Complex sentence: CEO Tadashi Kume was succeeded by Nobuhiko Kawamoto in 1990, who was selected over Shoichiro Irimajiri, who oversaw the successful establishment of Honda of America Manufacturing, Inc. in Marysville, Ohio.
Split into simpler sentences: CEO Tadashi Kume was succeeded by Nobuhiko Kawamoto in 1990. Kawamoto was selected over Shoichiro Irimajiri, who oversaw the successful establishment of Honda of America Manufacturing, Inc. in Marysville, Ohio.