With the analysis among 96 patents, we discovered top 27 key players by total patent application. Matsushita Electronics Corp., NEC Corp., Nippon Telegraph & Telephone Corp. are dominant in this area. They take 38.54% of the total patent filing.
Matsushita Electronics Corp.
Osaka-fu, Japan
Patent: 15
Tokyo-to, Japan
Patent: 13
Nippon Telegraph & Telephone Corp.
Telefonaktiebolaget LM Ericsson
Mitsubishi Electric Corp.
Toyama-ken, Japan
Patent: 4
Matsushita Electric Works Co. Ltd.
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