Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6482276 | Copper alloy with punchability, and a manufacturing method thereof | Takao Hirai, Takayuki Usami | 2002-11-19 |
| 5021105 | Copper alloy for electronic instruments | Makoto Asai, Tohru Tanigawa, Shigeo Shinozaki, Shoji Shiga | 1991-06-04 |