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:
Aug. 17, 2010
Filed:
Apr. 25, 2008
Shuichi Matsubayashi, Tsurugashima, JP;
Ikuo Hirayama, Tsurugashima, JP;
Atsushi Iwami, Kariya, JP;
Takeshi Morimoto, Tajimi, JP;
Shuichi Matsubayashi, Tsurugashima, JP;
Ikuo Hirayama, Tsurugashima, JP;
Atsushi Iwami, Kariya, JP;
Takeshi Morimoto, Tajimi, JP;
Toyo Denso Kabushiki Kaisha, Tokyo, JP;
Denso Corporation, Kariya, JP;
Abstract
A high-strength ignition coil that can prevent distortion arising from pin marks formed on a surface of a core and makes it less likely for insulating resin to be cracked. The coil assembly is housed in a coil case. A casting material is filled into a gap between the coil case and the coil assembly and gaps which the coil assembly has. The coil assembly is comprised of a coil pair including a cylindrical primary coil and a secondary coil disposed concentrically with the primary coil, and a core. The core is fitted into a central space of the coil pair and forms a magnetic path. The core is coated with mold resin. Concave portions of pin marks formed on a mold resin coating by removal of core fixing pins when the mold resin coating is formed are filled with mold resin.