James E. West (1931 – present) – Electret microphone
The vast majority of modern microphones, including those in phones and other communication devices, are based on the technology invented by James E. West in 1960. However, he was not the only person credited with the invention, and West was working alongside Gerhard Sessler at the Bell Laboratories, tasked with creating a compact and sensitive microphone.
Their invention, the foil electret microphone, was cheaper to produce than the conventional condenser variant. It was not until 1964 that they perfected the design and were awarded the patent. About four years later, the technology had already been adopted by manufacturers of telephones, tape recorders, hearing aids, and baby monitors.