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. 10, 2006
Filed:
Feb. 17, 2004
Yuji Tsuneto, Takatsuki, JP;
Hiroki Nakagawa, Ibaraki, JP;
Akiko Nakanishi, Takatsuki, JP;
Kenji Itaya, Takatsuki, JP;
Kenji Nakano, Kyoto, JP;
Kohhei Iwase, Takatsuki, JP;
Hiroki Kitagawa, Kusatsu, JP;
Yasushige Tomiyoshi, Takatsuki, JP;
Shiro Iida, Kyoto, JP;
Yuji Tsuneto, Takatsuki, JP;
Hiroki Nakagawa, Ibaraki, JP;
Akiko Nakanishi, Takatsuki, JP;
Kenji Itaya, Takatsuki, JP;
Kenji Nakano, Kyoto, JP;
Kohhei Iwase, Takatsuki, JP;
Hiroki Kitagawa, Kusatsu, JP;
Yasushige Tomiyoshi, Takatsuki, JP;
Shiro Iida, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A compact self-ballasted fluorescent lamp has an arc tube in a double-spiral configuration, the arc tube being formed by bending a glass tube around an axis of spiral up to both ends of the glass tube, and a holder that is made of resin and holds this arc tube. Electrodes, each being equipped with a filament coil, are sealed at respective ends of the glass tube. The holder is made up of a holding resin member with a cylindrical shape having a closed bottom and a resin cover in a cone shape, the holder including a circumferential wall and an end wall that is at the edge of the circumferential wall. A heat-dissipating plate is provided inside the holding resin member, at a position corresponding to where the filament coils within the glass tube are.