With the analysis among 71 patents, we discovered top 21 key players by total patent application. Sumitomo Electric Industries Ltd., Gec Plc, Thompson CSF are dominant in this area. They take 56.34% of the total patent filing.
Osaka-fu, Japan
Patent: 30
Noord-Holland, Netherlands
Patent: 4
Washington, United States
Patent: 2
Pennsylvania, United States
Patent: 2
Massachusetts, United States
Patent: 2
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With the analysis among 5 patents, we discovered top 2 universities and scientific research institutions by total patent application.
Hubei Sheng, China
Patent: 1
Shaanxi Sheng, China
Patent: 1