Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352259 | Method of manufacturing optical fiber preform | Masato Oku, Noritsugu Enomoto, Hiroshi Hihara, Tsuguo Sato, Takayuki Morikawa +1 more | 1994-10-04 |
| 5318432 | Apparatus for forming porous preform used to fabricate optical fiber | Takeshi Yagi, Tsuguo Satou, Yoshiaki Koinuma | 1994-06-07 |
| 5314520 | Method for manufacturing optical fiber preform | Takeshi Yagi, Tsuguo Satoh, Yoshiaki Koinuma | 1994-05-24 |
| 5310633 | Bleach-fixing composition for color photographic material and method for processing a color photographic material with the same | Takatoshi Ishikawa | 1994-05-10 |