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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 11180409 B1

PDFFull Text
Date of Patent:
Nov. 23, 2021

Filed:

Jul. 21, 2017

Wavelength conversion member and production method therefor

Applicant:

Nippon Electric Glass Co., Ltd., Otsu, JP;

Inventors:

Hiroyuki Shimizu, Otsu, JP;

Hideki Asano, Otsu, JP;

Takashi Murata, Otsu, JP;

Assignee:

NIPPON ELECTRIC GLASS CO., LTD., Shiga, JP;

Attorney:

Keating and Bennett, LLP

Primary Examiner:

Christopher M Raabe

Int. Cl.
CPC ...
H01L 33/50 (2010.01); C03C 4/12 (2006.01); B32B 17/00 (2006.01); C03B 23/203 (2006.01); C03C 14/00 (2006.01); C03C 19/00 (2006.01);
U.S. Cl.
CPC ...
C03C 4/12 (2013.01); B32B 17/00 (2013.01); C03B 23/203 (2013.01); C03C 14/006 (2013.01); H01L 33/502 (2013.01); H01L 33/508 (2013.01); B32B 2250/02 (2013.01); C03C 19/00 (2013.01); C03C 2204/00 (2013.01); C03C 2214/16 (2013.01); C03C 2214/30 (2013.01); H01L 2933/0041 (2013.01);
Abstract

Provided is a wavelength conversion member that can be readily adjusted in chromaticity and can be increased in productivity and a production method for the wavelength conversion member. A wavelength conversion memberhaving a first principal surfaceand a second principal surfaceopposed to each other includes a glass matrixand phosphor particlesdisposed in the glass matrix, wherein concentrations of the phosphor particlesin the first principal surfaceand in the second principal surfaceare higher than concentrations of the phosphor particlesin surface layer bottom planesandlocated 20 μm inward from the first principal surfaceand 20 μm inward from the second principal surface, respectively.

Find Patent Forward Citations

Shimizu, Hiroyuki. (2021). Wavelength conversion member and production method therefor (U.S. Patent No. 11180409). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11180409

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

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