Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6126143 | Hoisting winch for lifting and lowering | Keigo Fukunaga, Naoya Ogawa | 2000-10-03 |
| 5802231 | Flat optical fiber cable | Ryuichiro Nagano, Hajime Tamura | 1998-09-01 |
| 5748826 | Optical fiber core | Ryuichiro Nagano, Hajime Tamura | 1998-05-05 |
| 5737470 | Flat optical fiber cable | Ryuichiro Nagano, Hajime Tamura | 1998-04-07 |