Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4221639 | Aluminium alloy cylinder and manufacturing method thereof | Tadashi Ozaki, Minoru Yonekawa, Hitoshi Harada | 1980-09-09 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4221639 | Aluminium alloy cylinder and manufacturing method thereof | Tadashi Ozaki, Minoru Yonekawa, Hitoshi Harada | 1980-09-09 |