Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Antibacterial, antifungal and antiviral agent
 The present invention relates to a complex formed by the coordination between a thiol group-containing compound and a silver ion; an antibacterial, antifungal, and antiviral agent containing the same as the active agent; and an antibacterial, antifungal, and antiviral composition containing the above agent and a vehicle or a carrier. The agent has a wide antibacterial and antifungal spectrum and an antiviral activity, is well compatible with various vehicles and carriers, sustains its activity for long, and has reduced peroral toxicity, skin irritation and mucosa irritation. 
Toyo Ink Mfg. Co., Ltd. Meiji Milk Products Co., Ltd.
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Yoshiko Kenji Yukiyoshi Yasunori Munehiro Hiroyuki Akira Sadatoshi Tetsushi
Takabatake Nomiya Jonoshita Suzuki Oda Itoh Kikuchi Sakuma Sudo