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. 29, 2015
Filed:
Mar. 02, 2012
Makio Takahashi, Hitachinaka, JP;
Takanobu Kobayashi, Tokai, JP;
Yoichi Anzo, Hitachinaka, JP;
Gakuji Moriya, Utsunomiya, JP;
Makoto Kurahashi, Utsunomiya, JP;
Makio Takahashi, Hitachinaka, JP;
Takanobu Kobayashi, Tokai, JP;
Yoichi Anzo, Hitachinaka, JP;
Gakuji Moriya, Utsunomiya, JP;
Makoto Kurahashi, Utsunomiya, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An object of the present invention is to provide an ignition coil for use in an internal combustion engine, offering improved water drainage performance, while achieving high waterproof performance with controlled entry of water in a plug hole. A high-voltage generating sectionthat generates a high voltage is housed inside a coil case. A plug hole sealcloses an opening in a plug holein which an ignition plugis mounted. The ignition coil further includes a space portionplaced on an outer side portion of the high-voltage generating sectionand an air pathfor venting air between the space portionand the plug hole. The space portionhas an open lower surface (an entirely open surface facilitates demolding).