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Michihiro Tadokoro
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Light wavefront measuring instrument, light wavefront measuring met...
Patent number
7,554,675
Issue date
Jun 30, 2009
Mitsubishi Denki Kabushiki Kaisha
Nobuo Takeshita
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording and reproducing apparatus having a pickup head in...
Patent number
5,313,441
Issue date
May 17, 1994
Mitsubishi Denki Kabushiki Kaisha
Hitoshi Imai
G11 - INFORMATION STORAGE
Information
Patent Grant
Wavelength selective optical recording and reproducing method
Patent number
5,231,626
Issue date
Jul 27, 1993
Mitsubishi Denki K.K.
Michihiro Tadokoro
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording and reproducing apparatus
Patent number
5,218,586
Issue date
Jun 8, 1993
Mitsubishi Denki Kabushiki Kaisha
Michihiro Tadokoro
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical head for optical information recording/reproducing apparatus
Patent number
5,107,409
Issue date
Apr 21, 1992
Mitsubishi Denki Kabushiki Kaisha
Michihiro Tadokoro
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording and/or reproducing apparatus having a temperature...
Patent number
5,051,975
Issue date
Sep 24, 1991
Mitsubishi Denki Kabushiki Kaisha
Michihiro Tadokoro
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optic information-carrying medium including three magnetic...
Patent number
5,016,232
Issue date
May 14, 1991
Mitsubishi Denki Kabushiki Kaisha
Michihiro Tadokoro
G11 - INFORMATION STORAGE
Information
Patent Grant
Focusing error detecting apparatus with light switching and detecto...
Patent number
5,004,900
Issue date
Apr 2, 1991
Mitsubishi Denki Kabushiki Kaisha
Masatomo Seya
G02 - OPTICS
Information
Patent Grant
Optical head including a collimator having lenses of different foca...
Patent number
4,965,785
Issue date
Oct 23, 1990
Mitsubishi Denki Kabushiki Kaisha
Michihiro Tadokoro
G11 - INFORMATION STORAGE
Information
Patent Grant
Information-carrying medium equipment for magneto-optic reading and...
Patent number
4,908,809
Issue date
Mar 13, 1990
Mitsubishi Denki Kabushiki Kaisha
Michihiro Tadokoro
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical reading or writing apparatus
Patent number
4,881,204
Issue date
Nov 14, 1989
Mitsubishi Denki Kabushiki Kaisha
Michihiro Tadokoro
G11 - INFORMATION STORAGE
Information
Patent Grant
Wavelength selective optical data storage system
Patent number
4,876,666
Issue date
Oct 24, 1989
Mitsubishi Denki Kabushiki Kaisha
Hitoshi Imai
G11 - INFORMATION STORAGE
Information
Patent Grant
Wavelength selective optical data storage system
Patent number
4,868,807
Issue date
Sep 19, 1989
Mitsubishi Denki Kabushiki Kaisha
Kazuo Okada
G11 - INFORMATION STORAGE
Information
Patent Grant
Focus detecting apparatus utilizing reflecting surface having varia...
Patent number
4,862,442
Issue date
Aug 29, 1989
Mitsubishi Denki Kabushiki Kaisha
Michihiro Tadokoro
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical head for an optical recording and reproducing apparatus
Patent number
4,841,507
Issue date
Jun 20, 1989
Mitsubishi Denki Kabushiki Kaisha
Hitoshi Imai
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Light wavefront measuring instrument, light wavefront measuring met...
Publication number
20060227335
Publication date
Oct 12, 2006
Nobuo Takeshita
G01 - MEASURING TESTING