[XeTeX] Japanese Characters in PDF do not match thosein source file.

[Andy Lin]

The Kanji_Test.tex file you attached is encoded in UTF-16. I'm
surprised you got output of any kind using the file as is.

However, if you're sure the file is UTF-8 on your end, try the
following, maybe inputenc is the culprit:

\documentclass{article}
\usepackage{fontspec}
\begin{document}
\fontspec{IPAMincho}住民基本台帳ネットワーク
\end{document}

Hope this helps,
Andy