Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819860 | Optical amplifying glass and optical waveguide | Seiki Ohara, Hideaki Hayashi, Katsuhiro Ochiai, Yasuji Fukasawa, Takeshi Hirose +1 more | 2004-11-16 |
| 6776223 | Heat exchanger having bracket mounted on side plate of core unit | Ryouichi Sanada | 2004-08-17 |