Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6405564 | Vacuum degassing apparatus for molten glass | Yusuke Takei, Toshiyasu Kawaguchi, Takashi Kijima, Atsushi Tanigaki, Katsuharu Imamaki +2 more | 2002-06-18 |
| 6334336 | Vacuum degassing apparatus for molten glass and method for building it | Yusuke Takei, Michito Sasaki, Shigekuni Inoue, Atsushi Tanigaki, Mitsuo Sugimoto | 2002-01-01 |