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Kikuo Kusukawa
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Yoshikawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
High frequency magnetic field assisted magnetic recording head
Patent number
9,007,722
Issue date
Apr 14, 2015
Hitachi, Ltd.
Junichiro Shimizu
G11 - INFORMATION STORAGE
Information
Patent Grant
High frequency magnetic field assisted magnetic recording head, and...
Patent number
8,917,481
Issue date
Dec 23, 2014
Hitachi, Ltd.
Kikuo Kusukawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Microwave-assisted magnetic recording head having a current confine...
Patent number
8,472,135
Issue date
Jun 25, 2013
HGST Netherlands B.V.
Kikuo Kusukawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetoresistive head
Patent number
7,280,321
Issue date
Oct 9, 2007
Hitachi Global Storage Technologies Japan, Ltd.
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic sensor having a free layer containing a single magnetic do...
Patent number
7,274,542
Issue date
Sep 25, 2007
Hitachi Global Storage Technologies Japan, Ltd.
Taku Shintani
G11 - INFORMATION STORAGE
Information
Patent Grant
CPP-type magnetic head with less deformation and a magnetic recordi...
Patent number
7,154,713
Issue date
Dec 26, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetoresistive head
Patent number
7,092,217
Issue date
Aug 15, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
CPP-type magnetic head with less deformation and a magnetic recordi...
Patent number
7,031,119
Issue date
Apr 18, 2006
Hitachi, Ltd.
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Polishing agent and polishing method
Patent number
7,026,245
Issue date
Apr 11, 2006
Renesas Technology Corp.
Yoshio Homma
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Magnetic head and a magnetic disk drive
Patent number
6,999,270
Issue date
Feb 14, 2006
Hitachi, Ltd.
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor device having groove isolation structure and gate oxi...
Patent number
6,657,248
Issue date
Dec 2, 2003
Hitachi, Ltd.
Nozomu Matsuzaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing semiconductor devices
Patent number
6,498,100
Issue date
Dec 24, 2002
Hitachi, Ltd.
Akio Nishida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing semiconductor devices
Patent number
6,380,085
Issue date
Apr 30, 2002
Hitachi, Ltd.
Akio Nishida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing semiconductor devices
Patent number
6,204,184
Issue date
Mar 20, 2001
Hitachi, Ltd.
Akio Nishida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Polishing agent and polishing method
Patent number
6,043,155
Issue date
Mar 28, 2000
Hitachi, Ltd.
Yoshio Homma
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Polishing agent and polishing method
Patent number
5,772,780
Issue date
Jun 30, 1998
Hitachi, Ltd.
Yoshio Homma
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Polishing method
Patent number
5,609,511
Issue date
Mar 11, 1997
Hitachi, Ltd.
Shigeo Moriyama
B24 - GRINDING POLISHING
Information
Patent Grant
Semiconductor memory and method of producing the same
Patent number
4,984,038
Issue date
Jan 8, 1991
Hitachi, Ltd.
Hideo Sunami
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory and method of producing the same
Patent number
4,937,641
Issue date
Jun 26, 1990
Hitachi, Ltd.
Hideo Sunami
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
HIGH FREQUENCY MAGNETIC FIELD ASSISTED MAGNETIC RECORDING HEAD, AND...
Publication number
20140313616
Publication date
Oct 23, 2014
Hitachi, Ltd
Kikuo KUSUKAWA
G11 - INFORMATION STORAGE
Information
Patent Application
HIGH FREQUENCY MAGNETIC FIELD ASSISTED MAGNETIC RECORDING HEAD
Publication number
20140063658
Publication date
Mar 6, 2014
Hitachi, Ltd
Junichiro SHIMIZU
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetoresistive head
Publication number
20060274457
Publication date
Dec 7, 2006
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic head and magnetic recording/reproducing system
Publication number
20060109592
Publication date
May 25, 2006
Hitachi, Ltd.
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic head and a magnetic disk drive
Publication number
20040264034
Publication date
Dec 30, 2004
Hitachi., Ltd.
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic sensor
Publication number
20040080873
Publication date
Apr 29, 2004
Taku Shintani
G01 - MEASURING TESTING
Information
Patent Application
Magnetic head and magnetic recording/reproducing system
Publication number
20040042126
Publication date
Mar 4, 2004
Hitachi, Ltd.
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Application
Polishing agent and polishing method
Publication number
20030203634
Publication date
Oct 30, 2003
Yoshio Homma
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Magnetoresistive head
Publication number
20030107848
Publication date
Jun 12, 2003
Katsuro Watanabe
G11 - INFORMATION STORAGE
Information
Patent Application
Polishing agent and polishing method
Publication number
20020068452
Publication date
Jun 6, 2002
Yoshio Homma
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
Method of manufacturing semiconductor devices
Publication number
20020055261
Publication date
May 9, 2002
Hitachi, Ltd.
Akio Nishida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method of manufacturing semiconductor devices
Publication number
20010053597
Publication date
Dec 20, 2001
Hitachi, Ltd.
Akio Nishida
H01 - BASIC ELECTRIC ELEMENTS