Issued Patents All Time
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 | Teruhiro AIKYO, Yasutaka Oshima, Hiroyuki Ohashi, Yosuke Goto | 2022-05-31 |
| 7182999 | Inorganic staple fiber accumulation for holding material, process for producing the same and holding material | Hiroyuki Ohashi, Tomoo Saito | 2007-02-27 |