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:
May. 12, 1992
Filed:
Feb. 20, 1990
Applicant:
Inventors:
Shuji Eguchi, Hitachi, JP;
Noriaki Taketani, Hitachi, JP;
Seikichi Tanno, Hitachi, JP;
Yoshiaki Okabe, Hitachi, JP;
Hiromu Terao, Hitachi, JP;
Hideki Asano, Mito, JP;
Motoyo Wajima, Hadano, JP;
Tomiya Abe, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; C08F / ;
U.S. Cl.
CPC ...
385143 ; 526240 ; 526241 ; 385144 ;
Abstract
A plastic optical fiber comprising a core and a clad, said core being formed by an amorphous and optically transparent polymer and said clad being formed by a polymer having a refractive index lower than that of the core by at least 0.3%, at least one of the core and the clad being formed by an amorphous and optically transparent polymer containing metal elements and halogen atoms, is low in light loss and excellent in heat resistance.