Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7649619 | Optical time domain reflectometer | — | 2010-01-19 |
| 6577385 | Optical time-domain reflectometer capable of determining when a test of an optical fiber should be conducted | Takashi Sakamoto, Keita Kato, Masaki Omori | 2003-06-10 |