Atty. Yohei Koyama

Atty. Yohei Koyama

Yohei Koyama is a Telecommunications Law attorney in Tokyo, Japan. Read Yohei Koyama's profile to learn more about them and discover their Best Lawyers rankings.

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About Yohei Koyama at a glance

Yohei Koyama is an attorney, practicing at Atsumi & Sakai. Serands clients in Tokyo and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

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Yohei Koyama's law practice is located in Tokyo. The firm is Atsumi & Sakai. You can contact the office directly through this profile page.
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