With the analysis among 76 patents, we discovered top 22 key players by total patent application. Nisshinbo Micro Devices, Inc., Kyocera Corp., Hughes Aircraft Co. are dominant in this area. They take 44.74% of the total patent filing.
Tokyo-to, Japan
Patent: 17
Kyoto-fu, Japan
Patent: 10
California, United States
Patent: 7
Toyama-ken, Japan
Patent: 2
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