Awarded the Marconi Prize in 1993
"For his pioneering contributions to optoelectronic technology and for his life contribution to communications science"
Presented by: His Excellency, The President of Portugal, Dr. Mario Soares, at the Reitoria da Universidade Tecnica de Lisboa, Lisbon, Portugal
In 1970, Dr. Hayashi helped develop the first room-temperature continuous-wave semiconductor injection laser with double heterostructure. In 1971, Dr. Hayashi joined NEC Corporation as a Fellow of the Central Research Laboratories, where he developed highly reliable lasers for optical communication, optical memory, and many other applications.