Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Physics
Class Information
Number: 257/E47.003
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Bulk negative resistance effect devices, e.g., gunn-effect devices, processes, or apparatus peculiar to manufacture or treatment of such devices, or of parts thereof (epo) > Gunn-effect devices or transferred electron devices (epo) > Controlled by electromagnetic radiation (epo)
Description: This subclass is indented under subclass E47.002. This subclass is substantially the same in scope as ECLA classification H01L47/02B.










Patents under this class:

Patent Number Title Of Patent Date Issued
7456082 Method for producing silicon single crystal and silicon single crystal Nov. 25, 2008
7087921 Active electronic device and electronic apparatus Aug. 8, 2006











 
 
  Recently Added Patents
Use of tris(hydroxymethyl) aminomethane for the stabilization of peptides, polypeptides and proteins
Method for manufacturing semiconductor element and semiconductor device, and deposition apparatus
Press nut
Rotating-body electrification mechanism, image carrier unit, process cartridge, image forming apparatus, and method for electrifying image carrier unit
Configurable logic cells
Packaging for socks
Antitumoral compounds
  Randomly Featured Patents
In tone generators for electronic musical instruments
Device for data rate regulation linked to at least two digital video signal components
Anchoring system
Micromachined rate and acceleration sensor
Oxybenzoyl dioxyarylene mono- and diesters
Method of repairing deep subsurface defects in a silicon substrate that includes diffusing negatively charged ions into the substrate from a sacrificial oxide layer
Automatic tuning frequency or channel number installation
Control for electro-hydraulic valve arrangement
Recirculating column flotation apparatus
Noise reduced color image using panchromatic image