Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4517149 | Process for producing polyester fiber | Ken-ichiro Oka, Masatoshi Mineo | 1985-05-14 |
| 4390685 | Polyester fiber and process for producing same | Ken-ichiro Oka, Masatoshi Mineo | 1983-06-28 |