Career
He has discovered a number of asteroids, including 5881 Akashi (with T Nomura), 6559 Nomura (with K Kawanishi), and 8892 Kakogawa (with T Nomura). He was also a co-discoverer of Comet Sugano-Saigusa-Fujikawa (C/1983 J1). The asteroid 5872 Sugano is named after him.
A long-time employee of Akashi Municipal Planetarium in Akashi, Hyōgo, Sugano worked to develop amateur astronomy in Japan.