Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12219085 | Multiple dwelling house interphone system | Hirokazu Harima, Kimiaki Fujishima, Ryoji Uno | 2025-02-04 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12219085 | Multiple dwelling house interphone system | Hirokazu Harima, Kimiaki Fujishima, Ryoji Uno | 2025-02-04 |