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:
Oct. 16, 2001
Filed:
May. 12, 2000
Applicant:
Inventors:
Koju Okazaki, Fukuoka, JP;
Mamoru Tanaka, Fukuoka, JP;
Shiro Honma, Fukuoka, JP;
Hiroyuki Morijiri, Fukuoka, JP;
Yoshinobu Kanemura, Fukuoka, JP;
Masahiko Kusumoto, Kanagawa, JP;
Assignee:
Mitsui Chemicals, Inc., , JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/500 ;
U.S. Cl.
CPC ...
C08G 6/500 ;
Abstract
A transparent optical material containing at least one selenium atom, a plastic lens comprising the transparent optical material, and methods for preparing them. In addition, there are also disclosed novel selenium-containing compounds represented by the following formulae (1), (2) and (4) which are useful for the transparent optical material and the plastic lens: