Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4221639 | Aluminium alloy cylinder and manufacturing method thereof | Chikato Ninagawa, Tadashi Ozaki, Minoru Yonekawa | 1980-09-09 |
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4221639 | Aluminium alloy cylinder and manufacturing method thereof | Chikato Ninagawa, Tadashi Ozaki, Minoru Yonekawa | 1980-09-09 |