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Takeo Watanabe
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Substrate for information recording media and manufacturing method...
Patent number
7,736,770
Issue date
Jun 15, 2010
Nippon Sheet Glass Co., Ltd.
Masamichi Kesuka
G11 - INFORMATION STORAGE
Information
Patent Grant
Substrate for information recording media and manufacturing method...
Patent number
7,604,882
Issue date
Oct 20, 2009
Nippon Sheet Glass Co., Ltd.
Masamichi Kezuka
G11 - INFORMATION STORAGE
Information
Patent Grant
Substrate for information recording media and manufacturing method...
Patent number
7,065,984
Issue date
Jun 27, 2006
Nippon Sheet Glass Co., Ltd.
Masamichi Kezuka
G11 - INFORMATION STORAGE
Information
Patent Grant
Substrate for information recording media and manufacturing method...
Patent number
7,040,953
Issue date
May 9, 2006
Hoya Corporation
Kensuke Matsuno
B24 - GRINDING POLISHING
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
METHOD OF MANUFACTURING GLASS SUBSTRATE FOR INFORMATION RECORDING M...
Patent number
6,845,635
Issue date
Jan 25, 2005
Hoya Corporation
Takeo Watanabe
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Glass substrate for magnetic recording media and manufacturing meth...
Patent number
6,808,784
Issue date
Oct 26, 2004
Hoya Corporation
Junichi Hashimoto
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
Resist patterns and method of forming resist patterns
Patent number
5,374,502
Issue date
Dec 20, 1994
Sortec Corporation
Toshihiko Tanaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Resist patterns and method of forming resist patterns
Patent number
5,326,672
Issue date
Jul 5, 1994
Sortec Corporation
Toshihiko Tanaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
SUBSTRATE FOR INFORMATION RECORDING MEDIA AND MANUFACTURING METHOD...
Publication number
20090286454
Publication date
Nov 19, 2009
NIPPON SHEET GLASS CO., LTD.
Masamichi Kezuka
G11 - INFORMATION STORAGE
Information
Patent Application
Substrate for information recording media and manufacturing method...
Publication number
20060188756
Publication date
Aug 24, 2006
NIPPON SHEET GLASS CO., LTD.
Masamichi Kezuka
G11 - INFORMATION STORAGE
Information
Patent Application
Clamping jig for glass substrate, buffer sheet, method for processi...
Publication number
20050101230
Publication date
May 12, 2005
HOYA CORPORATION
Takamasa Yoshikawa
B24 - GRINDING POLISHING
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
Substrate for information recording media and manufacturing method...
Publication number
20030121285
Publication date
Jul 3, 2003
NIPPON SHEET GLASS CO., LTD.
Masamichi Kesuka
G11 - INFORMATION STORAGE
Information
Patent Application
Substrate for information recording media and manufacturing method...
Publication number
20030109202
Publication date
Jun 12, 2003
NIPPON SHEET GLASS CO., LTD.
Kensuke Matsuno
B24 - GRINDING POLISHING
Information
Patent Application
Clamping jig for glass substrate, buffer sheet, method for processi...
Publication number
20030082999
Publication date
May 1, 2003
Nippon Sheet Glass Co., Ltd.
Takamasa Yoshikawa
B24 - GRINDING POLISHING
Information
Patent Application
Glass substrate for magnetic recording media and manufacturing meth...
Publication number
20020197437
Publication date
Dec 26, 2002
Junichi Hashimoto
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Method of manufacturing glass substrate for information recording m...
Publication number
20020108400
Publication date
Aug 15, 2002
Takeo Watanabe
C03 - GLASS MINERAL OR SLAG WOOL