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. 22, 2018
Filed:
Feb. 27, 2014
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Shozo Oshio, Osaka, JP;
Natsuki Sato, Osaka, JP;
Abstract
An inorganic oxide has a composition represented by General formula: MLnX(AlO)(where M includes Ca, Ln includes Eu, and X includes at least either one of Zr and Hf). Then, a crystal structure of the inorganic oxide is a garnet-type structure. Euin the inorganic oxide emits a plurality of bright line-like fluorescent components, and a principal bright line of the fluorescent component is present within a wavelength range of 600 nm or more to less than 628 nm. Moreover, a maximum height of the bright line present within a wavelength range of 700 nm or more to less than 720 nm is less than 60% of a maximum height of the principal bright line. A phosphor composed of the inorganic oxide can emit narrowband red light with good color purity.