Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6881693 | Zirconia-containing inorganic fiber and process for the production thereof | Hiroyuki Yamaoka, Yoshikatsu Harada | 2005-04-19 |
| 6541416 | Silica-group composite oxide fiber and process for the production thereof | Toshihiro Ishikawa, Yoshikatu Harada, Shinji Kajii | 2003-04-01 |