Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837115 | Thermoplastic polyester composition having improved flavor-retaining property and vessel formed therefrom | Reiko Igarashi, Sadao Hirata | 1989-06-06 |
| 4820795 | Polyester vessel and package | Sadao Hirata | 1989-04-11 |