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:
Dec. 27, 2005
Filed:
Jan. 28, 2004
Junichi Wada, Aichi, JP;
Junichi Wada, Aichi, JP;
Denso Corporation, , JP;
Abstract
An ignition coil comprises a housing, a rod-shaped center corearranged substantially at the center within the housing, a thermal stress relaxing membercovering the outer circumferential surface of the center core, a cylindrical spoolarranged on the outer circumferential side of the thermal relaxing memberwith a gapin between and a resin insulating materialwith which the gapis filled and which hardens. The thermal stress relaxing memberis wound around the center coreand the thickness of the thermal stress relaxing memberis set to a thickness so that the thermal stress, which is caused by the thermal deformation of the center coreand is applied to the resin insulating material, is reduced and reaches a saturation value thereof.