Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12341320 | Optical combiner and laser apparatus | Tomoyuki Fujita, Kiwamu Suzuki | 2025-06-24 |
| 11955777 | Optical combiner and laser apparatus | Tomoyuki Fujita, Yutaka Yamaguchi, Takuya Kobayashi, Kiwamu Suzuki | 2024-04-09 |
| 11808982 | Optical combiner, laser device, and method for manufacturing optical combiner | — | 2023-11-07 |
| 11703647 | Optical fiber securing structure and laser device | Yoshitaka Nakamura, Naoyuki Sugiyama, Hiroto Nakazato, Yasushi Oikawa, Akari Takahashi | 2023-07-18 |
| 11422307 | Cladding mode stripper | — | 2022-08-23 |
| 10879666 | Optical fiber and fiber laser | — | 2020-12-29 |
| 10845541 | Cladding mode light removal structure and laser apparatus | Kenji Kuniyasu | 2020-11-24 |
| 10833470 | Optical fiber and fiber laser | — | 2020-11-10 |
| 10466417 | Optical fiber fusion splice structure and method of manufacturing laser apparatus | Kenji Kuniyasu | 2019-11-05 |
| 10168483 | Method for connecting optical waveguide and optical fiber, semiconductor optical device, and method for manufacturing semiconductor optical device having optical fiber connected thereto | Hiroki Ishihara | 2019-01-01 |
| 9857533 | Optical waveguide element, light-receiving device, optical communication device, optical modulator, optical resonator, and method for manufacturing optical waveguide element | Hiroyuki Kusaka, Kazuhiro Goi, Kensuke Ogawa | 2018-01-02 |
| 9817294 | Optical modulation device | Kazuhiro Goi, Hiroki Ishihara, Kensuke Ogawa, Kenji Oda, Hiroyuki Kusaka +1 more | 2017-11-14 |
| 9423667 | High-frequency circuit and optical modulator | — | 2016-08-23 |
| 7450802 | Optical fiber coupler and optical fiber therefor | Yuu Ishii, Daiichiro Tanaka | 2008-11-11 |
| 7050672 | Polarization-maintaining optical fiber and polarization-maintaining optical fiber component | Hideki Sasaki, Kenji Nishide, Ryozo Yamauchi, Shigefumi Yamasaki | 2006-05-23 |
| 6463195 | Method of manufacturing polarization-maintaining optical fiber coupler | Hideki Sasaki, Ryozo Yamauchi, Hiroshi Hidaka, Kenji Nishide, Shigefumi Yamasaki +1 more | 2002-10-08 |