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Noritoshi Saito
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Hachioji, JP
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Patents Grants
last 30 patents
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Patent Grant
Magnetic head and magnetic recording and reproducing apparatus usin...
Patent number
5,463,518
Issue date
Oct 31, 1995
Hitachi, Ltd.
Shigekazu Otomo
G11 - INFORMATION STORAGE
Information
Patent Grant
Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made...
Patent number
4,972,285
Issue date
Nov 20, 1990
Hitachi, Ltd.
Shigekazu Otomo
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Magnetic multilayered film and magnetic head using the same
Patent number
4,935,311
Issue date
Jun 19, 1990
Hitachi, Ltd.
Ryoichi Nakatani
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Ferrromagnetic thin film and magnetic head using it
Patent number
4,891,278
Issue date
Jan 2, 1990
Hitachi, Ltd.
Shigekazu Otomo
G11 - INFORMATION STORAGE
Information
Patent Grant
Floating magnetic head having a magnetic core buried in a channel o...
Patent number
4,851,942
Issue date
Jul 25, 1989
Hitachi, Ltd.
Niroyuki Kumasaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head having short distance between gaps for recording repr...
Patent number
4,847,715
Issue date
Jul 11, 1989
Hitachi, Ltd.
Noriyuki Kumasaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head having an integrated recording and playback head and...
Patent number
4,774,616
Issue date
Sep 27, 1988
Hitachi, Ltd.
Noriyuki Kumasaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head having ferromagnetic amorphous alloy multi-layered film
Patent number
4,769,729
Issue date
Sep 6, 1988
Hitachi, Ltd.
Noriyuki Kumasaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head made from amorphous magnetic film
Patent number
4,766,039
Issue date
Aug 23, 1988
Hitachi, Ltd.
Shigekazu Otomo
G11 - INFORMATION STORAGE
Information
Patent Grant
Ferromagnetic material and a magnetic head using the same material
Patent number
4,762,755
Issue date
Aug 9, 1988
Hitachi, Ltd.
Kazuo Shiiki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Multilayered ferromagnetic amorphous alloy film and magnetic head e...
Patent number
4,748,089
Issue date
May 31, 1988
Hitachi, Ltd.
Noriyuki Kumasaka
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Composite type magnetic head for recording and reproducing high fre...
Patent number
4,656,547
Issue date
Apr 7, 1987
Hitachi, Ltd.
Noriyuki Kumasaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic film structure
Patent number
4,610,935
Issue date
Sep 9, 1986
Hitachi, Ltd.
Noriyuki Kumasaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head and method of fabricating same
Patent number
4,559,572
Issue date
Dec 17, 1985
Hitachi, Ltd.
Noriyuki Kumasaka
G11 - INFORMATION STORAGE