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:
Jun. 11, 2019
Filed:
Aug. 08, 2014
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
National University Corporation Toyohashi University of Technology, Toyohashi-shi, JP;
Kenichi Hirotsu, Osaka, JP;
Nobuo Shiga, Osaka, JP;
Hideaki Nakahata, Osaka, JP;
Takashi Ohira, Toyohashi, JP;
Kyohei Yamada, Toyohashi, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-Shi, JP;
NATIONAL UNIVERSITY CORPORATION TOYOHASHI OF TECHNOLOGY, Toyohashi-Shi, JP;
Abstract
A transformer is provided between a power supply, and a load with a resistance value R, and includes a two-terminal pair circuit composed of n-number of reactance elements that are mutually connected, where n is a natural number equal to or greater than 4. With respect to any value of the resistance value R of the load, an input impedance Zof the two-terminal pair circuit has a real number component of k·R, where k is a constant, and an imaginary number component of 0. Such a transformer has a small size and a light weight, and does not need a coil, an iron core, and the like as used in a conventional transformer.