Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7874725 | Optical fiber temperature distribution measuring apparatus, method for measuring optical fiber temperature distribution, and optical fiber temperature distribution measuring system | Hidehiko Komeda, Tsuyoshi Igi, Yasushi Koyano, Kazuaki Negishi | 2011-01-25 |
| 7324756 | Optical demultiplexer and optical transmission system | Masato Tanaka, Toshiaki Okuno | 2008-01-29 |
| 5946439 | Single-mode optical fiber | Yoshiaki Terasawa, Yosuke Yamazaki, Takatoshi Kato | 1999-08-31 |
| 5913005 | Single-mode optical fiber | Yoshiaki Terasawa, Takatoshi Kato, Yosuke Yamazaki | 1999-06-15 |