Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653594 | Vibration generating apparatus | Hiroshi Yamamoto, Shuichi Satoh, Yoshiyuki Iwai, Masao Suda, Minoru Shiozaki +6 more | 1987-03-31 |
| 4576515 | Pipe laying apparatus | Keiji Morimoto, Shuichi Satoh, Yoshiyuki Iwai, Masao Suda, Kiyoshi Tsuchiya +2 more | 1986-03-18 |
| 4571122 | Pipe laying apparatus | Hiroshi Yamamoto, Shuichi Satoh, Yoshiyuki Iwai, Masao Suda, Minoru Shiozaki +6 more | 1986-02-18 |