Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11814712 | Free-cutting copper alloy and method for producing free-cutting copper alloy | Keiichiro Oishi, Hiroki Goto | 2023-11-14 |
| 11788173 | Free-cutting copper alloy, and manufacturing method of free-cutting copper alloy | Keiichiro Oishi, Hiroki Goto | 2023-10-17 |
| 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 |
| 11155909 | High-strength free-cutting copper alloy and method for producing high-strength free-cutting copper alloy | Keiichiro Oishi, Hiroki Goto | 2021-10-26 |
| 11136648 | Free-cutting copper alloy, and method for producing free-cutting copper alloy | Keiichiro Oishi, Shinji Tanaka, Yoshiyuki Goto | 2021-10-05 |
| 11131009 | High-strength free-cutting copper alloy and method for producing high-strength free-cutting copper alloy | Keiichiro Oishi, Hiroki Goto | 2021-09-28 |
| 10557185 | Free-cutting copper alloy, and method for producing free-cutting copper alloy | Keiichiro Oishi, Shinji Tanaka, Takayuki Oka | 2020-02-11 |
| 10538827 | Free-cutting copper alloy casting, and method for producing free-cutting copper alloy casting | Keiichiro Oishi, Shinji Tanaka, Yoshiyuki Goto | 2020-01-21 |
| 10538828 | Free-cutting copper alloy, and method for producing free-cutting copper alloy | Keiichiro Oishi, Shinji Tanaka, Takayuki Oka | 2020-01-21 |
| 9121086 | Copper alloy sheet and method for manufacturing copper alloy sheet | Keiichiro Oishi | 2015-09-01 |
| 9080228 | Copper alloy sheet and method for manufacturing copper alloy sheet | Keiichiro Oishi | 2015-07-14 |