MEMBERS
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Patent attorney
Suyuan Tan
- Tokyo
CastGlobal International Patent and Trademark Office
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Patent attorney
Masahiko Oshikubo
- Tokyo
CastGlobal International Patent and Trademark Office
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Judicial scrivener
Satoko Usui
- Tokyo
Judicial Scrivener Corporate CastGlobal
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Judicial scrivener
Yasuaki Sano
- Tokyo
Judicial Scrivener Corporate CastGlobal
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Attorney-at-Law・Certified Public Tax Accountant
Tatsuo Murao
- Tokyo
- Hong Kong
CastGlobalGroup Founding Partner & CEO
ATTORNEY-AT-LAW
CERTIFIED PUBLIC TAX ACCOUNTANT
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Attorney-at-Law・Securities analyst
Ichiro Ashihara
- Tokyo
Partner of Legal Profession Corporation CastGlobal
Japanese Attorney
New York State Attorney
Securities Analyst (Certified Member Analyst of The Securities Analysts Association of Japan, CMA) -

Ukraine : Ukrainian Attorney at Law
Japan : Registered foreign lawyer (Ukrainian Law)
※As of July 2025, approved by the Ministry of Justice (Bar association registration in progress)Iryna Hrybachova
- Tokyo
Legal Profession Corporation CastGlobal
Ukrainian Attorney at Law -

Consultant
Tetiana Honcharenko
- Tokyo
Legal Profession Corporation CastGlobal
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Administrative scrivener
Rika Otomo
- Tokyo
Administrative Scrivener Corporation CastGlobal
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Administrative scrivener
Yukihiro Osada
- Tokyo
Administrative Scrivener Corporation CastGlobal
