| 06/05/1966 | Drafted in the 1966 first-year player draft by the Sapporo Bears. (Round 3, Pick 6, 30th overall pick). |
| 07/16/1966 | Named the #54 prospect in the BAN |
| 10/14/1966 | Named the #38 prospect in the BAN |
| 11/03/1966 | Was traded by the Sapporo Bears to the Kobe Bulls, along with SP Arata Komatsu, in exchange for 3B Sei Nakazato, RF Ikku Kawase, 2B Masao Nakamura, and C Yoshihito Kasai. |
| 11/10/1966 | Was traded by the Kobe Bulls to the Kinboshi Kites, along with RF Ryuunosuke Okamoto and 2B Takehiko Sakurai, in exchange for SP Kento Okada. |
| 05/01/1967 | Named the #32 prospect in the BAN |
| 07/16/1967 | Named the #41 prospect in the BAN |
| 05/01/1968 | Released by the Kinboshi Kites. |
| 05/10/1968 | Signed a 1-year contract worth a total of $18,600 with the Vesutan Bees organization. |
| 06/24/1968 | Released by the Vesutan Bees. |
| 07/07/1968 | Signed a 1-year contract worth a total of $17,600 with the Kyoto Owls organization. |
| 06/06/1969 | Released by the Kyoto Owls. |
| 06/11/1969 | Signed a 1-year contract worth a total of $18,400 with the Osaka Sailors organization. |
| 05/01/1970 | Unsuccessfully completed training to add a pitch to his arsenal at the Osaka Sailors development complex. |
| 05/01/1971 | Outstandingly completed training to add a pitch to his arsenal at the Osaka Sailors development complex. |
| 05/23/1971 | Injured (herniated disc (back)),out for one week. |
| 05/01/1972 | Unsuccessfully completed training to improve his pitch control at the Osaka Sailors development complex. |
| 05/01/1973 | Outstandingly completed training to improve his pitch control at the Osaka Sailors development complex. |
| 05/02/1973 | Pitches a 5-hit shutout against the Vesutan Bees with 8 strikeouts and 0 BB allowed! |
| 07/31/1973 | Was selected to the 1973 Baseball Association of Nippon All-Star Game. |
| 09/21/1973 | Injured (thumb contusion),day-to-day for 4 days. |
| 09/19/1974 | Injured (knee contusion),out for 2 weeks. |
| LEADERBOARD APPEARANCES |
| Year | GS | Rank | | 1971 | 30 | 3 | | 1972 | 31 | 1 | | 1973 | 30 | 6 | | | Year | L | Rank | | 1971 | 13 | 6 | | 1973 | 14 | 2 | | 1974 | 16 | 2 | | | Year | IP | Rank | | 1972 | 216.1 | 6 | | 1973 | 213.2 | 10 | | | | Year | HRA | Rank | | 1971 | 25 | 9 | | 1972 | 25 | 6 | | 1974 | 33 | 3 | |
| Year | BB | Rank | | 1971 | 100 | 4 | | 1972 | 113 | 7 | | | Year | K | Rank | | 1971 | 191 | 5 | | 1972 | 174 | 4 | | 1973 | 177 | 2 | | 1974 | 158 | 4 | | | Year | WP | Rank | | 1971 | 11 | 1 | | 1974 | 9 | 2 | | | Year | ERA | Rank | | 1973 | 2.49 | 3 | | | Year | BABIP | Rank | | 1972 | .246 | 6 | |
| Year | WHIP | Rank | | 1973 | 1.11 | 8 | | | Year | K/BB | Rank | | 1973 | 3.00 | 5 | | 1974 | 2.47 | 7 | | | Year | RA/9 | Rank | | 1972 | 11.98 | 10 | | 1973 | 10.24 | 8 | | | Year | H/9 | Rank | | 1972 | 6.99 | 6 | | 1973 | 7.50 | 10 | | | Year | BB/9 | Rank | | 1973 | 2.49 | 6 | |
| Year | K/9 | Rank | | 1971 | 8.73 | 6 | | 1972 | 7.24 | 5 | | 1973 | 7.46 | 2 | | 1974 | 7.70 | 1 | | | Year | QS | Rank | | 1971 | 19 | 7 | | 1972 | 18 | 7 | | 1973 | 23 | 1 | | | Year | QSP | Rank | | 1971 | .633 | 10 | | 1973 | .767 | 2 | | | | Year | WAR | Rank | | 1972 | 4.5 | 7 | | 1973 | 6.9 | 4 | |