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Yoshihiro Matsuno
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Osaka-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Glass substrate for magnetic disk and method for manufacturing
Patent number
6,899,943
Issue date
May 31, 2005
Hoya Corporation
Hiroshi Ikeda
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Glass substrate for use as information recording medium and method...
Patent number
6,576,353
Issue date
Jun 10, 2003
Nippon Sheet Glass Co., Ltd.
Kazuishi Mitani
G11 - INFORMATION STORAGE
Information
Patent Grant
Glass substrate for magnetic disk and method for manufacturing
Patent number
6,553,788
Issue date
Apr 29, 2003
Nippon Sheet Glass Co., Ltd.
Hiroshi Ikeda
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of manufacturing glass substrate for use as information reco...
Patent number
6,550,278
Issue date
Apr 22, 2003
Nippon Sheet Glass Co., Ltd.
Kazuishi Mitani
G11 - INFORMATION STORAGE
Information
Patent Grant
Glass substrate for information recording medium, manufacturing met...
Patent number
6,547,980
Issue date
Apr 15, 2003
Nippon Sheet Glass Co., Ltd.
Junji Kurachi
G11 - INFORMATION STORAGE
Information
Patent Grant
Substrate for information recording media
Patent number
6,475,599
Issue date
Nov 5, 2002
Nippon Sheet Glass Co., Ltd.
Yasuhiro Saito
G11 - INFORMATION STORAGE
Information
Patent Grant
Hydrofluoric acid etched substrate for information recording medium
Patent number
6,440,531
Issue date
Aug 27, 2002
Nippon Sheet Glass Co., Ltd.
Junji Kurachi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Glass substrate for magnetic disks
Patent number
6,132,843
Issue date
Oct 17, 2000
Nippon Sheet Glass Do., Ltd.
Yasunao Kuroda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Optical part
Patent number
5,638,479
Issue date
Jun 10, 1997
Nippon Sheet Glass Co., Ltd.
Manabu Takami
G02 - OPTICS
Information
Patent Grant
Process for producing a minute-patterned substrate
Patent number
5,234,717
Issue date
Aug 10, 1993
Nippon Sheet Glass Co., Ltd.
Yoshihiro Matsuno
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Substrate with fine grooves and method for manufacturing the same
Patent number
4,810,547
Issue date
Mar 7, 1989
Nippon Sheet Glass Co., Ltd.
Tsutomu Minami
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Glass substrate for magnetic disk and method for manufacturing
Publication number
20030230112
Publication date
Dec 18, 2003
Hiroshi Ikeda
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Glass substrate for information recording medium, manufacturing met...
Publication number
20030064196
Publication date
Apr 3, 2003
NIPPON SHEET GLASS CO., LTD.
Junji Kurachi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Glass substrate for use as information recording medium and method...
Publication number
20030031878
Publication date
Feb 13, 2003
NIPPON SHEET GLASS CO., LTD.
Kazuishi Mitani
C03 - GLASS MINERAL OR SLAG WOOL