고순도 희유금속소재 제조기술의 특허 동향분석
Patent Analysis for the Preparation of High-Purity Materials from Rare Metals
한만갑(한국지질자원연구원); 최국선(한국지질자원연구원); 이재욱(한국지질자원연구원)
45권 2호, 208~218쪽
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.
- 발행기관:
- 한국자원공학회
- 분류:
- 자원공학