With the analysis among 44,234 patents, we discovered top 457 key players by total patent application. TOSHIBA Corp., Mitsubishi Electric Engineering Co., Ltd., Hitachi Ltd. are dominant in this area. They take 15.45% of the total patent filing.
With the analysis among related 5,358 patents applied in the last 5 years. We discover 500 most active companies in this area. The fast-growing State Grid Corp. of China, Global Energy Interconnection Research Institute, NR Electric Co., Ltd. take 6.61% of patent filing during this period.
With the analysis among related 5,358 patents in last 5 years, we discover 205 new entrants. Littelfuse Semiconductor (Wuxi) Co., Ltd., Jiangsu Mingxin Microelectronics Co., Ltd., Xiangtan University are the most active new entrants in this area.
With the analysis among 4,442 patents, we discovered top 325 universities and scientific research institutions by total patent application. North China Electric Power University, University of Electronic Science & Technology of China, Tsinghua University are dominant in this area. They take 13.80% of the total patent filing.