Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335306 | Ultraviolet resistant silica glass fiber | Hiroyuki Hayami, Koichi Suzuki | 1994-08-02 |
| 5302556 | Synthetic silica glass articles and a method for manufacturing them | Takaaki Shimizu | 1994-04-12 |