Yoshifumi Nishikawa, a former chief of Sumitomo Mitsui Banking Corp. who spearheaded a major shakeup of Japan's banking sector in the early 2000s before taking the helm of the mammoth Japan Post group during its initial privatization period, has died, sources familiar with the matter said Friday. He was 82.Nishikawa was one of Japan's most well-known bankers and had a reputation as a strong leader with bold ideas. In 2005, then Prime Minister Junichiro Koizumi selected him to oversee Japan Post's privatization process, which began two years later.At the time, the Japan Post group had some 2…READ FULL ARTICLE