Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5496780 | Method for producing silica brick | Kenji Ichikawa, Teiichi Fujiwara, Masashi Taniguchi | 1996-03-05 |
| 5310708 | Method of producing silica brick | Shushi Akahori | 1994-05-10 |