Issued Patents All Time
Showing 1–25 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12092879 | Multicore fiber, optical fiber cable, and optical connector | Yusuke Sasaki, Masaki Ohzeki | 2024-09-17 |
| 12092859 | Multicore fiber, optical fiber cable, and optical connector | Yusuke Sasaki, Masaki Ohzeki | 2024-09-17 |
| 11960120 | Method for aligning multicore fiber, method for manufacturing multicore fiber connector, device for aligning multicore fiber, and multicore fiber fusion splicing machine | Masaki Ohzeki | 2024-04-16 |
| 11834365 | Optical fiber preform production method, optical fiber preform, and optical fiber production method | Yoshimichi Amma, Ryohei Fukumoto | 2023-12-05 |
| 10690843 | Multicore fiber | Yusuke Sasaki, Kunimasa Saitoh, Toshio Morioka | 2020-06-23 |
| 10663653 | Multicore fiber for communication | Shoichiro Matsuo, Yusuke Sasaki, Kunimasa Saitoh | 2020-05-26 |
| 10656327 | Optical fiber | Shota Saito | 2020-05-19 |
| 10488297 | Characteristic-measuring apparatus and characteristic-measuring method for multi-core fiber | Shota Saito | 2019-11-26 |
| 10444113 | Method of measuring crosstalk of multicore fiber and apparatus of measuring the same | Shota Saito | 2019-10-15 |
| 10365429 | Multicore fiber and optical cable | Shota Saito, Kunimasa Saitoh, Takeshi Fujisawa | 2019-07-30 |
| 10310176 | Multi-core fiber | Yusuke Sasaki, Kunimasa Saitoh | 2019-06-04 |
| 10295736 | Multicore fiber | Yoshimichi Amma, Shota Saito | 2019-05-21 |
| 10162136 | Optical transmission device and bidirectional optical transmission device | Kazuhiro Goi | 2018-12-25 |
| 10156674 | Multicore fiber for communication | Shoichiro Matsuo, Yusuke Sasaki, Kunimasa Saitoh | 2018-12-18 |
| 10101526 | Multicore fiber | Yusuke Sasaki, Kunimasa Saitoh | 2018-10-16 |
| 10042114 | Multicore fiber for communication | Shoichiro Matsuo, Yusuke Sasaki, Kunimasa Saitoh | 2018-08-07 |
| 9891377 | Multicore fiber and optical cable | Shota Saito, Kunimasa Saitoh, Takeshi Fujisawa | 2018-02-13 |
| 9817183 | Multicore fiber | Yoshimichi Amma, Yusuke Sasaki, Kunimasa Saitoh | 2017-11-14 |
| 9709729 | Multicore fiber with different-mode interaction section | Yusuke Sasaki, Hitoshi Uemura, Kunimasa Saitoh | 2017-07-18 |
| 9698557 | Optical fiber for amplification and optical fiber amplifier using the same | Tsukasa Hosokawa, Kentaro Ichii, Shoichiro Matsuo, Hirotaka Ono, Makoto Yamada | 2017-07-04 |
| 9673589 | Amplification optical fiber and optical fiber amplifier | Tsukasa Hosokawa, Kentaro Ichii, Shoichiro Matsuo, Hirotaka Ono, Makoto Yamada | 2017-06-06 |
| 9588284 | Multi-core fiber | Yusuke Sasaki, Yoshimichi Amma, Kunimasa Saitoh | 2017-03-07 |
| 9515450 | Amplifying optical fiber and optical amplifier | Shoichiro Matsuo, Kentaro Ichii, Hirotaka Ono, Kyouzou Tsujikawa, Makoto Yamada +1 more | 2016-12-06 |
| 9477035 | Optical device | Hitoshi Uemura, Kunimasa Saitoh | 2016-10-25 |
| 9435943 | Optical device | Hitoshi Uemura, Kunimasa Saitoh | 2016-09-06 |