Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869858 | Processes for producing polysiloxazanes and silicon oxynitride fibers | Osamu Funayama, Mikiro Arai, Takeshi Isoda | 1989-09-26 |
| 4818611 | High-purity silicon nitride fibers | Mikiro Arai, Osamu Funayama, Takeshi Isoda | 1989-04-04 |