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. 27, 2015
Filed:
May. 25, 2012
Hiromichi Nakajima, Kanagawa-ken, JP;
Toshio Tsuji, Kanagawa-ken, JP;
Masahiko Kamata, Kanagawa-ken, JP;
Hiromichi Nakajima, Kanagawa-ken, JP;
Toshio Tsuji, Kanagawa-ken, JP;
Masahiko Kamata, Kanagawa-ken, JP;
Toshiba Lighting & Technology Corporation, Kanagawa, JP;
Abstract
According to one embodiment, a luminaire includes a light-emitting module, a first lighting circuit and a back-flow preventing circuit. The light-emitting module includes a light-emitting element and a capacitive element. The first lighting circuit is supplied with power from the first power supply and is configured to activate the light-emitting element. The back-flow preventing circuit interrupts current flowing in a direction from the capacitive element to the first lighting circuit.