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:
Apr. 08, 2014
Filed:
Aug. 26, 2011
Tsuyoshi Yoshimoto, Chigasaki, JP;
Katsumi Yamane, Chigasaki, JP;
Tetsuhiro Ohno, Chigasaki, JP;
Takahiro Mizoguchi, Chigasaki, JP;
Tsuyoshi Yoshimoto, Chigasaki, JP;
Katsumi Yamane, Chigasaki, JP;
Tetsuhiro Ohno, Chigasaki, JP;
Takahiro Mizoguchi, Chigasaki, JP;
Ulvac, Inc., Chigasaki-Shi, JP;
Abstract
A uniform voltage is applied to loads even to other than a multiple of three loads made of heating lamps connected in parallel to each other, without causing any burden on a primary side. The number of loads is divided into a multiple of three and a multiple of two. A three-phase AC voltage is applied to three primary windings, which are connected as a Y-connection or a Δ-connection. Secondary windings, which are each magnetically coupled to a primary winding of a plurality of three-phase transformers and have the same number of turns, are connected with the multiple of three loads.