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. 16, 2021
Filed:
Sep. 27, 2017
Applicant:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Inventors:
Yasuaki Yoshimura, Kanagawa, JP;
Eiichi Honda, Kanagawa, JP;
Keita Noguchi, Kanagawa, JP;
Yuichiro Satake, Kanagawa, JP;
Assignee:
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G 63/199 (2006.01); C08G 63/06 (2006.01); C08L 67/02 (2006.01); G02B 1/04 (2006.01); G02B 3/04 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
C08G 63/199 (2013.01); C08G 63/06 (2013.01); C08L 67/025 (2013.01); G02B 1/041 (2013.01); G02B 3/04 (2013.01); C08L 2201/10 (2013.01); H04N 5/2254 (2013.01);
Abstract
An object is to provide an optical lens having low water-absorbing capacity and superior in heat resistance, transparency, and optical characteristics (refractive index, Abbe's number, and photoelastic coefficient). The optical lens includes a polyester resin containing a unit (A) of the following formula (1).