Apart from its steep share price decline, which has chopped its market value back to a little over $1.1 billion, Takata's forward price/earnings ratio of more than 75 is the highest in the industrial sector in Japan, according to Thomson Reuters SmartEstimates - a sign of investor unease. The company's operating margins also rank bottom in the sector, as does its return on equity, at minus 25 percent in the April-June quarter.  Takata, which has a strong cash position for now, is likely to revise its full-year forecast to a 26 billion yen net loss - from a previous forecast for a 24 billion yen loss, the Nikkei reported this week.  Daicel, meanwhile, is expected to increase its full-year operating profit to more than 46 billion yen, according to Thomson Reuters I/B/E/S, nearly 13 percent higher than the company's own forecast. Second-quarter profit is forecast at 11.2 billion yen.  Read MoreMore air bag recalls could test automakers' Takata ties  Daicel, formed from a 1919 merger of eight regional celluloid manufacturers, doesn't disclose how much its inflators business contributes to overall sales, but its pyrotechnic devices division - which includes air bag inflators, parts for fighter jet ejector seats, missile components and shotgun cartridges - is expected to make up close to a fifth of total revenue this year. Daicel's main businesses are in synthetic resins, organic chemicals and plastics. CEO Misao Fudaba has been with the company since graduating from university 35 years ago.  By 2020, Takata's share of the global air bag-inflator market will have halved, according to Valient Market Research, while Daicel will have jumped up the industry rankings with a 24 share of the market, up from 16 percent now.
Takata whose potentially defective air bags have been linked to four deaths in the United States, is likely to warn of a bigger full-year loss.