Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4403710 | Easily-openable heat seal lid | Kazumi Hirota, Yotaro Tsutsumi, Tadahiko Katsura, Kikuo Matsuoka, Ichiro Hori | 1983-09-13 |
| 4310578 | Retort-sterilizable laminated structure and process for preparation thereof | Tadahiko Katsura, Kenji Suzuki | 1982-01-12 |
| 4291085 | Packaging material for food to be subjected to high-temperature short-time sterilization and process for the preparation thereof | Kenji Suzuki | 1981-09-22 |