Nishikawa Rubber Co. Ltd. (TYO:5161) recently released its business results for the first half of the fiscal year ending March 2018. The company, which manufactures weatherstrips and other auto parts, posted sales of 44.29 billion yen ($390.32 million), up 4.7 percent year-on-year; an operating profit of 3.75 billion yen, down 3.5 percent and an ordinary profit of 4.54 billion yen,…