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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 9529120 B1

PDFFull Text
Date of Patent:
Dec. 27, 2016

Filed:

Jul. 30, 2012

Light-shielding coating, light-shielding film, and optical element

Applicants:

Katsumoto Hosokawa, Tokyo, JP;

Shuhei Yamamoto, Tokyo, JP;

Inventors:

Katsumoto Hosokawa, Tokyo, JP;

Shuhei Yamamoto, Tokyo, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Canon U.S.A., Inc. IP Division

Primary Examiner:

Scott J Sugarman

Assistant Examiner:

Kristina Deherrera

Int. Cl.
CPC ...
G02B 1/10 (2015.01); C09D 5/00 (2006.01); C09D 5/32 (2006.01); C09D 7/12 (2006.01); C09D 163/00 (2006.01); G02B 5/22 (2006.01); G02B 27/00 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
G02B 1/10 (2013.01); C09D 5/006 (2013.01); C09D 5/32 (2013.01); C09D 7/1266 (2013.01); C09D 163/00 (2013.01); G02B 1/04 (2013.01); G02B 5/223 (2013.01); G02B 27/0018 (2013.01);
Abstract

The present invention relates to a light-shielding coating including a resin composition containing at least an epoxy resin, a coloring agent including a dye, and titania fine particles having an average primary particle diameter of 1 nm or more and 100 nm or less and including an organic solvent dissolving or dispersing the resin composition. The concentration of the titania fine particles is 20% by mass or more and 60% by mass or less of the resin composition.

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Hosokawa, Katsumoto. (2016). Light-shielding coating, light-shielding film, and optical element (U.S. Patent No. 9529120). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9529120

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

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