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 6992440 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 31, 2006

Filed:

Nov. 19, 2004
Applicant:

Mizuho Ishida, Yokohama, JP;

Inventor:

Mizuho Ishida, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 61/30 (2006.01); H01J 29/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a light-emitting device having an airtight container sealed at a lower temperature by means of a sealing material not containing a harmful component such as lead, which is free from heat deterioration of a phosphor, particularly a blue-emitting phosphor. A light-emitting device having an airtight container sealed by means of a sealing composition comprising a curable methylphenyl silicone resin and a refractory filler, wherein the amount of the refractory filler based on the sum of the methylphenyl silicone resin and the refractory filler in the sealing composition, is from 10 to 80 mass %, and the methylphenyl silicone resin has a molar ratio of phenyl groups to methyl groups (i.e. mols of phenyl groups/mols of methyl groups) of from 0.1 to 1.2.


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Ishida, Mizuho. (2006). Light-emitting device and process for its production (U.S. Patent No. 6992440). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6992440

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