Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5283391 | Adapter for wiring | — | 1994-02-01 |
| 5258572 | Distributing box for underground cables | Masakazu Kawanabe | 1993-11-02 |
| 5198617 | Duct laying fixture for bellows type cable duct | Masakazu Kawanabe, Keiji Imamura, Makoto Nakayama | 1993-03-30 |
| 5190408 | Method of laying underground cables | Masakazu Kawanabe | 1993-03-02 |