Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12204140 | Gain flattening filter, and method for manufacturing gain flattening filter | Shigehiro Nagano, Takemi Hasegawa, Kazuaki Masui | 2025-01-21 |
| 11448821 | Slant-type fiber grating | Shigehiro Nagano, Manabu Shiozaki, Takemi Hasegawa | 2022-09-20 |
| 10908353 | Optical fiber and slanted fiber grating | Shigehiro Nagano, Manabu Shiozaki, Takemi Hasegawa | 2021-02-02 |
| 7773295 | Optical amplication module, optical amplifier, optical communication system, and white light source | Motoki Kakui | 2010-08-10 |
| 7525725 | Optical amplification module, optical amplifier, optical communication system, and white light source | Motoki Kakui | 2009-04-28 |