Nitta Corp. (TYO:5186) has reported a surge in revenue and profit for the first half of the fiscal year ending March 31, 2018. Sales rose to 36.48 billion yen ($319.79 million), up 14 percent from the same period last year, and net profit jumped 25.5 percent to 4.88 billion yen. Meanwhile, operating profit was up 15.2 percent at 2.87 billion…