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. 30, 2000
Filed:
Jul. 07, 1999
Applicant:
Inventors:
Atsushi Fukui, Osaka, JP;
Kanji Nishii, Osaka, JP;
Kenji Takamoto, Osaka, JP;
Masami Ito, Osaka, JP;
Kazumasa Takata, Osaka, JP;
Ken Tatsuta, Osaka, JP;
Koki Nakabayashi, Osaka, JP;
Hiroshi Watanabe, Kyoto, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V / ;
U.S. Cl.
CPC ...
362 31 ; 362 19 ; 362309 ;
Abstract
A highly efficient, luminous and energy-saving panel-form illuminating system suitable for mass-production, comprising at least a photoconductor, a linear light source at one side of the photoconductor, and a reflector; wherein grooves or protrusions are formed on the bottom surface of the photoconductor.