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. 26, 2004
Filed:
Apr. 29, 2002
Atsushi Suzuki, Yokohama, JP;
Tomoyuki Hattori, Yokohama, JP;
Kazunori Tanaka, Yokohama, JP;
Toshifumi Hosoya, Yokohama, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A coated optical fiber is shown in which, by coating a glass optical fiber with a primary coating having a storage modulus E′ of 0.01 kg/mm to 2.0 kg/mm at 25° and 110 Hz and an adhesion of 10 g/cm to 200 g/cm to the glass optical fiber, delamination at the interface between the glass optical fiber and the primary coating, and voids are prevented during and after the production, for example, on the line during drawing and winding. An optical fiber ribbon of the present invention, which is formed by collectively coating the coated optical fibers each including a primary coating with a storage modulus E′ of 0.01 kg/mm to 0.5 kg/mm and an adhesion of 10 g/cm to 100 g/m, has a high delamination resistance and a good collective strippability of coatings. In an optical fiber unit of the present invention which is formed by collectively coating the coated optical fibers having a storage modulus E′ of 0.01 kg/mm to 0.5 kg/mm and an adhesion of 100 g/cm to 200 g/cm, delamination and voids will not occur.