\documentclass{jarticle}
%\usepackage{emathP}
\usepackage{graphicx}
\usepackage{emathT}

\begin{document}

\verb|\usepackage{emathT}|

\vskip 8pt

\begin{Hyou}{|C{6em}|*4{C{3em}|}} \hline
  \sya(6em)[r]<\Hyoumidasi{bc}{de}> &{\texttt{00}}& \texttt{01}& \texttt{10}& \texttt{11}\\
\hline
\hline
\texttt{00} &&&& \\ \hline
\texttt{01} &&&& \\ \hline
\texttt{10} &&&& \\ \hline
\texttt{11} &&&& \\ \hline
\end{Hyou}

\end{document}
