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:
Nov. 10, 2015
Filed:
Jul. 06, 2012
Makoto Nunoya, Osaka, JP;
Akira Murota, Osaka, JP;
Makoto Nunoya, Osaka, JP;
Akira Murota, Osaka, JP;
Daifuku Co., Ltd., Osaka, JP;
Abstract
Three power supply devicesare connected in series via a transmission and receiving couplerto the feeder, a short-circuit switchthat short-circuits both ends of each transmission couplerB is provided, a circuit including three receiving couplersA and the feederis set to a series resonant circuit at a predetermined frequency f, impedance of a circuit including each transmission couplerB, and a line connecting the power supply deviceand the transmission couplerB is set to capacitive reactance at the predetermined frequency f, and an voltage to be output to the circuit including the line is controlled while a current flowing through the feederis being fed back to output a constant current of the predetermined frequency f to the feeder.