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:
Sep. 06, 2011
Filed:
Apr. 21, 2009
Norihito Fujiyama, Obu, JP;
Norihito Fujiyama, Obu, JP;
Denso Corporation, Kariya, JP;
Abstract
A housing of an ignition coil has an approximately rectangular shape. A central core is in parallel with both side surfaces of the housing. The peripheral core has a larger size than the central core in a direction of a height of the housing. A first and second side portions of the peripheral core are opposed to both axial end surfaces of the central core, respectively. A third and fourth side portions of the peripheral core interpose the central core, a primary coil and a secondary coil therebetween to magnetically connect the first side portion to the second side portion. A terminal treatment portion for electrically connecting the primary coil to an external electric power source is arranged above or below the first side portion of the peripheral core. The peripheral core is positioned off-center with respect to the central core in the direction of the height of the housing.