Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6527879 | Self-lubricating piston ring material for internal combustion engine and piston ring | Kunichika Kubota, Takehiro Ohno | 2003-03-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6527879 | Self-lubricating piston ring material for internal combustion engine and piston ring | Kunichika Kubota, Takehiro Ohno | 2003-03-04 |