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. 10, 2005
Filed:
Feb. 03, 2004
Akifumi Fujima, Wako, JP;
Katsuhiko Saito, Wako, JP;
Osamu Igarashi, Numazu, JP;
Kiyoshi Uemura, Numazu, JP;
Akifumi Fujima, Wako, JP;
Katsuhiko Saito, Wako, JP;
Osamu Igarashi, Numazu, JP;
Kiyoshi Uemura, Numazu, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Kokusan Denki Co., Ltd., Shizuoka-ken, JP;
Abstract
A capacitor discharge ignition device for an internal combustion engine including an ignition capacitor that is charged with a positive half cycle of an output voltage of an exciter coil, a thyristor that is triggered by a negative half cycle of an output voltage of the exciter coil when the internal combustion engine is ignited to discharge charges stored in the ignition capacitor through a primary coil of an ignition coil, and a reverse bias circuit that applies a reverse bias voltage between a gate and a cathode of the thyristor when a current flowing from the exciter coil through the thyristor is detected and when a charging current of the ignition capacitor is detected.