Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6547960 | Oil separating apparatus for oil containing substance and method therefor | — | 2003-04-15 |
| 4429885 | Spacer and expander member for holding and biasing piston ring rails | Ko Chiba, Yoneo Kawauchi, Yukio Ikeda | 1984-02-07 |