Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11421301 | Free-cutting copper alloy casting and method for producing free-cutting copper alloy casting | Keiichiro Oishi, Kouichi Suzaki, Shinji Tanaka | 2022-08-23 |
| 11313013 | Free-cutting copper alloy and method for producing free-cutting copper alloy | Keiichiro Oishi, Kouichi Suzaki, Shinji Tanaka | 2022-04-26 |