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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10625489 B1

PDFFull Text
Date of Patent:
Apr. 21, 2020

Filed:

Dec. 21, 2016

Optical member and method for producing optical member

Applicant:

Sharp Kabushiki Kaisha, Sakai, Osaka, JP;

Inventors:

Hidekazu Hayashi, Sakai, JP;

Tokio Taguchi, Sakai, JP;

Nobuaki Yamada, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;

Attorney:

ScienBiziP, P.C.

Primary Examiner:

Nancy R Johnson

Int. Cl.
CPC ...
B32B 3/30 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); C23C 14/00 (2006.01); C23C 14/10 (2006.01); C23C 14/34 (2006.01); G02B 1/118 (2015.01); G02B 1/18 (2015.01); B32B 7/02 (2019.01);
U.S. Cl.
CPC ...
B32B 3/30 (2013.01); B32B 7/02 (2013.01); B32B 27/08 (2013.01); B32B 27/308 (2013.01); C23C 14/0036 (2013.01); C23C 14/10 (2013.01); C23C 14/34 (2013.01); G02B 1/118 (2013.01); G02B 1/18 (2015.01); B32B 2250/02 (2013.01); B32B 2250/24 (2013.01); B32B 2255/10 (2013.01); B32B 2255/20 (2013.01); B32B 2307/728 (2013.01); B32B 2307/754 (2013.01);
Abstract

The present invention provides an optical member excellent in antifouling properties, rubbing resistance, and antifog properties. The optical member of the present invention includes, on a surface thereof, an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light, the projections each including a hydrophilic portion at its tip. Preferably, each of the projections is formed from a hydrophobic resin and has its tip covered with a hydrophilic material, the hydrophilic material contains silicon dioxide, and the hydrophilic material has a thickness of 30 nm or smaller.

Find Patent Forward Citations

Hayashi, Hidekazu. (2020). Optical member and method for producing optical member (U.S. Patent No. 10625489). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10625489

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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