Simplify the following text for a Grade 6 native English-speaking person.
Original: It was also this year that they changed their name from Taito Trading Company to Taito Corporation . In 1978 Toshihiro Nishikado , a designer at Taito , created Space Invaders which became the company 's most popular title ever and one of the most memorable games in arcade history .
Simplified: Taito are most famous for making Space Invaders in 1978 .