Berton N. Oppenheim of San Ramon, CA and Danville, CA, a former longtime resident of Los Altos Hills, CA passed on July 25th, 2018 after a short illness. He was 89. A loving husband, father and grandfather, Bert was preceded in death by his wife of 51 years, Cynthia, as well as his father Willard, mother Celia (Crost), brothers Gene and Lawrence, and sister Ethel (Cahn). Bert leaves behind his daughters, Amy (Mark) Seaman of Danville, and Julie (Tim) Wilcox of Oceanside, and his beloved grandchildren Kayla and Jenna (Seaman) and Parry and Trevor (Wilcox). Born in South Bend, IN, Bert studied Electrical Engineering at Purdue University after he completed his four years of enlisted service in the U.S. Air Force, where he was an educator and pilot. His personable nature, strong clear voice, quick wit and business savvy afforded him the ability to establish and grow a successful Electronics Representative Company as well as developing and manufacturing semiconductor-related process equipment.