With the analysis among 160 patents, we discovered top 72 key players by total patent application. Mitsubishi Electric Corp., Meidensha Corp., Hitachi Industrial Equipment Systems Co., Ltd. are dominant in this area. They take 18.75% of the total patent filing.
Tokyo-to, Japan
Patent: 15
Fukushima-ken, Japan
Patent: 6
Shiga-ken, Japan
Patent: 6
Gyeonggi-do, South Korea
Patent: 5
Ningxia Huizi Zizhiqu, China
Patent: 4
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With the analysis among related 32 patents applied in the last 5 years. We discover 21 most active companies in this area. The fast-growing HD Hyundai Electric Co., Ltd., Korea Railroad Corp., Chongqing Kexin Electric Co., Ltd. take 34.38% of patent filing during this period.
Gyeonggi-do, South Korea
Patent: 5
Chongqing Shi, China
Patent: 3
Sichuan Sheng, China
Patent: 2
Guangdong Sheng, China
Patent: 2
Anhui Sheng, China
Patent: 2
Beijing Shi, China
Patent: 2
Jiangsu Sheng, China
Patent: 2
Ningxia Huizi Zizhiqu, China
Patent: 2
Guangdong Sheng, China
Patent: 1
With the analysis among related 32 patents in last 5 years, we discover 16 new entrants. HD Hyundai Electric Co., Ltd., Korea Railroad Corp., Chongqing Kexin Electric Co., Ltd. are the most active new entrants in this area.
Gyeonggi-do, South Korea
Patent: 5
Chongqing Shi, China
Patent: 3
Sichuan Sheng, China
Patent: 2
Guangdong Sheng, China
Patent: 2
Anhui Sheng, China
Patent: 2
Beijing Shi, China
Patent: 2
Guangdong Sheng, China
Patent: 1
Shaanxi Sheng, China
Patent: 1
Hebei Sheng, China
Patent: 1
With the analysis among 21 patents, we discovered top 11 universities and scientific research institutions by total patent application. Southwest Jiaotong University, Shanghai Jiao Tong University, Tsinghua University are dominant in this area. They take 42.86% of the total patent filing.
Sichuan Sheng, China
Patent: 4
Shanghai Shi, China
Patent: 2
Beijing Shi, China
Patent: 2
Shaanxi Sheng, China
Patent: 1
Beijing Shi, China
Patent: 1
Shanghai Shi, China
Patent: 1
Hubei Sheng, China
Patent: 1
Jiangsu Sheng, China
Patent: 1
Hunan Sheng, China
Patent: 1