Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10215365 | Lighting device and method for manufacturing the same | WOOK LEE, Ariyoshi Tetsuo, Ji Hoon Yun, Cheon Ho Park | 2019-02-26 |
| 8956011 | Bulb type semiconductor light-emitting device lamp | Tetsuo Ariyoshi, Cheon Ho Park, Ji Hoon Yun | 2015-02-17 |
| 8814381 | Omnidirectional light emitting device lamp | Tetsuo Ariyoshi, Cheon Ho Park | 2014-08-26 |
| 8801218 | Lighting device capable of emitting light with a wide angle | Tetsuo Ariyoshi, Cheon Ho Park, Ji Hoon Yun | 2014-08-12 |
| 8641231 | Light diffusion lenses and lighting fixtures having the same | Tetsuo Ariyoshi, Choul Ho Lee | 2014-02-04 |
| 7940481 | Zoom lens module | Kyong Rok Kang, Young Min Seo | 2011-05-10 |