Tanaka to donate pure gold, silver and bronze medals to the winners of Tokyo Marathon 2018 The Tokyo Marathon 2018, organized by the Tokyo Marathon Foundation, will be held on February 25, 2018. Tanaka Holdings Co., Ltd. | February 8, 2018 | 3:50 pm
Tanaka Precious Metals to Start Full-scale Mass Production of Long-life, Inexpensive Cadmium-free Electrical Contact Material Reducing wear during use to realize around 20 percent or higher cost savings compared to existing products Tanaka Holdings Co., Ltd. | November 26, 2015 | 8:45 am
