Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807823 | Fluorine-containing glass | Yuichi Ohga | 2004-10-26 |
| 6785444 | Optical fiber grating device | Shinji Ishikawa, Masakazu Shigehara, Michiko Takushima | 2004-08-31 |
| 6725690 | Burner for synthesizing glass particles and method for producing porous glass body | Yuichi Ohga, Nobuya Akaike, Haruhiko Aikawa, Takashi Matsuo, Motonori Nakamura | 2004-04-27 |