Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8705680 | CDR circuit | Yusuke Ohtomo, Kazuyoshi Nishimura, Tomoaki Kawamura, Minoru Togashi, Keiji Kishine | 2014-04-22 |
| 8149978 | Clock/data recovery circuit | Yusuke Ohtomo, Kazuyoshi Nishimura, Keiji Kishine | 2012-04-03 |
| 6766089 | Low-dispersion optical fiber and optical transmission system using the low-dispersion optical fiber | Shinichi Arai, Ryuichi Sugizaki, Keiichi Aiso, Naoto Oyama, Hisashi Koaizawa +1 more | 2004-07-20 |
| 6684018 | Low-dispersion optical fiber and optical transmission system using the low-dispersion optical fiber | Shinichi Arai, Ryuichi Sugizaki, Keiichi Aiso, Naoto Oyama, Hisashi Koaizawa +1 more | 2004-01-27 |
| 5666454 | Preform for optical fiber and method of producing optical fiber | Hideaki Chiba, Mituhiro Kawasaki, Tadashi Takahashi | 1997-09-09 |