Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7198247 | Mandrel for producing quartz glass and production method for optical fiber mother material, optical fiber and quartz glass body using the same | Atsuyuki Shimada, Toshiharu Hiraoka | 2007-04-03 |