| 06/05/1957 | Drafted in the 1957 first-year player draft by the Sapporo Bears. (Round 2, Pick 12, 24th overall pick). |
| 06/06/1957 | Released by the Sapporo Bears. |
| 06/12/1957 | Signed a 1-year minor league contract with the Rakisuta Rams organization. |
| 07/16/1957 | Named the #28 prospect in the BAN |
| 04/18/1958 | Unsuccessfully completed training to improve his pitch control at the Rakisuta Rams development complex. |
| 05/01/1958 | Named the #19 prospect in the BAN |
| 07/16/1958 | Named the #32 prospect in the BAN |
| 10/13/1958 | Named the #20 prospect in the BAN |
| 05/01/1959 | Named the #25 prospect in the BAN |
| 07/16/1959 | Named the #38 prospect in the BAN |
| 05/01/1960 | Named the #29 prospect in the BAN |
| 01/31/1961 | Detrimentally completed training to improve his defense at pitcher at the Rakisuta Rams development complex. |
| 05/01/1961 | Released by the Rakisuta Rams. |
| 05/11/1961 | Signed a 1-year contract worth a total of $3,780 with the Denki Dynamics organization. |
| 08/12/1962 | Injured (mild calf strain),day-to-day for one week. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 2. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 2. |
| 05/01/1963 | Detrimentally completed training to improve his defense at pitcher at the Denki Dynamics development complex. |
| 09/02/1963 | Pitches a 7-hit shutout against the Sapporo Bears with 8 strikeouts and 0 BB allowed! |
| 01/01/1964 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 2. |
| 03/22/1964 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Denki Dynamics development complex. |
| 06/12/1967 | Pitches a 4-hit shutout against the Kyoto Owls with 4 strikeouts and 3 BB allowed! |
| 06/06/1970 | Pitches a NO-HITTER against the Denki Dynamics with 3 strikeouts and 3 BB allowed! |
| 08/13/1970 | Pitches a 5-hit shutout against the Sapporo Bears with 2 strikeouts and 3 BB allowed! |
| 08/23/1970 | Pitches a 5-hit shutout against the Kyoto Owls with 2 strikeouts and 1 BB allowed! |
| 08/29/1971 | Pitches a 1-hit shutout against the Hosho Reliables with 9 strikeouts and 2 BB allowed! |
| 07/23/1972 | Pitches a 2-hit shutout against the Sapporo Bears with 4 strikeouts and 0 BB allowed! |
| 08/29/1974 | Pitches a 3-hit shutout against the Sapporo Bears with 2 strikeouts and 3 BB allowed! |
| LEADERBOARD APPEARANCES |
| | | | Year | GS | Rank | | 1962 | 29 | 6 | | 1963 | 29 | 5 | | | Year | W | Rank | | 1971 | 11 | 7 | | 1974 | 12 | 9 | | | Year | L | Rank | | 1962 | 13 | 5 | | 1965 | 12 | 6 | | 1966 | 13 | 4 | | 1969 | 15 | 2 | | 1971 | 12 | 4 | | 1972 | 17 | 1 | | 1973 | 11 | 7 | | 1974 | 12 | 5 | |
| | | Year | IP | Rank | | 1963 | 191.1 | 10 | | | | Year | HRA | Rank | | 1962 | 24 | 4 | | 1964 | 16 | 10 | | 1969 | 20 | 5 | | 1970 | 27 | 10 | | 1973 | 32 | 6 | | | Year | BB | Rank | | 1962 | 81 | 9 | | 1963 | 65 | 8 | | 1965 | 62 | 8 | | 1969 | 88 | 4 | | 1970 | 114 | 5 | | 1971 | 90 | 5 | | 1972 | 136 | 4 | | 1973 | 74 | 8 | | 1974 | 95 | 4 | |
| Year | K | Rank | | 1963 | 140 | 10 | | 1969 | 119 | 7 | | 1971 | 203 | 2 | | 1972 | 162 | 3 | | | Year | WP | Rank | | 1969 | 14 | 1 | | 1971 | 6 | 7 | | 1972 | 11 | 1 | | 1973 | 8 | 4 | | 1974 | 12 | 1 | | | Year | ERA | Rank | | 1971 | 3.99 | 10 | | 1974 | 3.44 | 8 | | | Year | BABIP | Rank | | 1971 | .287 | 6 | | 1973 | .254 | 8 | | 1974 | .238 | 2 | | | Year | HR/9 | Rank | | 1963 | 0.56 | 8 | |
| Year | H/9 | Rank | | 1971 | 7.59 | 4 | | 1974 | 7.40 | 1 | | | Year | K/9 | Rank | | 1963 | 6.59 | 9 | | 1969 | 5.84 | 6 | | 1971 | 9.75 | 1 | | 1972 | 7.73 | 2 | | | | | Year | CG | Rank | | 1964 | 2 | 10 | | 1966 | 3 | 8 | | 1969 | 4 | 5 | | 1971 | 5 | 5 | | 1972 | 6 | 4 | |
| Year | CGP | Rank | | 1969 | .148 | 5 | | 1970 | .321 | 10 | | 1971 | .185 | 5 | | 1972 | .207 | 5 | | | Year | SHO | Rank | | 1963 | 1 | 9 | | 1967 | 1 | 6 | | 1971 | 1 | 5 | | 1972 | 1 | 4 | | 1974 | 1 | 8 | | | Year | GB% | Rank | | 1963 | 0.54 | 4 | | 1965 | 0.55 | 2 | | 1973 | 0.58 | 1 | | 1974 | 0.54 | 10 | | | |