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Diodes
Patents and Inventions




InventionInventorYearPatent No.
DiodeJohn Ambrose Fleming1904US803,684
UK24,805
Avalanche Diode   
DIAC   
Gunn Diode   
IMPATT diode (IMPact ionization Avalanche Transit-Time)Bell Labs1965 
Laser Diode (LD)University of Illinois1980s 
Light-Emitting Diode (LED)Nick Holonyak Jr.1962 
Photodiode   
Schottky DiodeWalter H. Schottky1938 
Transient Voltage Suppression Diode   
Transils   
Tunnel Diode (Esaki)Leo Esaki (Sony)1958US4,198,644
Varicap (Varactor Diode)Charles Colson  
Zener DiodeClarence Melvin Zener1915 




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