US Patent 7880979 Aperture stop and manufacturing method thereof
Patent 7880979 was granted and assigned to Hon Hai Precision Industry Co Ltd on February, 2011 by the United States Patent and Trademark Office.
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Patent abstract
An aperture stop includes a body and a black film. The body is stainless steel and the black film is disposed on at least two corresponding ends of the body. A manufacturing method of the aperture stop is also provided. The aperture stop is produced using the characteristics of the stainless steel body.
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Patent Inventor Names
Chia-Chun Chang0
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US Patent 07880979 Aperture stop and manufacturing method thereof US Patent 7880979 Aperture stop and manufacturing method thereof
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Patent Number
07880979
Patent Number
7880979
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Official Website
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US Patent 07880979 Aperture stop and manufacturing method thereof
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Is a
Current assignee
Patent jurisdiction
Patent number
07880979
Date of patent
February 1, 2011
Patent application number
12342234
Date Filed
December 23, 2008
Patent primary examiner
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