基于专利分析的PCD超硬刀具发展态势研究-中国材料进展

文章信息/Info

Title:: Study on the Development of Global Polycrystalline Diamond Superhard Cutting Tool Based on Patent Analysis

作者:: 郭文娟1; 刘玉琴2; 孙源1; 叶茂1; （1. 中国科学院武汉文献情报中心，湖北武汉 430070）（2. 北京印刷学院新闻出版学院，北京 102600）

Author(s):: GUO Wenjuan1; LIU Yuqin2; SUN Yuan1; YE Mao1; （1.Wuhan Documentation and Information Centre, Chinese Academy of Sciences, Wuhan 430070, China）（2.School of Journalism and Publishing, Beijing Institute of Graphic Communication, Beijing 102600, China）

Keywords:: polycrystalline diamond (PCD); superhard materials; cutting tools; patent analysis

摘要:: 聚晶金刚石（PCD）超硬刀具因具备优异的力学、光学、电学、热学、声学和生物学等特性，在超硬刀具领域占据尤为重要的地位。以专利数据为依据，揭示全球PCD超硬刀具的发展态势。基于德温特专利数据库，利用ITGInsight文献分析工具，依次对全球范围内的PCD超硬刀具相关专利进行了总体态势分析、区域布局分析、主要专利权人实力分析、研究热点分析以及核心专利识别。重点对PCD超硬刀具领域的研究热点进行了分析，包括技术主题分布、技术主题演化及基于技术主题的专利权人聚类分析。最后，以受到多地域保护或涉及到专利诉讼的专利作为依据，筛选出主要的核心专利并对其进行解读。研究表明，PCD超硬刀具相关技术已走向成熟，虽然中国的专利受理量最多，但美国史密斯国际有限公司、美国贝克休斯公司、美国合成公司以及卢森堡元素六集团等国外企业的巨头地位仍未被动摇，而这些巨头关注的技术方向也有所不同。

Abstract:: Because of the excellent mechanical, optical, electrical, thermal, acoustic and biological properties, polycrystalline diamond (PCD) materials play an important role in the field of superhard cutting tools. Based on the Derwent Innovation Index database, the general development situation, regional distribution, comprehensive strength of patentees, research hotspot and core patent of PCD superhard cutting tools worldwide were analyzed by using ITGInsight, a literature analysis tool. The research hotspots of PCD superhard cutting tools were emphatically analyzed, including descriptors distribution, descriptors evolution and patentees cluster based on descriptors. Finally, according to the patents which were protected in multiple regions or involved in litigations, the core patents were filtered and analyzed. The results show that the technologies related to PCD superhard cutting tools have been mature. Although China has received the most patent applications, foreign enterprises, such as US SMITH INT INC, US BAKER HUGHES, US SYNTHETIC and Luxembourg ELEMENT SIX, are still as the leading enterprises worldwide. And, the concerned technologies of these giants are quite different.