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:
Jul. 14, 2020
Filed:
May. 11, 2017
Fujifilm Corporation, Tokyo, JP;
Masashi Ono, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
Provided are core-shell particles that have high luminous efficiency and are useful as quantum dots, a method for producing the same, and a film produced using the core-shell particles. The core-shell particles of the invention are core-shell particles having a core containing a Group III element and a Group V element; and a shell covering at least a portion of the surface of the core and containing a Group II element and a Group VI element, in which the proportion of the peak intensity ratio of the Group II element with respect to the peak intensity ratio of the Group III element as measured by X-ray photoelectron spectroscopy analysis is 0.25 or higher.