Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6198859 | Dispersion compensating device using dispersion compensating fiber module | — | 2001-03-06 |
| 5116082 | Electrofusion of electrofusion joint, method of confirming state of fusion and fusion joint suitable for use in the methods | Naotake Uda | 1992-05-26 |
| 4994655 | Electro-fusion joint | Naotake Uda | 1991-02-19 |
| 4684430 | Apparatus for fusibly interconnecting thermoplastic pipes | Yasushi Takeuchi, Masumi Kato, Hisazi Seki | 1987-08-04 |