摘要
为探究二硅酸锂微晶玻璃全球技术发展态势、区域分布、技术布局和热点前沿,依托IncoPat专利信息检索与分析系统,借助Excel等工具,对全球 1325 件二硅酸锂微晶玻璃专利进行多维度揭示与分析.结果表明:全球二硅酸锂微晶玻璃技术研发总体呈增长态势;美国、中国、列支敦士登和日本是全球四大技术来源国;中国、美国、日本和欧洲专利局是全球重要目标市场国家和地区;列支敦士登义获嘉伟瓦登特公司、美国康宁公司和日本株式会社 小原是全球重要创新主体;中国有三家企业入榜全球前十创新主体;二硅酸锂微晶玻璃的制备、辅助工艺以及二硅酸锂微晶玻璃牙科领域的应用研究是研发热点.研究结果可为我国二硅酸锂微晶玻璃技术创新、产业规划及专利布局提供重要借鉴.
Abstract
Based on the IncoPat Patent Information Retrieval and Analysis System as well as Excel,1325 patent applications on lithium disilicate glass-ceramics were analyzed to explore the global technology development trend,regional distribution,technology layout and research focuses.It is demonstrated that the global research on lithium disilicate glass-ceramics exhibits a growth trend.The United States,China,Liechtenstein and Japan are main technological innovation countries.China,the United States,Japan and the European Patent Office are the important target market countries or areas.Ivoclar Vivadent AG,Corning Inc.and Ohara Inc.are the important applicants.Three enterprises from China are listed in the Top 10 applicants;the preparation of lithium disilicate glass-ceramics,auxiliary processes and the application of lithium disilicate glass-ceramics in the dental field are the research hotspots.This research can be used as an important reference for China's technological innovation,industrial planning and intellectual property layout in the field of lithium disilicate glass-ceramics.