| 06/05/1962 | Drafted in the 1962 first-year player draft by the Denki Dynamics. (Round 1, Pick 2, 2nd overall pick). |
| 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 | Named the #2 prospect in the BAN |
| 05/01/1963 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Denki Dynamics development complex. |
| 07/20/1963 | Injured (ruptured tendon (finger)),out for 4 months. |
| 01/01/1964 | OSA scouting updated ratings: Stuff: 3; Movement: 3; Control: 2. |
| 05/24/1964 | Pitches a 2-hit shutout against the Hosho Reliables with 4 strikeouts and 2 BB allowed! |
| 07/15/1964 | Pitches a 3-hit shutout against the Yokohama Kingfishers with 4 strikeouts and 1 BB allowed! |
| 09/01/1964 | Pitches a 3-hit shutout against the Hosho Reliables with 7 strikeouts and 1 BB allowed! |
| 03/22/1965 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Denki Dynamics development complex. |
| 07/31/1965 | Was selected to the 1965 Baseball Association of Nippon All-Star Game. |
| 03/22/1966 | Unsuccessfully completed training to make one of his poorer pitches more usable at the Denki Dynamics development complex. |
| 06/12/1966 | Pitches a 4-hit shutout against the Hosho Reliables with 5 strikeouts and 0 BB allowed! |
| 06/13/1966 | Wins the BAN EL Player of the Week Award. |
| 03/21/1968 | Outstandingly completed training to improve his secondary pitch at the Denki Dynamics development complex. |
| 06/03/1968 | Pitches a 1-hit shutout against the Rakisuta Rams with 3 strikeouts and 2 BB allowed! |
| 07/31/1968 | Was selected to the 1968 Baseball Association of Nippon All-Star Game. |
| 06/06/1969 | Released by the Denki Dynamics. |
| 06/11/1969 | Signed a 1-year contract worth a total of $41,000 with the Yokohama Kingfishers organization. |
| 05/08/1970 | Pitches a 1-hit shutout against the Denki Dynamics with 4 strikeouts and 4 BB allowed! |
| 05/12/1970 | Pitches a NO-HITTER against the Rakisuta Rams with 7 strikeouts and 2 BB allowed! |
| 05/20/1970 | Pitches a NO-HITTER against the Yokohama Kingfishers with 8 strikeouts and 4 BB allowed! |
| 05/31/1970 | Pitches a NO-HITTER against the Yokohama Kingfishers with 6 strikeouts and 5 BB allowed! |
| 01/10/1972 | Injured (knee contusion),day-to-day for 5 days. |
| 07/04/1972 | Pitches a 2-hit shutout against the Sapporo Bears with 6 strikeouts and 1 BB allowed! |
| 06/22/1973 | Injured (back tightness),day-to-day for one week. |
| 08/16/1973 | Pitches a 3-hit shutout against the Denki Dynamics with 2 strikeouts and 5 BB allowed! |
| LEADERBOARD APPEARANCES |
| Year | GS | Rank | | 1964 | 29 | 8 | | 1966 | 29 | 8 | | 1967 | 29 | 9 | | 1968 | 29 | 9 | | 1971 | 29 | 10 | | | Year | W | Rank | | 1964 | 13 | 7 | | 1965 | 11 | 8 | | 1966 | 10 | 10 | | | Year | L | Rank | | 1964 | 12 | 3 | | 1967 | 16 | 1 | | 1968 | 11 | 8 | | 1971 | 13 | 1 | | 1973 | 19 | 1 | | 1974 | 17 | 1 | | | Year | IP | Rank | | 1964 | 205.0 | 5 | | 1965 | 202.0 | 7 | | 1966 | 199.2 | 8 | | 1970 | 246.0 | 10 | | | Year | BF | Rank | | 1964 | 876 | 3 | | 1965 | 808 | 8 | | 1966 | 827 | 8 | | 1970 | 989 | 10 | |
| Year | HRA | Rank | | 1964 | 22 | 1 | | 1967 | 18 | 7 | | 1970 | 32 | 5 | | 1972 | 28 | 10 | | 1973 | 37 | 1 | | 1974 | 30 | 5 | | | Year | BB | Rank | | 1964 | 61 | 9 | | 1966 | 63 | 10 | | 1967 | 69 | 8 | | 1968 | 75 | 4 | | 1970 | 109 | 7 | | 1971 | 88 | 6 | | 1973 | 73 | 9 | | | Year | K | Rank | | 1965 | 132 | 7 | | 1968 | 128 | 6 | | 1970 | 210 | 2 | | | Year | WP | Rank | | 1967 | 8 | 6 | | 1968 | 7 | 7 | | 1971 | 8 | 4 | | | Year | ERA | Rank | | 1965 | 2.41 | 5 | | 1970 | 3.04 | 9 | |
| Year | BABIP | Rank | | 1965 | .232 | 3 | | 1970 | .205 | 4 | | | Year | WHIP | Rank | | 1965 | 1.02 | 2 | | 1970 | 1.09 | 9 | | | Year | K/BB | Rank | | 1970 | 1.93 | 10 | | | Year | RA/9 | Rank | | 1965 | 9.40 | 2 | | 1970 | 10.02 | 10 | | | Year | HR/9 | Rank | | 1968 | 0.59 | 10 | | 1971 | 1.07 | 9 | |
| Year | H/9 | Rank | | 1965 | 6.68 | 1 | | 1970 | 5.78 | 4 | | | Year | K/9 | Rank | | 1965 | 5.88 | 7 | | 1967 | 5.59 | 9 | | 1968 | 6.30 | 4 | | 1970 | 7.68 | 1 | | 1974 | 5.94 | 7 | | | Year | QS | Rank | | 1965 | 22 | 5 | | 1966 | 23 | 5 | | 1970 | 22 | 10 | | | Year | QSP | Rank | | 1965 | .759 | 4 | | 1966 | .793 | 6 | | 1970 | .647 | 9 | | | Year | CG | Rank | | 1964 | 8 | 1 | | 1965 | 2 | 9 | | 1968 | 5 | 5 | |
| Year | CGP | Rank | | 1964 | .276 | 1 | | 1968 | .172 | 5 | | | Year | SHO | Rank | | 1964 | 4 | 1 | | 1966 | 1 | 6 | | 1968 | 1 | 9 | | 1970 | 4 | 8 | | 1972 | 1 | 4 | | 1973 | 1 | 8 | | | Year | GB% | Rank | | 1964 | 0.54 | 6 | | 1965 | 0.54 | 7 | | 1966 | 0.54 | 8 | | 1967 | 0.54 | 9 | | 1971 | 0.55 | 10 | | | |