Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12246660 | Grommet | — | 2025-03-11 |
| 12237099 | Grommet | — | 2025-02-25 |
| 11844002 | Environmental information management system | Jin KAWASAKI, Tomooki UKIANA | 2023-12-12 |
| 10393581 | Spectroscope | Yuichi Hagihara, Norikazu Takahashi | 2019-08-27 |
| 8547629 | Gain and signal level adjustments of cascaded optical amplifiers | Shinya Inagaki, Norifumi Shukunami, Susumu Kinoshita, Hiroyuki Itou | 2013-10-01 |
| 7969648 | Gain and signal level adjustments of cascaded optical amplifiers | Shinya Inagaki, Norifumi Shukunami, Susumu Kinoshita, Hiroyuki Itou | 2011-06-28 |
| 7924499 | Gain and signal level adjustments of cascaded optical amplifiers | Shinya Inagaki, Norifumi Shukunami, Susumu Kinoshita, Hiroyuki Itou | 2011-04-12 |
| 7061666 | Gain and signal level adjustments of cascaded optical amplifiers | Shinya Inagaki, Norifumi Shukunami, Susumu Kinoshita, Hiroyuki Itou | 2006-06-13 |
| 6603596 | Gain and signal level adjustments of cascaded optical amplifiers | Shinya Inagaki, Norifumi Shukunami, Susumu Kinoshita, Hiroyuki Itou | 2003-08-05 |
| 6496300 | Optical amplifier | Susumu Kinoshita, Miki Onaka, Yasushi Sugaya, Chihiro Ohshima, Terumi Chikama +2 more | 2002-12-17 |
| 6373625 | Method, apparatus, and system for optical amplification | Hiroyuki Itou | 2002-04-16 |
| 6111688 | Optical amplifier and system including the same | Yoshihito Onoda, Tadashi Okiyama | 2000-08-29 |
| 6014248 | Wavelength division multiplexed optical signal amplifier | Tadashi Okiyama, Shinya Inagaki | 2000-01-11 |