Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8709589 | White polyester film and surface light source therewith | Shigeru Aoyama, Kozo Takahashi | 2014-04-29 |
| 8680206 | Polyester film and a production process thereof, and a surface light source, solar battery backsheet and solar battery respectively obtained by using the same | Shigeru Aoyama, Kozo Takahashi | 2014-03-25 |