- Katsuhiko Hayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens element
- Patent number 8,760,989
- Issue date Jun 24, 2014
- Panasonic Corporation
- Katsuhiko Hayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens for optical pickup apparatus, optical pickup apparat...
- Patent number 8,760,990
- Issue date Jun 24, 2014
- Konica Minolta, Inc.
- Hideki Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical element
- Patent number 8,755,259
- Issue date Jun 17, 2014
- Panasonic Corporation
- Kuzuhiro Minami
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical element and objective lens through which a plurality of lig...
- Patent number 8,705,331
- Issue date Apr 22, 2014
- Hoya Corporation
- Koichi Maruyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens element and optical head device including the same
- Patent number 8,681,592
- Issue date Mar 25, 2014
- Panasonic Corporation
- Kazuhiro Minami
- G11 - INFORMATION STORAGE
Information Patent Grant
Light source device, observation device, and processing device
- Patent number 8,553,733
- Issue date Oct 8, 2013
- Hamamatsu Photonics K.K.
- Taro Ando
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical pickup device and optical disc apparatus
- Patent number 8,520,486
- Issue date Aug 27, 2013
- Hitachi Media Electronics Co., Ltd.
- Kazuyoshi Yamazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc device
- Patent number 8,488,426
- Issue date Jul 16, 2013
- Hitachi Consumer Electronics Co., Ltd.
- Yukinobu Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens, optical pickup apparatus using the same, and method...
- Patent number 8,488,434
- Issue date Jul 16, 2013
- Sanyo Electric Co., Ltd.
- Mitsuru Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head device, optical information device and information pro...
- Patent number 8,483,031
- Issue date Jul 9, 2013
- Panasonic Corporation
- Yoshiaki Komma
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording/reproducing apparatus and objective o...
- Patent number 8,483,033
- Issue date Jul 9, 2013
- Hoya Corporation
- Naoki Yamagata
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup and optical disc device including the same
- Patent number 8,477,583
- Issue date Jul 2, 2013
- Panasonic Corporation
- Seiji Nishiwaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective optical element and optical pickup device
- Patent number 8,472,301
- Issue date Jun 25, 2013
- Konica Minolta Opto, INC
- Kantarou Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens and optical pick-up device using the same
- Patent number 8,441,900
- Issue date May 14, 2013
- Sanyo Electric Co., Ltd.
- Mitsuru Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens, optical head, optical disk apparatus, and informati...
- Patent number 8,432,782
- Issue date Apr 30, 2013
- Panasonic Corporation
- Fumitomo Yamasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens for optical pickup device, optical pickup device, an...
- Patent number 8,395,982
- Issue date Mar 12, 2013
- Konica Minolta Opto, INC
- Shogo Yamamoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Objective lens and optical pickup apparatus
- Patent number 8,385,181
- Issue date Feb 26, 2013
- Konica Minolta Opto, INC
- Mitsuru Mimori
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective lens and optical pickup apparatus using the same
- Patent number 8,345,530
- Issue date Jan 1, 2013
- Sanyo Electric Co., Ltd.
- Mitsuru Ito
- G11 - INFORMATION STORAGE
Information Patent Grant
Objective optical element and optical pickup device
- Patent number 8,339,923
- Issue date Dec 25, 2012
- Konica Minolta Opto, INC
- Kentarou Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Complex objective lens, optical head, optical information apparatus...
- Patent number 8,325,582
- Issue date Dec 4, 2012
- Panasonic Corporation
- Yoshiaki Komma
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information recording/reproducing apparatus and objective l...
- Patent number 8,270,279
- Issue date Sep 18, 2012
- Hoya Corporation
- Satoshi Inoue
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup and optical information processing device
- Patent number 8,259,555
- Issue date Sep 4, 2012
- Ricoh Company, Ltd.
- Yukiko Hamano
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for reading high density optical information
- Patent number 8,243,574
- Issue date Aug 14, 2012
- Commissariat a l'Energie Atomique
- Salim Mimouni
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL MEMORY, OPTICAL DIFFRACTION ELEMENT, AND RECORDING METHOD
- Publication number 20240038264
- Publication date Feb 1, 2024
- FUJIKURA LTD.
- Yuichiro Kunai
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DRIVE DEVICE
- Publication number 20170301369
- Publication date Oct 19, 2017
- Panasonic Intellectual Property Management Co., Ltd.
- MASATOSHI YAJIMA
- G02 - OPTICS
Information Patent Application
OPTICAL ELEMENT AND OPTICAL HEAD APPARATUS INCLUDING THE SAME
- Publication number 20140293766
- Publication date Oct 2, 2014
- Kazuhiro MINAMI
- G11 - INFORMATION STORAGE
Information Patent Application
OBJECTIVE LENS ELEMENT
- Publication number 20140247493
- Publication date Sep 4, 2014
- PANASONIC CORPORATION
- Katsuhiko Hayashi
- G02 - OPTICS
Information Patent Application
OBJECTIVE LENS ELEMENT AND OPTICAL HEAD DEVICE INCLUDING THE SAME
- Publication number 20140146653
- Publication date May 29, 2014
- PANASONIC CORPORATION
- Kazuhiro Minami
- G02 - OPTICS
Information Patent Application
OPTICAL ELEMENT
- Publication number 20140098656
- Publication date Apr 10, 2014
- PANASONIC CORPORATION
- Kazuhiro MINAMI
- G02 - OPTICS
Information Patent Application
OPTICAL INFORMATION DEVICE, OPTICAL DISC DRIVING DEVICE, OPTICAL IN...
- Publication number 20140010058
- Publication date Jan 9, 2014
- Keiichi Matsuzaki
- B82 - NANO-TECHNOLOGY
Information Patent Application
Objective Lens for Optical Pickup Device, Optical Pickup Device, an...
- Publication number 20130229902
- Publication date Sep 5, 2013
- Hideki Tanaka
- G02 - OPTICS
Information Patent Application
Objective Lens for Optical Pickup Device, and Optical Pickup Device
- Publication number 20130182337
- Publication date Jul 18, 2013
- KONICA MINOLTA ADVANCED LAYERS, INC.
- Kiyono Tateyama
- G02 - OPTICS
Information Patent Application
OPTICAL PICKUP AND OPTICAL DISC DEVICE INCLUDING THE SAME
- Publication number 20130107691
- Publication date May 2, 2013
- PANASONIC CORPORATION
- Seiji Nishiwaki
- G02 - OPTICS
Information Patent Application
OBJECTIVE OPTICAL ELEMENT AND OPTICAL PICKUP DEVICE
- Publication number 20130100792
- Publication date Apr 25, 2013
- Konica Minolta Opto, Inc.
- Kentarou NAKAMURA
- G02 - OPTICS
Information Patent Application
OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK DEVICE, AND INFORMATION...
- Publication number 20130064057
- Publication date Mar 14, 2013
- Fumitomo Yamasaki
- G02 - OPTICS
Information Patent Application
OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND OBJECTIVE O...
- Publication number 20130016598
- Publication date Jan 17, 2013
- HOYA CORPORATION
- Naoki YAMAGATA
- G11 - INFORMATION STORAGE
Information Patent Application
Method for designing objective lens and objective lens
- Publication number 20130003192
- Publication date Jan 3, 2013
- SANYO OPTEC DESIGN CO., LTD.
- Mitsuru ITO
- G02 - OPTICS
Information Patent Application
DISC DEVICE
- Publication number 20120250481
- Publication date Oct 4, 2012
- Hitachi Consumer Electronics Co., Ltd.
- Yukinobu TANAKA
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS
- Publication number 20120213046
- Publication date Aug 23, 2012
- Kazuyoshi YAMAZAKI
- G11 - INFORMATION STORAGE
Information Patent Application
Objective Lens Element and Optical Head Device Including the Same
- Publication number 20120207008
- Publication date Aug 16, 2012
- PANASONIC CORPORATION
- Kazuhiro Minami
- G02 - OPTICS
Information Patent Application
OBJECTIVE LENS, OPTICAL PICKUP APPARATUS USING THE SAME, AND METHOD...
- Publication number 20120195181
- Publication date Aug 2, 2012
- Sanyo Optec Design Co., Ltd.
- Mitsuru Ito
- G11 - INFORMATION STORAGE
Information Patent Application
OBJECTIVE LENS AND OPTICAL PICK-UP DEVICE USING THE SAME
- Publication number 20120182847
- Publication date Jul 19, 2012
- Sanyo Optec Design Co., Ltd.
- Mitsuru Ito
- G11 - INFORMATION STORAGE
Information Patent Application
OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK APPARATUS, AND INFORMATI...
- Publication number 20120182852
- Publication date Jul 19, 2012
- Fumitomo Yamasaki
- G02 - OPTICS
Information Patent Application
Objective Lens for Optical Pickup Device, Optical Pickup Device, an...
- Publication number 20120182854
- Publication date Jul 19, 2012
- Konica Minolta Opto, Inc.
- Shogo Yamamoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
OPTICAL HEAD DEVICE, OPTICAL INFORMATION DEVICE AND INFORMATION PRO...
- Publication number 20120170431
- Publication date Jul 5, 2012
- Yoshiaki Komma
- G11 - INFORMATION STORAGE
Information Patent Application
Objective Lens Element
- Publication number 20120170122
- Publication date Jul 5, 2012
- PANASONIC CORPORATION
- Katsuhiko Hayashi
- G02 - OPTICS
Information Patent Application
Optical Element and Optical Pickup Device
- Publication number 20120163157
- Publication date Jun 28, 2012
- PANASONIC CORPORATION
- Katsuhiko Hayashi
- G02 - OPTICS
Information Patent Application
OPTICAL PICKUP APPARATUS AND OBJECTIVE OPTICAL UNIT
- Publication number 20120155241
- Publication date Jun 21, 2012
- Konika Minolta Opto, Inc.
- Kohei OTA
- G11 - INFORMATION STORAGE
Information Patent Application
OBJECTIVE LENS AND OPTICAL PICKUP APPARATUS USING THE SAME
- Publication number 20120134255
- Publication date May 31, 2012
- Sanyo Optec Design Co., Ltd.
- Mitsuru Ito
- G11 - INFORMATION STORAGE
Information Patent Application
Objective Lens Element and Optical Pickup Device
- Publication number 20120075978
- Publication date Mar 29, 2012
- PANASONIC CORPORATION
- Katsuhiko Hayashi
- G11 - INFORMATION STORAGE
Information Patent Application
OPTICAL ELEMENT AND OBJECTIVE LENS THROUGH WHICH A PLURALITY OF LIG...
- Publication number 20120075979
- Publication date Mar 29, 2012
- HOYA CORPORATION
- Koichi MARUYAMA
- G02 - OPTICS
Information Patent Application
Objective Optical Element and Optical Pickup Device
- Publication number 20110317539
- Publication date Dec 29, 2011
- Kentarou Nakamura
- G02 - OPTICS
Information Patent Application
LAMINATED WAVE PLATE AND OPTICAL DEVICE USING THE SAME
- Publication number 20110242959
- Publication date Oct 6, 2011
- EPSON TOYOCOM CORPORATION
- Masayuki Oto
- G02 - OPTICS

Stepped phase plates

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Optical memory, optical diffraction element, and recording method

Optical pickup device and optical drive device

Optical element and optical head apparatus including the same

Objective lens for optical pickup device, and optical pickup device

Optical information device, optical disc driving device, optical in...

Objective lens, optical head, optical disk device, and information...

Objective lens element and optical pickup device

Objective lens element

Objective lens for optical pickup apparatus, optical pickup apparat...

Optical element

Optical element and objective lens through which a plurality of lig...

Objective lens element and optical head device including the same

Light source device, observation device, and processing device

Optical pickup device and optical disc apparatus

Disc device

Objective lens, optical pickup apparatus using the same, and method...

Optical head device, optical information device and information pro...

Optical information recording/reproducing apparatus and objective o...

Optical pickup and optical disc device including the same

Objective optical element and optical pickup device

Objective lens and optical pick-up device using the same

Objective lens, optical head, optical disk apparatus, and informati...

Objective lens for optical pickup device, optical pickup device, an...

Objective lens and optical pickup apparatus

Objective lens and optical pickup apparatus using the same

Objective optical element and optical pickup device

Complex objective lens, optical head, optical information apparatus...

Optical information recording/reproducing apparatus and objective l...

Optical pickup and optical information processing device

Method and system for reading high density optical information

Patents Applicationslast 30 patents

OPTICAL MEMORY, OPTICAL DIFFRACTION ELEMENT, AND RECORDING METHOD

OPTICAL PICKUP DEVICE AND OPTICAL DRIVE DEVICE

OPTICAL ELEMENT AND OPTICAL HEAD APPARATUS INCLUDING THE SAME

OBJECTIVE LENS ELEMENT

OBJECTIVE LENS ELEMENT AND OPTICAL HEAD DEVICE INCLUDING THE SAME

OPTICAL ELEMENT

OPTICAL INFORMATION DEVICE, OPTICAL DISC DRIVING DEVICE, OPTICAL IN...

Objective Lens for Optical Pickup Device, Optical Pickup Device, an...

Objective Lens for Optical Pickup Device, and Optical Pickup Device

OPTICAL PICKUP AND OPTICAL DISC DEVICE INCLUDING THE SAME

OBJECTIVE OPTICAL ELEMENT AND OPTICAL PICKUP DEVICE

OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK DEVICE, AND INFORMATION...

OPTICAL INFORMATION RECORDING/REPRODUCING APPARATUS AND OBJECTIVE O...

Method for designing objective lens and objective lens

DISC DEVICE

OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS

Objective Lens Element and Optical Head Device Including the Same

OBJECTIVE LENS, OPTICAL PICKUP APPARATUS USING THE SAME, AND METHOD...

OBJECTIVE LENS AND OPTICAL PICK-UP DEVICE USING THE SAME

OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK APPARATUS, AND INFORMATI...

Objective Lens for Optical Pickup Device, Optical Pickup Device, an...

OPTICAL HEAD DEVICE, OPTICAL INFORMATION DEVICE AND INFORMATION PRO...

Objective Lens Element

Optical Element and Optical Pickup Device

OPTICAL PICKUP APPARATUS AND OBJECTIVE OPTICAL UNIT

OBJECTIVE LENS AND OPTICAL PICKUP APPARATUS USING THE SAME

Objective Lens Element and Optical Pickup Device

OPTICAL ELEMENT AND OBJECTIVE LENS THROUGH WHICH A PLURALITY OF LIG...

Objective Optical Element and Optical Pickup Device

LAMINATED WAVE PLATE AND OPTICAL DEVICE USING THE SAME