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US Patent 9919553 Embossing tool and methods of preparation

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Yu Li0

Donald A. Schultz0

Du Quy Le0

Hanan Liu0

Yih-Ming Kang0

Date of Patent

March 20, 2018

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Patent Application Number

148415600

Date Filed

August 31, 2015

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Patent Citations Received

US Patent 11977310 Electrophoretic medium

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US Patent 11656526 Switchable light-collimating layer including bistable electrophoretic fluid

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US Patent 11774827 Reflective microcells for electrophoretic displays and methods of making the same

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Patent abstract

The present invention is directed to an embossing tool having a microstructure on its surface wherein the surface of the embossing tool has a thin layer of gold or an alloy thereof. Such an embossing tool not only can reduce adhesion between the surface of the embossing tool and a cured material, but also does not cause any significant change to the profile of the microstructure.

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