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:
Oct. 06, 2020

Filed:

Apr. 12, 2017
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventor:

Akihiro Kato, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 38/12 (2006.01); H01F 27/32 (2006.01); H01F 5/02 (2006.01); F02P 3/02 (2006.01);
U.S. Cl.
CPC ...
H01F 38/12 (2013.01); H01F 27/325 (2013.01); F02P 3/02 (2013.01); H01F 2005/025 (2013.01);
Abstract

An ignition coil for an internal combustion engine, provided with a primary coil, a secondary coil, a bobbin, a center core and a mold resin member. The primary coil and secondary coil are magnetically connected to each other. The primary coil is directly wound on the bobbin. The center core is disposed in close contact with the bobbin at an inner space thereof. The mold resin member has the primary coil, the secondary coil, the bobbin, and the center core embedded at the inner side thereof. The bobbin includes thermoplastic resin and dispersed phase particles which are dispersed in the thermoplastic resin. The dispersed phase particles being lower in elasticity than the thermoplastic resin.


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