Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640589 | Glass base material drawing apparatus and method for drawing glass base material | Mitsukuni Sakashita, Shoji Hoshino, Tadakatsu Shimada, Waichi Yamamura | 2003-11-04 |
| 6546759 | Glass base material manufacturing apparatus with super imposed back-and-forth burner movement | Yuuji Tobisaka, Tadakatsu Shimada, Hiroshi Machida, Masataka Watanabe, Hiroshi Tsumura | 2003-04-15 |
| 6532776 | Method and apparatus for fusing an optical fiber preform | Shinji Suzuki, Tadakatsu Shimada | 2003-03-18 |