Haruhiko Izumi

Person

Nakahara-ku, Kawasaki-shi, Kanagawa 211, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording medium and magnetic recording apparatus
- Patent number 8,842,392
- Issue date Sep 23, 2014
- Kabushiki Kaisha Toshiba
- Kazuto Kashiwagi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording apparatus and recording method of magnetic recor...
- Patent number 8,643,970
- Issue date Feb 4, 2014
- Kabushiki Kaisha Toshiba
- Naoki Tagami
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Discrete track recording method, storage apparatus and method of pr...
- Patent number 7,430,086
- Issue date Sep 30, 2008
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical head device
- Patent number 6,741,528
- Issue date May 25, 2004
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk apparatus and galvano-mirror used for the same
- Patent number 6,507,543
- Issue date Jan 14, 2003
- Fujitsu Limited
- Tohru Fujimaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Data writing/reading apparatus
- Patent number 6,341,102
- Issue date Jan 22, 2002
- Fujitsu Limited
- Tadashi Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Laser power control in information recording device
- Patent number 6,320,832
- Issue date Nov 20, 2001
- Fujitsu Limited
- Yoshihiro Nakao
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head unit for optical disk apparatus having both focus cont...
- Patent number 6,272,079
- Issue date Aug 7, 2001
- Fujitsu Limited
- Nobuyuki Kanto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium and method of using same
- Patent number 6,103,407
- Issue date Aug 15, 2000
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical medium and reproducing device for the same
- Patent number 6,072,754
- Issue date Jun 6, 2000
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium and method of reproducing informat...
- Patent number 6,030,716
- Issue date Feb 29, 2000
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Head driving apparatus and optical disk apparatus
- Patent number 6,026,064
- Issue date Feb 15, 2000
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
PRML readout system for optical disk
- Patent number 5,986,987
- Issue date Nov 16, 1999
- Fujitsu Limited
- Masakazu Taguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical medium and reproducing device for the same
- Patent number 5,981,016
- Issue date Nov 9, 1999
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium with magnetic film having large ma...
- Patent number 5,876,858
- Issue date Mar 2, 1999
- Tomonori Ikeya
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium and method of using same
- Patent number 5,871,855
- Issue date Feb 16, 1999
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording method and apparatus to be used in the me...
- Patent number 5,859,813
- Issue date Jan 12, 1999
- Fujitsu Limited
- Akihiro Itakura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optic disk recording system having improved duty ratio cont...
- Patent number 5,854,775
- Issue date Dec 29, 1998
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Data readout system for optical disk having maximum likehood data d...
- Patent number 5,850,377
- Issue date Dec 15, 1998
- Fujitsu Limited
- Masakazu Taguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium having a non-volatile identification code...
- Patent number 5,812,501
- Issue date Sep 22, 1998
- Fujitsu Limited
- Mineo Moribe
- G11 - INFORMATION STORAGE
Information Patent Grant
Edge position data reproduction apparatus
- Patent number 5,745,464
- Issue date Apr 28, 1998
- Fujitsu Limited
- Masakazu Taguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetooptical record medium having adjacent header signals
- Patent number 5,740,154
- Issue date Apr 14, 1998
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording medium and method of reproducing informat...
- Patent number 5,691,072
- Issue date Nov 25, 1997
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Data readout system for optical disk having maximum likelihood data...
- Patent number 5,680,380
- Issue date Oct 21, 1997
- Fujitsu Limited
- Masakazu Taguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Data reproduction method and apparatus
- Patent number 5,675,565
- Issue date Oct 7, 1997
- Fujitsu Limited
- Masakazu Taguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optic recording medium suited for mark edge recording syste...
- Patent number 5,663,936
- Issue date Sep 2, 1997
- Fujitsu Limited
- Tsutomu Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium having a non-volatile identification code...
- Patent number 5,661,703
- Issue date Aug 26, 1997
- Fujitsu Limited
- Mineo Moribe
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head having light blocking means positioned in front of a d...
- Patent number 5,610,895
- Issue date Mar 11, 1997
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Data reproduction system synchronized by recording data
- Patent number 5,598,392
- Issue date Jan 28, 1997
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optic recording method and apparatus utilizing a two-state...
- Patent number 5,428,594
- Issue date Jun 27, 1995
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING APPARATUS
- Publication number 20120307403
- Publication date Dec 6, 2012
- Kabushiki Kaisha Toshiba
- Kazuto KASHIWAGI
- B82 - NANO-TECHNOLOGY
Information Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC READING APPARATUS
- Publication number 20120229929
- Publication date Sep 13, 2012
- Kabushiki Kaisha Toshiba
- Haruhiko IZUMI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING APPARATUS AND RECORDING METHOD OF MAGNETIC RECOR...
- Publication number 20120194937
- Publication date Aug 2, 2012
- Kabushiki Kaisha Toshiba
- Naoki TAGAMI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING APPARATUS
- Publication number 20120147497
- Publication date Jun 14, 2012
- Kabushiki Kaisha Toshiba
- Haruhiko IZUMI
- G11 - INFORMATION STORAGE
Information Patent Application
INFORMATION STORAGE MEDIUM AND INFORMATION STORAGE APPARATUS
- Publication number 20100123973
- Publication date May 20, 2010
- Fujitsu Limited
- Yasuyuki Ozawa
- G11 - INFORMATION STORAGE
Information Patent Application
MEDIA ACCESS METHOD AND MAGNETIC STORAGE APPARATUS
- Publication number 20100103554
- Publication date Apr 29, 2010
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Application
INFORMATION RECORDING MEDIUM
- Publication number 20090237829
- Publication date Sep 24, 2009
- Fujitsu Limited
- Yasuyuki Ozawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING APPARATUS
- Publication number 20090207523
- Publication date Aug 20, 2009
- Fujitsu Limited
- Takayuki Kawabe
- G11 - INFORMATION STORAGE
Information Patent Application
Clock extraction method for patterned medium, clock extraction circ...
- Publication number 20080074773
- Publication date Mar 27, 2008
- Fujitsu Limited
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Application
Clock extraction method for patterned medium and circuit thereof
- Publication number 20080074774
- Publication date Mar 27, 2008
- Fujitsu Limited
- Haruhiko Izumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Magnetic recording medium, magnetic recording apparatus, and servo...
- Publication number 20070211368
- Publication date Sep 13, 2007
- FUJITSU LIMITED
- Motomichi Shibano
- G11 - INFORMATION STORAGE
Information Patent Application
Discrete track recording method, storage apparatus and method of pr...
- Publication number 20070201157
- Publication date Aug 30, 2007
- FUJITSU LIMITED
- Haruhiko Izumi
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto-optical recording and reproducing apparatus
- Publication number 20030123370
- Publication date Jul 3, 2003
- FUJITSU LIMITED
- Yoshihiro Nakao
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk apparatus and galvano-mirror used for the same
- Publication number 20010014059
- Publication date Aug 16, 2001
- FUJITSU LIMITED
- Tohru Fujimaki
- G11 - INFORMATION STORAGE

Haruhiko Izumi

Person

Patents Grantslast 30 patents

Magnetic recording medium and magnetic recording apparatus

Magnetic recording apparatus and recording method of magnetic recor...

Discrete track recording method, storage apparatus and method of pr...

Magneto-optical head device

Optical disk apparatus and galvano-mirror used for the same

Data writing/reading apparatus

Laser power control in information recording device

Optical head unit for optical disk apparatus having both focus cont...

Magneto-optical recording medium and method of using same

Magneto-optical medium and reproducing device for the same

Magneto-optical recording medium and method of reproducing informat...

Head driving apparatus and optical disk apparatus

PRML readout system for optical disk

Magneto-optical medium and reproducing device for the same

Magneto-optical recording medium with magnetic film having large ma...

Magneto-optical recording medium and method of using same

Magneto-optical recording method and apparatus to be used in the me...

Magneto-optic disk recording system having improved duty ratio cont...

Data readout system for optical disk having maximum likehood data d...

Optical recording medium having a non-volatile identification code...

Edge position data reproduction apparatus

Magnetooptical record medium having adjacent header signals

Magneto-optical recording medium and method of reproducing informat...

Data readout system for optical disk having maximum likelihood data...

Data reproduction method and apparatus

Magneto-optic recording medium suited for mark edge recording syste...

Optical recording medium having a non-volatile identification code...

Optical head having light blocking means positioned in front of a d...

Data reproduction system synchronized by recording data

Magneto-optic recording method and apparatus utilizing a two-state...

Patents Applicationslast 30 patents

MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING APPARATUS

MAGNETIC RECORDING MEDIUM AND MAGNETIC READING APPARATUS

MAGNETIC RECORDING APPARATUS AND RECORDING METHOD OF MAGNETIC RECOR...

MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING APPARATUS

INFORMATION STORAGE MEDIUM AND INFORMATION STORAGE APPARATUS

MEDIA ACCESS METHOD AND MAGNETIC STORAGE APPARATUS

INFORMATION RECORDING MEDIUM

MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING APPARATUS

Clock extraction method for patterned medium, clock extraction circ...

Clock extraction method for patterned medium and circuit thereof

Magnetic recording medium, magnetic recording apparatus, and servo...

Discrete track recording method, storage apparatus and method of pr...

Magneto-optical recording and reproducing apparatus

Optical disk apparatus and galvano-mirror used for the same