Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8180226 | Optical receiver | Masahito Mure, Kaoru Higuma, Norikazu Miyazaki, Toshio Kataoka, Hiroyuki Sato +3 more | 2012-05-15 |
| 6950222 | Apparatus and method for optical modulation | Hiroyuki Ibe | 2005-09-27 |
| 6643046 | Apparatus and method for optical modulation | Hiroyuki Ibe | 2003-11-04 |
| 5920414 | Wavelength division multiplexing optical transmission apparatus and optical repeater | Shigeru Ohshima | 1999-07-06 |