Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812271 | Continuous process for producing long .alpha.-alumina fibers | Keiichiro Koba, Taizo Utsunomiya, Katsusuke Iwanaga, Michihiko Matsue, Noriaki Nishitani | 1989-03-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812271 | Continuous process for producing long .alpha.-alumina fibers | Keiichiro Koba, Taizo Utsunomiya, Katsusuke Iwanaga, Michihiko Matsue, Noriaki Nishitani | 1989-03-14 |