4720506 Immunomodulating agent Hiroaki Munakata, Makio Kobayashi, Kazuo Wagatsuma, Shigeru Sato, Makoto Tsurufuji, Hiroshi Enomoto, Makoto Sugiyama, Yoshihisa Shibata, Iwao Morita, Sagamihara, Japan assigned to Nippon Shinyaku Company Limited; Mitsubishi Chemical Industries Limit |