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:
Dec. 31, 2019
Filed:
May. 13, 2019
Fujifilm Corporation, Tokyo, JP;
Masashi Ono, Kanagawa, JP;
Tsutomu Sasaki, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
An object of the present invention is to provide a core shell particle having high luminous efficacy and a narrow emission half-width; a method of producing the same; and a film formed of the core shell particle. The core shell particle of the present invention includes: a core which contains a Group III element and a Group V element; a first shell which covers at least a part of a surface of the core; a second shell which covers at least a part of the first shell; and a coordination molecule in at least a part of an outermost surface, in which at least silicon is detected by X-ray photoelectron spectroscopy analysis, and a molar ratio of the silicon to the Group III element contained in the core, which is acquired by X-ray photoelectron spectroscopy analysis, is 3.1 or less.