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.

Date of Patent:
Nov. 11, 2014

Filed:

Mar. 13, 2013
Applicants:

Toshiba Lighting & Technology Corporation, Yokosuka, JP;

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Hirokazu Otake, Yokosuka, JP;

Takuro Hiramatsu, Yokosuka, JP;

Mitsuhiko Nishiie, Yokosuka, JP;

Assignees:

Toshiba Lighting & Technology Corporation, Yokosuka-shi, Kanagawa-ken, JP;

Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); H05B 33/08 (2006.01); H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0845 (2013.01); H05B 37/0209 (2013.01); H05B 33/0815 (2013.01); H05B 33/0848 (2013.01); H05B 33/0803 (2013.01); H02M 3/33507 (2013.01);
Abstract

A power supply device according to one embodiment is configured to control a lighting of semiconductor light-emitting elements, wherein a dimming signal is canceled during a predetermined time period (T) from a timing immediately after power-ON, so as to light on light-emitting diodes to have a predetermined light amount, for example, a minimum light amount. After an elapse of the predetermined time period (T), cancellation of the dimming signal is released to light on the light-emitting diodes to have a light amount instructed by the dimming signal.


Find Patent Forward Citations

Otake, Hirokazu. (2014). Power supply device and lighting equipment provided with power supply device (U.S. Patent No. 8884540). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8884540

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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