| 01/01/1964 | OSA scouting updated ratings: Stuff: 2; Movement: 3; Control: 1. |
| 06/05/1965 | Drafted in the 1965 first-year player draft by the Osaka Sailors. (Round 1, Pick 2, 2nd overall pick). |
| 07/16/1965 | Named the #4 prospect in the BAN |
| 03/22/1966 | Unsuccessfully completed training to improve his strength and conditioning at the Osaka Sailors development complex. |
| 05/01/1966 | Named the #2 prospect in the BAN |
| 05/01/1967 | Unsuccessfully completed training to improve his infield defense at the Osaka Sailors development complex. |
| 06/22/1967 | Released by the Osaka Sailors. |
| 06/28/1967 | Signed a minor league contract ($240 bonus) with the Kyoto Owls organization. |
| 06/29/1967 | Released by the Kyoto Owls. |
| 07/05/1967 | Signed a minor league contract ($240 bonus) with the Kyoto Owls organization. |
| 07/07/1967 | Released by the Kyoto Owls. |
| 07/12/1967 | Signed a minor league contract ($240 bonus) with the Kobe Bulls organization. |
| 03/21/1968 | Outstandingly completed training to improve his strength and conditioning at the Kobe Bulls development complex. |
| 06/06/1969 | Released by the Kobe Bulls. |
| 06/11/1969 | Signed a 1-year contract worth a total of $36,800 with the Yokohama Kingfishers organization. |
| 06/22/1969 | Injured (strained hamstring),out for 7 weeks. |
| 05/05/1970 | Pitches a NO-HITTER against the Kyoto Owls with 4 strikeouts and 8 BB allowed! |
| 05/10/1970 | Pitches a NO-HITTER against the Denki Dynamics with 3 strikeouts and 2 BB allowed! |
| 05/13/1970 | Pitches a NO-HITTER against the Rakisuta Rams with 6 strikeouts and 5 BB allowed! |
| 05/17/1970 | Pitches a NO-HITTER against the Yokohama Kingfishers with 8 strikeouts and 5 BB allowed! |
| 05/18/1970 | Wins the BAN EL Player of the Week Award. |
| 05/21/1970 | Pitches a NO-HITTER against the Hosho Reliables with 5 strikeouts and 1 BB allowed! |
| 05/29/1970 | Pitches a NO-HITTER against the Rakisuta Rams with 9 strikeouts and 1 BB allowed! |
| 06/01/1970 | Wins the BAN EL Pitcher of the Month Award. |
| 06/02/1970 | Pitches a NO-HITTER against the Sapporo Bears with 3 strikeouts and 4 BB allowed! |
| 06/06/1970 | Pitches a 1-hit shutout against the Hosho Reliables with 2 strikeouts and 0 BB allowed! |
| 06/08/1970 | Wins the BAN EL Player of the Week Award. |
| 07/25/1970 | Injured (gout),out for 4 days. |
| 07/31/1970 | Was selected to the 1970 Baseball Association of Nippon All-Star Game. |
| 08/03/1970 | Wins the BAN EL Player of the Week Award. |
| 08/23/1970 | Pitches a 7-hit shutout against the Rakisuta Rams with 5 strikeouts and 3 BB allowed! |
| 07/31/1971 | Was selected to the 1971 Baseball Association of Nippon All-Star Game. |
| 05/01/1972 | Unsuccessfully completed training to improve his secondary pitch at the Yokohama Kingfishers development complex. |
| 06/01/1973 | Pitches a 7-hit shutout against the Sapporo Bears with 7 strikeouts and 1 BB allowed! |
| 08/10/1973 | Pitches a 7-hit shutout against the Sapporo Bears with 8 strikeouts and 0 BB allowed! |
| 08/19/1974 | Pitches a 5-hit shutout against the Rakisuta Rams with 8 strikeouts and 2 BB allowed! |
| 09/01/1974 | Wins the BAN EL Pitcher of the Month Award. |
| LEADERBOARD APPEARANCES |
| | | Year | G | Rank | | 1966 | 47 | 9 | | 1970 | 43 | 8 | | | Year | GS | Rank | | 1970 | 42 | 1 | | 1971 | 31 | 1 | | 1972 | 30 | 4 | | 1973 | 30 | 6 | | 1974 | 31 | 1 | | | Year | W | Rank | | 1970 | 17 | 2 | | 1974 | 13 | 5 | | | Year | L | Rank | | 1970 | 15 | 5 | | 1971 | 12 | 4 | | 1972 | 12 | 7 | | 1973 | 11 | 7 | | 1974 | 11 | 9 | |
| Year | Win. % | Rank | | 1970 | .531 | 10 | | 1974 | .542 | 9 | | | Year | IP | Rank | | 1970 | 325.2 | 1 | | 1971 | 225.1 | 2 | | 1972 | 215.2 | 4 | | 1973 | 211.2 | 5 | | 1974 | 234.1 | 1 | | | Year | BF | Rank | | 1970 | 1345 | 1 | | 1971 | 965 | 2 | | 1972 | 933 | 3 | | 1973 | 915 | 5 | | 1974 | 961 | 2 | | | | Year | BB | Rank | | 1970 | 135 | 2 | | 1972 | 125 | 6 | | 1973 | 85 | 5 | |
| Year | K | Rank | | 1970 | 212 | 1 | | 1971 | 181 | 9 | | 1972 | 146 | 8 | | 1973 | 131 | 6 | | 1974 | 141 | 3 | | | Year | WP | Rank | | 1970 | 6 | 6 | | 1971 | 9 | 3 | | | Year | ERA | Rank | | 1971 | 3.59 | 6 | | 1973 | 3.49 | 6 | | 1974 | 3.23 | 6 | | | Year | WHIP | Rank | | 1971 | 1.27 | 10 | | 1974 | 1.15 | 3 | | | Year | K/BB | Rank | | 1971 | 2.35 | 10 | | 1974 | 2.01 | 7 | |
| Year | RA/9 | Rank | | 1971 | 11.86 | 10 | | 1974 | 10.79 | 3 | | | Year | HR/9 | Rank | | 1970 | 0.75 | 2 | | 1971 | 0.76 | 4 | | 1972 | 0.92 | 7 | | 1973 | 0.89 | 7 | | 1974 | 0.77 | 5 | | | Year | H/9 | Rank | | 1970 | 6.77 | 9 | | 1972 | 7.34 | 8 | | 1974 | 7.68 | 4 | | | Year | BB/9 | Rank | | 1971 | 3.08 | 8 | | 1974 | 2.69 | 5 | | | Year | K/9 | Rank | | 1973 | 5.57 | 10 | |
| | | | Year | QS | Rank | | 1970 | 27 | 2 | | 1971 | 18 | 4 | | 1973 | 19 | 5 | | 1974 | 19 | 4 | | | Year | QSP | Rank | | 1970 | .643 | 10 | | 1971 | .581 | 6 | | 1973 | .633 | 6 | | 1974 | .613 | 7 | | | Year | CG | Rank | | 1969 | 3 | 7 | | 1970 | 18 | 4 | | 1971 | 5 | 5 | | 1972 | 6 | 4 | | 1973 | 7 | 5 | | 1974 | 6 | 8 | |
| Year | CGP | Rank | | 1970 | .429 | 6 | | 1971 | .161 | 6 | | 1972 | .200 | 7 | | 1973 | .233 | 7 | | 1974 | .194 | 10 | | | Year | SHO | Rank | | 1970 | 10 | 1 | | 1973 | 2 | 3 | | 1974 | 1 | 8 | | | Year | GB% | Rank | | 1970 | 0.54 | 10 | | 1971 | 0.57 | 5 | | 1972 | 0.56 | 9 | | | Year | WAR | Rank | | 1970 | 6.3 | 3 | | 1971 | 5.3 | 4 | | 1972 | 3.6 | 7 | | 1973 | 3.9 | 6 | | 1974 | 5.9 | 3 | | |