Takaaki Shirakura

Person

Chigasaki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Atomic force microscopy, method of measuring surface configuration...
- Patent number 6,989,535
- Issue date Jan 24, 2006
- Hitachi, Ltd.
- Hiroshi Tani
- G11 - INFORMATION STORAGE
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 recording media for longitudinal recording
- Patent number 6,010,794
- Issue date Jan 4, 2000
- Hitachi, Ltd.
- Hiroyuki Suzuki
Information Patent Grant
Magnetic disk and its manufacturing method
- Patent number 5,985,402
- Issue date Nov 16, 1999
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Frictionally sliding head magnet disk apparatus
- Patent number 5,825,591
- Issue date Oct 20, 1998
- Hitachi, Ltd.
- Takao Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and method of producing same
- Patent number 5,744,256
- Issue date Apr 28, 1998
- Hitachi, Ltd.
- Noriyoshi Goda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk and its manufacturing method
- Patent number 5,737,159
- Issue date Apr 7, 1998
- Hitachi, Ltd.
- Takao Nakamura
- 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 recording medium
- Patent number 5,158,833
- Issue date Oct 27, 1992
- Hitachi, Ltd.
- Shinya Matsuoka
- 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 and process for producing the same
- Patent number 4,842,917
- Issue date Jun 27, 1989
- Hitachi, Ltd.
- Tomoyuki Ohno
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,786,553
- Issue date Nov 22, 1988
- Hitachi, Ltd.
- Yoshihiro Shiroishi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Atomic force microscopy, method of measuring surface configuration...
- Publication number 20030150990
- Publication date Aug 14, 2003
- Hitachi, Ltd
- Hiroshi Tani
- G01 - MEASURING TESTING
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

Takaaki Shirakura

Person

Patents Grantslast 30 patents

Atomic force microscopy, method of measuring surface configuration...

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

Magnetic recording media for longitudinal recording

Magnetic recording media for longitudinal recording

Magnetic disk and its manufacturing method

Frictionally sliding head magnet disk apparatus

Magnetic recording medium and method of producing same

Magnetic disk and its manufacturing method

Magnetic recording media for longitudinal recording

Magnetic recording medium

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

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

Magnetic recording medium and process for producing the same

Magnetic recording medium

Patents Applicationslast 30 patents

Atomic force microscopy, method of measuring surface configuration...

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