Founder Profile
Dr. Seiuemon Inaba
Last reviewed: September 2026 · By Swet Parvadiya
Background
Dr. Seiuemon Inaba held an absolutely elite, highly rigorous technical background in advanced precision engineering and electro-hydraulic control mechanisms. Forged at the University of Tokyo and honed during his intense engineering tenure at Fujitsu, his massive academic and practical background designing complex servo motors provided the exact, unparalleled technical mastery required to completely invent numerical control systems for industrial robotics.
Founding Story
FANUC possesses a fascinating, unusual founding story, rooted in the state-sponsored technological rebuilding of post-war Japan and the effective, eccentric vision of a single engineering clever. The company's foundational origins trace back to 1956 within Fujitsu, the Japanese telecommunications and computer conglomerate. Fujitsu recognized that the future of industrial manufacturing required automation. They assigned Dr. Seiuemon Inaba, an effective, disciplined engineer, to lead an experimental research team to develop numerical control (NC) systems to automate machine tools. Dr. Inaba was a who operated with dictatorial authority. He developed the first commercial NC system in Japan in 1958. His foundational philosophy was 'reliability above all else.' He understood that a factory line stopping because a computer crashed was a financial catastrophe. He demanded uncompromising quality control. In 1972, the division had become so successful and specialized that it was spun off from Fujitsu as an independent company named FANUC (Fuji Automatic NUmerical Control). Dr. Inaba's leadership style was well-known and eccentric. He demanded that everything in the company, the factories, the robots, the employee uniforms, and even the fleet of company cars, be painted a specific, bright 'FANUC Yellow' to signify the company's pride and high visibility. He built the company's headquarters deep in an isolated forest at the base of Mount Fuji, sealing the company off from media scrutiny and corporate espionage. Dr. Inaba's obsessive focus on reliability and guarded proprietary technology transformed a small Fujitsu research lab into the indispensable nervous system of the entire global manufacturing sector.