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:
Sep. 01, 2015
Filed:
Mar. 07, 2013
Applicant:
Hitachi Cable, Ltd., Tokyo, JP;
Inventors:
Assignee:
HITACHI METALS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 7/00 (2006.01); H01B 13/06 (2006.01); H01B 13/14 (2006.01); H01B 11/18 (2006.01); H01B 11/20 (2006.01);
U.S. Cl.
CPC ...
H01B 13/06 (2013.01); H01B 7/00 (2013.01); H01B 11/1839 (2013.01); H01B 13/142 (2013.01); H01B 11/20 (2013.01); Y10T 29/49194 (2015.01);
Abstract
A differential transmission cable includes at least one pair of inner conductors arranged in parallel and extending parallel to each other, and a foamed insulating material formed on the inner conductors by a collective extrusion coating and molding of a resin material by using a chemical foaming method and have a variation of foaming degree of not more than 1%. The variation of foaming degree is defined as a difference between a maximum value and a minimum value among foaming degrees (%) of the foamed insulating material at 20 positions at intervals of 50 cm in a longitudinal direction in an arbitrary part of 10 m cut out from the differential transmission cable.