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:
May. 27, 1997
Filed:
Apr. 22, 1996
Eiichiro Konda, Hitachinaka, JP;
Noboru Sugiura, Mito, JP;
Kazutoshi Kobayashi, Hitachinaka, JP;
Kenichi Katagishi, Hitachinaka, JP;
Yoichi Anzo, Hitachinaka, JP;
Hidetoshi Oichi, Hitachinaka, JP;
Hiroshi Watanabe, Takahagi, JP;
Hitachi, Ltd., , JP;
Abstract
A cylindrical type ignition apparatus housed in a spark plug hole of a cylinder of an internal combustion engine is disclosed. A center core, a primary coil, a secondary core and a side core are provided, and a closed magnetic path is formed by connecting magnetically the center core and the side core by a core on a high voltage side and a core on a low voltage side, or a semi-closed magnetic path is formed by connecting magnetically the center core and the side core by a core on a low voltage side.