Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6261198 | Continuously variable transmission | Byung Il Moon, Hyo Keun Oh, We Chool Ra | 2001-07-17 |
| 5525116 | Stepless automatic variable transmission | Jong O. Ra, Joon Y. Lim | 1996-06-11 |
| 5484344 | Stepless automatic variable transmission | Jong O. Ra, Joon Y. Lim | 1996-01-16 |
| 5484349 | Stepless automatic variable transmission | Jong O. Ra, Joon Y. Lim | 1996-01-16 |
| 5466196 | Stepless automatic variable transmission | Jong O. Ra, Joon Y. Lim | 1995-11-14 |
| 5415597 | Stepless automatic variable transmission | Jong O. Ra, Joon Y. Lim | 1995-05-16 |
| 5364320 | Continuously-geared automatic transmission with controlling brakes | Jong O. Ra, Joon Y. Lim | 1994-11-15 |
| 5330395 | Continuously-geared automatic transmission with controlling brakes | Jong O. Ra, Joon Y. Lim | 1994-07-19 |
| 5322488 | Continuously geared automatic transmission with controlling brakes | Jong O. Ra, Joon Y. Lim | 1994-06-21 |