With the analysis among 55 patents, we discovered top 23 key players by total patent application. Iris Ohyama, Inc., MK Seiko Co., Ltd., Aria CV, Inc. are dominant in this area. They take 43.64% of the total patent filing.
Miyagi-ken, Japan
Patent: 18
Nagano-ken, Japan
Patent: 3
Minnesota, United States
Patent: 3
Kanagawa-ken, Japan
Patent: 2
Mitsubishi Heavy Industries, Ltd.
California, United States
Patent: 1
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