Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6173687 | Hydraulic apparatus for adjusting the timing of opening and closing of an engine valve | Katsuyuki Fukuhara, Masafumi Sugawara, Makoto Yamauchi | 2001-01-16 |
| 5957098 | Hydraulic valve timing adjusting apparatus | Katsuyuki Fukuhara, Masafumi Sugawara, Makoto Yamauchi | 1999-09-28 |