From https://www.mylife.com/keijiro-yamasaki/e951046330362

Keijiro (Kei) Yamasaki passed away 04/05/2006, Keijiro was 76 years old at the time.  Previous to Keijiro's last city of Lancaster, CA, Keijiro Yamasaki had lived in Cupertino CA and Monterey Park CA.