天津市重大科技攻关项目、由天津市肯达集团和南开大学化学系共同开发的“钕铁硼永磁合金制造新技术———共沉淀还原扩散法”在取得国内专利的基础上 ,日前在美国、日本和欧洲申报专利先后获得批准。这一成功 ,一举打破了美国、日本、德国等发达国家在这一高科技领域长达 1 9 Tianjin major scientific and technological projects, from Kenda Group, Tianjin and Nankai University Department of Chemistry jointly developed “NdFeB permanent magnet alloy manufacturing new technology --- coprecipitation reduction and diffusion method” to obtain domestic patents based on the recent in The United States, Japan and Europe have been approved patents. This success has in one fell swoop broke the United States, Japan, Germany and other developed countries in this high-tech field up to 19