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.

Date of Patent:
Aug. 30, 2022

Filed:

Oct. 11, 2016
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventor:

Takashi Idogawa, Tokyo, JP;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 38/12 (2006.01); H01F 27/02 (2006.01);
U.S. Cl.
CPC ...
H01F 38/12 (2013.01); H01F 27/022 (2013.01); H01F 2038/127 (2013.01);
Abstract

An ignition coil includes: a center core; a primary coil wound around the center core; a secondary coil wound around the primary coil; a plurality of side cores, which are arranged around the secondary coil, and are coupled to the center core to form a closed magnetic path; a magnet inserted between the plurality of side cores; an igniter configured to control supply and interruption of a current to the primary coil; a case configured to accommodate the center core, the primary coil, the secondary coil, the plurality of side cores, the magnet, and the igniter; and insulating resin filled in the case. The side cores include a wide portion and a narrow portion. The magnet is inserted into the wide portion. The igniter is arranged between the narrow portion and the case.


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