Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6748151 | Optical fiber attenuator with attenuating dopant limited to a central or peripheral area of the fiber core | Masaru Watanabe, Eiji Matsuyama, Akiyoshi Naruse, Yuichi Murakami, Kenichi Muta | 2004-06-08 |