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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.:

US 10759995 B1

PDFFull Text
Date of Patent:
Sep. 01, 2020

Filed:

Feb. 17, 2016

Process for producing fluorescent material

Applicant:

Denka Company Limited, Tokyo, JP;

Inventors:

Masayoshi Ichikawa, Fukuoka, JP;

Ryosuke Kondo, Fukuoka, JP;

Hideyuki Emoto, Fukuoka, JP;

Motoi Tanaka, Fukuoka, JP;

Assignee:

DENKA COMPANY LIMITED, Tokyo, JP;

Attorneys:

Rudy J. Ng

Bozicevic, Field & Francis LLP

Primary Examiner:

Matthew E Hoban

Assistant Examiner:

Lynne Edmondson

Int. Cl.
CPC ...
C09K 11/61 (2006.01); C09K 11/66 (2006.01); C09K 11/64 (2006.01); C09K 11/02 (2006.01); C01B 33/10 (2006.01); C01G 45/00 (2006.01); C09K 11/08 (2006.01); C01D 3/02 (2006.01); C01D 3/22 (2006.01); C09K 11/57 (2006.01); C09K 11/59 (2006.01);
U.S. Cl.
CPC ...
C09K 11/616 (2013.01); C01B 33/10 (2013.01); C01D 3/02 (2013.01); C01D 3/22 (2013.01); C01G 45/006 (2013.01); C09K 11/08 (2013.01); C09K 11/57 (2013.01); C09K 11/59 (2013.01); C09K 11/617 (2013.01); C01P 2002/54 (2013.01);
Abstract

The present invention relates to a process for producing a composite-fluoride fluorescent material represented by the general formula AMF:Mn(wherein A is at least one alkali metal element including K; M is one or more metallic elements including at least Si or Ge and selected from among Si, Ge, Sn, Ti, Zr, and Hf; F is fluorine; and Mn is manganese). With the production process, it is possible to obtain a fluorescent material which is high in absorptance, internal quantum efficiency, and external quantum efficiency and has excellent optical properties.

Find Patent Forward Citations

Ichikawa, Masayoshi. (2020). Process for producing fluorescent material (U.S. Patent No. 10759995). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10759995

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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