Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846838 | Prosthetic body for bone substitute and a method for the preparation thereof | Nobuharu Takai, Hiroyasu Noma, Shoichi Wakabayashi | 1989-07-11 |
| 4804585 | Concrete reinforcing steel fibers and a method of manufacturing the same | Yoshio Tani, Kazuo Kamei | 1989-02-14 |