Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8301040 | Optical transmission system using raman optical amplification | — | 2012-10-30 |
| 8233808 | Optical transmission system using four-wave mixing | — | 2012-07-31 |
| 4830490 | Apparatus for aligning optical fibers | Toshiaki Kakii, Yuichi Toda, Yuichi Usui, Mitsuaki Osanai, Yasuyaki Kato | 1989-05-16 |
| 4722584 | Optical connector ferrule and process for production thereof | Toshiaki Kakii, Koichiro Matsuno | 1988-02-02 |
| 4383844 | Optical fiber fusion splicing method | Fumihiro Nihei | 1983-05-17 |