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. 31, 2016
Filed:
Nov. 01, 2011
Takakazu Yano, Toshima-ku, JP;
Kota Ishii, Fujiyoshida, JP;
Akio Yoshimura, Fujiyoshida, JP;
Sadato Imai, Minamitsuru-gun, JP;
Takakazu Yano, Toshima-ku, JP;
Kota Ishii, Fujiyoshida, JP;
Akio Yoshimura, Fujiyoshida, JP;
Sadato Imai, Minamitsuru-gun, JP;
CITIZEN ELECTRONICS CO., LTD., Yamanashi-ken, JP;
CITIZEN HOLDINGS CO., LTD., Tokyo, JP;
Abstract
A light-emitting device includes a substrate including electrodes, a first group including a plurality of blue light-emitting diode elements that are disposed on the substrate and electrically connected to the electrodes, a second group including a plurality of blue light-emitting diode elements that are disposed on the substrate and electrically connected to the electrodes, a fluorescent layer disposed to receive light from the first group of blue light-emitting diode elements, and a phosphorescent layer disposed to receive light from the second group of blue light-emitting diode elements.