Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12306438 | Optical waveguide | Kenya Suzuki, Keita Yamaguchi, Ai Yanagihara | 2025-05-20 |
| 12107626 | Wavelength monitoring device and controlling method thereof | Osamu Moriwaki, Takashi Saida, Kenya Suzuki, Manabu Oguma, Yuichiro Ikuma | 2024-10-01 |
| 12092870 | Optical waveguide | Kenya Suzuki, Keita Yamaguchi, Ai Yanagihara | 2024-09-17 |
| 12032231 | Optical signal processing apparatus and manufacturing method thereof | Keita Yamaguchi, Ai Yanagihara, Kenya Suzuki, Osamu Moriwaki | 2024-07-09 |
| 12022246 | Optical signal processing apparatus | Keita Yamaguchi, Kenya Suzuki, Osamu Moriwaki, Ai Yanagihara | 2024-06-25 |
| 12007665 | Optical signal processing apparatus | Keita Yamaguchi, Kenya Suzuki, Osamu Moriwaki, Ai Yanagihara | 2024-06-11 |
| 11977315 | Optical module | Ai Yanagihara, Kenya Suzuki, Keita Yamaguchi, Yuko Kawajiri | 2024-05-07 |
| 11973535 | Wavelength monitoring circuit | Osamu Moriwaki, Manabu Oguma, Kenya Suzuki, Yuichiro Ikuma | 2024-04-30 |
| 11835761 | Planar optical waveguide circuit | Osamu Moriwaki, Kenya Suzuki, Manabu Oguma, Yuichiro Ikuma | 2023-12-05 |
| 11822206 | Optical signal processing device | Mitsumasa Nakajima, Masanobu Inubushi, Toshikazu Hashimoto | 2023-11-21 |
| 11740491 | Optical module and manufacturing method thereof | Ai Yanagihara, Kenya Suzuki, Keita Yamaguchi | 2023-08-29 |
| 11405702 | Optical signal processing device and method for controlling same | Keita Yamaguchi, Kenya Suzuki, Osamu Moriwaki, Ai Yanagihara | 2022-08-02 |
| 11194093 | Optical switch array and multicast switch | Kazunori Senoo, Keita Yamaguchi, Kenya Suzuki | 2021-12-07 |
| 11162187 | Vapor phase growth device, and EPI wafer producing method | — | 2021-11-02 |
| 11152521 | Semiconductor laminate and light-receiving element | Takuma FUYUKI, Takashi Ishizuka | 2021-10-19 |
| 11112561 | Variable wavelength filter | Kenya Suzuki, Osamu Moriwaki, Ai Yanagihara, Keita Yamaguchi | 2021-09-07 |
| 11081605 | Semiconductor laminate, light-receiving element, and method for manufacturing semiconductor laminate | Takuma FUYUKI, Tomohiro Doi, Takashi Ishizuka | 2021-08-03 |
| 10790401 | Semiconductor stacked body and light-receiving device | Takuma FUYUKI, Takashi Ishizuka | 2020-09-29 |