Light emitting device and atomic oscillator

US9300308B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9300308-B2
Application numberUS-201414514823-A
CountryUS
Kind codeB2
Filing dateOct 15, 2014
Priority dateOct 16, 2013
Publication dateMar 29, 2016
Grant dateMar 29, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A light emitting device includes a first semiconductor multilayer film mirror of a first conductivity type, a second semiconductor multilayer film mirror of a second conductivity type that is different from the first conductivity type, an active layer formed between the first semiconductor multilayer film mirror and the second semiconductor multilayer film mirror, a third semiconductor multilayer film mirror of a semi-insulating type formed between the first semiconductor multilayer film mirror and the active layer, and a contact layer of the first conductivity type formed between the third semiconductor multilayer film mirror and the active layer, and the third semiconductor multilayer film mirror is formed of a material having a bandgap energy higher than an energy of light generated in the active layer.

First claim

Opening claim text (preview).

What is claimed is: 1. A light emitting device comprising: a first semiconductor multilayer film mirror of a first conductivity type; a second semiconductor multilayer film mirror of a second conductivity type, the second conductivity type being different than the first conductivity type; an active layer between the first semiconductor multilayer film mirror and the second semiconductor multilayer film mirror; a third semiconductor multilayer film mirror of a semi-insulating…

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What does patent US9300308B2 cover?
A light emitting device includes a first semiconductor multilayer film mirror of a first conductivity type, a second semiconductor multilayer film mirror of a second conductivity type that is different from the first conductivity type, an active layer formed between the first semiconductor multilayer film mirror and the second semiconductor multilayer film mirror, a third semiconductor multilay…
Who is the assignee on this patent?
Seiko Epson Corp
What technology area does this patent fall under?
Primary CPC classification H03L7/26. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).