Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5147728 | Ag-SnO.sub.2 electrical contact materials | Seiichi Tanaka, Teruo Hirata | 1992-09-15 |
| 5102480 | Ag-SnO-CdO electrical contact materials and manufacturing method thereof | Seiichi Tanaka, Teruo Hirata | 1992-04-07 |
| 5078810 | Method of making Ag-SnO contact materials by high pressure internal oxidation | Seiichi Tanaka, Teruo Hirata | 1992-01-07 |
| 4981533 | Internal-oxidation method of electrical contact materials and the materials produced thereby | — | 1991-01-01 |