Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857414 | Amorphous metal-metal composite article and a method for producing the same | Masatada Araki, Yukihisa Takeuchi, Makoto Takagi, Yoshihito Kawamura, Toru Imura | 1989-08-15 |
| 4837089 | High hardness composite sintered compact | Masatada Araki | 1989-06-06 |