Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5051475 | Polyester-based film | Kenji Tsunashima, Takashi Mimura, Takashi Sumiya | 1991-09-24 |
| 4908277 | Polyester film | Kenji Tsunashima, Takashi Mimura, Takashi Sumiya | 1990-03-13 |