Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10557185 | Free-cutting copper alloy, and method for producing free-cutting copper alloy | Keiichiro Oishi, Kouichi Suzaki, Shinji Tanaka | 2020-02-11 |
| 10538828 | Free-cutting copper alloy, and method for producing free-cutting copper alloy | Keiichiro Oishi, Kouichi Suzaki, Shinji Tanaka | 2020-01-21 |