Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7650764 | Vacuum degassing apparatus for molten glass | Mitsuyoshi Sakai, Michito Sasaki, Hajime Itoh, Rei Kitamura | 2010-01-26 |
| 7007514 | Vacuum degassing apparatus for molten glass | Mitsuyoshi Sakai, Michito Sasaki, Hajime Itoh, Rei Kitamura | 2006-03-07 |
| 6939125 | Method for reducing nitrogen oxides in combustion gas from combustion furnace | Masamichi Yokotani, Yutaka Ishikawa, Daisuke Hasegawa, Shinji Morohashi | 2005-09-06 |
| 6560996 | Vacuum degassing apparatus for molten glass | Yusuke Takei, Shigekuni Inoue, Michito Sasaki, Yasuharu Hirabara, Mitsuo Sugimoto | 2003-05-13 |
| 6405564 | Vacuum degassing apparatus for molten glass | Yusuke Takei, Masataka Matsuwaki, Toshiyasu Kawaguchi, Takashi Kijima, Katsuharu Imamaki +2 more | 2002-06-18 |
| 6334336 | Vacuum degassing apparatus for molten glass and method for building it | Yusuke Takei, Michito Sasaki, Masataka Matsuwaki, Shigekuni Inoue, Mitsuo Sugimoto | 2002-01-01 |
| 6318126 | Vacuum degassing method for molten glass | Yusuke Takei, Masataka Matsuwaki, Michito Sasaki, Takashi Kijima | 2001-11-20 |
| 6308534 | Vacuum degassing apparatus for molten glass | Yusuke Takei, Shigekuni Inoue, Michito Sasaki, Yasuharu Hirabara, Mitsuo Sugimoto | 2001-10-30 |
| 6119484 | Vacuum degassing apparatus for molten glass | Yusuke Takei, Masataka Matsuwaki, Toshiyasu Kawaguchi, Takashi Kijima, Katsuharu Imamaki +2 more | 2000-09-19 |