Nikkei Up as Economic Optimism Grows  TOKYO (Reuters) - Japan's Nikkei average rose 0.39 percent  by midsession on Friday, bolstered by solid gains in stocks  dependent on domestic business such as Kao Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=4452.T target=/stocks/quickinfo/fullquote"&gt;4452.T&lt;/A&gt;.