Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11667559 | Method for manufacturing optical fiber parent material, and method for manufacturing optical fiber | Satoshi Tanaka | 2023-06-06 |
| 11345627 | Method of manufacturing optical fiber preform and optical fiber preform | Masaaki Hirano, Yoshiaki Tamura, Yuki Kawaguchi | 2022-05-31 |
| 10155687 | Optical fiber preform | Yoshiaki Tamura, Yuki Kawaguchi | 2018-12-18 |
| 10031285 | Multicore optical fiber | Tetsuya Nakanishi, Tetsuya Hayashi, Takashi Sasaki, Yoshiaki Tamura | 2018-07-24 |
| 9932265 | Method of making an optical fiber containing an alkali metal in the core | Masaaki Hirano, Yoshiaki Tamura, Tetsuya Nakanishi | 2018-04-03 |
| 9910216 | Optical fiber | Yoshiaki Tamura, Yoshihiro Tukuda | 2018-03-06 |
| 9817184 | Optical fiber | Yoshiaki Tamura, Masaaki Hirano, Hirotaka Sakuma | 2017-11-14 |
| 9588286 | Optical fiber | Masaaki Hirano, Yoshiaki Tamura, Nobuhiro Hikichi | 2017-03-07 |
| 9575245 | Optical fiber | Yoshiaki Tamura, Yoshihiro Saito, Yuki Kawaguchi, Masaaki Hirano | 2017-02-21 |
| 9527765 | Optical fiber manufacturing method and optical fiber | Masaaki Hirano, Yoshiaki Tamura, Tetsuya Nakanishi | 2016-12-27 |
| 9512033 | Optical fiber preform | Masaaki Hirano, Yoshiaki Tamura | 2016-12-06 |
| 9411095 | Optical-fiber preform and method for manufacturing optical-fiber preform | Yoshiaki Tamura, Masaaki Hirano | 2016-08-09 |
| 9340444 | Optical fiber preform manufacturing method, optical fiber preform, and optical fiber | Masaaki Hirano, Yoshiaki Tamura | 2016-05-17 |
| 9335465 | Optical fiber and optical fiber preform | Masaaki Hirano, Yoshiaki Tamura | 2016-05-10 |
| 9322990 | Optical fiber preform | Masaaki Hirano, Yoshiaki Tamura | 2016-04-26 |
| 9229160 | Optical fiber preform, method for producing optical fiber, and optical fiber | Yoshiaki Tamura, Masaaki Hirano | 2016-01-05 |
| 9199877 | Method for manufacturing optical fiber base material, and optical fiber | Masaaki Hirano, Yoshiaki Tamura | 2015-12-01 |
| 9139466 | Optical fiber preform, optical fiber, and method of manufacturing optical fiber preform | Masaaki Hirano, Yoshiaki Tamura | 2015-09-22 |
| 9097834 | Optical fiber and optical fiber preform | Masaaki Hirano, Yoshiaki Tamura | 2015-08-04 |
| 9036972 | Optical fiber preform, method for producing optical fiber, and optical fiber | Yoshiaki Tamura, Masaaki Hirano | 2015-05-19 |
| 8909016 | Optical fiber and method of manufacturing optical fiber | Tetsuya Nakanishi, Masaaki Hirano, Maki Ikeji | 2014-12-09 |
| 8839646 | Method for producing optical fiber preform | Masaaki Hirano, Yoshiaki Tamura | 2014-09-23 |
| 8731357 | Optical fiber | Masaaki Hirano, Yoshiaki Tamura, Yoshinori Yamamoto | 2014-05-20 |
| 8676014 | Optical fiber and method of manufacturing optical fiber | Tetsuya Nakanishi, Masaaki Hirano, Maki Ikechi | 2014-03-18 |
| 8381549 | Optical fiber preform fabricating method | Tetsuya Nakanishi, Shinji Ishikawa | 2013-02-26 |