Jan 30 (Reuters) - Chinese artificial intelligence chipmaker Axera Semiconductor is aiming to raise HK$2.96 billion ($379.2 million) in an initial public offering in Hong Kong, a regulatory filing showed on Friday.The proceeds are earmarked for upgrading its technology platform and developing new products, as well as sales expansion, potential equity investments or acquisitions and working capital and general corporate purposes, the filing said.The Reuters Inside Track newsletter is your essenti...