Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10782589 | Wavelength conversion apparatus, optical parametric amplifier, transmission apparatus, and optical transmission system | Tomoaki Takeyama, Ichiro Nakajima | 2020-09-22 |
| 7382496 | Image forming apparatus | Yukihiko Sugimoto, Ryuichi Nakashima, Hiroshi Kubota, Yasuo Yoshioka, Katsuhiko Kyuken | 2008-06-03 |