Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4442232 | Expandable styrene-maleic anhydride copolymer particles and a process for molding the same | Tetsuji Maeda | 1984-04-10 |
| 4303756 | Process for producing expandable thermoplastic resin beads | Hideaki Sasaki | 1981-12-01 |
| 4303757 | Process for producing expandable thermoplastic resin beads using polypropylene as nucleus | Hideaki Sasaki | 1981-12-01 |
| 4278627 | Expandable styrene-maleic anhydride copolymer particles and a process for molding the same | Tetsuji Maeda | 1981-07-14 |