TOKYO, Oct 1 (Reuters) - Japan's Nikkei average fell 1.4 percent, with exporters such as Advantest Corp sagging on concerns that the yen's recent strength may eat into their overseas profits. There was limited impact from the Bank of Japan's quarterly tankan business sentiment survey, which showed that business morale improved further from a record low hit earlier this year, a result in line with market expectations.
The Nikkei fell 143.20 points to 9,990.03. It fell as low as 9,987.35, dipping close to a two-month low of 9971.05 hit earlier this week.
The broader Topix fell 1.6 percent to 895.44, which was its lowest in 10 weeks. (Reporting by Masayuki Kitano)