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Junsaku Nakajima
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Kashihara-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical recording medium recorded with information in depth directi...
Patent number
7,580,329
Issue date
Aug 25, 2009
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk having pits of different depths formed therein, optica...
Patent number
7,113,460
Issue date
Sep 26, 2006
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc having pits of different depth formed therein, optical...
Patent number
7,072,251
Issue date
Jul 4, 2006
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium recorded with information in depth directi...
Patent number
7,050,383
Issue date
May 23, 2006
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disc having pits of different depth formed therein, optical...
Patent number
6,760,299
Issue date
Jul 6, 2004
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk device
Patent number
6,728,183
Issue date
Apr 27, 2004
Sharp Kabushiki Kaisha
Hitoshi Takeuchi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium and recording and reproducing meth...
Patent number
6,665,235
Issue date
Dec 16, 2003
Sharp Kabushiki Kaisha
Yoshiteru Murakami
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Magneto-optical head device having integrated auxiliary lens and ma...
Patent number
6,556,517
Issue date
Apr 29, 2003
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium having prepits deeper than grooves
Patent number
6,532,208
Issue date
Mar 11, 2003
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium
Patent number
6,487,165
Issue date
Nov 26, 2002
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording method using the relation of beam diamete...
Patent number
6,483,785
Issue date
Nov 19, 2002
Yoshiteru Murakami
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium, media tracking method and recording/repro...
Patent number
6,438,098
Issue date
Aug 20, 2002
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical device and recording/reproducing method
Patent number
6,396,775
Issue date
May 28, 2002
Sharp Kabushiki Kaisha
Junsaku Nakajima
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Thermomagnetic recording and reproducing head having a heating head...
Patent number
6,317,280
Issue date
Nov 13, 2001
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium having intermediate layer of in pl...
Patent number
6,272,077
Issue date
Aug 7, 2001
Sharp Kabushiki Kaisha
Akira Takahashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium and recording and reproducing meth...
Patent number
6,261,707
Issue date
Jul 17, 2001
Sharp Kabushiki Kaisha
Yoshiteru Murakami
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium by magnetic field modulation with...
Patent number
6,212,137
Issue date
Apr 3, 2001
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium having intermediate layer of in-pl...
Patent number
6,147,939
Issue date
Nov 14, 2000
Sharp Kabushiki Kaisha
Akira Takahashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and information recording-reproduction me...
Patent number
6,143,436
Issue date
Nov 7, 2000
Sharp Kabushiki Kaisha
Junsaku Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Magneto-optical recording medium
Patent number
6,042,954
Issue date
Mar 28, 2000
Sharp Kabushiki Kaisha
Junji Hirokane
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium
Patent number
5,989,705
Issue date
Nov 23, 1999
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Arrangement of magneto-optical recording medium which capable of re...
Patent number
5,777,953
Issue date
Jul 7, 1998
Sharp Kabushiki Kaishia
Junji Hirokane
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium and method for reproducing from same
Patent number
5,757,734
Issue date
May 26, 1998
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium
Patent number
5,707,727
Issue date
Jan 13, 1998
Sharp Kabushiki Kaisha
Akira Takahashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium
Patent number
5,657,299
Issue date
Aug 12, 1997
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and information recording-reproduction me...
Patent number
5,656,385
Issue date
Aug 12, 1997
Sharp Kabushiki Kaisha
Junsaku Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Magneto-optical recording medium and method of reproducing magneto-...
Patent number
5,637,394
Issue date
Jun 10, 1997
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto optical memory device
Patent number
5,631,096
Issue date
May 20, 1997
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical disk and the reproducing method thereof
Patent number
5,615,182
Issue date
Mar 25, 1997
Sharp Kabushiki Kaisha
Yoshiteru Murakami
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording medium
Patent number
5,595,805
Issue date
Jan 21, 1997
Sharp Kabushiki Kaisha
Junichiro Nakayama
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
INFORMATION RECORDING MEDIUM, RECORDING/REPRODUCING DEVICE, RECORDI...
Publication number
20120327755
Publication date
Dec 27, 2012
Sharp Kabushiki Kaisha
Takashi Arimoto
G11 - INFORMATION STORAGE
Information
Patent Application
INFORMATION RECORDING MEDIUM, RECORDING/REPRODUCING DEVICE, RECORDI...
Publication number
20120127840
Publication date
May 24, 2012
Sharp Kabushiki Kaisha
Takashi Arimoto
G11 - INFORMATION STORAGE
Information
Patent Application
Optical recording medium recorded with information in depth directi...
Publication number
20070177489
Publication date
Aug 2, 2007
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disc having pits of different depth formed therein, optical...
Publication number
20040202096
Publication date
Oct 14, 2004
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disc having pits of different depth formed therein, optical...
Publication number
20040057350
Publication date
Mar 25, 2004
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Application
Magneto-optical recording medium and recording and reproducing meth...
Publication number
20030081510
Publication date
May 1, 2003
Sharp Kabushiki Kaisha
Yoshiteru Murakami
B60 - VEHICLES IN GENERAL
Information
Patent Application
Optical recording medium having prepits deeper than grooves
Publication number
20020006106
Publication date
Jan 17, 2002
Sharp Kabushiki Kaisha
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Application
Optical recording medium recorded with information in depth directi...
Publication number
20020001274
Publication date
Jan 3, 2002
Junsaku Nakajima
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disk having pits of different depths formed therein, optica...
Publication number
20010036134
Publication date
Nov 1, 2001
Junsaku Nakajima
G11 - INFORMATION STORAGE