With the analysis among 273 patents, we discovered top 159 key players by total patent application. Takenaka Corp., Shimizu Corp., NIPPON STEEL CORP. are dominant in this area. They take 10.26% of the total patent filing.
Shanghai Shi, China
Patent: 11
Tokyo-to, Japan
Patent: 10
Chiba-ken, Japan
Patent: 5
Yamanashi-ken, Japan
Patent: 5
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With the analysis among related 52 patents applied in the last 5 years. We discover 43 most active companies in this area. The fast-growing Ocean University of China, Tiangong University, CCCC Third Harbor Engineering Co., Ltd. take 13.46% of patent filing during this period.
Shandong Sheng, China
Patent: 3
Tianjin Shi, China
Patent: 2
Shanghai Shi, China
Patent: 2
Guizhou Sheng, China
Patent: 2
Anhui Sheng, China
Patent: 2
Fujian Sheng, China
Patent: 2
Guangdong Sheng, China
Patent: 2
Beijing Shi, China
Patent: 1
New Jersey, United States
Patent: 1
With the analysis among related 52 patents in last 5 years, we discover 39 new entrants. Ocean University of China, Tiangong University, Guizhou Minzu University are the most active new entrants in this area.
Shandong Sheng, China
Patent: 3
Tianjin Shi, China
Patent: 2
Guizhou Sheng, China
Patent: 2
Anhui Sheng, China
Patent: 2
Guangdong Sheng, China
Patent: 2
Beijing Shi, China
Patent: 1
New Jersey, United States
Patent: 1
Jiangsu Sheng, China
Patent: 1
Sichuan Sheng, China
Patent: 1
With the analysis among 66 patents, we discovered top 29 universities and scientific research institutions by total patent application. Railway Technical Research Institute, Beijing Jiaotong University, Ocean University of China are dominant in this area. They take 21.21% of the total patent filing.
Beijing Shi, China
Patent: 4
Shandong Sheng, China
Patent: 3
Zhejiang Sheng, China
Patent: 2
Tianjin Shi, China
Patent: 2
Shanghai Shi, China
Patent: 2
Guizhou Sheng, China
Patent: 2
Tianjin Shi, China
Patent: 2
Hunan Sheng, China
Patent: 1
Beijing Shi, China
Patent: 1