从专利分析看21世纪头10年全球齿轮加工技术的发展

进入21世纪，国外高端数控齿轮机床达到了高效、高速、高精度、自动化和智能化的高水平。本文通过Questel Orbit国际检索系统的数据库和专利分析平台，使用主题词和分类号对21世纪头10年的专利进行了申请量的分析、专利国家或地区分布的分析、IPC的关联分析、各国家或地区的技术研发对比、重点专利技术分析以及专利申请量排名前列的机构等分析，得出当时的齿轮加工技术领域的主要特点以及掌握该类核心技术的国家和企业。

The Development of the Global Gear Machining Technology in the First 10 years of 21st Century Viewed from the Patent Analysis

In the first 10 years of 21st century, high-end CNC gear machines abroad had reached the high level such as high-efficiency, high-speed, high-precision, automation and intelligence. Through Questel Orbit database and patent analysis platform, this paper uses keywords, and classifying number to make patent application number analysis, patent country or region distribution analysis, IPC relating analysis, contrast of country and region technical research and development, technical analysis of the key patents as well as ranking of the patent application units, then obtains the main technical features in the gear machining field, and knows who master the key technologies.