Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8208774 | Silica-based single core optical fiber, silica-based multi core optical fiber, and fabrication method for the same | Kazuyuki Hayashi, Takashi Tsumanuma | 2012-06-26 |
| 8208775 | Silica-based single core optical fiber, silica-based multi core optical fiber, and fabrication method for the same | Kazuyuki Hayashi, Takashi Tsumanuma | 2012-06-26 |
| 7418178 | Multi-core fiber | Kazuhiko Aikawa, Takashi Tsumanuma | 2008-08-26 |