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. 23, 2004
Filed:
Nov. 19, 2001
Applicant:
Inventors:
Makoto Shimizu, Yokohama, JP;
Yuji Kubo, Yokohama, JP;
Tomoyuki Hattori, Yokohama, JP;
Katsuyuki Tsuneishi, Yokohama, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/44 ;
U.S. Cl.
CPC ...
G02B 6/44 ;
Abstract
The heat-resistant coated optical fiber in accordance with the present invention comprises a coating portion , coated on the outer periphery of an optical fiber , comprising a first coating layer consisting of aromatic polyimide resin, a second coating layer consisting of silicone resin, and a third coating layer consisting of moisture-resistant resin with a heat resistance equivalent to that of the first coating layer , e.g., PFA.