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:
Aug. 12, 2014
Filed:
Mar. 15, 2013
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Hiromu Watanabe, Kanagawa, JP;
Masumi Itou, Kanagawa, JP;
Keiichi Seki, Kanagawa, JP;
Hiroshi Wada, Kanagawa, JP;
Motoyuki Shigeiwa, Kanagawa, JP;
Kaoru Terada, Kanagawa, JP;
Naoto Kijima, Kanagawa, JP;
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Abstract
A nitride phosphor contains europium as an activating element and strontium, or strontium and calcium, as divalent metal elements. The phosphor further includes aluminum and silicon. Of the europium in the phosphor, at least 85% is in the form of Eu. The phosphor has a peak emission wavelength of from 590 nm to 650 nm. A phosphorescent body that includes the phosphor can be suitable for converting a wavelength of at least a portion of light emitted from an excitation light source in a light-emitting device.