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. 07, 2016
Filed:
Apr. 13, 2012
Shoji Shibata, Tokyo, JP;
Yoichi Fujikake, Tokyo, JP;
Kunihiko Hatabara, Tokyo, JP;
Michiaki Ishihara, Hyogo, JP;
Sohken Mitsui, Hyogo, JP;
Shoji Shibata, Tokyo, JP;
Yoichi Fujikake, Tokyo, JP;
Kunihiko Hatabara, Tokyo, JP;
Michiaki Ishihara, Hyogo, JP;
Sohken Mitsui, Hyogo, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
The rotary transformerincludes a plate-shaped statorhaving a coil arranged on one surface thereof, and a plate-shaped rotatorhaving a coil arranged on one surface thereof, in which the respective coil-arranged surfaces are disposed to face with each other so that signal transmission in a frequency range of 1 to 10 MHz is performed between the coils. The stator includes a substrateon which a plurality of one-turn coils are formed into a concentric shape, and a supporting member. The rotator includes a substrateon which one-turn coilsof same number are formed into a concentric shape, and a supporting member. Air or a material M which is an insulator and has a relative magnetic permeability substantially equal to 1 is lying between the substrateand the supporting member, and between the substrateand the supporting member