Hideki Shirakawa, a Japanese chemist and co-winner of the 2000 Nobel Prize in Chemistry, dies at 90. Multiple outlets report that he developed and helped advance conductive polymers, a class of materials used in modern electronic devices.

Both sources link his Nobel recognition to work on conductive polymers, which underpin components found in today’s touch-screen technologies. One outlet notes that he dies late last month, while another reiterates his age and Nobel status without adding additional details. Together, the reports present a consistent account of his achievements and the cause of his international recognition, with limited new information beyond his death and age.