| 06/05/1961 | Drafted in the 1961 first-year player draft by the Fukuoka Falcons. (Round 3, Pick 4, 28th overall pick). |
| 06/06/1961 | Released by the Fukuoka Falcons. |
| 06/15/1961 | Signed a 1-year minor league contract with the Vesutan Bees organization. |
| 03/07/1962 | Was traded by the Vesutan Bees to the Yokohama Kingfishers in exchange for SP Tadaatsu Sunada. |
| 05/01/1962 | Named the #11 prospect in the BAN |
| 10/13/1962 | Was traded by the Yokohama Kingfishers to the Sapporo Bears, along with 3B Naota Kodama, in exchange for LF Hidetsugu Yoshida and SS Michitake Honda. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 2; Movement: 2; Control: 2. |
| 01/01/1963 | OSA scouting updated ratings: Stuff: 2; Movement: 2; Control: 2. |
| 05/01/1963 | Named the #7 prospect in the BAN |
| 07/16/1963 | Named the #5 prospect in the BAN |
| 01/01/1964 | OSA scouting updated ratings: Stuff: 3; Movement: 2; Control: 2. |
| 03/22/1964 | Unsuccessfully completed training to improve his pitch control at the Sapporo Bears development complex. |
| 05/01/1964 | Named the #4 prospect in the BAN |
| 05/01/1965 | Named the #13 prospect in the BAN |
| 07/16/1965 | Named the #29 prospect in the BAN |
| 05/01/1966 | Named the #25 prospect in the BAN |
| 03/21/1969 | Successfully completed training to increase his pitch movement at the Sapporo Bears development complex. |
| 07/01/1972 | Injured (sore back),day-to-day for one week. |