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:
Oct. 18, 2022
Filed:
Oct. 04, 2019
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Takahiro Hamada, Osaka, JP;
Naoyuki Tani, Osaka, JP;
Takashi Ohbayashi, Osaka, JP;
Yoshihisa Nagasaki, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/20 (2006.01); C09K 11/02 (2006.01); C09K 11/77 (2006.01);
U.S. Cl.
CPC ...
G03B 21/204 (2013.01); C09K 11/02 (2013.01); C09K 11/7774 (2013.01);
Abstract
A wavelength conversion device includes a matrix containing inorganic material, a phosphor embedded in the matrix, and filler particles embedded in the matrix and containing resin material. This wavelength conversion device prevents the phosphor from falling.