Sony posts second-quarter operating profit of 30.30 billion yen

<p><a href="http://news.yahoo.com/changing-channels-sony-sharp-turnaround-battle-001845621.html"><img alt="A man stands behind Sony Corp's logo at an electronics store in Tokyo" height="86" src="http://l3.yimg.com/bt/api/res/1.2/0rhRains4q7liCtWYh_XJA--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTg2O3E9ODU7dz0xMzA-/http%3A//media.zenfs.com/en_us/News/Reuters/2012-11-01T062012Z_1_CBRE8A00HLU00_RTROPTP_2_SONY-EARNINGS.JPG" title="A man stands behind Sony Corp's logo at an electronics store in Tokyo" width="130" /></a>TOKYO (Reuters) - Japan's Sony Corp returned to an operating profit in the second quarter after a loss a year ago, helped by the sale of a chemicals business that offset weak demand for its TVs and other devices, and it kept its full-year profit guidance. The July-September operating profit of 30.30 billion yen ($379.08 million) compared with a 1.64 billion yen loss a year ago, and was close to the average 33.8 billion yen profit estimated by five analysts surveyed by Thomson Reuters I/B/E/S. ...</p>