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. 04, 2012
Filed:
Sep. 20, 2010
Takeshi Hisayasu, Yokosuka, JP;
Kazuto Morikawa, Yokosuka, JP;
Yusuke Shibahara, Yokosuka, JP;
Makoto Sakai, Yokosuka, JP;
Tomohiro Sanpei, Yokosuka, JP;
Takeshi Hisayasu, Yokosuka, JP;
Kazuto Morikawa, Yokosuka, JP;
Yusuke Shibahara, Yokosuka, JP;
Makoto Sakai, Yokosuka, JP;
Tomohiro Sanpei, Yokosuka, JP;
Toshiba Lighting & Technology Corporation, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A base body having a base body portion and a plurality of heat radiating fins disposed on the circumference of the base body portion is provided. On one end side of the base body, a light-emitting module having semiconductor light-emitting elements, and a globe that covers the light-emitting module are provided. A cap is provided on the other end side of the base boy. A lighting circuit is housed between the base body and the cap. The lamp total length from the globe to the cap is 70 to 120 mm, and the area of a surface of the base body which is exposed to the outside per 1 W of power charged to the light-emitting module is 20.5 to 24.4 cm/W.