Who are some of the great Japanese boxers? Its odd to me that a nation that has excelled in so many martial arts like Judo and Kickboxing haven't really produced many memorable boxers.

I know Takeshi Fuji and Shinji Takehara were both briefly world champions in their respective times, and both were known as real good punchers.

I know Royal Kobayashi and Hiroshi Kobayashi, but only as the guys who got destroyed by Gomez and Duran respectively.

So who are the greatest boxers produced by Japan? Who is #1?