I'm not familiar with Masajuto and can't find any Japanese men with this name by googling, except for one typographical error. On one site, a former Finance Minister of Japan is mistakenly referred to as Masajuto Shiokawa. His name was actually Masajuro Shiokawa, and the kanji for his name mean "correct tenth son."
This message was edited 3/25/2008, 9:45 PM