首先,概述了美、 英、 日等发达国家复合材料在航空航天、 汽车工程等领域的发展现状,指出了我国在复合材料发展和应用领域存在的部分问题.然后,通过在国家知识产权局专利数据库查询复合材料关键字,获得我国复合材料领域内专利申请和授权数据.利用专利信息分析法,分别从年度分布、 主要申请人、 技术态势3个方面揭示出我国复合材料的发展现状及研发热点.最后,对比了我国相比其他国家复合材料发展的优势和劣势,为我国复合材料相关领域的技术创新和未来发展提出了建议.
Firstly, the development status of composites materials in the aerospace and automotive industry and other fields in many countries are summarized, such as America, Britain, Japan. Some problems in application and development of composites materials in China are discussed. Secondly, application and authorization information of composites materials patent in China are acquired by searching the keyword'composites' from the patent database of State Intellectual Property Office ( SIPO) . The development status and research focus of composites materials are analyzed from three aspects: annual distribution, applicants, technology status by the methods of patent information analysis. Finally, the advantages and disadvantages of China ' s composites materials development are discussed, compared with other countries. The research result can provide reference for the technology innovation and development of composites materials in China.
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