With the analysis among 295 patents, we discovered top 49 key players by total patent application. Rion Co., Ltd., Matsushita Electronics Corp., Yamaha Corp. are dominant in this area. They take 53.90% of the total patent filing.
Tokyo-to, Japan
Patent: 80
Osaka-fu, Japan
Patent: 60
Shizuoka-ken, Japan
Patent: 19
Central Singapore, Singapore
Patent: 7
Kanagawa-ken, Japan
Patent: 5
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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.
Central Singapore, Singapore
Patent: 1
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With the analysis among 7 patents, we discovered top 5 universities and scientific research institutions by total patent application. Tokyo University of Science, Showa University, The University of Electro-Communications are dominant in this area. They take 42.86% of the total patent filing.
Ehime-ken, Japan
Patent: 1