Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6484540 | Method for welding a quartz glass tube for use as an optical fiber preform | Toshiyuki Kato, Masanori Suzuki, Yutaka Watabe | 2002-11-26 |
| 6425270 | Rod in tube method of forming a fiber preform, with maintaining a gas supply until after an end is stretched | Masanori Suzuki, Toshiyuki Kato, Yutaka Watabe | 2002-07-30 |