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Isao Nunokawa
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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Tapered write head for MAMR
Patent number
9,135,933
Issue date
Sep 15, 2015
HGST Netherlands B.V.
Isao Nunokawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording head and method of manufacturing t...
Patent number
9,047,885
Issue date
Jun 2, 2015
HGST Netherlands B.V.
Mikito Sugiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Heat sink for a spin torque oscillator (STO) in microwave assisted...
Patent number
8,995,088
Issue date
Mar 31, 2015
HGST Netherlands B.V.
Carl Boone
G11 - INFORMATION STORAGE
Information
Patent Grant
Shield structure for reducing the magnetic induction rate of the tr...
Patent number
8,830,623
Issue date
Sep 9, 2014
HGST Netherlands B.V.
Tomoaki Hamasaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording head and magnetic recording apparatus
Patent number
8,824,103
Issue date
Sep 2, 2014
Hitachi, Ltd.
Masato Shiimoto
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head with electro lapping guide
Patent number
8,351,162
Issue date
Jan 8, 2013
HGST Netherlands B.V.
Kimitoshi Etoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular recording magnetic head with a varying interval betwe...
Patent number
8,351,154
Issue date
Jan 8, 2013
Hitachi Global Storage Technologies Netherlands B.V.
Kimitoshi Etoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording head, method of manufacturing the same, and magn...
Patent number
8,351,153
Issue date
Jan 8, 2013
Hitachi Global Storage Technologies Netherlands B.V.
Isao Nunokawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording head having a magnetic layer overh...
Patent number
8,335,051
Issue date
Dec 18, 2012
Hitachi Global Storage Technologies Netherlands B.V.
Isao Nunokawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording head for perpendicular recording with wrap aroun...
Patent number
8,203,803
Issue date
Jun 19, 2012
HGST Netherlands B.V.
Kimitoshi Etoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording head
Patent number
8,107,193
Issue date
Jan 31, 2012
Hitachi Global Storage Technologies Netherlands B.V.
Isao Nunokawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular recording magnetic head with a main magnetic pole pie...
Patent number
7,990,653
Issue date
Aug 2, 2011
Hitachi Global Storage Technologies Netherland B.V.
Masafumi Mochizuki
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing a perpendicular magnetic recording head
Patent number
7,895,732
Issue date
Mar 1, 2011
Hitachi Global Storage Technologies Netherlands B.V.
Tomohiro Okada
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of fabricating a magnetic recording head for perpendicular r...
Patent number
7,882,617
Issue date
Feb 8, 2011
Atsushi Kato
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording head for perpendicular recording, fabrication pr...
Patent number
7,715,152
Issue date
May 11, 2010
Hitachi Global Storage Technologies Netherlands B.V.
Tomohiro Okada
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head for perpendicular recording and fabrication process
Patent number
7,639,452
Issue date
Dec 29, 2009
Hitachi Global Storage Technologies Netherlands B.V.
Masafumi Mochizuki
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording head with shaped pole
Patent number
7,535,675
Issue date
May 19, 2009
Hitachi Global Storage Technologies Netherlands B.V.
Hisashi Kimura
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of fabricating a thin film magnetic recording head
Patent number
7,086,140
Issue date
Aug 8, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Tomohiro Okada
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic heads for perpendicular recording and magnetic recording d...
Patent number
6,995,949
Issue date
Feb 7, 2006
Hitachi, Ltd.
Atsushi Nakamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic heads for perpendicular recording and magnetic recording d...
Patent number
6,891,697
Issue date
May 10, 2005
Hitachi, Ltd.
Atsushi Nakamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic heads for perpendicular recording and magnetic recording d...
Patent number
6,813,116
Issue date
Nov 2, 2004
Hitachi, Ltd.
Atsushi Nakamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Thin film magnetic recording head, method of fabricating the thin f...
Patent number
6,785,097
Issue date
Aug 31, 2004
Hitachi, Ltd.
Tomohiro Okada
G11 - INFORMATION STORAGE
Information
Patent Grant
Exothermic resistor element and thermal process air flow meter usin...
Patent number
5,520,047
Issue date
May 28, 1996
Hitachi, Ltd.
Minoru Takahashi
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
TAPERED WRITE HEAD FOR MAMR
Publication number
20150131184
Publication date
May 14, 2015
HGST NETHERLANDS B.V.
Isao NUNOKAWA
G11 - INFORMATION STORAGE
Information
Patent Application
HEAT SINK FOR A SPIN TORQUE OSCILLATOR (STO) IN MICROWAVE ASSISTED...
Publication number
20150109699
Publication date
Apr 23, 2015
HGST NETHERLANDS B.V.
Carl Boone
G11 - INFORMATION STORAGE
Information
Patent Application
SHIELD STRUCTURE FOR REDUCING THE MAGNETIC INDUCTION RATE OF THE TR...
Publication number
20130155544
Publication date
Jun 20, 2013
Hitachi Global Storage Technologies Netherlands B.V.
Tomoaki Hamasaki
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING APPARATUS
Publication number
20130057980
Publication date
Mar 7, 2013
Hitachi, Ltd.
Masato SHIIMOTO
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING HEAD
Publication number
20110249360
Publication date
Oct 13, 2011
Isao Nunokawa
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR RECORDING MAGNETIC HEAD WITH A VARYING INTERVAL BETWE...
Publication number
20100157484
Publication date
Jun 24, 2010
Kimitoshi Etoh
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING HEAD HAVING A MAGNETIC LAYER OVERH...
Publication number
20100149697
Publication date
Jun 17, 2010
Isao Nunokawa
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic Recording Head, Method of Manufacturing the Same, and Magn...
Publication number
20100091413
Publication date
Apr 15, 2010
Isao Nunokawa
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular magnetic recording head
Publication number
20090154021
Publication date
Jun 18, 2009
Isao Nunokawa
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular magnetic recording head and method of manufacturing t...
Publication number
20090154013
Publication date
Jun 18, 2009
Mikito Sugiyama
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular recording magnetic head
Publication number
20070253107
Publication date
Nov 1, 2007
Hitachi Global Storage Technologies Netherlands B.V.
Masafumi Mochizuki
G11 - INFORMATION STORAGE
Information
Patent Application
Perpendicular magnetic recording head and method of manufacturing t...
Publication number
20070217069
Publication date
Sep 20, 2007
Hitachi Global Storage Technologies Netherlands B.V.
Tomohiro Okada
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording head for perpendicular recording, fabrication pr...
Publication number
20060203381
Publication date
Sep 14, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Tomohiro Okada
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic head for perpendicular recording and fabrication process
Publication number
20060198050
Publication date
Sep 7, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Masafumi Mochizuki
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording head for perpendicular recording with enhanced c...
Publication number
20060090329
Publication date
May 4, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Atsushi Kato
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording head for perpendicular recording with wrap aroun...
Publication number
20060082924
Publication date
Apr 20, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Kimitoshi Etoh
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic head with electro lapping guide and manufacturing method
Publication number
20060028770
Publication date
Feb 9, 2006
Hitachi Global Storage Technologies Netherlands B.V.
Kimitoshi Etoh
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic heads for perpendicular recording and magnetic recording d...
Publication number
20050185335
Publication date
Aug 25, 2005
Atsushi Nakamura
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording head with shaped pole and fabrication process
Publication number
20050162778
Publication date
Jul 28, 2005
Hitachi Global Storage Technologies Netherlands, B.V.
Hisashi Kimura
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording head for perpendicular recording, fabrication pr...
Publication number
20050141137
Publication date
Jun 30, 2005
Hitachi Global Storage Technologies Netherlands, B.V.
Tomohiro Okada
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC HEADS FOR PERPENDICULAR RECORDING AND MAGNETIC RECORDING D...
Publication number
20050057853
Publication date
Mar 17, 2005
Atsushi Nakamura
G11 - INFORMATION STORAGE
Information
Patent Application
Method of fabricating a thin film magnetic recording head
Publication number
20050018346
Publication date
Jan 27, 2005
Tomohiro Okada
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic heads for perpendicular recording and magnetic recording d...
Publication number
20030151850
Publication date
Aug 14, 2003
Atsushi Nakamura
G11 - INFORMATION STORAGE
Information
Patent Application
Thin film magnetic recording head, method of fabricating the thin f...
Publication number
20030026039
Publication date
Feb 6, 2003
Tomohiro Okada
G11 - INFORMATION STORAGE