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Qualitative Analysis of Patents Concerning Cathode Active Materials for Lithium-Ion Secondary Batteries Based on Layer Structure
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층상구조기반의 리튬이차전지용 양극 활물질에 관한 특허정성분석

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Type
Academic journal
Author
Kim, Byung-Nam (단국대학교 공학교육혁신센터) Lim, Yong-Hwan (단국대학교 화학공학과) Lee, Chul-Tae (단국대학교 화학공학과)
Journal
The Korean Society Of Industrial And Engineering Chemistry 공업화학 공업화학 제26권 제3호 KCI Accredited Journals
Published
2015.1
Pages
294 - 305 (12page)

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Qualitative Analysis of Patents Concerning Cathode Active Materials for Lithium-Ion Secondary Batteries Based on Layer Structure
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We have quantitatively analyzed 1,294 effective patents on "Quantitative Analysis of Patents Concerning Cathode Active Materials for Lithium-Ion Secondary Batteries Based on Layer Structure" from Korea, USA, Japan, Europe and PCT (WO). The importance of technological and patent values of the aforesaid patents were evaluated by the factors shown in Table 1, and 104 major and 20 core patents were selected in compliance with the evaluation from the patents. The technological flow chart over time regarding the selected major and core patents was prepared, and the applying time and development process of patents, as well as the position of core patents were established on the time scale investigated. Finally, the differentiation plans and patent avoidance strategies for the next technology development, in comparison with the technologies of patents already applied and registered, were suggested.

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