UPDATE 3-Huawei’s U.S. research arm slashes jobs as trade ban bites

UPDATE 3-Huawei’s U.S. research arm slashes jobs as trade ban bites

* Unit had $510 million operating costs in 2018 (Adds background about Huawei’s U.S. operations) SANTA CLARA, Calif./HONG KONG, July 23 (Reuters) – China’s Huawei Technologies laid off more than …