Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449180 | World wide power supply apparatus that includes a relay switch voltage doubling circuit | Joon-hyun Yang | 2002-09-10 |
YF
Yosiyaki Fukura
Overall (All Time): #3,557,181 of 4,157,543Top 90%
1
Patents All Time