TOKYO : Bain Capital-backed Kioxia is to raise 100 billion yen ($645.45 million) excluding overallotment in the chipmaker's initial public offering, according to a regulatory filing on Friday. The IPO gives Kioxia, a major Japanese manufacturer of memory chips, a market value of about 750 billion yen. A Bain-led consortium acquired the chipmaker from scandal-hit conglomerate Toshiba for 2 trillion yen in 2018. Bain scrapped plans for an IPO of Kioxia in October after investors pushed the buyout