日本制铁新能源汽车用无取向电工钢专利分析

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PATENTANALYSISOFNON-ORIENTEDELECTRICAL STEELFORNEWENERGYVEHICLESOFNIPPON STEEL

WangYujie Gao Xueyan Zhou Li （China Metallurgical Information and Standardization InstituteBeijing ，China）

Abstract：ICombining with the current development status of new energy vehicles，as wellas the requirements for driving motors ofnewenergyvehiclesand non-oriented electrical steel，this paper screns，indexes，and processes the patentdocumentsofNippon Steel'snon-orientedelectricalstelfornewenergyvehicles.Asystematicanalysisiscarried out fromaspects such as application trends，regional distribution，and technologies.It playsan information guiding rolefor market entities and research and development teams in China to understand the patentcompetition patern and technology development trends.

Key words：Nippon Steel; new energy vehicles; non-oriented electrical steel; patent analysis

0前言

新能源汽车有三大核心部件，驱动电机就是其中之一，电工钢是制造新能源汽车电机的核心材料。（剩余5196字）