| 01/01/1964 | OSA scouting updated ratings: Stuff: 2; Movement: 2; Control: 1. |
| 06/05/1966 | Drafted in the 1966 first-year player draft by the Denki Dynamics. (Round 1, Pick 1, 1st overall pick). |
| 03/22/1967 | Successfully completed training to improve his strength and conditioning at the Denki Dynamics development complex. |
| 05/01/1967 | Named the #2 prospect in the BAN |
| 06/01/1967 | Wins the BAN EL Rookie of the Month Award. |
| 07/01/1967 | Wins the BAN EL Rookie of the Month Award. |
| 08/01/1967 | Wins the BAN EL Rookie of the Month Award. |
| 03/21/1968 | Unsuccessfully completed training to improve his secondary pitch at the Denki Dynamics development complex. |
| 05/01/1968 | Unsuccessfully completed training to improve his infield defense at the Denki Dynamics development complex. |
| 05/22/1968 | Pitches a 3-hit shutout against the Yokohama Kingfishers with 2 strikeouts and 3 BB allowed! |
| 06/01/1968 | Pitches a 5-hit shutout against the Rakisuta Rams with 3 strikeouts and 0 BB allowed! |
| 07/09/1968 | Pitches a 6-hit shutout against the Sapporo Bears with 3 strikeouts and 3 BB allowed! |
| 09/15/1968 | Pitches a 5-hit shutout against the Sapporo Bears with 7 strikeouts and 2 BB allowed! |
| 10/01/1968 | Wins the BAN EL Pitcher of the Month Award. |
| 05/22/1969 | Pitches a 4-hit shutout against the Sapporo Bears with 4 strikeouts and 0 BB allowed! |
| 06/30/1969 | Pitches a 3-hit shutout against the Kyoto Owls with 10 strikeouts and 0 BB allowed! |
| 09/04/1969 | Pitches a 3-hit shutout against the Yokohama Kingfishers with 4 strikeouts and 0 BB allowed! |
| 05/13/1970 | Pitches a NO-HITTER against the Kyoto Owls with 4 strikeouts and 1 BB allowed! |
| 05/21/1970 | Injured (mild abdominal strain),day-to-day for 1 day. |
| 05/25/1970 | Pitches a NO-HITTER against the Yokohama Kingfishers with 7 strikeouts and 6 BB allowed! |
| 06/05/1970 | Pitches a NO-HITTER against the Sapporo Bears with 6 strikeouts and 1 BB allowed! |
| 07/08/1970 | Pitches a 4-hit shutout against the Sapporo Bears with 3 strikeouts and 1 BB allowed! |
| 07/10/1970 | Pitches a 1-hit shutout against the Hosho Reliables with 6 strikeouts and 2 BB allowed! |
| 07/13/1970 | Wins the BAN EL Player of the Week Award. |
| 08/01/1970 | Wins the BAN EL Pitcher of the Month Award. |
| 05/01/1971 | Unsuccessfully completed training to increase his endurance on the mound at the Denki Dynamics development complex. |
| 08/19/1972 | Injured (mild abdominal strain),day-to-day for one week. |
| 09/24/1972 | Pitches a NO-HITTER against the Yokohama Kingfishers with 5 strikeouts and 5 BB allowed! |
| 05/01/1973 | Successfully completed training to improve his secondary pitch at the Denki Dynamics development complex. |
| 06/01/1973 | Wins the BAN EL Pitcher of the Month Award. |
| 07/29/1973 | Pitches a 6-hit shutout against the Kyoto Owls with 3 strikeouts and 0 BB allowed! |
| 08/25/1973 | Pitches a 2-hit shutout against the Rakisuta Rams with 1 strikeouts and 1 BB allowed! |
| 10/15/1973 | Was traded by the Denki Dynamics to the Nagasaki Stars in exchange for RP Shinichi Kanehara. |
| 06/29/1974 | Pitches a 3-hit shutout against the Osaka Sailors with 3 strikeouts and 1 BB allowed! |
| LEADERBOARD APPEARANCES |
| Year | SH | Rank | | 1973 | 13 | 7 | | 1974 | 9 | 9 | | | | Year | GS | Rank | | 1967 | 29 | 9 | | 1968 | 30 | 4 | | 1969 | 29 | 7 | | 1970 | 39 | 2 | | 1971 | 30 | 4 | | 1973 | 30 | 6 | | 1974 | 29 | 10 | | | Year | W | Rank | | 1968 | 13 | 4 | | 1970 | 17 | 2 | | 1971 | 12 | 4 | | 1972 | 12 | 9 | | 1973 | 14 | 4 | | | Year | L | Rank | | 1969 | 11 | 7 | | 1970 | 13 | 6 | | 1974 | 15 | 4 | |
| Year | Win. % | Rank | | 1968 | .565 | 6 | | 1970 | .567 | 6 | | 1971 | .600 | 5 | | 1973 | .583 | 7 | | | Year | IP | Rank | | 1967 | 207.1 | 7 | | 1968 | 209.0 | 7 | | 1969 | 199.0 | 7 | | 1970 | 307.2 | 3 | | 1971 | 189.1 | 10 | | 1972 | 201.0 | 9 | | 1973 | 208.1 | 7 | | | Year | BF | Rank | | 1967 | 859 | 4 | | 1968 | 902 | 3 | | 1969 | 834 | 8 | | 1970 | 1250 | 3 | | 1971 | 830 | 9 | | 1973 | 877 | 8 | | | Year | HRA | Rank | | 1970 | 28 | 8 | | 1971 | 26 | 9 | | 1973 | 29 | 10 | | 1974 | 29 | 7 | | | Year | BB | Rank | | 1967 | 71 | 5 | | 1968 | 81 | 3 | | 1970 | 113 | 6 | |
| Year | K | Rank | | 1970 | 203 | 6 | | 1973 | 133 | 5 | | | Year | WP | Rank | | 1968 | 9 | 3 | | 1970 | 10 | 2 | | 1973 | 13 | 1 | | 1974 | 7 | 7 | | | Year | ERA | Rank | | 1970 | 2.81 | 5 | | | Year | BABIP | Rank | | 1967 | .236 | 8 | | 1969 | .240 | 8 | | 1974 | .235 | 7 | | | Year | WHIP | Rank | | 1969 | 1.16 | 10 | | 1974 | 1.11 | 10 | |
| Year | K/BB | Rank | | 1971 | 2.39 | 9 | | 1972 | 1.67 | 6 | | 1973 | 2.51 | 3 | | 1974 | 2.13 | 10 | | | Year | RA/9 | Rank | | 1967 | 10.77 | 10 | | 1969 | 10.58 | 10 | | 1973 | 11.28 | 9 | | 1974 | 10.22 | 9 | | | Year | HR/9 | Rank | | 1967 | 0.65 | 6 | | 1968 | 0.30 | 2 | | 1969 | 0.54 | 7 | | 1970 | 0.82 | 5 | | 1972 | 0.90 | 5 | | | Year | H/9 | Rank | | 1967 | 7.51 | 8 | | 1974 | 7.74 | 10 | | | Year | BB/9 | Rank | | 1969 | 2.94 | 10 | | 1972 | 3.67 | 6 | | 1973 | 2.29 | 4 | | 1974 | 2.27 | 7 | |
| Year | K/9 | Rank | | 1973 | 5.75 | 5 | | | Year | QS | Rank | | 1967 | 22 | 3 | | 1969 | 18 | 10 | | 1970 | 27 | 2 | | 1971 | 17 | 7 | | 1972 | 17 | 8 | | 1973 | 17 | 9 | | | Year | QSP | Rank | | 1967 | .759 | 3 | | 1970 | .692 | 7 | | 1971 | .567 | 10 | | 1972 | .586 | 9 | | | Year | CG | Rank | | 1967 | 7 | 1 | | 1968 | 6 | 4 | | 1969 | 5 | 3 | | 1970 | 15 | 6 | | 1972 | 6 | 4 | | 1973 | 6 | 7 | | | Year | CGP | Rank | | 1967 | .241 | 1 | | 1968 | .200 | 4 | | 1969 | .172 | 4 | | 1970 | .385 | 9 | | 1972 | .207 | 5 | | 1973 | .200 | 8 | |
| Year | SHO | Rank | | 1968 | 4 | 2 | | 1969 | 3 | 1 | | 1970 | 5 | 4 | | 1972 | 1 | 4 | | 1973 | 2 | 3 | | 1974 | 1 | 9 | | | Year | GB% | Rank | | 1968 | 0.55 | 8 | | | Year | WAR | Rank | | 1968 | 4.7 | 5 | | 1969 | 3.7 | 10 | | 1970 | 5.7 | 5 | | 1972 | 4.8 | 6 | | 1973 | 3.6 | 8 | | | |