Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9831772 | Resonant converter with synchronous rectifier feedback | Jinho Choi, Young Chul Ryu, Wanfeng Zhang | 2017-11-28 |
| 9692316 | Bleeder method using switch node coupling capacitor for TRIAC dimming of solid state lighting | Young Chul Ryu, Wanfeng Zhang | 2017-06-27 |
| 9179523 | Start-up voltage for solid-state lighting controller | Young Chul Ryu, Jinho Choi, Wanfeng Zhang | 2015-11-03 |
| 6911595 | Charge transfer material, and photoelectric conversion device and photoelectric cell using same, and pyridine compound | Masaru Yoshikawa | 2005-06-28 |
| 6750352 | Polymerizable molten salt monomer, electrolyte composition and electrochemical cell | Michio Ono | 2004-06-15 |
| 6627099 | Electrolyte composition and electrochemical battery using the same | Michio Ono, Koji Wariishi, Takayasu Yasuda | 2003-09-30 |
| 6376765 | Electrolyte composition, photoelectric conversion device and photo-electrochemical cell | Koji Wariishi, Michio Ono | 2002-04-23 |