Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5056218 | Method of making a hollow metal piston having elastic strip casted to its skirt | Masaaki Kudou | 1991-10-15 |
| 4890543 | Light metal piston for internal combustion engines and method of making the same | Masaaki Kudou | 1990-01-02 |