Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10175553 | Optical module | Akira Ishii, Shinji Maruyama, Yuki SAKURAI, Masaharu Doi, Masami Kamioka | 2019-01-08 |
| 5276549 | Optical transmitter including rare earth-doped fiber | Kenji Tagawa, Shinya Inagaki, Keiko Takeda | 1994-01-04 |
| 5155621 | Optical fiber amplifier | Keiko Takeda, Shinya Inagaki, Kenji Tagawa | 1992-10-13 |