Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6729162 | Electric furnace extension method and extension apparatus for optical fiber glass preform | Tetsuro Wada, Masahide Kuwabara | 2004-05-04 |
| 6279353 | Electric furnace extension method and extension apparatus for optical fiber glass preform | Tetsuro Wada, Masahide Kuwabara | 2001-08-28 |
| 6012305 | Apparatus for producing an optical fiber porous glass preform | Masahide Kuwabara, Tetsuro Wada | 2000-01-11 |
| 6003342 | Apparatus for production of optical fiber preform | Yoshinori Ishida, Toshihiro Mikami | 1999-12-21 |
| 5449408 | Optical fiber coating apparatus and positioning method thereof | Hisashi Koaizawa, Nobuaki Orita | 1995-09-12 |
| 5383946 | Optical fiber production method and production apparatus thereof | Yasuhiro Naka | 1995-01-24 |