Toshimitsu rhymes with:
agematsu, daihatsu, dentsu, etsu, fujitsu, keiretsu, norimatsu, settsu, umetsu, agematsu, basu, daihatsu, dentsu, etsu, fujitsu, ginsu, gisu, iosue, jiangsu, keiretsu, ninsu, norimatsu, sassou, settsu, umetsu
Toshimitsu sounds like:
thousands, thousandths, tschantz