Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12399317 | Optical fiber bundle structure, optical fiber connection structure, and optical fiber bundle structure manufacturing method | Kengo Watanabe, Masanori Takahashi, Koichi Maeda, Shigehiro Takasaka | 2025-08-26 |
| 12248171 | Multi-core optical amplifying fiber, multi-core optical fiber amplifier, and optical communication system | Shigehiro Takasaka, Koichi Maeda | 2025-03-11 |
| 12222541 | Optical fiber bundle structure, optical connector, optical fiber connection structure, and method of manufacturing optical fiber bundle structure | Kohei KAWASAKI, Masayoshi Tsukamoto, Masanori Takahashi, Shigehiro Takasaka, Koichi Maeda | 2025-02-11 |
| 12204141 | Optical fiber bundle structure, optical connector, optical fiber connection structure, and method of manufacturing optical fiber bundle structure | Kohei KAWASAKI, Masayoshi Tsukamoto, Masanori Takahashi, Shigehiro Takasaka, Koichi Maeda | 2025-01-21 |
| 12001050 | Manufacturing method of multicore fiber preform, multicore fiber preform, and multicore fiber | Masanori Takahashi, Koichi Maeda, Shinichi Arai, Masayoshi Tsukamoto | 2024-06-04 |
| 11940649 | Optical fiber bundle structure, optical connector, optical fiber connection structure, and method of manufacturing optical fiber bundle structure | Kohei KAWASAKI, Masayoshi Tsukamoto, Masanori Takahashi, Shigehiro Takasaka, Koichi Maeda | 2024-03-26 |
| 11519759 | Cable, cable shape sensing system, sensing system, and cable shape sensing method | Masateru Tadakuma, Shigehiro Takasaka | 2022-12-06 |
| 11378735 | Multi-core fiber | Masanori Takahashi, Masayoshi Tsukamoto | 2022-07-05 |
| 9891378 | Cascaded core multicore fiber and manufacturing method for same | Katsunori Imamura, Tomohiro Gonda, Taiji SAKAMOTO, Takayoshi Mori, Masaki Wada +2 more | 2018-02-13 |
| 9722388 | Multi-core optical amplifying fiber device and multi-core optical fiber amplifier | Masateru Tadakuma, Koichi Maeda, Yukihiro TSUCHIDA, Shigehiro Takasaka | 2017-08-01 |
| 9695079 | Production method of optical fiber preform, and production method of optical fiber | Tomohiro Gonda, Katsunori Imamura, Ryo Miyabe | 2017-07-04 |
| 9225141 | Multi-core amplification optical fiber and multi-core optical fiber amplifier | Yukihiro TSUCHIDA, Koichi Maeda, Yu Mimura, Hiroshi Matsuura, Kengo Watanabe +4 more | 2015-12-29 |
| 9075185 | Hole-assisted optical fiber | Naomi Kumano, Iwao Shimotakahara, Takeshi Yagi, Tomoya Shimizu, Takashi Matsui +3 more | 2015-07-07 |
| 8977096 | Optical fibers | Iwao Shimotakahara, Takeshi Yagi | 2015-03-10 |
| 8181487 | Optical fiber preform manufacturing method | Naomi Kumano, Iwao Shimotakahara, Harumi Inaba, Takeshi Yagi, Tomoya Shimizu +2 more | 2012-05-22 |
| 7925132 | Nonlinear optical fiber, nonlinear optical device, and optical signal processing apparatus | Yuki Taniguchi, Jiro Hiroishi, Masanori Takahashi | 2011-04-12 |
| 7878712 | Optical fiber, optical fiber ribbon, and optical interconnection system | Iwao Shimotakahara, Harumi Inaba | 2011-02-01 |
| 7787732 | Optical fiber and optical fiber ribbon, and optical interconnection system | Iwao Shimotakahara, Harumi Inaba, Takeshi Yagi | 2010-08-31 |
| 7756375 | Optical fiber and waveguide | Ryo Miyabe | 2010-07-13 |
| 7715674 | Optical fiber and waveguide | Ryo Miyabe | 2010-05-11 |
| 7689080 | Optical fiber ribbon | Harumi Inaba, Takeshi Yagi | 2010-03-30 |
| 7583878 | Optical fiber, optical fiber ribbon, and optical interconnection system | Iwao Shimotakahara, Harumi Inaba, Takeshi Yagi | 2009-09-01 |
| 7574088 | Optical fiber and optical fiber ribbon, and optical interconnection system | Iwao Shimotakahara, Harumi Inaba, Takeshi Yagi | 2009-08-11 |
| 7519255 | Optical fiber | Naomi Kumano | 2009-04-14 |
| 7505659 | Optical fiber and optical transmission line and optical communication system including such optical fiber | Naomi Kumano, Kazunori Mukasa, Takeshi Yagi | 2009-03-17 |