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:
Dec. 11, 2001
Filed:
Nov. 28, 2000
Applicant:
Inventors:
Yoshiyuki Nakade, Tsuruga, JP;
Shigeyoshi Umezawa, Tsuruga, JP;
Masahiro Takamatsu, Toyota, JP;
Shigeo Shigeyama, Toyota, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/700 ;
U.S. Cl.
CPC ...
H05B 3/700 ;
Abstract
A light adjustment device for a vehicle comprises: a control circuit,connected to a lamp,; a first variable resistor,for adjusting the intensity of illumination of the lamp,by changing the output voltage of the control circuit,; and a second variable resistor, having different resistance value characteristics to the first variable resistor,, for adjusting the intensity of illumination of the LED