Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6845636 | Apparatus for dehydrating and consolidating an optical fiber preform and method of the same | Takashi Yamazaki, Yuichi Ohga, Tadashi Enomoto | 2005-01-25 |
| 6301936 | Apparatus for manufacturing porous glass preform | Yuichi Ohga | 2001-10-16 |
| 5695880 | Lead-containing fluoride glass, optical fiber and process for producing it | Hiroo Kanamori, Masashi Onishi, Yoshiaki Miyajima, Masataka Nakazawa | 1997-12-09 |
| 5432131 | Lead-containing fluoride glass, optical fiber and process for producing it | Hiroo Kanamori, Masashi Onishi, Yoshiaki Miyajima, Masataka Nakazawa | 1995-07-11 |
| 5125066 | Fiber optical amplifier | Yoichi Ishiguro, Masaharu Ooe, Yutaka Katsuyama | 1992-06-23 |