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:
Jan. 29, 2008
Filed:
Dec. 22, 2003
Tatsumi Setomoto, Takatsuki, JP;
Nobuyuki Matsui, Takatsuki, JP;
Tetsushi Tamura, Takatsuki, JP;
Noriyasu Tanimoto, Takatsuki, JP;
Masanori Shimizu, Kyotanabe, JP;
Tatsumi Setomoto, Takatsuki, JP;
Nobuyuki Matsui, Takatsuki, JP;
Tetsushi Tamura, Takatsuki, JP;
Noriyasu Tanimoto, Takatsuki, JP;
Masanori Shimizu, Kyotanabe, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In a module socket, a connecter and a connector are connected by wiring, and three LED modules are connected in parallel with respect to a constant voltage circuit unit via the wiring. Each module has a constant current circuit unit and an LED mounting unit. The constant current circuit unit includes one resistor and two transistors mounted on a surface of a sub-substrate on which a conductive land is formed. The sub-substrate is bonded to a main substrate.