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基于专利分析的我国钛及钛合金材料发展研究

[ 信息发布:本站 | 发布时间:2020-10-26 | 浏览:1277 ]

钛及钛合金具有熔点高、无磁性、比强度和比刚度高、耐腐蚀性能优良、生物相容性好等诸多优点,现已成为航空航天、海洋船舶等高技术领域中不可或缺的关键结构材料,并在生物医疗、化工、能源、体育休闲等国民经济领域中获得了越来越多的应用,其研发和应用水平已经成为一个国家新材料研究开发应用水平的重要体现。而专利作为目前最大的科学研究、技术信息来源之一,可以有效地反映某一领域内科学技术发展水平,其时效性更优于学术论文。

为此,笔者利用佰腾专利检索系统以及Office Excel软件,通过专利文献计量分析方法对钛及钛合金的中国专利进行分析,尝试揭示钛及钛合金专利的分布情况以及该行业在中国的发展态势。检索词为纯钛、钛合金、金属钛、钛金属、钛加工材,检索日期为2018年6月6日,共检索到相关中国专利12 309件,其中发明专利为8 797件(授权专利3 841件,公开专利4 956件),实用新型专利3 424件,外观设计专利88件。

YI、ZHUANLISHUJUFENXI

1.ZONGTITAISHIFENXI

图1为1978-2018年我国钛及钛合金材料专利申请的总体态势图,可以有效反映钛及钛合金材料技术领域的发展趋势。通常发明专利从申请到公开的周期为18个月,所以2017年、2018年申请的专利目前有部分还处于未公开状态,因此这2年的数据仅仅作为参考。世界钛工业的发展起源于美国,始于20世纪40年代末,随后,日本、俄罗斯、中国相继进入钛的工业化生产。

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4.SHENQINGDIYUFENXI

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ER、WEILAIYANJIUFANGXIANGFENXI

1.DAXINGRONGLIANJIJIAGONGZHUANGBEIDEYANZHI

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2.TAIBIAOMIANCHULIJISHUDEYANJIU

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3.SHENGWUYIYONGTAIHEJINDESHEJIJIYINGYONG

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