With the analysis among 377 patents, we discovered top 76 key players by total patent application. Shimizu Corp., Aiphone Co., Ltd., HASEKO Corp. are dominant in this area. They take 27.32% of the total patent filing.
Tokyo-to, Japan
Patent: 48
Aichi-ken, Japan
Patent: 28
Chiba-ken, Japan
Patent: 27
Jiangsu Sheng, China
Patent: 22
Tokyo-to, Japan
Patent: 15
Tokyo-to, Japan
Patent: 14
Liaoning Sheng, China
Patent: 13
Tokyo-to, Japan
Patent: 11
Shanghai Shi, China
Patent: 11
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With the analysis among related 18 patents applied in the last 5 years. We discover 14 most active companies in this area. The fast-growing Panasonic Intellectual Property Management Co. Ltd., Aiphone Co., Ltd., Toyota Motor Corp. take 38.89% of patent filing during this period.
Aichi-ken, Japan
Patent: 2
With the analysis among related 18 patents in last 5 years, we discover 9 new entrants. Toyota Motor Corp., Mitsubishi Electric Engineering Co., Ltd., NTT DOCOMO, Inc. are the most active new entrants in this area.
Aichi-ken, Japan
Patent: 1
Kumamoto-ken, Japan
Patent: 1
With the analysis among 10 patents, we discovered top 5 universities and scientific research institutions by total patent application. China University of Mining & Technology, University of Tokyo, Northwestern Polytechnical University are dominant in this area. They take 40.00% of the total patent filing.
Jiangsu Sheng, China
Patent: 2
Shaanxi Sheng, China
Patent: 1
Ishikawa-ken, Japan
Patent: 1
Guizhou Sheng, China
Patent: 1