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:
Aug. 11, 2009
Filed:
Nov. 12, 2004
Applicant:
Akihiro Yamashita, Miyaki-gun, JP;
Inventor:
Akihiro Yamashita, Miyaki-gun, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 27/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A communication transformer for power line communication includes a magnetic core, a plurality of transfer-purpose windings wound on the magnetic core, and an additional winding. The additional winding is wound on the magnetic core in such a manner that the additional winding is positioned between the plurality of transfer-purpose windings, and does not contribute in signal transfer operations. The communication transformer is arranged such that a half way portion of the additional winding along a length direction thereof is electrically connected to a constant potential.