Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128209 | Composite gasket material | Ikuo Yamagiwa, Masayuki Aso | 1992-07-07 |
| 4810591 | Metal gasket | — | 1989-03-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5128209 | Composite gasket material | Ikuo Yamagiwa, Masayuki Aso | 1992-07-07 |
| 4810591 | Metal gasket | — | 1989-03-07 |