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:
Jul. 21, 2000
Applicant:
Inventors:
Assignee:
Maspro Denkoh Co., LTD, Aichi-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/28 ; H03H 7/00 ; H03H 7/38 ;
U.S. Cl.
CPC ...
H04B 3/28 ; H03H 7/00 ; H03H 7/38 ;
Abstract
A two-staged coupling transformer comprised of an up-stream coupling transformer and a down-stream coupling transformer are successively provided between an input terminal and an output terminal, wherein respective primary windings are connected to the input side while secondary windings are connected to the output side. The up-stream coupling transformer and the down-stream coupling transformer are set to be of identical turns ratios and are connected by respectively converting each other.