Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139727 | Process for producing biaxially oriented polyester film | Shigeo Utsumi, Yujiro Fukuda, Takatoshi Miki | 1992-08-18 |
| 4865898 | Polyester film for magnetic recording media | Yujiro Fukuda, Shigeo Utsumi, Toshifumi Takisawa | 1989-09-12 |
| 4680217 | Polyester film for magnetic recording media | Tateo Kanesaki, Shigeo Utsumi | 1987-07-14 |
| 4677188 | Transparent slippery biaxially stretched polyester film | Shigeo Utsumi, Yujiro Fukuda | 1987-06-30 |
| 4610833 | Process for preparing biaxially stretched polyester films | Tateo Kanesaki, Shigeo Utsumi | 1986-09-09 |