Issued Patents 2022
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11512370 | Free-cutting copper alloy and method for producing free-cutting copper alloy | Keiichiro Oishi, Hiroki Goto | 2022-11-29 |
| 11479834 | Free-cutting copper alloy and method for manufacturing free-cutting copper alloy | Keiichiro Oishi, Hiroki Goto | 2022-10-25 |
| 11434548 | Free-cutting copper alloy and method for producing free-cutting copper alloy | Keiichiro Oishi, Shinji Tanaka, Takayuki Oka | 2022-09-06 |
| 11421301 | Free-cutting copper alloy casting and method for producing free-cutting copper alloy casting | Keiichiro Oishi, Shinji Tanaka, Yoshiyuki Goto | 2022-08-23 |
| 11421302 | Free-cutting copper alloy and method for producing free-cutting copper alloy | Keiichiro Oishi, Hiroki Goto, Shinji Tanaka | 2022-08-23 |
| 11313013 | Free-cutting copper alloy and method for producing free-cutting copper alloy | Keiichiro Oishi, Shinji Tanaka, Yoshiyuki Goto | 2022-04-26 |