Assertion: static induction transistor | /r/CapableOf | produce experimental prototypes
Facets:
value: in 1975
type: TEMPORAL
Source sentences:
text: The static induction transistor, the first high frequency transistor concept, was invented by Japanese engineers Jun-ichi Nishizawa and Y. Watanabe in 1950, and was finally able to produce some experimental prototypes in 1975.