Yoon; Yong Gyu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yoon; Yong Gyu.The latest application filed is for "photographic lens optical system".
- Yoon; Yong Gyu - Seoul KR
- Yoon; Yong-gyu - Seongnam-si KR
- Yoon; Yong-Gyu - Kyeongsangnam-do KR
- Yoon; Yong-gyu - Changwon-si KR
| Patent | Date |
|---|---|
| Photographic lens optical system Grant 9,841,581 - Yoon , et al. December 12, 2 | 2017-12-12 |
| Photographic Lens Optical System App 20170184812 - Yoon; Yong Gyu ; et al. | 2017-06-29 |
| Image photographing device Grant 8,995,068 - Baik , et al. March 31, 2 | 2015-03-31 |
| Image Photographing Device App 20120320467 - Baik; Jae Ho ; et al. | 2012-12-20 |
| Apparatus for detecting coordinates of an event within interest region, display device, security device and electronic blackboard including the same App 20110133882 - Jung; Il Mo ; et al. | 2011-06-09 |
| Illumination device for video presenter and video presenter having the same Grant 7,564,499 - Yoon , et al. July 21, 2 | 2009-07-21 |
| Illumination device for video presenter and video presenter having the same App 20060152639 - Yoon; Yong-gyu ; et al. | 2006-07-13 |
| Compact zoom lens system Grant 5,995,299 - Yoon November 30, 1 | 1999-11-30 |
| Two lens group zoom lens system with a high zooming ratio Grant 5,986,821 - Yoon November 16, 1 | 1999-11-16 |
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