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- First Name: Ryuichiro
- Family Name: Kato
- Native name: 花ノ本寿
- Also Known as: Katou Ryuuichirou, はなのもと ことぶき, かとう りゅういちろう, 加藤龍一郎
- Nationality: Japanese
- Gender: Male
- Born: October 23, 1939
- Died: November 4, 2023
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