Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11372155 | Optical fiber and method for manufacturing optical fiber | Noriaki IWAGUCHI, Takashi Fujii | 2022-06-28 |
| 11022549 | Optical fiber inspecting device, optical fiber manufacturing apparatus, method for inspecting optical fiber, and method for manufacturing optical fiber | Hiroshi Kohda, Takashi Fujii | 2021-06-01 |
| 10551307 | Optical fiber inspecting device, optical fiber manufacturing apparatus, method for inspecting optical fiber, and method for manufacturing optical fiber | Hiroshi Kohda, Takashi Fujii | 2020-02-04 |
| 10197724 | Optical fiber core and optical fiber ribbon core | Takashi Fujii | 2019-02-05 |
| 9964700 | Optical fiber core and optical fiber tape core | Takashi Fujii, Noriaki IWAGUCHI | 2018-05-08 |
| 9891381 | Coated optical fiber | Noriaki IWAGUCHI, Masuo Iida, Takashi Takada, Takashi Fujii | 2018-02-13 |
| 9632241 | Optical fiber | Noriaki IWAGUCHI, Masuo Iida, Takashi Fujii | 2017-04-25 |
| 9557477 | Coated optical fiber | Takashi Fujii, Takashi Takada, Noriaki IWAGUCHI | 2017-01-31 |
| 9551828 | Optical fiber | Masuo Iida, Takashi Fujii | 2017-01-24 |
| 9169156 | Optical fiber and method for manufacturing the same | Takashi Fujii, Noriaki IWAGUCHI | 2015-10-27 |
| 9134495 | Optical fiber | Takashi Fujii, Takashi Takada, Noriaki IWAGUCHI | 2015-09-15 |
| 9097867 | Coated optical fiber | Takashi Fujii, Takashi Takada, Noriaki IWAGUCHI, Yoshinori Yamamoto | 2015-08-04 |
| 8744226 | Method of manufacturing optical fiber and optical fiber | Tetsuya Nakanishi, Tatsuya Konishi, Takashi Fujii, Takashi Takada | 2014-06-03 |