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:
Apr. 21, 2020
Filed:
Mar. 01, 2017
Tdk Corporation, Tokyo, JP;
Syun Ashizawa, Tokyo, JP;
Toshio Tomonari, Tokyo, JP;
Hirohumi Asou, Tokyo, JP;
Emi Ito, Tsuruoka, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A coil device includes a winding core with a coil portion wound by a wire, first and second flanges with open magnetic circuit respectively formed on both sides of the winding core in an axial direction, and a first facing surface of the first flange and a second facing surface of the second flange facing each other in the axial direction on an outer circumference side of the coil portion. SSis 0.2 to 1.0, where Sis a maximum lateral cross sectional area of the winding core as seen from the axial direction, and Sis a projected overlapping area overlapped by the first facing surface and the second facing surface as seen from the axial direction.