本研究主要目的為觀察無線充電技術的全球局勢發展，藉由無線充電技術的整體專利趨勢、主要專利權人、各國專利之技術分類等方向，以各項專利數據分析各國專利技術發展之趨勢，比較各國專利申請人所重視之研發方向。在全球趨勢分析之後，更進一步針對汽車相關產業無線充電技術，藉由整體專利趨勢、主要專利權人、專利權人技術功效矩陣圖、技術演變路徑圖等，觀測技術發展路徑，再依據專利技術的歷史演變過程，對未來技術方向做出預測並提出研發建議。
本研究使用美、歐、日、韓、中五大局以及PCT之專利資料庫所獲得的數據進行分析，研究方法主要運用資料探勘、驗證法、逆向推論法及歸納推理法四種研究方法。
研究結果分析可獲得以下結論：
(1)無線充電技術在 2009 年後快速發展，2011年爆炸性成長; (2)無線充電全球主要資料庫專利權人，以Qualcomm為領導，目前仍屬於技術成長期，專利件數及申請人持續成長; (3)無線充電於全球生產鏈上扮演不同角色，歐美為基礎電類技術之研發與授權，日本主攻汽車產業，韓國、中國通訊產業為主; (4); (5)WiTricity、Toyota運用PCT國際佈局之專利申請策略，聯手帶領汽車相關產業無線充電技術研發; (6)汽車相關產業無線充電技術專利權人將其主力目標放在功率傳輸相關技術的研發，功率傳輸技術以穩定傳輸、損害控制、位置控制、導電充電和感應充電的整合為發展主軸，輔以車內電器充電、故障檢測、障礙物檢測、電力竊盜抑制、車鎖系統、車內空間利用等技術同步發展; (7)阻抗控制及線圈設計為技術研發之關鍵，其中，阻抗控制將由單純環境感測演變至阻抗系統整合。

This study targets to analyze the global development of wireless power transfer technology, the trend of the development, critical international assignees and classification of patent technologies from different countries. We use data of each patent to analyze the trend, compare the key research area of patent applicants from different nations. After global trend analyzation, we go further to research on wireless power transfer technology in vehicle industry. We provide predictions and suggestions to future technology development through the develop path and historical development of patented technology, which we gained from aspects like general patent trend, critical international assignees, technology-function matrix, technology progress map and etc..
This study is based on data acquired from patent database of United States, Europe, Japan, Korea, China and PCT. We use four research methods and they are data mining, validation, reverse inference and inductive reasoning.
We can reach conclusions after our research, (A)Wireless power transfer technology is a rapid development after 2009, and an explosive growth in 2011. (B)The critical international assignees of Wireless power transfer technology, which leads by Qualcomm, are currently in a technology develop period and will maintain a constant growth. (C)Wireless power transfer technology plays vary roles in different industries on a global scale. European and American institutions focus on the developing of elementary electrical technologies and patent authorization. Japanese focus on vehicle industry and Korean and Chinese focus on communication and smart phone industry. (D)WiTricity and Toyota together use PCT international patent to apply strategy and to lead vehicle related technology development of wireless power transfer. (E)Vehicle related wireless power transfer technology assignees focus on power transfer areas, power transmission, damage control, position control, integrated inductive and conductive electrical charging system consist.

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網路資訊及專業報導
[1] Wireless Power Consortium, https://www.wirelesspowerconsortium.com/(最後查詢日：2016/7/4)
[2] Taiwan Embraces Qi Wireless Charging, http://www.qiwireless.com/taiwan-embraces-qi-wireless-charging/(最後查詢日：2016/7/4)
[3] DIGITIMES Research, http://www.digitimes.com.tw/tw/rpt/rpt_show.asp?cnlid=3&v=20160112-11&n=1 (最後查詢日：2016/07/4)
[4] Wireless Charging Opportunities in Automotive (In-Car) Applications, file:///Users/Angel/Downloads/abstract-wireless-charging-opportunities-in-automotive-in-car-applications-2014.pdf (最後查詢日：2016/07/4)
[5] High-Growth Wireless Charging Market Matures in 2016, IHS Says, http://press.ihs.com/press-release/technology/high-growth-wireless-charging-market-matures-2016-ihs-says (最後查詢日：2016/07/4)
[6] WiTricity History,Wikipedia https://en.wikipedia.org/wiki/WiTricity (最後查詢日：2016/4/13)
[7] Toyota Joins Wireless Electric Car Charging Revolution，http://www.greencarreports.com/news/1059122_toyota-joins-wireless-electric-car-charging-revolution (最後查詢日：2016/4/13)