Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5458958 | Speaker cone and process for production thereof | Hidetoshi Kanzaki, Noboru Saiga | 1995-10-17 |
| 5344711 | Acrylic synthetic fiber and process for preparation thereof | Hidetoshi Kanzaki | 1994-09-06 |