Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11795097 | Method of producing optical fiber preform and optical fiber | Keiichi Aiso | 2023-10-24 |
| 11577984 | Method for manufacturing optical fiber preform, optical fiber preform, method for manufacturing optical fiber, and optical fiber | Mitsuhiro Kawasaki | 2023-02-14 |
| 10676387 | Method of producing optical fiber preform and optical fiber | Keiichi Aiso | 2020-06-09 |
| 9891378 | Cascaded core multicore fiber and manufacturing method for same | Katsunori Imamura, Ryuichi Sugizaki, Taiji SAKAMOTO, Takayoshi Mori, Masaki Wada +2 more | 2018-02-13 |
| 9695079 | Production method of optical fiber preform, and production method of optical fiber | Katsunori Imamura, Ryo Miyabe, Ryuichi Sugizaki | 2017-07-04 |