Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7271424 | Light-emitting diode with openings formed in a stacked structure A light-emitting diode has a sub-mount, a first conductivity type substrate deposed on the sub-mount, a reflector layer deposed between the sub-mount and the first conductivity type substrate, a first conductivity type buffer layer deposed on the first conductivity ... | 09/18/2007 |
| 7335519 | Method for manufacturing a light-emitting diode A method for manufacturing a light-emitting diode (LED) is disclosed. In the method, a substrate is firstly provided, in which a first conductivity type cladding layer, an active layer, a second conductivity type cladding layer, a superlattice contact layer and a tr... | 02/26/2008 |
| 7301272 | Lighting device and method for manufacturing the same A lighting device and a method for manufacturing the same are described. First, a semiconductor layer of a first electrical property, an active layer and a semiconductor layer of a second electrical property are sequentially formed, and part of them are removed to f... | 11/27/2007 |
| 7238972 | Photodetector A photodetector is described. The photodetector is comprised of a substrate, a first n-type III-V compound semiconductor layer located on the substrate, an n++-type III-V compound semiconductor layer located on a first portion of the first n-type III-V co... | 07/03/2007 |
| 7192794 | Fabrication method of transparent electrode on visible light-emitting diode A method for forming a transparent electrode on a visible light-emitting diode is described. A visible light-emitting diode element is provided, and the visible light-emitting diode element has a substrate, an epitaxial structure and a metal electrode. The metal ele... | 03/20/2007 |
| 7115915 | Light-emitting diode A light-emitting diode (LED) is described. The light-emitting diode comprises a metal substrate, a reflective layer, a first transparent conductive layer, an illuminant epitaxial structure and a second transparent conductive layer stacked in sequence, and an electro... | 10/03/2006 |
