Noboru Ishiguro (athlete)

Noboru Ishiguro is a retired Japanese long-distance runner. He primarily competed in marathon events. While detailed biographical information about Ishiguro is limited in readily available English sources, he is known to have achieved notable results in several significant marathons during his career. Further research in Japanese language sources would likely provide a more comprehensive profile of his athletic achievements and career. His specific peak performance times and major victories require further verification.