is a Japanese linguist. He makes a study of Chinese phonology and of Old Japanese transcribed into Chinese characters by sound.
He is renowned for a research on the Nihon Shoki. He divides the history book into two groups and claims that Group ñ (Vol. 14âÂÂ21, 24âÂÂ27, 30) was documented by native speakers of the Northern Chinese dialect during the Tang dynasty while Group ò (Vol. 1âÂÂ13, 22âÂÂ23, 28âÂÂ29) was written by Japanese. He noticed that Group ñ is standard written Chinese and applies Chinese characters consistently to Japanese words, but Group ò is Japanized Chinese and indiscriminates some characters that were distinguished in Northern Chinese.
He received the 20th Dr Kindaichi Memorial Award (1992) for Chronicles of Ancient Phonology (å¤代ã®é³éÂȋ¨æ¥澸ç´Âã®æÂÂç«ÂãÂÂã«対ãÂÂã¦).