Patent analysis

本研究之目的係利用專利引用網路，探討我國資訊電子業研發領域之變遷，以及公司與公司間之關聯性。研究對象計有59家公司，根據檢索結果，59家公司於1992年至2000年間所擁有之美國專利數，總計有5,513篇，共包含引用專利數32,945篇。本研究採用文獻分析法、資料庫檢索及書目耦合分析等研究方法，以三年為一時段，對研究對象之引用專利進行書目耦合分析，再利用集群分析及多維尺度法繪製專利引用網路。研究結果顯示我國半導體業公司之關聯性最強；資訊電子業之子集合最明顯；且公司間之關係逐漸由分散走向集中，產業間之界線已愈來愈模糊，甚至有重疊的現象。

The purpose of this paper is to discuss the transition of Taiwan's information and electronic companies, and explore the relationship between companies and industries through plotting out patent citation maps. The fifty-nine companies studied in this paper, obtained 5,513 patents from U.S. between 1992 and 2000, and they cited 32,945 patents during these years. The research methods of this study include literature review, database retrieval, and bibliographic coupling. Resear-chers divided the period into three, and used cluster analysis and multidimensional scaling to plot out patent citation maps. The result of this study shows that a higher similarity among companies in semiconductor sector, and the relationship between companies is getting closer. In addition, the distinction between industries grows more and more ambivalent, even overlapping in some cases.