| 06/05/1965 | Drafted in the 1965 first-year player draft by the Denki Dynamics. (Round 2, Pick 7, 19th overall pick). |
| 07/16/1965 | Named the #45 prospect in the BAN |
| 03/22/1966 | Unsuccessfully completed training to increase his velocity at the Denki Dynamics development complex. |
| 05/01/1966 | Named the #41 prospect in the BAN |
| 07/16/1966 | Named the #46 prospect in the BAN |
| 05/01/1967 | Named the #23 prospect in the BAN |
| 05/01/1967 | Successfully completed training to work on his bunting at the Denki Dynamics development complex. |
| 07/16/1967 | Named the #32 prospect in the BAN |
| 05/01/1968 | Named the #28 prospect in the BAN |
| 06/15/1968 | Pitches a 7-hit shutout against the Hosho Reliables with 3 strikeouts and 0 BB allowed! |
| 03/21/1969 | Successfully completed training to make one of his poorer pitches more usable at the Denki Dynamics development complex. |
| 04/10/1969 | Successfully completed training to work on his bunting at the Denki Dynamics development complex. |
| 09/22/1969 | Pitches a 9-hit shutout against the Kyoto Owls with 0 strikeouts and 0 BB allowed! |
| 05/01/1970 | Successfully completed training to increase his endurance on the mound at the Denki Dynamics development complex. |
| 05/02/1970 | Pitches a NO-HITTER against the Denki Dynamics with 7 strikeouts and 2 BB allowed! |
| 05/10/1970 | Pitches a 1-hit shutout against the Yokohama Kingfishers with 4 strikeouts and 2 BB allowed! |
| 06/07/1970 | Injured (neck stiffness),day-to-day for 3 days. |
| 07/16/1970 | Pitches a 2-hit shutout against the Kyoto Owls with 9 strikeouts and 3 BB allowed! |
| 07/31/1970 | Was selected to the 1970 Baseball Association of Nippon All-Star Game. |
| 10/20/1970 | Finished 2nd in 1970 BAN EL Noburu Kagawa Award voting. |
| 12/11/1970 | Successfully completed training to improve his infield defense at the Denki Dynamics development complex. |
| 07/17/1971 | Pitches a 6-hit shutout against the Yokohama Kingfishers with 11 strikeouts and 1 BB allowed! |
| 07/31/1971 | Was selected to the 1971 Baseball Association of Nippon All-Star Game. |
| 10/02/1971 | Strikes out 16 against the Rakisuta Rams. |
| 10/19/1971 | Finished 2nd in 1971 BAN EL Noburu Kagawa Award voting. |
| 01/05/1972 | Successfully completed training to work on his bunting at the Denki Dynamics development complex. |
| 01/25/1972 | Unsuccessfully completed training to improve his infield defense at the Denki Dynamics development complex. |
| 07/31/1972 | Was selected to the 1972 Baseball Association of Nippon All-Star Game. |
| 08/23/1972 | Pitches a 2-hit shutout against the Yokohama Kingfishers with 3 strikeouts and 2 BB allowed! |
| 09/07/1972 | Pitches a 3-hit shutout against the Yokohama Kingfishers with 5 strikeouts and 3 BB allowed! |
| 10/19/1972 | Wins the 1972 BAN EL Noburu Kagawa Award. |
| 05/01/1973 | Successfully completed training to improve his secondary pitch at the Denki Dynamics development complex. |
| 06/16/1973 | Pitches a 5-hit shutout against the Sapporo Bears with 9 strikeouts and 1 BB allowed! |
| 07/31/1973 | Was selected to the 1973 Baseball Association of Nippon All-Star Game. |
| 09/06/1973 | Pitches a 5-hit shutout against the Sapporo Bears with 4 strikeouts and 4 BB allowed! |
| 01/01/1974 | Successfully completed training to improve his infield defense at the Denki Dynamics development complex. |
| 01/21/1974 | Detrimentally completed training to work on his bunting at the Denki Dynamics development complex. |
| 07/10/1974 | Pitches a 6-hit shutout against the Yokohama Kingfishers with 6 strikeouts and 2 BB allowed! |
| 07/31/1974 | Was selected to the 1974 Baseball Association of Nippon All-Star Game. |
| LEADERBOARD APPEARANCES |
| | | Year | GS | Rank | | 1969 | 29 | 7 | | 1970 | 39 | 2 | | 1971 | 29 | 10 | | 1972 | 30 | 4 | | 1973 | 31 | 2 | | 1974 | 30 | 6 | | | Year | W | Rank | | 1970 | 19 | 1 | | 1971 | 11 | 7 | | 1972 | 13 | 5 | | 1973 | 12 | 9 | | | Year | L | Rank | | 1969 | 11 | 7 | | 1970 | 16 | 4 | | 1974 | 13 | 4 | | | Year | Win. % | Rank | | 1970 | .543 | 9 | | 1971 | .611 | 4 | | 1973 | .571 | 8 | |
| Year | IP | Rank | | 1969 | 188.2 | 10 | | 1970 | 318.1 | 2 | | 1971 | 207.0 | 6 | | 1972 | 220.0 | 3 | | 1973 | 221.0 | 4 | | | Year | BF | Rank | | 1969 | 836 | 7 | | 1970 | 1264 | 2 | | 1971 | 861 | 6 | | 1972 | 911 | 5 | | 1973 | 920 | 3 | | | | Year | BB | Rank | | 1969 | 88 | 4 | | 1970 | 103 | 9 | | | Year | K | Rank | | 1970 | 205 | 5 | | 1971 | 201 | 4 | | 1972 | 161 | 6 | | 1973 | 152 | 2 | | 1974 | 126 | 9 | |
| Year | WP | Rank | | 1972 | 7 | 6 | | 1973 | 7 | 6 | | | Year | ERA | Rank | | 1970 | 2.52 | 3 | | 1971 | 2.96 | 1 | | 1972 | 3.11 | 2 | | 1973 | 3.46 | 5 | | 1974 | 2.86 | 1 | | | Year | BABIP | Rank | | 1968 | .236 | 8 | | 1970 | .228 | 10 | | | Year | WHIP | Rank | | 1968 | 1.16 | 10 | | 1970 | 1.06 | 5 | | 1971 | 1.17 | 1 | | 1972 | 1.20 | 2 | | 1973 | 1.20 | 6 | | 1974 | 1.23 | 7 | | | Year | K/BB | Rank | | 1970 | 1.99 | 9 | | 1971 | 3.72 | 3 | | 1972 | 1.73 | 4 | | 1973 | 2.49 | 4 | | 1974 | 1.97 | 9 | |
| Year | RA/9 | Rank | | 1970 | 9.75 | 5 | | 1971 | 10.96 | 1 | | 1972 | 11.17 | 2 | | 1973 | 11.04 | 5 | | 1974 | 11.80 | 9 | | | Year | HR/9 | Rank | | 1969 | 0.29 | 1 | | 1970 | 0.85 | 7 | | 1971 | 0.61 | 3 | | 1972 | 0.78 | 4 | | 1973 | 0.45 | 2 | | 1974 | 0.75 | 3 | | | Year | H/9 | Rank | | 1970 | 6.62 | 8 | | 1971 | 8.17 | 7 | | 1972 | 7.04 | 6 | | | Year | BB/9 | Rank | | 1970 | 2.91 | 7 | | 1971 | 2.35 | 3 | | 1972 | 3.80 | 7 | | 1973 | 2.48 | 6 | | 1974 | 2.82 | 7 | | | Year | K/9 | Rank | | 1971 | 8.74 | 5 | | 1972 | 6.59 | 8 | | 1973 | 6.19 | 1 | | 1974 | 5.55 | 9 | |
| Year | QS | Rank | | 1970 | 30 | 1 | | 1971 | 23 | 1 | | 1972 | 19 | 3 | | 1973 | 21 | 3 | | 1974 | 22 | 2 | | | Year | QSP | Rank | | 1970 | .769 | 3 | | 1971 | .793 | 1 | | 1972 | .633 | 6 | | 1973 | .677 | 4 | | 1974 | .733 | 2 | | | Year | CG | Rank | | 1970 | 24 | 1 | | 1971 | 4 | 7 | | 1972 | 11 | 2 | | 1973 | 10 | 4 | | | Year | CGP | Rank | | 1970 | .615 | 2 | | 1971 | .138 | 7 | | 1972 | .367 | 2 | | 1973 | .323 | 4 | | | Year | SHO | Rank | | 1968 | 1 | 9 | | 1969 | 1 | 9 | | 1970 | 4 | 8 | | 1971 | 1 | 5 | | 1972 | 2 | 2 | | 1973 | 2 | 3 | | 1974 | 1 | 8 | |
| Year | GB% | Rank | | 1971 | 0.56 | 6 | | 1972 | 0.56 | 6 | | 1973 | 0.55 | 5 | | 1974 | 0.57 | 4 | | | Year | WAR | Rank | | 1969 | 3.7 | 9 | | 1970 | 6.1 | 4 | | 1971 | 6.8 | 1 | | 1972 | 5.8 | 1 | | 1973 | 7.8 | 2 | | 1974 | 4.6 | 4 | | | | |