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:
Nov. 11, 2003
Filed:
May. 22, 2002
Hironao Yamaguchi, Gamagori, JP;
Denso Corporation, Kariya, JP;
Abstract
A vehicle head lamp has a lighting control circuit that is cooled in temperature by positioning a portion of the lighting control circuit exterior to the lamp housing to use outside air as coolant to reduce thermal loads applied to circuit elements. The lamp housing defines an opening at a side of the lighting control circuit. An end surface of the lighting control circuit is exposed to the opening to an exterior side of the lamp housing. A flexible, annular diaphragm is fixed to the lamp housing around the peripheral portion of the opening. An inner circumferential portion of the diaphragm contacts a peripheral portion of the lighting control circuit to effectively seal around the lighting control circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile