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Shinji Eda
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Yamanashi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Glass substrate for a magnetic disk and magnetic disk
Patent number
9,085,486
Issue date
Jul 21, 2015
Hoya Corporation
Shinji Eda
G11 - INFORMATION STORAGE
Information
Patent Grant
Glass substrate for magnetic disk and manufacturing method thereof
Patent number
9,085,479
Issue date
Jul 21, 2015
Hoya Corporation
Shinji Eda
B24 - GRINDING POLISHING
Information
Patent Grant
Glass substrate for magnetic disk and manufacturing method thereof
Patent number
9,003,834
Issue date
Apr 14, 2015
Hoya Corporation
Shinji Eda
G11 - INFORMATION STORAGE
Information
Patent Grant
Manufacturing method of glass substrate for magnetic disk, manufact...
Patent number
8,973,404
Issue date
Mar 10, 2015
Hoya Corporation
Shinji Eda
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of manufacturing a glass substrate for magnetic disk
Patent number
8,869,559
Issue date
Oct 28, 2014
Hoya Corporation
Hideki Isono
G11 - INFORMATION STORAGE
Information
Patent Grant
Manufacturing method of a glass blank for magnetic disk and manufac...
Patent number
8,806,893
Issue date
Aug 19, 2014
Hoya Corporation
Hideki Isono
G11 - INFORMATION STORAGE
Information
Patent Grant
Manufacturing method for a glass substrate for magnetic disk
Patent number
8,806,895
Issue date
Aug 19, 2014
Hoya Corporation
Shinji Eda
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Glass substrate for magnetic disk and manufacturing method of the same
Patent number
8,783,063
Issue date
Jul 22, 2014
Hoya Corporation
Kinobu Osakabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Glass substrate for a magnetic disk and magnetic disk
Patent number
8,785,010
Issue date
Jul 22, 2014
Hoya Corporation
Shinji Eda
G11 - INFORMATION STORAGE
Information
Patent Grant
Glass substrate for magnetic disk and manufacturing method thereof
Patent number
8,733,129
Issue date
May 27, 2014
Hoya Corporation
Shinji Eda
B24 - GRINDING POLISHING
Information
Patent Grant
Method of manufacturing glass substrate for magnetic disk and syste...
Patent number
8,640,497
Issue date
Feb 4, 2014
Hoya Corporation
Ryuuichi Kashima
B24 - GRINDING POLISHING
Information
Patent Grant
Glass substrate for magnetic disk and manufacturing method of the same
Patent number
8,119,267
Issue date
Feb 21, 2012
Hoya Corporation
Kinobu Osakabe
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk glass substrate manufacturing method
Patent number
7,703,303
Issue date
Apr 27, 2010
Hoya Corporation
Hideki Isono
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Chemically reinforced glass manufacture method, information recordi...
Patent number
6,534,120
Issue date
Mar 18, 2003
Hoya Corporation
Jun Ozawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Process for producing glass substrate for information recording med...
Patent number
6,430,965
Issue date
Aug 13, 2002
Hoya Corporation
Shinji Eda
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Process for producing glass substrate for information recording med...
Patent number
6,427,489
Issue date
Aug 6, 2002
Hoya Corporation
Shinji Eda
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of fabricating glass substrate for magnetic disk and method...
Patent number
6,134,918
Issue date
Oct 24, 2000
Hoya Corporation
Nobuyuki Eto
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Process for producing glass substrate for information recording medium
Patent number
6,119,483
Issue date
Sep 19, 2000
Hoya Corporation
Koji Takahashi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Magnetic disk drive with brittle disks
Patent number
4,945,432
Issue date
Jul 31, 1990
Hoya Electronics Corporation
Takeo Matsudaira
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
GLASS SUBSTRATE FOR MAGNETIC DISK AND MANUFACTURING METHOD THEREOF
Publication number
20150199989
Publication date
Jul 16, 2015
Hoya Corporation
Shinji EDA
G11 - INFORMATION STORAGE
Information
Patent Application
GLASS SUBSTRATE FOR A MAGNETIC DISK AND MAGNETIC DISK
Publication number
20140287269
Publication date
Sep 25, 2014
HOYA CORPORATION
Shinji EDA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
GLASS SUBSTRATE FOR MAGNETIC DISK AND MANUFACTURING METHOD THEREOF
Publication number
20140223964
Publication date
Aug 14, 2014
HOYA CORPORATION
Shinji Eda
G11 - INFORMATION STORAGE
Information
Patent Application
MANUFACTURING METHOD OF A GLASS BLANK FOR MAGNETIC DISK AND MANUFAC...
Publication number
20130042649
Publication date
Feb 21, 2013
HOYA CORPORATION
Hideki ISONO
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD OF MANUFACTURING A GLASS SUBSTRATE FOR MAGNETIC DISK
Publication number
20130025320
Publication date
Jan 31, 2013
HOYA CORPORATION
Hideki Isono
G11 - INFORMATION STORAGE
Information
Patent Application
MANUFACTURING METHOD OF GLASS SUBSTRATE FOR MAGNETIC DISK, MANUFACT...
Publication number
20120151967
Publication date
Jun 21, 2012
Shinji Eda
G11 - INFORMATION STORAGE
Information
Patent Application
MANUFACTURING METHOD FOR A GLASS SUBSTRATE FOR MAGNETIC DISK
Publication number
20120144865
Publication date
Jun 14, 2012
HOYA CORPORATION
Shinji EDA
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
GLASS SUBSTRATE FOR MAGNETIC DISK AND MANUFACTURING METHOD OF THE SAME
Publication number
20120135153
Publication date
May 31, 2012
HOYA CORPORATION
Kinobu OSAKABE
G11 - INFORMATION STORAGE
Information
Patent Application
GLASS SUBSTRATE FOR A MAGNETIC DISK AND MAGNETIC DISK
Publication number
20110171415
Publication date
Jul 14, 2011
HOYA CORPORATION
Shinji Eda
G11 - INFORMATION STORAGE
Information
Patent Application
GLASS SUBSTRATE FOR MAGNETIC DISK AND MANUFACTURING METHOD THEREOF
Publication number
20110159320
Publication date
Jun 30, 2011
HOYA CORPORATION
Shinji EDA
B24 - GRINDING POLISHING
Information
Patent Application
GLASS SUBSTRATE FOR MAGNETIC DISK AND MANUFACTURING METHOD THEREOF
Publication number
20110159321
Publication date
Jun 30, 2011
HOYA CORPORATION
Shinji Eda
B24 - GRINDING POLISHING
Information
Patent Application
GLASS SUBSTRATE FOR MAGNETIC DISK AND MANUFACTURING METHOD OF THE SAME
Publication number
20100190038
Publication date
Jul 29, 2010
HOYA CORPORATION
Kinobu Osakabe
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD OF MANUFACTURING GLASS SUBSTRATE FOR MAGNETIC DISK AND SYSTE...
Publication number
20100024484
Publication date
Feb 4, 2010
HOYA CORPORATION
Ryuuichi Kashima
B24 - GRINDING POLISHING
Information
Patent Application
Magnetic disk glass substrate manufacturing method and magnetic dis...
Publication number
20050284179
Publication date
Dec 29, 2005
Hoya Corporation
Hideki Isono
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Process for producing glass substrate for information recording med...
Publication number
20010039810
Publication date
Nov 15, 2001
HOYA CORPORATION
Shinji Eda
C03 - GLASS MINERAL OR SLAG WOOL