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Eishin YAMAKAWA
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Chiba, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of manufacturing magnetic recording medium
Patent number
11,322,176
Issue date
May 3, 2022
Showa Denko K.K.
Hiroshi Tani
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing a thin film, method for producing a magnetic d...
Patent number
10,888,895
Issue date
Jan 12, 2021
Showa Denko K.K.
Hiroshi Tani
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Magnetic recording medium, and magnetic recording and reproducing a...
Patent number
10,199,064
Issue date
Feb 5, 2019
Showa Denko K.K.
Yoshihiko Maruyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording and reproducing ap...
Patent number
10,074,396
Issue date
Sep 11, 2018
Showa Denko K.K.
Eishin Yamakawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Perpendicular magnetic recording medium and magnetic storage apparatus
Patent number
9,640,213
Issue date
May 2, 2017
Showa Denko K.K.
Kota Hasegawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for manufacturing storage medium
Patent number
8,296,931
Issue date
Oct 30, 2012
Showa Denko K.K.
Hiroyoshi Okumura
B24 - GRINDING POLISHING
Information
Patent Grant
Manufacturing method and evaluating method of magnetic recording me...
Patent number
7,842,331
Issue date
Nov 30, 2010
Showa Denko K.K.
Eishin Yamakawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Composition, magnetic recording medium, head slider, and magnetic r...
Patent number
7,534,750
Issue date
May 19, 2009
Fujitsu Limited
Hiroshi Chiba
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Magnetic disk drive having a surface coating on a magnetic disk
Patent number
7,335,701
Issue date
Feb 26, 2008
Fujitsu Limited
Keiji Watanabe
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Magnetic recording device having a head slider utilizing a water-re...
Patent number
7,259,937
Issue date
Aug 21, 2007
Fujitsu Limited
Hiroshi Chiba
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk drive having a surface coating on a magnetic disk
Patent number
7,081,277
Issue date
Jul 25, 2006
Fujitsu Limited
Keiji Watanabe
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method and apparatus for preparing fluorine-based solvent
Patent number
6,670,309
Issue date
Dec 30, 2003
Fujitsu Limited
Hiroshi Chiba
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Magnetic recording medium and magnetic head having carbon protectiv...
Patent number
6,132,875
Issue date
Oct 17, 2000
Fujitsu Limited
Katsumi Kiuchi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method of forming lubricant layer on magnetic disc, device for form...
Patent number
6,110,524
Issue date
Aug 29, 2000
Fujitsu Limited
Yoshihiro Mitobe
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM
Publication number
20200395045
Publication date
Dec 17, 2020
SHOWA DENKO K.K.
Hiroshi TANI
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD FOR PRODUCING A THIN FILM, METHOD FOR PRODUCING A MAGNETIC D...
Publication number
20180257105
Publication date
Sep 13, 2018
SHOWA DENKO K.K.
Hiroshi TANI
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING AP...
Publication number
20170084305
Publication date
Mar 23, 2017
SHOWA DENKO K.K.
Eishin YAMAKAWA
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING AND REPRODUCING A...
Publication number
20160240219
Publication date
Aug 18, 2016
SHOWA DENKO K.K.
Yoshihiko MARUYAMA
G11 - INFORMATION STORAGE
Information
Patent Application
PERPENDICULAR MAGNETIC RECORDING MEDIUM AND MAGNETIC STORAGE APPARATUS
Publication number
20160148633
Publication date
May 26, 2016
SHOWA DENKO K.K.
Kota HASEGAWA
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND METHOD OF FABRICATING THE SAME
Publication number
20090252992
Publication date
Oct 8, 2009
Fujitsu Limited
Makoto Okada
G11 - INFORMATION STORAGE
Information
Patent Application
STORAGE DEVICE, STORAGE MEDIUM, AND METHOD FOR MANUFACTURING STORAG...
Publication number
20090059416
Publication date
Mar 5, 2009
Fujitsu Limited
Makoto Okada
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD FOR MANUFACTURING STORAGE MEDIUM
Publication number
20090061742
Publication date
Mar 5, 2009
Fujitsu Limited
Hiroyoshi Okumura
B24 - GRINDING POLISHING
Information
Patent Application
Manufacturing method and evaluating method of magnetic recording me...
Publication number
20090053394
Publication date
Feb 26, 2009
FUJITSU LIMITED
Eishin Yamakawa
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic disk drive having a surface coating on a magnetic disk
Publication number
20080081220
Publication date
Apr 3, 2008
Fujitsu Limited
Keiji Watanabe
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Lubricant, magnetic recording medium and head slider
Publication number
20070203037
Publication date
Aug 30, 2007
FUJITSU LIMITED
Hiroshi Chiba
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Application
Magnetic disk drive having a surface coating on a magnetic disk
Publication number
20060241247
Publication date
Oct 26, 2006
Keiji Watanabe
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Composition, magnetic recording medium, head slider, and magnetic r...
Publication number
20060106260
Publication date
May 18, 2006
Hiroshi Chiba
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Head slider and magnetic recording device
Publication number
20050264937
Publication date
Dec 1, 2005
FUJITSU LIMITED
Hiroshi Chiba
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for preparing fluorine-based solvent
Publication number
20020035302
Publication date
Mar 21, 2002
FUJITSU LIMITED
Hiroshi Chiba
C07 - ORGANIC CHEMISTRY