Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4528221 | Polystyrene foamed sheet suitable for forming | Nobuyuki Komatsuzaki, Masahiro Tsubone | 1985-07-09 |
| 4463861 | Sheet for forming sleeve and process for producing the same | Masahiro Tsubone | 1984-08-07 |
| 4426065 | Continuous process for the production of polystyrene foamed articles | Nobuyuki Komatsuzaki, Masahiro Tsubone | 1984-01-17 |