Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867528 | Pressure-resistant sheath of a submarine optical fibre cable and method for the production thereof | Kiyoshi Funaki, Jiro Ikeda, Masatsugu Murao, Mitsuaki Murao, Yoshinori Murao +1 more | 1989-09-19 |