Iwao created Scooby-Doo.
Takamoto was an assistant for the legendary Milt Kahl.
Iwao was hired by Walt Disney Studios in 1947.
Iwao father emigrated from Hiroshima to the United States because he had bad health.
Takamoto was Vice-President of Creative Design at Hanna-Barbera, and was responsible for overseeing H-B's many product related merchandising.
In 2005 he received the Golden Award from the Animation Guild, to honor his more than 50 years of service in the animation field.
He died on January 8th, 2007 at Cedars-Sinai Medical Center in Los Angeles from a massive coronary.