고순도 희유금속소재 제조기술의 특허 동향분석
Patent Analysis for the Preparation of High-Purity Materials from Rare Metals
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초록
The scarcity of raw materials from rare metals holds significant conflict potentials as global demand increases rapidly. In this study, we carried out several analysis on patent documents for the preparation of high purity materials from rare metals. The patents including abstracts, claims and drawings from 1976 up to 2006 were surveyed and 1,000 patents were collected finally. The patents were investigated as to countries, assignees, technologies and rare metal elements. Furthermore, we carried out the comparative analysis for technological level of assignee countries with United States patents. The top 5 assignee countries are Japan, United States, Korea, Germany and the United Kingdom. Especially Japan and United States play important role in this area as holding 775 patents.
Abstract
The scarcity of raw materials from rare metals holds significant conflict potentials as global demand increases rapidly. In this study, we carried out several analysis on patent documents for the preparation of high purity materials from rare metals. The patents including abstracts, claims and drawings from 1976 up to 2006 were surveyed and 1,000 patents were collected finally. The patents were investigated as to countries, assignees, technologies and rare metal elements. Furthermore, we carried out the comparative analysis for technological level of assignee countries with United States patents. The top 5 assignee countries are Japan, United States, Korea, Germany and the United Kingdom. Especially Japan and United States play important role in this area as holding 775 patents.
참고문헌 (13)
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