Resources Contact Us Home
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
Non-volatile semiconductor memory and data processing method in non-volatile semiconductor memory
Conductor-mixed active electrode material, electrode structure, rechargeable battery, and manufacturing method of conductor-mixed active electrode material
Tetrazolyl oxime derivative, salt thereof, and plant disease control agent
Heat stable variants of plant adenosine diphosphate glucose pyrophosphorylase small subunit
Method for execution upon processing of at least one histological sample
Fuel cell system, and electric vehicle equipped with the fuel cell system
Image processing apparatus, image processing method, and program
  Randomly Featured Patents
Abnormal pattern detection processing method and system
Water saving, toilet flushing apparatus
Base assembly for motor and hard disk drive including the same
Peak position drum maintenance unit for a printing device
Method and apparatus for analysis of information about yarn eveness
Hamilton H.N2 laminar flow diskette wing
Electro-osmotic pumps and micro-channels
Method and apparatus for vacuum process of isostatic pressing of powder material
Method for prognosticating response to cancer therapy
III-V compound semiconductor heterostructure MOSFET device