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. 11, 2021
Filed:
Dec. 06, 2017
Applicants:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Yokohama, JP;
Inventors:
Yoshitaka Funayama, Yokohama, JP;
Yumi Kanno, Yokohama, JP;
Hirofumi Takemura, Kamakura, JP;
Tsutomu Ishii, Ashiya, JP;
Yasuhiro Shirakawa, Yokohama, JP;
Assignees:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Materials Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); C09K 11/77 (2006.01); C09K 11/08 (2006.01);
U.S. Cl.
CPC ...
H01L 33/502 (2013.01); C09K 11/08 (2013.01); C09K 11/7774 (2013.01); H01L 2224/4848 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48465 (2013.01); H01L 2224/8592 (2013.01); H01L 2924/181 (2013.01);
Abstract
A phosphor has a composition represented by Chemical formula 1: 1.5YO·2.5aAlO:Ce where a is a number satisfying 1.02<a<1.1.