Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485810 | Biaxially oriented polyester film and flexible disk | Toshifumi Osawa | 2002-11-26 |
| 6379774 | Composite polyester film and magnetic recording medium | Mitsuo Tojo, Toshifumi Osawa | 2002-04-30 |