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:
Apr. 15, 2008
Filed:
Nov. 02, 2006
Mitsuo Matsushima, Kitasaku-gun, JP;
Mitsuo Matsushima, Kitasaku-gun, JP;
Minebea Co., Ltd., Kitasaku-Gun, JP;
Abstract
A discharge lamp lighting apparatus includes a transformer defining primary and secondary sides; a transformer driving circuit to drive the primary side of the transformer thereby lighting a discharge lamp connected at the secondary side of the transformer; a control circuit to control the transformer driving circuit; a high voltage capacitor formed of a pattern capacitor and disposed between one terminal of the secondary side of the transformer and the discharge lamp; and a discharge detecting pattern disposed close to the high voltage capacitor. In the discharge lamp lighting apparatus, a voltage induced in the discharge detecting pattern is duly detected, and power supply to the secondary side of the transformer is stopped.