Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352259 | Method of manufacturing optical fiber preform | Masato Oku, Noritsugu Enomoto, Tsuguo Sato, Kazuaki Yoshida, Takayuki Morikawa +1 more | 1994-10-04 |
| 5244485 | Method of manufacturing a silica glass preform | Masato Oku, Takeshi Yagi, Noritsugu Enomoto, Tsuguo Sato, Kazuaki Yoshida +1 more | 1993-09-14 |
| 5185020 | Method for manufacturing a silica-base material for optical fiber | Tsuguo Satoh, Takayuki Morikawa, Takeshi Yagi, Kazuaki Yoshida | 1993-02-09 |
| 5169421 | Method of manufacturing silica glass optical waveguide preform | Takeshi Yagi, Tsuguo Satoh, Takayuki Morikawa, Kazuaki Yoshida | 1992-12-08 |