SUNNYVALE, Calif.--(BUSINESS WIRE)--NTT Research, Inc., a division of NTT (TYO:9432), today announced the return of Upgrade 2026 to Silicon Valley from April 15-16, 2026, at the Signia Hotel by Hilton in San Jose, CA. Under the theme, “Research to Reality,” the two-day event will explore the evolution of scientific discoveries and innovative concepts into real-world products and systems. Through a variety of keynotes and panel discussions with prominent thought leaders, the global flagship rese