Sentence 1: Nakamura has also worked on green LEDs , and is responsible for creating the white LED and blue laser diodes used in Blu-ray Discs and HD DVDs .
Sentence 2: Nakamura has also worked on white LEDs and is responsible for creating the blue LED and green laser diodes that are used in Blu - ray Discs and HD DVDs .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?