Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4954607 | Ferromagnetic organic substance having triaryl methane structure and process for manufacturing the same | Sugio Otani, Akira Kojima | 1990-09-04 |
| 4866157 | Thermosetting aromatic resin composition | Sugio Otani, Akira Kojima | 1989-09-12 |