Takehiko Sekine

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Disk recording apparatus and disk recording method
- Patent number 7,376,057
- Issue date May 20, 2008
- Hitachi, Ltd.
- Hiroshi Hirayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk recording apparatus and optical disk recording method
- Patent number 7,349,302
- Issue date Mar 25, 2008
- Hitachi, Ltd.
- Yutaka Nagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk recording apparatus and disk recording method
- Patent number 7,215,612
- Issue date May 8, 2007
- Hitachi, Ltd.
- Hiroshi Hirayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk cartridge ejection mechanism and method
- Patent number 7,023,654
- Issue date Apr 4, 2006
- Konica Corporation
- Takehiko Sekine
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording and reproducing apparatus for updating the wa...
- Patent number 6,954,410
- Issue date Oct 11, 2005
- Hitachi, Ltd.
- Takashi Hoshino
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording and reproducing apparatus having semiconducto...
- Patent number 6,442,118
- Issue date Aug 27, 2002
- Hitachi, Ltd.
- Takashi Hoshino
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for recording and reproducing information by pre-pits detection
- Patent number 6,295,258
- Issue date Sep 25, 2001
- Hitachi, Ltd.
- Toshimitsu Kaku
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for recording/reproducing by pre-pits detection
- Patent number 6,188,654
- Issue date Feb 13, 2001
- Htachi, Ltd.
- Toshimitsu Kaku
- G11 - INFORMATION STORAGE
Information Patent Grant
Data recording/reproducing device
- Patent number 5,523,991
- Issue date Jun 4, 1996
- Hitachi, Ltd.
- Takuya Mizokami
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording/reproducing device and method in which a resy...
- Patent number 5,519,683
- Issue date May 21, 1996
- Hitachi, Ltd.
- Takuya Mizokami
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording/reproducing device and method for recording/r...
- Patent number 5,383,171
- Issue date Jan 17, 1995
- Hitachi, Ltd.
- Takuya Mizokami
- G11 - INFORMATION STORAGE
Information Patent Grant
Photo-magnetic disk driving apparatus
- Patent number 5,258,965
- Issue date Nov 2, 1993
- Konica Corporation
- Takehiko Sekine
- G11 - INFORMATION STORAGE
Information Patent Grant
Data recording/reproducing device
- Patent number 5,229,986
- Issue date Jul 20, 1993
- Hitachi, Ltd.
- Takuya Mizokami
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Disk recording apparatus and disk recording method
- Publication number 20070121459
- Publication date May 31, 2007
- Hitachi, Ltd
- Hiroshi Hirayama
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording and reproducing apparatus
- Publication number 20050180280
- Publication date Aug 18, 2005
- Hitachi Ltd.
- Takashi Hoshino
- G11 - INFORMATION STORAGE
Information Patent Application
Disk recording apparatus and disk recording method
- Publication number 20050025006
- Publication date Feb 3, 2005
- Hitachi, Ltd
- Hiroshi Hirayama
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk recording apparatus and optical disk recording method
- Publication number 20040179446
- Publication date Sep 16, 2004
- Hitachi, Ltd
- Yutaka Nagai
- G11 - INFORMATION STORAGE
Information Patent Application
Disk cartridge ejection mechanism and method
- Publication number 20040027714
- Publication date Feb 12, 2004
- KONICA CORPORATION
- Takehiko Sekine
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording and reproducing apparatus
- Publication number 20020186628
- Publication date Dec 12, 2002
- HITACHI, LTD.
- Takashi Hoshino
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC FIELD GENERATOR FOR MAGNETO-OPTICS MEMORY APPARATUS WITH R...
- Publication number 20010008501
- Publication date Jul 19, 2001
- TAKEHIKO SEKINE
- G11 - INFORMATION STORAGE

Takehiko Sekine

Person

Patents Grantslast 30 patents

Disk recording apparatus and disk recording method

Optical disk recording apparatus and optical disk recording method

Disk recording apparatus and disk recording method

Disk cartridge ejection mechanism and method

Information recording and reproducing apparatus for updating the wa...

Information recording and reproducing apparatus having semiconducto...

Method for recording and reproducing information by pre-pits detection

Method and apparatus for recording/reproducing by pre-pits detection

Data recording/reproducing device

Information recording/reproducing device and method in which a resy...

Information recording/reproducing device and method for recording/r...

Photo-magnetic disk driving apparatus

Data recording/reproducing device

Patents Applicationslast 30 patents

Disk recording apparatus and disk recording method

Information recording and reproducing apparatus

Disk recording apparatus and disk recording method

Optical disk recording apparatus and optical disk recording method

Disk cartridge ejection mechanism and method

Information recording and reproducing apparatus

MAGNETIC FIELD GENERATOR FOR MAGNETO-OPTICS MEMORY APPARATUS WITH R...