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.

Date of Patent:
Jan. 31, 2023

Filed:

May. 01, 2018
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Shozo Oshio, Osaka, JP;

Takeshi Abe, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); C09K 11/64 (2006.01); H01L 33/50 (2010.01); H01L 33/22 (2010.01); H01S 3/16 (2006.01); C09K 11/70 (2006.01); H01S 5/06 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7774 (2013.01); C09K 11/70 (2013.01); C09K 11/77742 (2021.01); H01L 33/22 (2013.01); H01L 33/504 (2013.01); H01S 5/0609 (2013.01);
Abstract

A wavelength converterincludes: a first phosphorcomposed of an inorganic phosphor activated by Ce; and a second phosphorcomposed of an inorganic phosphor activated by Ceand different from the first phosphor. At least one of the first phosphor and the second phosphor is particulate. The first phosphor and the second phosphor are bonded to each other by at least one of a chemical reaction in a contact portion between the compound that constitutes the first phosphor and a compound that constitutes the second phosphor and of adhesion between the compound that constitutes the first phosphor and the compound that constitutes the second phosphor.


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