No amateur resultsProfessional record| Date | Opponent | Place | Result | | 1970 | | + Dec. 26 | Kenji Yoshii | Tokyo, Japan | KO 1 | | 1971 | | + Feb. 12 | Kenetsuro Kikuchi | Tokyo, Japan | W 4 | | + Mar. 20 | Masamitsu Sugawara | Tokyo, Japan | W 4 | | + May 13 | Toshiaki Nishio | Tokyo, Japan | KO 1 | | + July 30 | Yoshio Tabata | Tokyo, Japan | W 4 | | - Aug. 19 | Masakuni Kawakami | Tokyo, Japan | L 4 | | + Oct. 14 | Fujio Matsuoka | Tokyo, Japan | KO 4 | | + Nov. 18 | Masao Ohara | Tokyo, Japan | KO 3 | | + Dec. 27 | Masamitsu Katayama | Koriyama, Japan | KO 2 | | 1972 | | + Mar. 23 | Moriyuki Sasaki | Tokyo, Japan | KO 1 | | + Apr. 14 | Masakuni Kawakami | Sendai, Japan | W 6 | | + June 29 | Seiichi Kobayashi | Tokyo, Japan | KO 1 | | + Aug. 5 | Yoichiro Hamada | Utsunomiya, Japan | W 8 | | + Sept. 15 | Matsushi Yoshida | Tokyo, Japan | W 6 | | 1973 | | + Jan. 18 | Jiro Shimizu | Tokyo, Japan | KO 4 | | + Apr. 5 | Kazuaki Koyanagi | Tokyo, Japan | KO 4 | | + May 6 | Tatsuo Shimizu | Utsunomiya, Japan | KO 4 | | + July 2 | Go Mifune | Tokyo, Japan | W 10 | | + Sept. 7 | Dong Ki Cho | Tokyo, Japan | W 10 | | + Nov. 23 | Issei Sugamoto | Tokyo, Japan | W 10 | | 1974 | | + Mar. 24 | Kenji Kato
| Tokyo, Japan | W 10 | | - May 19 | Betulio Gonzalez | Koriyama, Japan | L 10 | | + Oct. 1 | Betulio Gonzalez | Tokyo, Japan | W 15 | | WBC Flyweight Title | | 1975 | | - Jan. 8 | Miguel Canto | Sendai, Japan | L 15 | | WBC Flyweight Title | | + Apr. 25 | Peter Noble | Tokyo, Japan | KO 9 | | + Aug. 22 | Kazuo Aikawa | Tokyo, Japan | KO 5 | | + Nov. 7 | Yuji Matsunaga | Tokyo, Japan | KO 1 | | 1976 | | + Feb. 13 | Dommy Marolena | Tokyo, Japan | KO 10 | | - Apr. 21 | Alfonso Lopez | Tokyo, Japan | L 15 | | WBA Flyweight Title | | + July 18 | Dong-Rae Lim | Koriyama, Japan | KO 4 | | + Sept. 7 | Chun Ha Park | Tokyo, Japan | KO 3 | | - Dec. 14 | Kimio Furesawa | Tokyo, Japan | KO by 8 | | 1977 | | + Feb. 15 | Sung-Jun Kim | Tokyo, Japan | W 10 | | + Aug. 29 | Puma Koya | Tokyo, Japan | TKO 5 | | 1978 | | - Jan. 4 | Miguel Canto | Koriyama, Japan | L 15 | | WBC Flyweight Title | | - Apr. 18 | Miguel Canto | Tokyo, Japan | L 15 | | WBC Flyweight Title | | + Sept. 25 | Puma Koya | Shizuoka, Japan | W 10 | | + Nov. 23 | Shinji Suka | Tokyo, Japan | KO 3 | | 1979 | | = Jan. 29 | Betulio Gonzalez | Hamamatsu, Japan | Draw 15 | | WBA Flyweight Title | | - July 6 | Betulio Gonzalez | Utsunomiya, Japan | KO by 12 | | WBA Flyweight Title | | + Dec. 17 | Chikara Igarashi | Tokyo, Japan | KO 8 | | 1980 | | + May 18 | Chan-hee Park | Seoul, South Korea | KO 9 | | WBC Flyweight Title | | + July 28 | Sung-Jun Kim | Tokyo, Japan | W 15 | | WBC Flyweight Title | | + Oct. 18 | Chan-hee Park | Sendai, Japan | W 15 | | WBC Flyweight Title | | 1981 | | + Feb. 3 | Chan-hee Park | Tokyo, Japan | W 15 | | WBC Flyweight Title | | - May 12 | Antonio Avelar | Mito, Japan | KO by 7 | | WBC Flyweight Title | | 1982 | | + Mar. 24 | Chan-Young Park | Tokyo, Japan | W 10 | | + June 24 | Jackal Maruyama | Tokyo, Japan | W 10 | | - Nov. 11 | Jiro Watanabe | Hamamatsu, Japan | TKO by 12 | | WBA Super-Flyweight Title |
Summary
Total bouts: 49, Won: 38 (20 inside the limit), Lost: 10 (4 inside the limit), Draw: 1, NC: 0
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