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:
Jul. 03, 2012
Filed:
Feb. 19, 2010
Hideki Kojima, Tsurugashima, JP;
Hideki Kojima, Tsurugashima, JP;
Toko Inc., Saitama, JP;
Abstract
Disclosed is a noncontact electric power transmission system having a power transmitter circuit sectionand a power receiver circuit sectionwhich are adapted to be coupled to transmit electric power from a transmitter coil Lp provided in the power transmitter circuit sectionto a receiver coil Ls provided in the power receiver circuit section, in a noncontact manner by means of electromagnetic induction. The noncontact electric power transmission system comprises: a separately-excited or self-excited switching circuitprovided in the power transmitter circuit section; a control ICoperable to drive the switching circuit; an LC series resonant circuit including a capacitor Cp connected in series to the transmitter coil Lp or an LC parallel resonant circuit including a capacitor Cp connected in parallel to the transmitter coil Lp; and an LC parallel resonant circuit including a capacitor Cs connected in parallel to the receiver coil Ls, wherein an oscillating frequency (Fosc) of the control IC, a resonant frequency (Fpr) of the LC series resonant circuit or the LC parallel resonant circuit in the power transmitter circuit section, and a resonant frequency (Fsr) of the LC parallel resonant circuit in the power receiver circuit section, have the following relationship: Fpr<Fosc<Fsr.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile