Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5258572 | Distributing box for underground cables | Shotaro Ozeki | 1993-11-02 |
| 5198617 | Duct laying fixture for bellows type cable duct | Shotaro Ozeki, Keiji Imamura, Makoto Nakayama | 1993-03-30 |
| 5190408 | Method of laying underground cables | Shotaro Ozeki | 1993-03-02 |