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. 19, 2021
Filed:
Apr. 03, 2018
Pioneer Corporation, Tokyo, JP;
Chihiro Harada, Tokyo, JP;
PIONEER CORPORATION, Tokyo, JP;
Abstract
A sealing member () is a sheet-like member to seal a light-emitting unit of a light-emitting device. The sealing member () is cut into a shape including a corner () having a central angle θ that is larger than 180 degrees when the light-emitting unit of the light-emitting device is sealed. When the sealing member () is cut, irregularities occur in the thickness direction in a region (: first region) having a predetermined width w from an edge of the corner (). When the irregularities occur, sealability of the sealing member () is deteriorated. Here, when a curvature radius of the corner (()) is equal to or greater than the above-mentioned width w, occurrence of the above-mentioned irregularities is inhibited.