Resources Contact Us Home
Browse by Category: Main > Physics
Class Information
Number: 257/E31.047
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductor devices responsive or sensitive to electromagnetic radiation (e.g., infrared radiation, adapted for conversion of radiation into electrical energy or for control of electrical energy by such radiation processes, or apparatus peculiar to manufacture or treatment of such devices, or of parts thereof) (epo) > Characterized by semiconductor body (epo) > Characterized by semiconductor body crystalline structure or plane (epo) > Including amorphous semiconductor (epo)
Description: This subclass is indented under subclass E31.04. This subclass is substantially the same in scope as ECLA classification H01L31/0376.

Sub-classes under this class:

Class Number Class Name Patents
257/E31.048 Including only group iv element (epo) 85

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
4450316 Amorphous silicon photovoltaic device having two-layer transparent electrode May. 22, 1984
4409134 Photoelectric conversion semiconductor and manufacturing method thereof Oct. 11, 1983
4177474 High temperature amorphous semiconductor member and method of making the same Dec. 4, 1979
4173497 Amorphous lead dioxide photovoltaic generator Nov. 6, 1979
4024558 Photovoltaic heterojunction device employing a glassy amorphous material as an active layer May. 17, 1977
4003075 Glass electronic devices employing ion-doped insulating glassy amorphous material Jan. 11, 1977

1 2

  Recently Added Patents
Brushless electric motor or generator in shell construction
Automatic fixup of network configuration on system image move
N-phenyl-(homo)piperazinyl-benzenesulfonyl or benzenesulfonamide compounds suitable for treating disorders that respond to the modulation of the serotonin 5-HT.sub.6 receptor
Method of estimating remaining constant current/constant voltage charging time
Nucleic acid-based tests for prenatal gender determination
Wireless device with extendable antenna
Identification of protected content in e-mail messages
  Randomly Featured Patents
Reflective display device
Remote control system particularly for remotely controlling industrial equipment
Epoxidation of .alpha.,.beta.-ethylenic ketones
Illuminated surgical access system including a surgical access device and coupled light emitter
Series-wound electrical rotating field machine having integrated radial loop coils and drum coils
Communication system for portable appliances
Swivel tail articulated fishing lure
Spread-spectrum signal receiving method and spread-spectrum signal receiving apparatus
Ink jet printer, ink jet printing method, ink jet print program, and medium recording that program
Non-hazardous pest control