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:
Sep. 03, 2002
Filed:
Mar. 29, 2000
Applicant:
Inventors:
Masanori Shimizu, Kyoto, JP;
Kazuaki Ohkubo, Osaka, JP;
Takeshi Arakawa, Kyoto, JP;
Yoshinori Tanabe, Osaka, JP;
Kenjiro Hashimoto, Osaka, JP;
Yoko Shimomura, Nara, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/62 ; H01J 6/304 ;
U.S. Cl.
CPC ...
H01J 1/62 ; H01J 6/304 ;
Abstract
A fluorescent lamp of the present invention includes: a first electrode section having a first filament; a second electrode section having a second filament; a fluorescent tube in which a fluorescent substance Is applied on an inner wall of the fluorescent tube; a first structure of a nonconductor provided in the fluorescent tube: and a second structure of a conductor provided in the fluorescent tube. The first structure and the second structure are provided between the first filament and the second filament.