Kiwamu Tanahashi

Person

Kokubunji-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Soft magnetic underlayer having high temperature robustness for hig...
- Patent number 9,406,328
- Issue date Aug 2, 2016
- HGST Netherlands B.V.
- Shun Tonooka
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording medium with grain boundary control...
- Patent number 9,058,831
- Issue date Jun 16, 2015
- HGST Netherlands B.V.
- Shun Tonooka
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for manufacturing perpendicular magnetic recording medium
- Patent number 8,795,478
- Issue date Aug 5, 2014
- HGST Netherlands B.V.
- Yoshinori Honda
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Perpendicular magnetic recording medium (PMRM) and magnetic storage...
- Patent number 8,705,208
- Issue date Apr 22, 2014
- HGST Netherlands B.V.
- Hiroyuki Nakagawa
- 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
Perpendicular magnetic recording medium and magnetic storage device...
- Patent number 8,440,332
- Issue date May 14, 2013
- HGST Netherlands B.V.
- Ichiro Tamai
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording medium having FCC seed layers
- Patent number 8,390,956
- Issue date Mar 5, 2013
- HGST Netherlands B.V.
- Shun Tonooka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium using layers having higher- and lower-HK...
- Patent number 8,298,688
- Issue date Oct 30, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Hiroaki Nemoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Methods and apparatus to fabricate soft magnetic film with preferre...
- Patent number 8,252,367
- Issue date Aug 28, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Gunn Choe
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Perpendicular magnetic recording medium and system having a magneti...
- Patent number 8,000,060
- Issue date Aug 16, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Zhengang Zhang
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Perpendicular magnetic recording medium, manufacturing process of t...
- Patent number 7,875,371
- Issue date Jan 25, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Reiko Arai
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing process for perpendicular magnetic recording medium
- Patent number 7,641,774
- Issue date Jan 5, 2010
- Hitachi Global Storage Technologies Netherlands B.V.
- Yoshinori Honda
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Perpendicular magnetic recording media
- Patent number 7,316,852
- Issue date Jan 8, 2008
- Hitachi Global Storage Technologies Japan, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording medium and magnetic recording/repr...
- Patent number 7,217,467
- Issue date May 15, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Reiko Arai
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and its manufacturing method and magnetic...
- Patent number 7,182,974
- Issue date Feb 27, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshio Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording media, manufacturing process of th...
- Patent number 7,153,546
- Issue date Dec 26, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording medium, manufacturing process of t...
- Patent number 7,153,596
- Issue date Dec 26, 2006
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording media and magnetic storage
- Patent number 7,138,195
- Issue date Nov 21, 2006
- Hitachi, Ltd.
- Kiwamu Tanahashi
- 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 media and magnetic storage apparatus using the same
- Patent number 7,050,253
- Issue date May 23, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Tetsuya Kanbe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Perpendicular magnetic recording media, manufacturing process of th...
- Patent number 7,041,393
- Issue date May 9, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for testing or recording servo signal on perpendicular magne...
- Patent number 7,026,810
- Issue date Apr 11, 2006
- Hitachi, Ltd.
- Atsushi Kikugawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and a magnetic storage apparatus
- Patent number 6,924,048
- Issue date Aug 2, 2005
- Hitachi, Ltd.
- Tetsuya Kanbe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium, magnetic recording apparatus using the s...
- Patent number 6,894,856
- Issue date May 17, 2005
- Hitachi, Ltd.
- Atsushi Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for testing or recording servo signal on perpendicular magne...
- Patent number 6,894,488
- Issue date May 17, 2005
- Hitachi, Ltd.
- Atsushi Kikugawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording media and magnetic storage apparat...
- Patent number 6,858,330
- Issue date Feb 22, 2005
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording media
- Patent number 6,808,824
- Issue date Oct 26, 2004
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording media and magnetic storage apparat...
- Patent number 6,759,148
- Issue date Jul 6, 2004
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular magnetic recording media, manufacturing process of th...
- Patent number 6,723,457
- Issue date Apr 20, 2004
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and its manufacturing method and magnetic...
- Patent number 6,709,768
- Issue date Mar 23, 2004
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshio Takahashi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIA HAVING AN EXTREMELY LOW HK L...
- Publication number 20180040345
- Publication date Feb 8, 2018
- HGST NETHERLANDS B.V.
- Shun Tonooka
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR RECORDING MEDIA HAVING HIGH-TEMPERATURE ROBUSTNESS
- Publication number 20160035381
- Publication date Feb 4, 2016
- HGST NETHERLANDS B.V.
- Shun TONOOKA
- G11 - INFORMATION STORAGE
Information Patent Application
SOFT MAGNETIC UNDERLAYER HAVING HIGH TEMPERATURE ROBUSTNESS FOR HIG...
- Publication number 20160035380
- Publication date Feb 4, 2016
- HGST NETHERLANDS B.V.
- Shun Tonooka
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH GRAIN BOUNDARY CONTROL...
- Publication number 20150294679
- Publication date Oct 15, 2015
- HGST NETHERLANDS B.V.
- Shun Tonooka
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH GRAIN BOUNDARY CONTROL...
- Publication number 20130155542
- Publication date Jun 20, 2013
- Hitachi Global Storage Technologies Netherlands B.V.
- Shun Tonooka
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH AN INVERTED Hk STRUCTURE
- Publication number 20120307395
- Publication date Dec 6, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Shun Tonooka
- G11 - INFORMATION STORAGE
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, MANUFACTURING PROCESS OF T...
- Publication number 20110151144
- Publication date Jun 23, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Reiko Arai
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING MEDIUM USING LAYERS HAVING HIGHER- AND LOWER-HK...
- Publication number 20110122525
- Publication date May 26, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Hiroaki Nemoto
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM, MANUFACTURING PROCESS OF T...
- Publication number 20110032638
- Publication date Feb 10, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Reiko Arai
- G11 - INFORMATION STORAGE
Information Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM (PMRM) AND MAGNETIC STORAGE...
- Publication number 20110002064
- Publication date Jan 6, 2011
- Hiroyuki Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording medium and magnetic storage device...
- Publication number 20090257144
- Publication date Oct 15, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Ichiro Tamai
- G11 - INFORMATION STORAGE
Information Patent Application
METHODS AND APPARATUS TO FABRICATE SOFT MAGNETIC FILM WITH PREFERRE...
- Publication number 20090162573
- Publication date Jun 25, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Gunn Choe
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording medium
- Publication number 20090023016
- Publication date Jan 22, 2009
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording medium and hard disk drive using t...
- Publication number 20080180843
- Publication date Jul 31, 2008
- Zhengang Zhang
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording medium and method for manufacturin...
- Publication number 20080113225
- Publication date May 15, 2008
- Hitachi Global Storage Technologies Inc.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Manufacturing process for perpendicular magnetic recording medium
- Publication number 20060090998
- Publication date May 4, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Yoshinori Honda
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Method for manufacturing perpendicular magnetic recording medium
- Publication number 20060086606
- Publication date Apr 27, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Yoshinori Honda
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Perpendicular magnetic recording medium, manufacturing process of t...
- Publication number 20050244679
- Publication date Nov 3, 2005
- Hitachi Global Storage Technologies Netherlands B.V.
- Reiko Arai
- G11 - INFORMATION STORAGE
Information Patent Application
Method for testing or recording servo signal on perpendicular magne...
- Publication number 20050204285
- Publication date Sep 15, 2005
- Atsushi Kikugawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, magnetic recording apparatus using the s...
- Publication number 20050134988
- Publication date Jun 23, 2005
- Hitachi, Ltd.
- Atsushi Nakamura
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording media
- Publication number 20050042479
- Publication date Feb 24, 2005
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording medium and magnetic recording/repr...
- Publication number 20040233565
- Publication date Nov 25, 2004
- Reiko Arai
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording medium, manufacturing process of t...
- Publication number 20040234818
- Publication date Nov 25, 2004
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording media and magnetic storage
- Publication number 20040197607
- Publication date Oct 7, 2004
- Hitachi, Ltd
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording media, manufacturing process of th...
- Publication number 20040170798
- Publication date Sep 2, 2004
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium and its manufacturing method and magnetic...
- Publication number 20040157083
- Publication date Aug 12, 2004
- Hitachi Global Storage Technologies Japan, Ltd.
- Yoshio Takahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording medium, magnetic recording apparatus using the s...
- Publication number 20040106009
- Publication date Jun 3, 2004
- Hitachi, Ltd.
- Atsushi Nakamura
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic recording media, manufacturing process of th...
- Publication number 20040009375
- Publication date Jan 15, 2004
- Hitachi, Ltd.
- Kiwamu Tanahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording media and magnetic storage apparatus using the same
- Publication number 20030218834
- Publication date Nov 27, 2003
- Tetsuya Kanbe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Kiwamu Tanahashi

Person

Patents Grantslast 30 patents

Soft magnetic underlayer having high temperature robustness for hig...

Perpendicular magnetic recording medium with grain boundary control...

Method for manufacturing perpendicular magnetic recording medium

Perpendicular magnetic recording medium (PMRM) and magnetic storage...

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

Perpendicular magnetic recording medium and magnetic storage device...

Perpendicular magnetic recording medium having FCC seed layers

Magnetic recording medium using layers having higher- and lower-HK...

Methods and apparatus to fabricate soft magnetic film with preferre...

Perpendicular magnetic recording medium and system having a magneti...

Perpendicular magnetic recording medium, manufacturing process of t...

Manufacturing process for perpendicular magnetic recording medium

Perpendicular magnetic recording media

Perpendicular magnetic recording medium and magnetic recording/repr...

Magnetic recording medium and its manufacturing method and magnetic...

Perpendicular magnetic recording media, manufacturing process of th...

Perpendicular magnetic recording medium, manufacturing process of t...

Perpendicular magnetic recording media and magnetic storage

Magnetic recording media and magnetic recording system using the same

Magnetic recording media and magnetic storage apparatus using the same

Perpendicular magnetic recording media, manufacturing process of th...

Method for testing or recording servo signal on perpendicular magne...

Magnetic recording medium and a magnetic storage apparatus

Magnetic recording medium, magnetic recording apparatus using the s...

Method for testing or recording servo signal on perpendicular magne...

Perpendicular magnetic recording media and magnetic storage apparat...

Perpendicular magnetic recording media

Perpendicular magnetic recording media and magnetic storage apparat...

Perpendicular magnetic recording media, manufacturing process of th...

Magnetic recording medium and its manufacturing method and magnetic...

Patents Applicationslast 30 patents

PERPENDICULAR MAGNETIC RECORDING MEDIA HAVING AN EXTREMELY LOW HK L...

PERPENDICULAR RECORDING MEDIA HAVING HIGH-TEMPERATURE ROBUSTNESS

SOFT MAGNETIC UNDERLAYER HAVING HIGH TEMPERATURE ROBUSTNESS FOR HIG...

PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH GRAIN BOUNDARY CONTROL...

PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH GRAIN BOUNDARY CONTROL...

PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH AN INVERTED Hk STRUCTURE

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

PERPENDICULAR MAGNETIC RECORDING MEDIUM, MANUFACTURING PROCESS OF T...

MAGNETIC RECORDING MEDIUM USING LAYERS HAVING HIGHER- AND LOWER-HK...

PERPENDICULAR MAGNETIC RECORDING MEDIUM, MANUFACTURING PROCESS OF T...

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

Perpendicular magnetic recording medium and magnetic storage device...

METHODS AND APPARATUS TO FABRICATE SOFT MAGNETIC FILM WITH PREFERRE...

Perpendicular magnetic recording medium

Perpendicular magnetic recording medium and hard disk drive using t...

Perpendicular magnetic recording medium and method for manufacturin...

Manufacturing process for perpendicular magnetic recording medium

Method for manufacturing perpendicular magnetic recording medium

Perpendicular magnetic recording medium, manufacturing process of t...

Method for testing or recording servo signal on perpendicular magne...

Magnetic recording medium, magnetic recording apparatus using the s...

Perpendicular magnetic recording media

Perpendicular magnetic recording medium and magnetic recording/repr...

Perpendicular magnetic recording medium, manufacturing process of t...

Perpendicular magnetic recording media and magnetic storage

Perpendicular magnetic recording media, manufacturing process of th...

Magnetic recording medium and its manufacturing method and magnetic...

Magnetic recording medium, magnetic recording apparatus using the s...

Perpendicular magnetic recording media, manufacturing process of th...

Magnetic recording media and magnetic storage apparatus using the same