Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886873 | Aromatic hetero ring-containing polyimide and its composite | Masatoshi Kimura, Shohachi Morita | 1989-12-12 |
| 4840981 | Polyethylene terephthalate resin composition | Masayoshi Hasuo, Ryo Saito, Isao Ikuhara | 1989-06-20 |