Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12019267 | Multicore optical fiber and design method | Taiji SAKAMOTO, Kazuhide NAKAJIMA, Takashi Matsui, Kunimasa Saitoh, Takeshi Fujisawa | 2024-06-25 |
| 11860405 | Hole assisted optical fiber | Saki NOZOE, Nobutomo HANZAWA, Yuto SAGAE, Kazuhide NAKAJIMA | 2024-01-02 |
| 11815421 | Acoustic mode propagation speed measurement method and acoustic mode propagation speed measurement device | Yuto SAGAE, Takashi Matsui, Kazuhide NAKAJIMA | 2023-11-14 |
| 11237322 | Optical fiber manufacturing method using relative bulk densities | Shinichi Arai, Harumi Inaba, Shigeto Matsumoto, Takeshi Yagi, Shinichi Aozasa +1 more | 2022-02-01 |
| 10871648 | Optical fiber design method | Takashi Matsui, Kazuhide NAKAJIMA, Fumihiko Yamamoto | 2020-12-22 |
| 10816722 | Optical fiber design method | Takashi Matsui, Fumihiko Yamamoto, Nobutomo HANZAWA | 2020-10-27 |
| 10545333 | Photonic crystal fiber and high-power light transmission system | Takashi Matsui, Kazuhide NAKAJIMA, Fumihiko Yamamoto | 2020-01-28 |
| 10539784 | Photonic crystal fiber and high-power light transmission system | Takashi Matsui, Kazuhide NAKAJIMA, Fumihiko Yamamoto | 2020-01-21 |
| 10444428 | Optical fiber and optical transmission system | Takashi Matsui, Fumihiko Yamamoto, Nobutomo HANZAWA | 2019-10-15 |
| 10310177 | Photonic crystal fiber | Takashi Matsui, Fumihiko Yamamoto, Nobutomo HANZAWA | 2019-06-04 |