Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8945669 | Extrusion material supply device and optical transmission body manufacturing method using the same | Hirotsugu Yoshida, Yasuhiro Koike | 2015-02-03 |
| 8611714 | Optical fiber and method for manufacturing same | Hirotsugu Yoshida, Ryosuke Nakao, Hiroka Inabe, Yuki Masabe, Masato Aoyama +1 more | 2013-12-17 |
| 8600210 | GI type optical fiber and method for manufacturing same | Hirotsugu Yoshida, Ryosuke Nakao, Hiroka Inabe, Yuki Masabe, Yasuhiro Koike | 2013-12-03 |