Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6560996 | Vacuum degassing apparatus for molten glass | Yusuke Takei, Michito Sasaki, Yasuharu Hirabara, Atsushi Tanigaki, Mitsuo Sugimoto | 2003-05-13 |
| 6334336 | Vacuum degassing apparatus for molten glass and method for building it | Yusuke Takei, Michito Sasaki, Masataka Matsuwaki, Atsushi Tanigaki, Mitsuo Sugimoto | 2002-01-01 |
| 6308534 | Vacuum degassing apparatus for molten glass | Yusuke Takei, Michito Sasaki, Yasuharu Hirabara, Atsushi Tanigaki, Mitsuo Sugimoto | 2001-10-30 |
| 6294005 | Vacuum gas releasing system | Kazuhiko Ishimura, Yusuke Takei, Kosei Uchino | 2001-09-25 |
| 6202445 | Vacuum degassing apparatus for molten glass and method to rise vacuum degassing apparatus temperature | Mitsuo Sugimoto, Takashi Iketani, Hiroshi Kurata, Yasuharu Hirabara | 2001-03-20 |