Masaki Ohura

Person

Odawara-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording media for longitudinal recording, process for pr...
- Patent number 6,627,253
- Issue date Sep 30, 2003
- Hitachi, Ltd.
- Hiroyuki Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media for longitudinal recording
- Patent number 6,335,103
- Issue date Jan 1, 2002
- Hitachi, Ltd.
- Hiroyuki Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk including protective layer having surface with protru...
- Patent number 6,303,205
- Issue date Oct 16, 2001
- Hitachi, Ltd.
- Hideaki Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 6,057,021
- Issue date May 2, 2000
- Hitachi, Ltd.
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media for longitudinal recording
- Patent number 6,010,794
- Issue date Jan 4, 2000
- Hitachi, Ltd.
- Hiroyuki Suzuki
Information Patent Grant
Magnetic disk including protective layer having surface with magnet...
- Patent number 5,930,073
- Issue date Jul 27, 1999
- Hitachi, Ltd.
- Hideaki Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 5,750,230
- Issue date May 12, 1998
- Hitachi, Ltd.
- Akira Ishikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media for longitudinal recording
- Patent number 5,665,478
- Issue date Sep 9, 1997
- Hitachi, Ltd.
- Hiroyuki Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk, method of manufacturing the same and magnetic disk a...
- Patent number 5,656,349
- Issue date Aug 12, 1997
- Hitachi, Ltd.
- Kenichi Gomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head having magnetic layers of different thickne...
- Patent number RE35490
- Issue date Apr 8, 1997
- Hitachi, Ltd.
- Masaki Ohura
- 360 - Dynamic magnetic information storage or retrieval
Information Patent Grant
Magnetic disk including protective layer having surface with protus...
- Patent number 5,504,646
- Issue date Apr 2, 1996
- Hitachi, Ltd.
- Hideaki Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, process for producing magnetic recording...
- Patent number 5,500,296
- Issue date Mar 19, 1996
- Hitachi, Ltd.
- Youichi Inoue
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk manufacturing method
- Patent number 5,411,630
- Issue date May 2, 1995
- Hitachi, Ltd.
- Norikazu Nagase
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk unit having magnetic disks and a magnetic head with a...
- Patent number 5,353,182
- Issue date Oct 4, 1994
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk with surface protective layer having convex portions...
- Patent number 5,285,343
- Issue date Feb 8, 1994
- Hitachi, Ltd.
- Hideaki Tanaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording medium, method for producing same and magnetic r...
- Patent number 5,280,401
- Issue date Jan 18, 1994
- Hitachi, Ltd.
- Youichi Inomata
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk-type recording medium and storage apparatus
- Patent number 5,272,581
- Issue date Dec 21, 1993
- Hitachi, Ltd.
- Shyuichi Kojima
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic storage
- Patent number 5,236,791
- Issue date Aug 17, 1993
- Hitachi, Ltd.
- Yotsuo Yahisa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk having an improved surface configuration
- Patent number 5,202,810
- Issue date Apr 13, 1993
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,158,833
- Issue date Oct 27, 1992
- Hitachi, Ltd.
- Shinya Matsuoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Longitudinal magnetic recording media and magnetic memory units
- Patent number 5,147,732
- Issue date Sep 15, 1992
- Hitachi, Ltd.
- Yoshihiro Shiroishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media for longitudinal recording, process for pr...
- Patent number 5,143,794
- Issue date Sep 1, 1992
- Hitachi, Ltd.
- Hiroyuki Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk medium with circumferentially textured surfaces and v...
- Patent number 4,939,614
- Issue date Jul 3, 1990
- Hitachi, Ltd.
- Takaaki Shirakura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,939,045
- Issue date Jul 3, 1990
- Hitachi, Ltd.
- Kazuetsu Yoshida
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,883,711
- Issue date Nov 28, 1989
- Hitachi, Ltd.
- Yoshihiro Shiroishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head and method of manufacture
- Patent number 4,841,402
- Issue date Jun 20, 1989
- Hitachi, Ltd.
- Tadashi Imanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,833,020
- Issue date May 23, 1989
- Hitachi, Ltd.
- Yoshihiro Shiroishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Film magnetic head slider having a contacting portion containing zi...
- Patent number 4,734,802
- Issue date Mar 29, 1988
- Hitachi, Ltd.
- Shinsuke Higuchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Thin film magnetic head slider
- Patent number 4,639,803
- Issue date Jan 27, 1987
- Hitachi, Ltd.
- Yukio Takeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head having magnetic layers of different thickne...
- Patent number 4,636,901
- Issue date Jan 13, 1987
- Hitachi, Ltd.
- Masaki Ohura
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic recording media for longitudinal recording, process for pr...
- Publication number 20010053458
- Publication date Dec 20, 2001
- Hitachi, Ltd.
- Hiroyuki Suzuki
- G11 - INFORMATION STORAGE

Masaki Ohura

Person

Patents Grantslast 30 patents

Magnetic recording media for longitudinal recording, process for pr...

Magnetic recording media for longitudinal recording

Magnetic disk including protective layer having surface with protru...

Magnetic recording media and magnetic recording system using the same

Magnetic recording media for longitudinal recording

Magnetic disk including protective layer having surface with magnet...

Magnetic recording media and magnetic recording system using the same

Magnetic recording media for longitudinal recording

Magnetic disk, method of manufacturing the same and magnetic disk a...

Thin film magnetic head having magnetic layers of different thickne...

Magnetic disk including protective layer having surface with protus...

Magnetic recording medium, process for producing magnetic recording...

Magnetic disk manufacturing method

Magnetic disk unit having magnetic disks and a magnetic head with a...

Magnetic disk with surface protective layer having convex portions...

Magnetic recording medium, method for producing same and magnetic r...

Disk-type recording medium and storage apparatus

Magnetic recording medium and magnetic storage

Magnetic disk having an improved surface configuration

Magnetic recording medium

Longitudinal magnetic recording media and magnetic memory units

Magnetic recording media for longitudinal recording, process for pr...

Magnetic disk medium with circumferentially textured surfaces and v...

Magnetic recording medium

Magnetic recording medium

Thin film magnetic head and method of manufacture

Magnetic recording medium

Film magnetic head slider having a contacting portion containing zi...

Thin film magnetic head slider

Thin film magnetic head having magnetic layers of different thickne...

Patents Applicationslast 30 patents

Magnetic recording media for longitudinal recording, process for pr...