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:
Apr. 24, 1990
Filed:
Jun. 20, 1989
Applicant:
Inventors:
Toshiyuki Mima, Nagoya, JP;
Hideki Shimizu, Nagoya, JP;
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; G02B / ;
U.S. Cl.
CPC ...
174139 ; 29631 ;
Abstract
An optical fiber-containing insulator including an insulator body having a through hole provided in a central portion thereof, an optical fiber inserted into the through hole, a stepped portion formed in the through hole at at least one end of the insulator body, a sealing section consisting of a pair of holders provided at upper and lower ends of the stepped portion, an inorganic glass layer sandwiched between the holders, and a protective layer formed on the outer holder. A process for producing such an optical fiber-containing insulator is also disclosed.