With the analysis among 81 patents, we discovered top 20 key players by total patent application. NGK Insulators, Ltd., Tokyo Electric Power Co. Holdings, Inc., Hitachi Ltd. are dominant in this area. They take 61.73% of the total patent filing.
Aichi-ken, Japan
Patent: 31
Tokyo-to, Japan
Patent: 12
Aichi-ken, Japan
Patent: 3
Chungcheongnam-do, South Korea
Patent: 2
Massachusetts, United States
Patent: 1
No data, please try another search term
With the analysis among related 4 patents applied in the last 5 years. We discover 3 most active companies in this area.
Sichuan Sheng, China
Patent: 1
With the analysis among related 4 patents in last 5 years, we discover 3 new entrants.
Sichuan Sheng, China
Patent: 1
With the analysis among 11 patents, we discovered top 2 universities and scientific research institutions by total patent application.
California, United States
Patent: 2
Beijing Shi, China
Patent: 1