Shigekazu Otomo

Person

Hachioji, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Recording/reproducing separated type magnetic head having different...
- Patent number 7,154,714
- Issue date Dec 26, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Hiroshi Fukui
- G11 - INFORMATION STORAGE
Information Patent Grant
Soft magnetic thin film, and magnetic head and magnetic recording d...
- Patent number 6,033,792
- Issue date Mar 7, 2000
- Hitachi, Ltd.
- Fumiyoshi Kirino
- G11 - INFORMATION STORAGE
Information Patent Grant
Soft magnetic thin film, and magnetic head and magnetic recording d...
- Patent number 5,873,955
- Issue date Feb 23, 1999
- Hitachi, Ltd.
- Fumiyoshi Kirino
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Corrosion-resistant magnetic film and magnetic head using the same
- Patent number 5,663,006
- Issue date Sep 2, 1997
- Hitachi, Ltd.
- Hitoshi Nakamura
- G11 - INFORMATION STORAGE
Information 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
Magnetic head having main and auxiliary magnetic paths
- Patent number 5,247,415
- Issue date Sep 21, 1993
- Hitachi, Ltd.
- Noriyuki Kumasaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotating drum having a center of gravity in registry with an axis o...
- Patent number 5,159,505
- Issue date Oct 27, 1992
- Hitachi, Ltd.
- Yasuaki Horiuchi
- 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
Thin film magnetic head including magnetic layers having high satur...
- Patent number 4,943,879
- Issue date Jul 24, 1990
- Hitachi, Ltd.
- Hisashi Takano
- G11 - INFORMATION STORAGE
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
Ferromagnetic film and magnetic head using the same
- Patent number 4,935,314
- Issue date Jun 19, 1990
- Hitachi, Ltd.
- Toshio Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic Multilayer structure
- Patent number 4,920,013
- Issue date Apr 24, 1990
- Hitachi, Ltd.
- Toshio Kobayashi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Process for preparing magnetic layer and magnetic head prepared usi...
- Patent number 4,894,098
- Issue date Jan 16, 1990
- Hitachi, Ltd.
- Shigekazu Otomo
- G11 - INFORMATION STORAGE
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
Magnetic film and magnetic head using the same
- Patent number 4,858,049
- Issue date Aug 15, 1989
- Hitachi, Ltd.
- Toshio Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferromagnetic amorphous alloy
- Patent number RE33022
- Issue date Aug 15, 1989
- Hitachi, Ltd.
- Shinji Takayama
- 148 - Metal treatment
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
Multilayered magnetic films and thin-film magnetic heads using the...
- Patent number 4,814,921
- Issue date Mar 21, 1989
- Hitachi, Ltd.
- Yoshihiro Hamakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having improved track width narrowing grooves
- Patent number 4,803,338
- Issue date Feb 7, 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
Process for preparing magnetic layer and magnetic head prepared usi...
- Patent number 4,772,976
- Issue date Sep 20, 1988
- Hitachi, Ltd.
- Shigekazu Otomo
- 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
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 with non-magnetic member in coil mount...
- Patent number 4,745,507
- Issue date May 17, 1988
- Hitachi, Ltd.
- Shigekazu Otomo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing system with composite magnetic head
- Patent number 4,731,683
- Issue date Mar 15, 1988
- Hitachi, Ltd.
- Shigekazu Otomo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head to effect high density magnetic recording
- Patent number 4,701,819
- Issue date Oct 20, 1987
- Hitachi Maxell, Ltd.
- Osamu Inagoya
- G11 - INFORMATION STORAGE
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

Patents Applicationslast 30 patents

Information Patent Application
Recording/reproducing separated type magnetic head having different...
- Publication number 20040047087
- Publication date Mar 11, 2004
- Hiroshi Fukui
- G11 - INFORMATION STORAGE

Shigekazu Otomo

Person

Patents Grantslast 30 patents

Recording/reproducing separated type magnetic head having different...

Soft magnetic thin film, and magnetic head and magnetic recording d...

Soft magnetic thin film, and magnetic head and magnetic recording d...

Corrosion-resistant magnetic film and magnetic head using the same

Magnetic head and magnetic recording and reproducing apparatus usin...

Magnetic head having main and auxiliary magnetic paths

Rotating drum having a center of gravity in registry with an axis o...

Amorphous magnetic alloy of Co-Nb-Zr system and magnetic head made...

Thin film magnetic head including magnetic layers having high satur...

Magnetic multilayered film and magnetic head using the same

Ferromagnetic film and magnetic head using the same

Magnetic Multilayer structure

Process for preparing magnetic layer and magnetic head prepared usi...

Ferrromagnetic thin film and magnetic head using it

Magnetic film and magnetic head using the same

Ferromagnetic amorphous alloy

Floating magnetic head having a magnetic core buried in a channel o...

Magnetic head having short distance between gaps for recording repr...

Multilayered magnetic films and thin-film magnetic heads using the...

Magnetic head having improved track width narrowing grooves

Magnetic head having an integrated recording and playback head and...

Process for preparing magnetic layer and magnetic head prepared usi...

Magnetic head having ferromagnetic amorphous alloy multi-layered film

Magnetic head made from amorphous magnetic film

Multilayered ferromagnetic amorphous alloy film and magnetic head e...

Composite type magnetic head with non-magnetic member in coil mount...

Magnetic recording and reproducing system with composite magnetic head

Magnetic head to effect high density magnetic recording

Composite type magnetic head for recording and reproducing high fre...

Magnetic film structure

Patents Applicationslast 30 patents

Recording/reproducing separated type magnetic head having different...