| 01/30/1954 |
Joined the Sakura Prep Swordsmen. |
| 05/03/1954 |
Named to the 1954 Geiyo Islands League for the Itsukushima Trawlers. |
| 08/11/1954 |
Successfully completed training to improve his infield defense at the Sakura Prep Swordsmen development complex. |
| 01/01/1955 |
OSA scouting updated ratings (potential): Contact: 40 (75); Power: 30 (40); Eye: 30 (35). |
| 03/07/1955 |
Named to the 1955 World Youth Championship for the Japan. |
| 01/01/1956 |
OSA scouting updated ratings (potential): Contact: 40 (75); Power: 30 (40); Eye: 30 (35). |
| 04/14/1956 |
Injured (knee contusion),day-to-day for 4 days. |
| 11/05/1956 |
Named to the 1956 World Youth Championship for the Japan. |
| 01/01/1957 |
OSA scouting updated ratings (potential): Contact: 45 (75); Power: 30 (40); Eye: 30 (35). |
| 07/03/1957 |
Released by the Sakura Prep Swordsmen. |
| 07/03/1957 |
Drafted in the 1957 first-year player draft by the Los Angeles Stars. (Round 18, Pick 4, 140th overall pick). |
| 11/04/1957 |
Named to the 1957 World Junior Championship for the Japan. |
| 01/01/1958 |
OSA scouting updated ratings (potential): Contact: 40 (70); Power: 35 (40); Eye: 30 (40). |
| 03/03/1958 |
Named to the 1958 Crown Prince Challenge for the Japan. |
| 01/01/1959 |
OSA scouting updated ratings (potential): Contact: 45 (65); Power: 35 (40); Eye: 30 (40). |