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:
Feb. 04, 2025
Filed:
Jul. 31, 2023
Nissan North America, Inc., Franklin, TN (US);
Sogol Lotfi, San Jose, CA (US);
Manas Likhit Holekevi Chandrappa, Santa Clara, CA (US);
Balachandran Gadaguntla Radhakrishnan, Palo Alto, CA (US);
Shigemasa Kuwata, Palo Alto, CA (US);
Shunta Nabetani, Kanagawa, JP;
Yoshimi Ota, Kanagawa, JP;
Masanobu Uchimura, Palo Alto, CA (US);
Simran Kumari, Los Angeles, CA (US);
Nissan North America, Inc., Franklin, TN (US);
Abstract
A chiral azobenzene dopant with helical twisting power has a structure represented by the following formula (I): wherein Z and Z' are independently selected from the group consisting of naphthalene and phenanthrene; when Z or Z′ is naphthalene, the naphthalene optionally has Rat the 6 position and Rat the 6′ position; when Z or Z′ is phenanthrene, the phenanthrene optionally has Rat the 7 position and Rat the 7′ position; R, R, R, and Rare independently selected from the group consisting of an alkyl group having 1 to 20 carbons, an alkoxy group having 1 to 20 carbons, an aryl group having 6 to 20 carbons, and an aryloxy group having 6 to 20 carbons; and on any R, R, R, and R, on any CHa CHis optionally attached by replacing a hydrogen on a CH.