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Odawara, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic disc unit with gap between magnetic disc and shroud
Patent number
7,643,245
Issue date
Jan 5, 2010
Hitachi Global Storage Technologies Japan, Ltd.
Mikio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disc unit with gap between magnetic disc and shroud
Patent number
7,336,440
Issue date
Feb 26, 2008
Hitachi Global Storage Technologies Japan, Ltd.
Mikio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus with shroud and having open space downstrea...
Patent number
7,330,334
Issue date
Feb 12, 2008
Hitachi Global Storage Technologies Japan, Ltd.
Hayato Shimizu
G11 - INFORMATION STORAGE
Information
Patent Grant
Servo pattern writing method and magnetic disk drive for carrying o...
Patent number
7,161,754
Issue date
Jan 9, 2007
Hitachi Global Storage Technologies Japan, Ltd.
Shigeyuki Hanazawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk device and unbalance correcting method thereof
Patent number
7,130,151
Issue date
Oct 31, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Teruhiro Nakamiya
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disc unit with range of gap between disc and shroud
Patent number
7,072,141
Issue date
Jul 4, 2006
Hitachi Global Storage Technologies Japan, Ltd.
Mikio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus with air flow bypass channel
Patent number
6,898,049
Issue date
May 24, 2005
Hitachi, Ltd.
Hayato Shimizu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disc unit
Patent number
6,751,050
Issue date
Jun 15, 2004
Hitachi, Ltd.
Mikio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic-disc unit with gap between disc and shroud
Patent number
6,665,139
Issue date
Dec 16, 2003
Hitachi, Ltd.
Mikio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus
Patent number
6,657,822
Issue date
Dec 2, 2003
Hitachi, Ltd.
Gentaro Nakamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus
Patent number
6,600,626
Issue date
Jul 29, 2003
Hitachi, Ltd.
Hayato Shimizu
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus in which contact between a disk and a carri...
Patent number
6,504,683
Issue date
Jan 7, 2003
Hitachi, Ltd.
Satomitsu Imai
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk drive
Patent number
6,445,549
Issue date
Sep 3, 2002
Hitachi, Ltd.
Nobuyuki Okunaga
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk drive
Patent number
6,353,517
Issue date
Mar 5, 2002
Hitachi, Ltd.
Nobuyuki Okunaga
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk device
Patent number
6,233,120
Issue date
May 15, 2001
Hitachi, Ltd.
Kazuyoshi Hanada
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk device for restraining vibration of head mounting part
Patent number
5,995,327
Issue date
Nov 30, 1999
Hitachi, Ltd.
Kazuyoshi Hanada
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk apparatus
Patent number
5,953,178
Issue date
Sep 14, 1999
Hitachi, Ltd.
Akio Takatsuka
G11 - INFORMATION STORAGE
Information
Patent Grant
Wiring structure in the load beam and guide arm of a magnetic disk...
Patent number
5,936,802
Issue date
Aug 10, 1999
Hitachi, Ltd.
Yuichi Koizumi
G11 - INFORMATION STORAGE
Information
Patent Grant
Rotary information recording and reproduction apparatus
Patent number
5,677,813
Issue date
Oct 14, 1997
Hitachi, Ltd.
Takeshi Yoshida
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
MAGNETIC DISC UNIT WITH GAP BETWEEN MAGNETIC DISC AND SHROUD
Publication number
20080106819
Publication date
May 8, 2008
Mikio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disc unit
Publication number
20060164754
Publication date
Jul 27, 2006
Mikio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk apparatus
Publication number
20050219741
Publication date
Oct 6, 2005
Hayato Shimizu
G11 - INFORMATION STORAGE
Information
Patent Application
Servo pattern writing method and magnetic disk drive for carrying o...
Publication number
20050046993
Publication date
Mar 3, 2005
Hitachi Global Storage Technologies Japan, Ltd.
Shigeyuki Hanazawa
G11 - INFORMATION STORAGE
Information
Patent Application
Disk device and unbalance correcting method thereof
Publication number
20050047003
Publication date
Mar 3, 2005
Teruhiro Nakamiya
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disc unit
Publication number
20040070866
Publication date
Apr 15, 2004
Mikio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk apparatus
Publication number
20030189785
Publication date
Oct 9, 2003
Hayato Shimizu
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk apparatus
Publication number
20020181149
Publication date
Dec 5, 2002
Hayato Shimizu
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic-disc unit
Publication number
20020075592
Publication date
Jun 20, 2002
Mikio Tokuyama
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk drive
Publication number
20020034053
Publication date
Mar 21, 2002
Hitachi, Ltd.
Nobuyuki Okunaga
G11 - INFORMATION STORAGE