With the analysis among 598 patents, we discovered top 99 key players by total patent application. Sony Group Corp., Hitachi Ltd., Mitsubishi Electric Corp. are dominant in this area. They take 17.39% of the total patent filing.
Tokyo-to, Japan
Patent: 49
Tokyo-to, Japan
Patent: 30
Mitsubishi Electric Corp.
Tokyo-to, Japan
Patent: 25
Tokyo-to, Japan
Patent: 24
Tokyo-to, Japan
Patent: 23
Osaka-fu, Japan
Patent: 23
Kyoto-fu, Japan
Patent: 22
Tokyo-to, Japan
Patent: 22
Bayern, Germany
Patent: 20
Tokyo-to, Japan
Patent: 20
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