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:
Dec. 16, 2025
Filed:
Apr. 28, 2021
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Mitsutake Suematsu, Tokyo, JP;
Shinya Ikeda, Niigata, JP;
Noriyuki Kato, Tokyo, JP;
Mitsuteru Kondo, Tokyo, JP;
Katsushi Nishimori, Tokyo, JP;
Yutaro Harada, Tokyo, JP;
Shoko Murata Suzuki, Tokyo, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Abstract
Provided is a polycarbonate resin which maintains favorable properties as an optical material while having fluidity suitable for molding. Furthermore, provided are an optical lens and an optical film that use the polycarbonate resin. The polycarbonate resin is characterized by comprising a component unit (A) expressed by general formula (1) and a component unit (B) expressed by general formula (2).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile