Issued Patents 2024
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12113927 | Multiple dwelling house interphone system | Masashi Hattori, Ryoji Uno, Kimiaki Fujishima | 2024-10-08 |
| 12052384 | Multiple dwelling house interphone system | Masashi Hattori, Ryoji Uno, Kimiaki Fujishima | 2024-07-30 |