Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6474108 | Fiber preform method with a hot drill-in step for a Ge-doped tube and an F-doped rod | Masashi Onishi, Masaaki Hirano | 2002-11-05 |
| 6407404 | Apparatus for the examining defect of monolithic substrate and method for examining the same | Shigeru Kawamura | 2002-06-18 |
| 6360046 | Dispersion-shifted optical fiber | Eisuke Sasaoka, Takatoshi Kato, Akira Urano | 2002-03-19 |