Yotsuo Yahisa

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Perpendicular magnetic recording medium and magnetic storage appara...
- Patent number 8,703,307
- Issue date Apr 22, 2014
- HGST Netherlands B.V.
- Akemi Hirotsune
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording media having low medium noise and...
- Patent number 8,592,060
- Issue date Nov 26, 2013
- HGST Netherlands B.V.
- Ichiro Tamai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having a cobalt-based alloy film for high...
- Patent number 7,876,530
- Issue date Jan 25, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Tatsuya Hinoue
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having a cobalt-based alloy film for high...
- Patent number 7,545,604
- Issue date Jun 9, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Tatsuya Hinoue
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic storage device
- Patent number 7,338,725
- Issue date Mar 4, 2008
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording apparatus
- Patent number 7,267,894
- Issue date Sep 11, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording system using the same
- Patent number 7,261,958
- Issue date Aug 28, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshiyuki Hirayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for manufacturing a magnetic medium
- Patent number 7,249,405
- Issue date Jul 31, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshio Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 7,163,756
- Issue date Jan 16, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 7,056,604
- Issue date Jun 6, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording apparatus
- Patent number 7,005,202
- Issue date Feb 28, 2006
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic storage device
- Patent number 6,887,565
- Issue date May 3, 2005
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium with controlled grain diameters and metho...
- Patent number 6,884,521
- Issue date Apr 26, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshio Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording apparatus
- Patent number 6,830,837
- Issue date Dec 14, 2004
- Hitachi Global Storage Technologies Japan, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and manufacturing method thereof
- Patent number 6,756,113
- Issue date Jun 29, 2004
- Hitachi Storage Technologies Japan, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic disk apparatus using the same
- Patent number 6,703,148
- Issue date Mar 9, 2004
- Hitachi, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, method of fabricating magnetic recording...
- Patent number 6,692,843
- Issue date Feb 17, 2004
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshibumi Matsuda
- 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 medium and magnetic disk apparatus using the same
- Patent number 6,623,873
- Issue date Sep 23, 2003
- Hitachi, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording apparatus
- Patent number 6,623,874
- Issue date Sep 23, 2003
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 6,596,420
- Issue date Jul 22, 2003
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, producing method of the same and magneti...
- Patent number 6,544,667
- Issue date Apr 8, 2003
- Hitachi, Ltd.
- Yuzuru Hosoe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording media and magnetic recording system using the same
- Patent number 6,403,240
- Issue date Jun 11, 2002
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, method for producing the same and magnet...
- Patent number 6,372,367
- Issue date Apr 16, 2002
- Hitachi, Ltd.
- Yoshibumi Matsuda
- B32 - LAYERED PRODUCTS
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 medium, method of fabricating magnetic recording...
- Patent number 6,197,367
- Issue date Mar 6, 2001
- Hitachi, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Substrate for a magnetic recording medium, the magnetic recording m...
- Patent number 6,096,445
- Issue date Aug 1, 2000
- Hitachi, Ltd.
- Masatomo Terakado
- 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 recording medium
- Patent number 5,906,884
- Issue date May 25, 1999
- Hitachi, Ltd.
- Yotsuo Yahisa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIA HAVING LOW MEDIUM NOISE AND...
- Publication number 20120154948
- Publication date Jun 21, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Ichiro Tamai
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM (PMRM) AND SYSTEMS THEREOF
- Publication number 20120099220
- Publication date Apr 26, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Ichiro Tamai
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARA...
- Publication number 20120087034
- Publication date Apr 12, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Akemi Hirotsune
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM (PMRM) AND MAGNETIC STORAGE...
- Publication number 20120044595
- Publication date Feb 23, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Yotsuo Yahisa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium for high density recording and magnetic s...
- Publication number 20090258253
- Publication date Oct 15, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Tatsuya Hinoue
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium for high density recording and magnetic s...
- Publication number 20060139806
- Publication date Jun 29, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Tatsuya Hinoue
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic storage device
- Publication number 20050164037
- Publication date Jul 28, 2005
- Hitachi, Ltd
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and method for manufacturing the same
- Publication number 20050138796
- Publication date Jun 30, 2005
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshio Takahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic recording apparatus
- Publication number 20050084716
- Publication date Apr 21, 2005
- Hitachi Global StorageTechnologies Japan, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium
- Publication number 20040214049
- Publication date Oct 28, 2004
- Hitachi Global Storage Technologies Japan, Ltd.
- Tomoo Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and manufacturing method thereof
- Publication number 20040213991
- Publication date Oct 28, 2004
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic recording apparatus
- Publication number 20040072022
- Publication date Apr 15, 2004
- HITACHI GLOBAL STORAGE TECHNOLOGIES
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic recording apparatus
- Publication number 20040028950
- Publication date Feb 12, 2004
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and method for manufacturing the same
- Publication number 20030219631
- Publication date Nov 27, 2003
- Hitachi, Ltd.
- Yoshio Takahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording media and magnetic recording system using the same
- Publication number 20030211364
- Publication date Nov 13, 2003
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic recording apparatus
- Publication number 20030148143
- Publication date Aug 7, 2003
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic storage device
- Publication number 20030138665
- Publication date Jul 24, 2003
- Hitachi, Ltd
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic recording system using the same
- Publication number 20030017369
- Publication date Jan 23, 2003
- Hitachi, Ltd.
- Yoshiyuki Hirayama
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic disk apparatus using the same
- Publication number 20030003327
- Publication date Jan 2, 2003
- Hitachi, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and manufacturing method thereof
- Publication number 20020197515
- Publication date Dec 26, 2002
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording media and magnetic recording system using the same
- Publication number 20020150796
- Publication date Oct 17, 2002
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and magnetic recording apparatus
- Publication number 20020064691
- Publication date May 30, 2002
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
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
Information Patent Application
Magnetic recording medium, method of fabricating magnetic recording...
- Publication number 20010008716
- Publication date Jul 19, 2001
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE

Yotsuo Yahisa

Person

Patents Grantslast 30 patents

Perpendicular magnetic recording medium and magnetic storage appara...

Perpendicular magnetic recording media having low medium noise and...

Magnetic recording medium having a cobalt-based alloy film for high...

Magnetic recording medium having a cobalt-based alloy film for high...

Magnetic recording medium and magnetic storage device

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium and magnetic recording system using the same

Method for manufacturing a magnetic medium

Magnetic recording medium

Magnetic recording media and magnetic recording system using the same

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium and magnetic storage device

Magnetic recording medium with controlled grain diameters and metho...

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium and manufacturing method thereof

Magnetic recording medium and magnetic disk apparatus using the same

Magnetic recording medium, method of fabricating magnetic recording...

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

Magnetic recording medium and magnetic disk apparatus using the same

Magnetic recording medium and magnetic recording apparatus

Magnetic recording media and magnetic recording system using the same

Magnetic recording medium, producing method of the same and magneti...

Magnetic recording media and magnetic recording system using the same

Magnetic recording medium, method for producing the same and magnet...

Magnetic recording media for longitudinal recording

Magnetic recording medium, method of fabricating magnetic recording...

Substrate for a magnetic recording medium, the magnetic recording m...

Magnetic recording media and magnetic recording system using the same

Magnetic recording media for longitudinal recording

Magnetic recording medium

Patents Applicationslast 30 patents

PERPENDICULAR MAGNETIC RECORDING MEDIA HAVING LOW MEDIUM NOISE AND...

PERPENDICULAR MAGNETIC RECORDING MEDIUM (PMRM) AND SYSTEMS THEREOF

PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARA...

PERPENDICULAR MAGNETIC RECORDING MEDIUM (PMRM) AND MAGNETIC STORAGE...

Magnetic recording medium for high density recording and magnetic s...

Magnetic recording medium for high density recording and magnetic s...

Magnetic recording medium and magnetic storage device

Magnetic recording medium and method for manufacturing the same

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium

Magnetic recording medium and manufacturing method thereof

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium and method for manufacturing the same

Magnetic recording media and magnetic recording system using the same

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium and magnetic storage device

Magnetic recording medium and magnetic recording system using the same

Magnetic recording medium and magnetic disk apparatus using the same

Magnetic recording medium and manufacturing method thereof

Magnetic recording media and magnetic recording system using the same

Magnetic recording medium and magnetic recording apparatus

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

Magnetic recording medium, method of fabricating magnetic recording...