Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812014 | Water penetration-detecting apparatus and optical fiber cable using same | Hiroyuki Sawano, Hideo Suzuki, Yasuyuki Sugawara, Kazunaga Kobayashi | 1989-03-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812014 | Water penetration-detecting apparatus and optical fiber cable using same | Hiroyuki Sawano, Hideo Suzuki, Yasuyuki Sugawara, Kazunaga Kobayashi | 1989-03-14 |