Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6470710 | Method for melting glass | Kenji Oda | 2002-10-29 |
| 6405564 | Vacuum degassing apparatus for molten glass | Masataka Matsuwaki, Toshiyasu Kawaguchi, Takashi Kijima, Atsushi Tanigaki, Katsuharu Imamaki +2 more | 2002-06-18 |
| 6406197 | Optical fiber coupler, a process for fabricating the same and an optical amplifier using the same | Michitaka Okuda, Hiromi AJIMA, Hiroshi Fujimoto, Kazuyuki Miyake, Tatsuhiro Kawamura +1 more | 2002-06-18 |
| 6334336 | Vacuum degassing apparatus for molten glass and method for building it | Michito Sasaki, Masataka Matsuwaki, Shigekuni Inoue, Atsushi Tanigaki, Mitsuo Sugimoto | 2002-01-01 |