Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7172662 | Copper alloy material for parts of electronic and electric machinery and tools | Takayuki Usami | 2007-02-06 |
| 7090732 | High-mechanical strength copper alloy | Takayuki Usami | 2006-08-15 |
| 6893514 | High-mechanical strength copper alloy | Takayuki Usami | 2005-05-17 |
| 6482276 | Copper alloy with punchability, and a manufacturing method thereof | Yoshimasa Ohyama, Takayuki Usami | 2002-11-19 |