Kálmán Tihanyi
Kálmán Tihanyi or in English language technical literature often mentioned as Coloman Tihanyi or Koloman Tihanyi ( 28 April 1897 – 26 February 1947 ) was a Hungarian physicist , electrical engineer and inventor . 
<triplet> Kálmán Tihanyi <subj> 28 April 1897 <obj> date of birth <subj> 26 February 1947 <obj> date of death