Issued Patents All Time
Showing 1–25 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12306438 | Optical waveguide | Takashi Go, Keita Yamaguchi, Ai Yanagihara | 2025-05-20 |
| 12223809 | Settlement terminal | — | 2025-02-11 |
| 12107762 | Optical and electronic integrated switch | Osamu Moriwaki, Shunichi Soma, Keita Yamaguchi, Seiki Kuwabara, Tetsuro Inui +3 more | 2024-10-01 |
| 12107626 | Wavelength monitoring device and controlling method thereof | Osamu Moriwaki, Takashi Saida, Takashi Go, Manabu Oguma, Yuichiro Ikuma | 2024-10-01 |
| 12092870 | Optical waveguide | Takashi Go, Keita Yamaguchi, Ai Yanagihara | 2024-09-17 |
| 12032231 | Optical signal processing apparatus and manufacturing method thereof | Keita Yamaguchi, Ai Yanagihara, Takashi Go, Osamu Moriwaki | 2024-07-09 |
| 12022246 | Optical signal processing apparatus | Keita Yamaguchi, Takashi Go, Osamu Moriwaki, Ai Yanagihara | 2024-06-25 |
| 12007665 | Optical signal processing apparatus | Keita Yamaguchi, Takashi Go, Osamu Moriwaki, Ai Yanagihara | 2024-06-11 |
| 11995861 | Information processing system, content generation device, content presentation device, content generation method, content presentation method, and program | Kazu MIYAKAWA, Shingo Kinoshita, Satoshi Sakuma, Tatsuya Matsui | 2024-05-28 |
| 11979694 | Optical and electronic integrated switch | Osamu Moriwaki, Shunichi Soma, Keita Yamaguchi, Seiki Kuwabara, Tetsuro Inui +3 more | 2024-05-07 |
| 11977315 | Optical module | Ai Yanagihara, Takashi Go, Keita Yamaguchi, Yuko Kawajiri | 2024-05-07 |
| 11973535 | Wavelength monitoring circuit | Osamu Moriwaki, Manabu Oguma, Takashi Go, Yuichiro Ikuma | 2024-04-30 |
| 11930309 | Optical and electronic integrated switch | Keita Yamaguchi, Osamu Moriwaki, Shunichi Soma, Seiki Kuwabara, Tetsuro Inui +3 more | 2024-03-12 |
| 11881897 | Optical and electronic integrated switch and optical network system | Hideki Nishizawa, Seiki Kuwabara, Seiji Okamoto, Shuto Yamamoto, Tetsuro Inui +3 more | 2024-01-23 |
| 11835761 | Planar optical waveguide circuit | Osamu Moriwaki, Takashi Go, Manabu Oguma, Yuichiro Ikuma | 2023-12-05 |
| 11740491 | Optical module and manufacturing method thereof | Ai Yanagihara, Takashi Go, Keita Yamaguchi | 2023-08-29 |
| 11656405 | Optical multi/demultiplexing circuit | Manabu Oguma, Osamu Moriwaki | 2023-05-23 |
| 11635641 | Planar-lightwave-type optical device | Ai Yanagihara, Ryoichi Kasahara, Kazunori Seno, Yuko Kawajiri | 2023-04-25 |
| 11405702 | Optical signal processing device and method for controlling same | Keita Yamaguchi, Takashi Go, Osamu Moriwaki, Ai Yanagihara | 2022-08-02 |
| 11194093 | Optical switch array and multicast switch | Kazunori Senoo, Keita Yamaguchi, Takashi Go | 2021-12-07 |
| 11112561 | Variable wavelength filter | Takashi Go, Osamu Moriwaki, Ai Yanagihara, Keita Yamaguchi | 2021-09-07 |
| 11054575 | Optical spectrum shaper and optical signal monitor using same | Mitsumasa Nakajima, Kazunori Senoo, Toshikazu Hashimoto | 2021-07-06 |
| 10965375 | Optical node device | Hirotaka Ono, Kazunori Senoo, Keita Yamaguchi, Mitsunori Fukutoku, Shingo Kawai +1 more | 2021-03-30 |
| 10797817 | Optical signal processing device | Kazunori Seno, Mitsumasa Nakajima, Keita Yamaguchi, Masashi Miyata, Takashi Goh +1 more | 2020-10-06 |
| 10254625 | Optical signal processing device | Kei Kuwabara, Yuichi Higuchi, Mitsumasa Nakajima, Yuichiro Ikuma, Osamu Moriwaki +3 more | 2019-04-09 |