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.:
Date of Patent:
Mar. 24, 2026
Filed:
Jul. 10, 2020
Toray Industries, Inc., Tokyo, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
A pyrromethene-boron complex in one aspect of the present invention is a compound with a molecular weight of 1000 or more, represented by the following general formula (1), in which at least two of Rto Rare groups represented by the following general formula (2), and in the general formula (1), X is C—Ror N; Rto R, other than the groups represented by the following general formula (2), each are the same or different, and selected from the candidate group consisting of alkyl and other groups; and in the general formula (2), Lis selected from the candidate group consisting of oxygen and other groups; Lis, for example, alkylene; when Lis alkylene, the carbon atom bound to L, in the alkylene group, is secondary or tertiary carbon; Ris, for example, cyano; n is an integer of 0 to 5; m is an integer of 1 to 5; and m-(L-(R)) each comprises three or more ring structures.