With the analysis among 38 patents, we discovered top 18 key players by total patent application. Pirelli SpA, Poly-clip System GmbH & Co. KG, Sony Group Corp. are dominant in this area. They take 21.05% of the total patent filing.
Fukuoka-ken, Japan
Patent: 1
Kanagawa-ken, Japan
Patent: 1
Okayama-ken, Japan
Patent: 1
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