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:
Aug. 14, 2007
Filed:
Jan. 09, 2006
Takeshi Okumura, Chuo-ku, JP;
Hiroshi Suzuki, Chuo-ku, JP;
Toshihiro Kuroshima, Chuo-ku, JP;
Eizou Hara, Sakata, JP;
Katsumi Saito, Chuo-ku, JP;
Yuichiro Igarashi, Sakata, JP;
Takeshi Okumura, Chuo-ku, JP;
Hiroshi Suzuki, Chuo-ku, JP;
Toshihiro Kuroshima, Chuo-ku, JP;
Eizou Hara, Sakata, JP;
Katsumi Saito, Chuo-ku, JP;
Yuichiro Igarashi, Sakata, JP;
TDK Corporation, Tokyo, JP;
Abstract
A coil assembly for reducing variations in characteristic impedance includes a winding section having a first surface and a second surface on the opposite side of the winding section from the first surface, a plurality of first protrusions provided on the first surface, and a plurality of second protrusions provided on the second surface. These protrusions are identical in shape to each other and are arrayed linearly on their respective surfaces so that the first protrusions are offset from the second protrusions. Two conducting wires are wound between neighboring protrusions such that one wire contacts one of the neighboring protrusions, while the other wire contacts the other neighboring protrusion.