J.D. Power helps companies across industries recognize excellence and drive results throughout their organization—all by listening to the most important voice, the Voice of the Customer. 

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J.D. Power provides actionable market intelligence to technology and telecommunication product and service providers serving customers. Our research solutions help clients improve customer satisfaction—ultimately leading to greater loyalty and profitability.

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Benchmark Studies

An overview of the customer satisfaction surveys conducted by JD Power and an introduction of the No. 1 brand with the highest level of overall satisfaction from each survey.

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Japan Mobile Phone Service Satisfaction Study


Japan Smartphone Customer Satisfaction Study

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Japan Wireline Broadband Internet Service Satisfaction Study

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Japan Mobile Router Service/Wireless Home Router Service Satisfaction Study

Meet Our Team

Tatsuro Nomoto
Senior Director, Telecom & Technology Services Industries, Global Business Intelligence Division
Tatsuro's Bio