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:
May. 25, 1999
Filed:
Jun. 25, 1997
Kunihiko Watanabe, Yokkaichi, JP;
Heiji Kuki, Yokkaichi, JP;
Shuji Arisaka, Osaka, JP;
Toshiro Shimada, Osaka, JP;
Sumitomo Electriic Industries, Ltd., Osaka, JP;
Sumitomo Wiring Systems, Ltd., Mie, JP;
Abstract
A magnetic coupling device for charging an electric vehicle includes: a primary unit having a primary core and a primary coil wound on the primary core; and a secondary unit having a secondary core and a secondary coil wound on the secondary core, the secondary unit disposed on the electric vehicle and coupled with the primary unit, so that the primary and secondary cores constitute a closed loop-like magnetic circuit; each of the primary and secondary cores having a junction face which contacts with each other under the coupling, wherein the junction faces of the primary and secondary cores have a mutually opposing relationship in which the junction faces intersect with an attaching direction of the primary unit.