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:
Feb. 04, 2014
Filed:
Mar. 07, 2012
Kozo Uemura, Yokosuka, JP;
Soichi Shibusawa, Yokosuka, JP;
Yumiko Hayashida, Yokosuka, JP;
Kiyoshi Nishimura, Yokosuka, JP;
Seiko Kawashima, Yokosuka, JP;
Tsuyoshi Oyaizu, Yokosuka, JP;
Masahiro Ogata, Yokosuka, JP;
Shuhei Matsuda, Yokosuka, JP;
Hiroki Tamai, Yokosuka, JP;
Kozo Uemura, Yokosuka, JP;
Soichi Shibusawa, Yokosuka, JP;
Yumiko Hayashida, Yokosuka, JP;
Kiyoshi Nishimura, Yokosuka, JP;
Seiko Kawashima, Yokosuka, JP;
Tsuyoshi Oyaizu, Yokosuka, JP;
Masahiro Ogata, Yokosuka, JP;
Shuhei Matsuda, Yokosuka, JP;
Hiroki Tamai, Yokosuka, JP;
Toshiba Lighting & Technology Corporation, Kanagawa, JP;
Abstract
A light-emitting device includes a substrate, a reflecting layer formed on the substrate, a light-emitting element placed on the reflecting layer, and a sealing resin layer that covers the reflecting layer and the light-emitting element. The oxygen permeability of the sealing resin layer is equal to or lower than 1200 cm/(m·day·atm), and the ratio of the area of the reflecting layer covered by the sealing resin layer to the entire area on the resin substrate covered by the sealing resin layer is between 30% and 75% inclusive.