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Yuichi Muramatsu
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Saitama-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
High variable power zoom lens
Patent number
8,400,715
Issue date
Mar 19, 2013
Tamron Co., Ltd.
Akio Arakawa
G02 - OPTICS
Information
Patent Grant
High variable power zoom lens
Patent number
8,238,038
Issue date
Aug 7, 2012
Tamron Co., Ltd.
Akio Arakawa
G02 - OPTICS
Information
Patent Grant
Large-aperture zoom lens
Patent number
7,889,438
Issue date
Feb 15, 2011
Tamron Co., Ltd.
Yuichi Muramatsu
G02 - OPTICS
Information
Patent Grant
Wide-angle zoom lens
Patent number
7,773,308
Issue date
Aug 10, 2010
Tamron Co., Ltd.
Yuichi Muramatsu
G02 - OPTICS
Information
Patent Grant
Zoom lens employing lens eccentricity approach to compensate for im...
Patent number
7,554,745
Issue date
Jun 30, 2009
Tamron Co., Ltd.
Yuichi Muramatsu
G02 - OPTICS
Information
Patent Grant
Macro lens
Patent number
7,286,303
Issue date
Oct 23, 2007
Tamron Co., Ltd.
Akio Arakawa
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
HIGH VARIABLE POWER ZOOM LENS
Publication number
20110164325
Publication date
Jul 7, 2011
TAMRON CO., LTD.
Akio ARAKAWA
G02 - OPTICS
Information
Patent Application
Large-aperture zoom lens
Publication number
20100290131
Publication date
Nov 18, 2010
Yuichi Muramatsu
G02 - OPTICS
Information
Patent Application
High variable power zoom lens
Publication number
20100033821
Publication date
Feb 11, 2010
Akio Arakawa
G02 - OPTICS
Information
Patent Application
Wide-angle zoom lens
Publication number
20090190233
Publication date
Jul 30, 2009
Yuichi Muramatsu
G02 - OPTICS
Information
Patent Application
Zoom lens employing lens eccentricity approach to compensate for im...
Publication number
20090015939
Publication date
Jan 15, 2009
Yuichi Muramatsu
G02 - OPTICS
Information
Patent Application
Macro lens
Publication number
20060285230
Publication date
Dec 21, 2006
Akio Arakawa
G02 - OPTICS
Information
Patent Application
Stop apparatus, a lens and a video camera having the stop apparatus
Publication number
20050025477
Publication date
Feb 3, 2005
Yuko Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY