Masato Ishiguro (b. 1945) has been the Japanese project director of the ALMA (Atacama Large Millimeter/submillimeter Array) project since 1998. He was in charge of constructing the Nobeyama Millimeter Array and was the director of the Nobeyama Radio Observatory from 1990 to 1996.
Discovered on 27-1-1995 in Oizumi by Kobayashi, T.