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, 2006
Filed:
Jul. 16, 2003
Takeo Yasuda, Yokohama, JP;
Kunihiko Ikada, Zushi, JP;
Toshiyuki Ikeda, Yokosuka, JP;
Yuichiro Takahara, Yokosuka, JP;
Tetsuya Oono, Kanazawa-Ku, JP;
Nobuhiro Tamura, Yokosuka, JP;
Masahiro Izumi, Fujisawa, JP;
Takeo Yasuda, Yokohama, JP;
Kunihiko Ikada, Zushi, JP;
Toshiyuki Ikeda, Yokosuka, JP;
Yuichiro Takahara, Yokosuka, JP;
Tetsuya Oono, Kanazawa-Ku, JP;
Nobuhiro Tamura, Yokosuka, JP;
Masahiro Izumi, Fujisawa, JP;
Toshiba Lighting & Technology Corporation, Tokyo, JP;
Abstract
A bulb-shaped fluorescent lamp with an emission bulb having a bent tube and a lighting device having a circuit board and electronic parts mounted on the circuit board. The lighting device has a cover member with a cap and a holder for holding the emission bulb and the circuit board has a great part of its electronic parts disposed on the cap side. The lighting device has a fine tube that extends from the end of a portion of the bent tube toward the cap side within the cover member, and protrudes so that the surface temperature of a portion of said fine tube is kept in the range between 40–70°C. at the time of normal lighting and/or the fine tube extending from the end of the bent tube toward the cap side within the cover member protrudes from the end of said bent tube by 25–70 mm.