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. 21, 2018
Filed:
Mar. 12, 2014
Diamond Electric Mfg. Co., Ltd., Osaka-shi, Osaka, JP;
Shinya Yamane, Osaka, JP;
Masayuki Nishimura, Osaka, JP;
Shuji Yamada, Osaka, JP;
Daisuke Suzuki, Osaka, JP;
Takuya Takaira, Osaka, JP;
Hideaki Shimakawa, Osaka, JP;
DIAMOND ELECTRIC MFG. CO., LTD., Osaka-Shi, Osaka, JP;
Abstract
An ignition coil capable of maintaining reliable insulation performance over a long period of time. A coil main body unit, for housing a primary coil, a secondary coil and a switching element, includes a case main body in which a housing space is provided, and a case lower portion which abuts the perimeter of the case main body. The primary coil and the secondary coil, which are placed in the case lower portion, are covered by the case main body. The secondary coil is configured by winding a second winding around a secondary bobbin, through which a central hole is extended in the horizontal direction, and the outer periphery of the same is covered by the case lower portion and a protective cap and is filled with a first material. When the primary coil is placed in the central hole, the remaining gap is filled with a secondary material.