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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 12287501 B1

PDFFull Text
Date of Patent:
Apr. 29, 2025

Filed:

May. 20, 2020

Light-absorbing composition, light-absorbing film, and optical filter

Applicant:

Nippon Sheet Glass Company, Limited, Tokyo, JP;

Inventors:

Yuichiro Kubo, Tokyo, JP;

Katsuhide Shimmo, Kanagawa, JP;

Lei Cai, Kanagawa, JP;

Hitomi Masuda, Tokyo, JP;

Assignee:

NIPPON SHEET GLASS COMPANY, LIMITED, Tokyo, JP;

Attorney:

HSML P.C.

Primary Examiner:

Bijan Ahvazi

Int. Cl.
CPC ...
G02B 5/00 (2005.12); C08K 5/5317 (2005.12); C09D 5/32 (2005.12); C09D 7/63 (2017.12); C09D 183/04 (2005.12); G02B 5/20 (2005.12);
U.S. Cl.
CPC ...
G02B 5/208 (2012.12); C08K 5/5317 (2012.12); C09D 5/32 (2012.12); C09D 7/63 (2017.12); C09D 183/04 (2012.12); G02B 5/003 (2012.12);
Abstract

The light-absorbing composition according to the present invention includes: a light absorber made of a phosphonic acid represented by the following formula (A) and copper ion; and a curable resin. Alight-absorbing film having desired properties can be provided by curing a coating film of the light-absorbing composition. In the formula (A), Rto Rare each independently a hydrogen atom, a halogen atom, a hydroxy group, or a nitro group, and n represents an integer of 1 to 3.

Find Patent Forward Citations

Kubo, Yuichiro. (2025). Light-absorbing composition, light-absorbing film, and optical filter (U.S. Patent No. 12287501). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12287501

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

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