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. 06, 2015
Filed:
Jan. 20, 2011
Kazushige Sugita, Hyogo, JP;
Tamotsu Ando, Osaka, JP;
Kazushige Sugita, Hyogo, JP;
Tamotsu Ando, Osaka, JP;
Abstract
There is provided a lamp capable of informing a user that the LED lamp is at the end of its productive life and urging the user to replace the lamp reliably with a simple configuration. The lamp includes: a light emitting diode () as a light source; and a driving circuit () that turns on the light emitting diode () by an alternating-current or direct-current power source. The lamp further includes a life detecting element () that turns off the light emitting diode () following the occurrence of insulation deterioration in a resin material when the light emitting diode () has been operated for a predetermined time.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile