Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12411287 | Optical side input/output circuit and optical connector | Yoko YAMASHITA, Takashi Matsui | 2025-09-09 |
| 12405418 | Multicore optical fiber, method of designing multicore optical fiber, and optical transmission method | Takashi Matsui | 2025-09-02 |
| 12352652 | Evaluation method and evaluation device for multi-core fiber | Nobutomo HANZAWA, Takashi Matsui, Yuto SAGAE | 2025-07-08 |
| 12203847 | Shape measurement system and shape measurement method | Nobutomo HANZAWA, Takashi Matsui, Hideaki Murayama, Ryota WADA, Makito Kobayashi | 2025-01-21 |
| 12189178 | Optical fiber | Yuto SAGAE, Takashi Matsui | 2025-01-07 |
| 12181707 | Multi-core optical fiber and design method | Takashi Matsui, Taiji SAKAMOTO, Yuto SAGAE | 2024-12-31 |
| 12181706 | Multi-core optical fiber and design method | Taiji SAKAMOTO, Masaki Wada, Shinichi Aozasa, Takashi Yamamoto | 2024-12-31 |
| 12174413 | Long period fiber grating and optical transmission system | Ryota IMADA, Yoko YAMASHITA, Takashi Matsui, Taiji SAKAMOTO, Nobutomo HANZAWA +3 more | 2024-12-24 |
| 12158607 | Propagation mode loss difference compensator | Yoko YAMASHITA, Takashi Matsui | 2024-12-03 |
| 12117645 | Multicore optical fiber and design method | Takashi Matsui | 2024-10-15 |
| 12085749 | Optical fiber evaluation device and optical fiber evaluation method | Nobutomo HANZAWA, Takashi Matsui, Yuto SAGAE | 2024-09-10 |
| 12034487 | Optical transmission system | Taiji SAKAMOTO, Masaki Wada, Takashi Yamamoto | 2024-07-09 |
| 12019267 | Multicore optical fiber and design method | Taiji SAKAMOTO, Takashi Matsui, Kyozo Tsujikawa, Kunimasa Saitoh, Takeshi Fujisawa | 2024-06-25 |
| 11956070 | Optical transmission system | Taiji SAKAMOTO, Masaki Wada, Takashi Yamamoto | 2024-04-09 |
| 11906783 | Core position grasping method, connection method, and connection device | Yoko YAMASHITA, Masaki Wada, Takashi Matsui | 2024-02-20 |
| 11899237 | Multicore optical fiber, method of designing multicore optical fiber, and optical transmission method | Takashi Matsui | 2024-02-13 |
| 11860405 | Hole assisted optical fiber | Saki NOZOE, Nobutomo HANZAWA, Yuto SAGAE, Kyozo Tsujikawa | 2024-01-02 |
| 11815421 | Acoustic mode propagation speed measurement method and acoustic mode propagation speed measurement device | Yuto SAGAE, Takashi Matsui, Kyozo Tsujikawa | 2023-11-14 |
| 11762144 | Multicore optical fiber and design method | Takashi Matsui | 2023-09-19 |
| 11722223 | Optical communication system and optical communication method | Yuto SAGAE, Takashi Matsui, Taiji SAKAMOTO | 2023-08-08 |
| 11474303 | Optical connector ferrule, sleeve, and method for manufacturing ferrule member | Masaaki Takaya, Yoshiteru Abe, Ryo Koyama, Chisato FUKAI, Kazunori KATAYAMA +1 more | 2022-10-18 |
| 11454757 | Multi-core fiber connector | Taiji SAKAMOTO, Yoshiteru Abe | 2022-09-27 |
| 11366266 | Optical fiber and optical transmission system | Yuto SAGAE, Takashi Matsui | 2022-06-21 |
| 11237322 | Optical fiber manufacturing method using relative bulk densities | Shinichi Arai, Harumi Inaba, Shigeto Matsumoto, Takeshi Yagi, Shinichi Aozasa +1 more | 2022-02-01 |
| 11196227 | Optical amplifier | Masaki Wada, Shinichi Aozasa, Taiji SAKAMOTO, Takashi Yamamoto, Takayoshi Mori | 2021-12-07 |