Light-emitting device
US-12155019-B2 · Nov 26, 2024 · US
Semiconductor light-emitting element and flash-light device
US8941335B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8941335-B2 |
| Application number | US-201213483416-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2012 |
| Priority date | Jun 1, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
There is provided a light-emitting element which includes a first semiconductor layer, a second semiconductor layer having an electrical conductivity that is different from that of the first semiconductor layer and an active layer disposed between the first and second layers, and a first and second electrodes respectively disposed on surfaces of the first and second semiconductor layers. The first electrode comprises a plurality of electrode pieces separated from each other; and each of the electrode pieces comprises a power feed pad, and an extended portion connected to the pad and that extends in a direction away from the pad, and a terminal end portion of the extended portion of an electrode piece is opposed to a terminal end portion of the extended portion of the other electrode piece across a gap.
First claim
Opening claim text (preview).
What is claimed is: 1. A flash light device provided with a semiconductor light-emitting element, the semiconductor light-emitting element comprising a first semiconductor layer having a first electrical conductivity, a second semiconductor layer having a second electrical conductivity that is different from said first electrical conductivity, an active layer disposed between said first semiconductor layer and said second semiconductor layer, and a first electrode and a second elec…
Assignees
Inventors
Classifications
Physics · mapped topic
- H10H20/831Primary
Electricity · mapped topic
- H01L33/38Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8941335B2 cover?
- There is provided a light-emitting element which includes a first semiconductor layer, a second semiconductor layer having an electrical conductivity that is different from that of the first semiconductor layer and an active layer disposed between the first and second layers, and a first and second electrodes respectively disposed on surfaces of the first and second semiconductor layers. The fi…
- Who is the assignee on this patent?
- Kono Keima, Takashiro Eiji, Saito Tatsuma, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H10H20/831. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 2015 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).