U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 257/431 - Light


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: Subject matter wherein the non-electrical signal to which
No. of patents: 937
Last issue date: 05/29/2012


                    24  
NumberTitleIssue Date
4058418Fabrication of thin film solar cells utilizing epitaxial deposition onto a liquid surface to obtain lateral growth
A method to manufacture thin film solar cell in which a solar cell to convert directly light to electricity is formed by depositing silicon material on a carrier substrate having a coating which is liquid on the deposition temperature. An article manufact...
11/15/1977
4047199Semiconductor device
The invention disclosed relates to a bulk semiconductor device having a semiconductor element exhibiting a negative conductivity under a high electric field and being capable of generating a high electric field domain therein. The semiconductor device inc...
09/06/1977
4038606Semiconductor device for storing and non-destructively reading image information and memory system comprising such a device
A semiconductor device, in particular a target for use in a memory tube having an optical and electric input and an electric output, having a semiconductor plate of the silicon vidicon type, in which information in the form of charge is stored in an insul...
07/26/1977
4029518Solar cell
A P-type diffusion layer is formed on an N-type silicon semiconductor wafer to establish a P-N junction in a solar cell, the diffusion layer being exposed to radiation. A pair of electrodes are formed on the surfaces of the diffusion layer and the semicon...
06/14/1977
4028565Semiconductor visible image storage device
An improved optical storage device capable of storing optical images in a charge pattern in a high-resistivity piezoelectric semiconductor layer on a semiconductor substrate. A semiconductor substrate, coated with a layer of electrically insulating materi...
06/07/1977
4025910Solid-state camera employing non-volatile charge storage elements
A non-volatile charge storage element wherein long-term charge storage occurs in the interface states of the element. Charge is stored at low applied voltages (ࣘ 10 volts) in short times (ࣘ 1 microseconds) and is stored as long as 105 secon...
05/24/1977
4016586Photovoltaic heterojunction device employing a wide bandgap material as an active layer
A semiconductive heterojunction device particularly useful as a photovoltaic device such as a solar cell comprises a heterojunction formed between a first layer of semiconductor material exhibiting one type of electronic conductivity (N or P) and a second...
04/05/1977
3990097Silicon solar energy cell having improved back contact and method forming same
A silicon solar energy cell having a diffusant junction extending inwardly from one surface, an aluminum-silicon junction of the opposite polarity extending inwardly from the other surface, and a film of aluminum-oxygen-diffusant formed over the aluminum-...
11/02/1976
3988497Photocathode made of a semiconductor single crystal
The photoelectric surface of a photocathode made of a semiconductor single crystal is made minutely rough and, accordingly, lusterless, so that the transmissivity of a polarized light beam incident on the photoelectric surface is almost unaffected by the ...
10/26/1976
3982269Semiconductor devices and method, including TGZM, of making same
A homogeneous integrated power structure embodies solid state control or signal devices and power devices integrated monolithically to achieve optimum physical characteristics of each device embodied therein at economical cost of manufacturing the same. T...
09/21/1976
3976872Gallium phosphide photodetector having an as-grown surface and producing an output from radiation having energies of 2.2 eV to 3.8 eV
Anomalously large photoresponse to radiation of energies between about 2.8 eV and about 3.8 eV has been observed in certain gallium phosphide photodetectors having an "as-grown" surface. This photoresponse is believed to be due to the low density of recom...
08/24/1976
3970778Monolithic acoustoelectric image pick-up device
Monolithic acoustoelectric imager using a multistrip coupled convolver. The multistrip coupler of the convolver senses the electric fields associated with counter-propagating surface acoustic waves on a piezoelectric film. The interaction product of the s...
07/20/1976
3961998Vacuum deposition method for fabricating an epitaxial PbSnTe rectifying metal semiconductor contact photodetector
A junction photodetector employing Pb1-x Snx Te in narrow film strips grown epitaxially on an appropriate substrate. An appropriate metal overlaps the film to form a metal-semiconductor contact....
06/08/1976
3947681Electron tunneling device
Tunneling electronic devices responsive to infrared and far infrared radiation are formed by overlapping deposits which define ultra-thin dielectric layers (less than about 10 Angstrom thickness) between metal layers, and contact areas of the order of 1 m...
03/30/1976
3944732Method and apparatus for improving acousto-electric scanning
An acoustically scanned, optical imaging system for converting patterns of light into electrical signals. The system includes a monolithic convolver that scans incident light patterns using two counter propagating acoustic waves. Located in front of the c...
03/16/1976
                    24  
 
Sign InRegister
Username  
Password   
forgot password?