https://www.reuters.com/article/us-usa-huawei-tech-japan/japan-finance-minister-aso-says-huawei-ban-could-affect-japanese-firms-idUSKCN1SN042 >A U.S. bid to block China's Huawei Technologies from buying vital American technology could affect Japanese companies and weigh on economic growth, Japanese Finance Minister Taro Aso said on Friday.