Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9790822 | Hollow poppet valve | Masaaki Inoue | 2017-10-17 |
| 9611953 | Hollow poppet valve | Naoya Ishihara | 2017-04-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9790822 | Hollow poppet valve | Masaaki Inoue | 2017-10-17 |
| 9611953 | Hollow poppet valve | Naoya Ishihara | 2017-04-04 |