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Patent No. 5823386

Reward Candy Dispenser for Personal Computers

A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.

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Class 257/E31.046 - Including microcrystalline Group IV compound (e.g., c-SiGe, c-SiC) (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E31.044. This subclass
No. of patents: 6
Last issue date: 09/02/2008


NumberTitleIssue Date
7420207Photo-detecting device and related method of formation
A photo-detecting device includes a buried doping layer of a first conductivity type and disposed at an upper portion of a silicon substrate. A first silicon epitaxial layer of first conductivity type is disposed on the buried doping layer, and a second silicon epit... 		09/02/2008
7078329Method of manufacturing silicon carbide semiconductor device
An insulating film (2) is formed on a semiconductor substrate (1) formed of silicon carbide. A contact hole (3) is formed in the insulating film (2) to expose a part of the upper surface of the semiconductor substrate (1). Then, ni... 		07/18/2006
6635899Semiconductor element having microcrystalline grains and manufacturing method thereof
In a semiconductor element comprising microcrystalline semiconductor, a semiconductor junction is provided within a microcrystal grain. Further, in a semiconductor element comprising microcrystalline semiconductor, providing microcrystal grains of differe... 		10/21/2003
6303945Semiconductor element having microcrystalline semiconductor material
In a semiconductor element comprising microcrystalline semiconductor, a semiconductor junction is provided within a microcrystal grain. Further, in a semiconductor element comprising microcrystalline semiconductor, microcrystal grains of different grain d... 		10/16/2001
5085711Photovoltaic device
A photovoltaic device capable of obtaining a high open circuit voltage, in which crystallization of a semiconductor is accelerated from the first stage of formation thereof such that a thin layer of the semiconductor is crystallized, by doping an electrod... 		02/04/1992
4609771Tandem junction solar cell devices incorporating improved microcrystalline p-doped semiconductor alloy material
A p-doped microcrystalline silicon alloy material incorporated into a tandem photovoltaic device.... 		09/02/1986
 
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