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. 11, 2021
Filed:
May. 23, 2018
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Mitsuru Nitta, Kyoto, JP;
Nobuaki Nagao, Gifu, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); C09K 11/08 (2006.01); H01L 33/50 (2010.01); C09K 11/59 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7723 (2013.01); C09K 11/0883 (2013.01); C09K 11/59 (2013.01); C09K 11/7769 (2013.01); H01L 33/504 (2013.01); C04B 2235/3229 (2013.01);
Abstract
A phosphor comprises a crystal phase that has a chemical composition of (Y,Ce,La)SiAlNO, where the α satisfies 5.5≤α≤6.5, the β satisfies 9.5≤β≤12.5, the γ satisfies 17.5≤γ≤22.5, the x satisfies 0<x≤0.1, the y satisfies 0≤y≤0.4, and the z satisfies 0≤z≤0.5. A light emission spectrum of the phosphor includes a peak within a wavelength range of not less than 600 nm and not more than 660 nm.