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:
Jun. 11, 2024
Filed:
Aug. 10, 2021
Denka Company Limited, Tokyo, JP;
Hiroki Banno, Tokyo, JP;
Hiroaki Toyoshima, Tokyo, JP;
DENKA COMPANY LIMITED, Tokyo, JP;
Abstract
A phosphor powder of the present invention is a phosphor powder which contains an inorganic compound in which Eu as an activator is solid-soluted in a crystal represented by BaSiONor in an inorganic crystal having the same crystal structure as the crystal represented by BaSiON, and which is constituted such that in an emission spectrum obtained by irradiating the phosphor powder with excitation light having a wavelength of 450 nm, when a luminescence intensity at a peak wavelength in a range of equal to or more than 750 nm and equal to or less than 950 nm is P0, and when a luminescence intensity at a peak wavelength in a range of equal to or more than 520 nm and equal to or less than 600 nm is P1, 0.01≤P1/P0≤0.12 is satisfied by P0 and P1.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile