Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11345641 | Alumina fibers, alumina fiber aggregate, and retaining material for use in exhaust gas purification device | Yasutaka Oshima, Hiroyuki Ohashi, Koichi Fuji, Yosuke Goto | 2022-05-31 |
| 11319250 | Alumina fibers, alumina fiber aggregate, and retaining material for use in exhaust gas purification device | Yasutaka Oshima, Hiroyuki Ohashi | 2022-05-03 |