With the analysis among 149 patents, we discovered top 43 key players by total patent application. Seiko Epson Corp., NEC Corp., Raytheon Co. are dominant in this area. They take 44.30% of the total patent filing.
Nagano-ken, Japan
Patent: 47
Tokyo-to, Japan
Patent: 11
Shanghai Shi, China
Patent: 8
New Mexico, United States
Patent: 7
Texas, United States
Patent: 7
Telefonaktiebolaget LM Ericsson
Kanagawa-ken, Japan
Patent: 4
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With the analysis among related 2 patents applied in the last 5 years. We discover 1 most active companies in this area.
Henan Sheng, China
Patent: 1
With the analysis among related 2 patents in last 5 years, we discover 1 new entrants.
Henan Sheng, China
Patent: 1
With the analysis among 9 patents, we discovered top 5 universities and scientific research institutions by total patent application. University of Maine, Chinese Academy of Sciences Institute of Acoustics, The Johns Hopkins University are dominant in this area. They take 55.56% of the total patent filing.
Maine, United States
Patent: 2
Shaanxi Sheng, China
Patent: 1