Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6432157 | Method for preparing Ag-ZnO electric contact material and electric contact material produced thereby | Tetsuya Nakamura, Osamu Sakaguchi, Osamu Matsuzawa, Masahiro Takahashi, Toshiya Yamamoto | 2002-08-13 |