Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9749061 | Digital signal processing device | Fukutaro HAMAOKA, Takeshi Seki, Toshiya Matsuda | 2017-08-29 |
| 9692543 | Optical transmission system | Toshiya Matsuda, Fukutaro HAMAOKA, Kohei Saito | 2017-06-27 |
| 7792430 | Automatic power restoring method and optical communication system | Hiroyuki Deguchi, Shinichirou Harasawa, Hideki Maeda, Gentaro Funatsu | 2010-09-07 |
| 7664392 | Automatic power restoring method and optical communication system | Hiroyuki Deguchi, Shinichirou Harasawa, Hideki Maeda, Gentaro Funatsu | 2010-02-16 |
| 7437069 | Automatic power restoring method and optical communication system | Hiroyuki Deguchi, Shinichirou Harasawa, Hideki Maeda, Gentaro Funatsu | 2008-10-14 |
| 7420666 | Measurement method by OTDR and terminal station apparatus | Takayuki Maehara, Shinichirou Harasawa, Gentaro Funatsu, Hideki Maeda | 2008-09-02 |
| 7215415 | Measurement method by OTDR and terminal station apparatus | Takayuki Maehara, Shinichirou Harasawa, Gentaro Funatsu, Hideki Maeda | 2007-05-08 |