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Tsugihiro Doi
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Electrode and method for producing the same
Patent number
9,231,272
Issue date
Jan 5, 2016
Hitachi Maxell, Ltd.
Hiroyuki Mitsuhashi
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Recording/reproducing method of magnetic tape
Patent number
7,593,177
Issue date
Sep 22, 2009
Hitachi Maxell, Ltd.
Masao Okafuji
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording/reproducing method of magnetic tape
Patent number
7,545,597
Issue date
Jun 9, 2009
Hitachi Maxell, Ltd.
Masao Okafuji
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording medium built-in cartridge and cartridge built-in package
Patent number
7,522,381
Issue date
Apr 21, 2009
Hitachi Maxell, Ltd.
Teruo Sogabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape and magnetic tape cartridge
Patent number
7,494,728
Issue date
Feb 24, 2009
Hitachi Maxell, Ltd.
Sadamu Kuse
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium using magnetic powder having a core porti...
Patent number
7,445,858
Issue date
Nov 4, 2008
Hitachi Maxell, Ltd.
Sadamu Kuse
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape cartridge
Patent number
7,309,040
Issue date
Dec 18, 2007
Hitachi Maxell, Ltd.
Teruo Sogabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium using magnetic powder having a core porti...
Patent number
7,291,409
Issue date
Nov 6, 2007
Hitachi Maxell, Ltd.
Sadamu Kuse
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape and magnetic tape cartridge
Patent number
7,267,896
Issue date
Sep 11, 2007
Hitachi Maxell, Ltd.
Sadamu Kuse
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape including an intermediate layer consisting essentiall...
Patent number
7,259,935
Issue date
Aug 21, 2007
Hitachi Maxell, Ltd.
Tetsutaro Inoue
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording/reproducing method of magnetic tape
Patent number
7,253,988
Issue date
Aug 7, 2007
Hitachi Maxell, Ltd.
Masao Okafuji
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape and magnetic tape cartridge
Patent number
7,212,372
Issue date
May 1, 2007
Hitachi Maxell, Ltd.
Ken Yoshimura
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording/reproducing method of magnetic tape
Patent number
7,170,709
Issue date
Jan 30, 2007
Hitachi Maxell, Ltd.
Masao Okafuji
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium comprising a substrate coated with a prim...
Patent number
5,079,096
Issue date
Jan 7, 1992
Hitachi Maxell, Ltd.
Akira Miyake
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disc
Patent number
4,828,925
Issue date
May 9, 1989
Hitachi Maxell, Ltd.
Akira Miyake
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
ELECTRODE AND METHOD FOR PRODUCING THE SAME
Publication number
20120237821
Publication date
Sep 20, 2012
Hiroyuki MITSUHASHI
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
MAGNETIC TAPE AND MAGNETIC TAPE CARTRIDGE
Publication number
20080107921
Publication date
May 8, 2008
Hitachi Maxell, Ltd.
Sadamu KUSE
G11 - INFORMATION STORAGE
Information
Patent Application
RECORDING/REPRODUCING METHOD OF MAGNETIC TAPE
Publication number
20070285832
Publication date
Dec 13, 2007
Masao Okafuji
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING CASSETTE
Publication number
20070159722
Publication date
Jul 12, 2007
Hitachi Maxell, Ltd.
Sadamu KUSE
G11 - INFORMATION STORAGE
Information
Patent Application
RECORDING/REPRODUCING METHOD OF MAGNETIC TAPE
Publication number
20070097541
Publication date
May 3, 2007
Masao Okafuji
G11 - INFORMATION STORAGE
Information
Patent Application
RECORDING/REPRODUCING METHOD OF MAGNETIC TAPE
Publication number
20070086109
Publication date
Apr 19, 2007
Masao Okafuji
G11 - INFORMATION STORAGE
Information
Patent Application
Recording medium built-in cartridge and cartridge built-in package
Publication number
20060208122
Publication date
Sep 21, 2006
HITACHI MAXELL, LTD.
Teruo Sogabe
G11 - INFORMATION STORAGE
Information
Patent Application
Housing case for recording medium built-in cartridge, and cartridge...
Publication number
20060209461
Publication date
Sep 21, 2006
HITACHI MAXELL, LTD.
Teruo Sogabe
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic tape cartridge
Publication number
20060043228
Publication date
Mar 2, 2006
Hitachi Maxell, Ltd.
Teruo Sogabe
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic tape and magnetic tape cartridge
Publication number
20060003191
Publication date
Jan 5, 2006
Sadamu Kuse
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording medium and magnetic recording cassette
Publication number
20050276999
Publication date
Dec 15, 2005
Sadamu Kuse
G11 - INFORMATION STORAGE
Information
Patent Application
Recording/reproducing method of magnetic tape
Publication number
20050254162
Publication date
Nov 17, 2005
Hitachi Maxell, Ltd.
Masao Okafuji
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic tape
Publication number
20050196645
Publication date
Sep 8, 2005
Hitachi Maxell, Ltd.
Tsugihiro Doi
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic recording medium and method for producing the same
Publication number
20050170214
Publication date
Aug 4, 2005
Hitachi Maxell, Ltd.
Tsugihiro Doi
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic tape and magnetic tape cartridge
Publication number
20050153170
Publication date
Jul 14, 2005
HITACHI MAXELL, LTD.
Tetsutaro Inoue
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic tape
Publication number
20050142386
Publication date
Jun 30, 2005
HITACHI MAXELL, LTD.
Tetsutaro Inoue
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic tape and magnetic tape cartridge
Publication number
20040110037
Publication date
Jun 10, 2004
Sadamu Kuse
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic tape and magnetic tape cartridge
Publication number
20040089564
Publication date
May 13, 2004
Sadamu Kuse
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic tape and magnetic tape cartridge
Publication number
20040021024
Publication date
Feb 5, 2004
Ken Yoshimura
G11 - INFORMATION STORAGE