With the analysis among 111 patents, we discovered top 31 key players by total patent application. International Business Machines Corp., Intersil Corp., Sony Group Corp. are dominant in this area. They take 42.34% of the total patent filing.
International Business Machines Corp.
New York, United States
Patent: 19
California, United States
Patent: 17
Tokyo-to, Japan
Patent: 11
California, United States
Patent: 7
Shizuoka-ken, Japan
Patent: 5
Matsushita Electronics Corp.
California Microwave, Inc.
California, United States
Patent: 4
Victor Company of Japan Ltd.
Kanagawa-ken, Japan
Patent: 3
Kawai Musical Instrument Manufacturing Co., Ltd.
Shizuoka-ken, Japan
Patent: 2
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