Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10347722 | Artificially engineered III-nitride digital alloy | Wei Sun, Chee Keong Tan | 2019-07-09 |
| 10115859 | Nitride based devices including a symmetrical quantum well active layer having a central low bandgap delta-layer | Hongping Zhao, Guangyu Liu, Gensheng Huang | 2018-10-30 |
| 9525117 | Thermoelectric materials based on single crystal AlInN—GaN grown by metalorganic vapor phase epitaxy | Hua-Ching Tong, Jing Zhang, Guangyu Liu, Gensheng Huang | 2016-12-20 |
| 9349910 | Staggered composition quantum well method and device | Ronald A. Arif, Yik Khoon Ee, Hongping Zhao | 2016-05-24 |
| 8907321 | Nitride based quantum well light-emitting devices having improved current injection efficiency | Hongping Zhao, Guangyu Liu, Ronald A. Arif | 2014-12-09 |
| 8685767 | Surface plasmon dispersion engineering via double-metallic AU/AG layers for nitride light-emitting diodes | Hongping Zhao, Jing Zhang, Guangyu Liu | 2014-04-01 |
| 8659005 | Staggered composition quantum well method and device | Ronald A. Arif, Yik Khoon Ee, Hongping Zhao | 2014-02-25 |
| 8586963 | Semiconductor light-emitting devices having concave microstructures providing improved light extraction efficiency and method for producing same | James F. Gilchrist, Yik Khoon Ee, Pisist Kumnorkaew | 2013-11-19 |
| 8569737 | Broadband light emitting diodes and method for producing same | Xiaohang Li, Hongping Zhao, Guangyu Liu, James F. Gilchrist, Pisist Kumnorkaew | 2013-10-29 |
| 8541252 | Abbreviated epitaxial growth mode (AGM) method for reducing cost and improving quality of LEDs and lasers | Helen M. Chan, Richard P. Vinci, Yik Khoon Ee, Jeffrey Biser | 2013-09-24 |
| 8076667 | Efficient light extraction method and device | Yik Khoon Ee, James F. Gilchrist, Pisit Kumnorkaew, Ronald A. Arif | 2011-12-13 |
| 8030641 | Graded in content gallium nitride-based device and method | Ronald A. Arif, Yik Khoon Ee | 2011-10-04 |
| 7842531 | Gallium nitride-based device and method | Ronald A. Arif, Yik Khoon Ee | 2010-11-30 |
| 7518139 | Gallium nitride-based device and method | Ronald A. Arif, Yik Khoon Ee | 2009-04-14 |
| 7457338 | Quantum well lasers with strained quantum wells and dilute nitride barriers | Luke J. Mawst, Jeng-Ya David Yeh | 2008-11-25 |
| 7256417 | Type II quantum well mid-infrared optoelectronic devices | Luke J. Mawst, Jerry R. Meyer, Igor Vurgaftman | 2007-08-14 |
| 6845116 | Narrow lateral waveguide laser | Luke J. Mawst, Michael P. Nesnidal, Steven Meassick, Eric Stiers, Darren Hansen +1 more | 2005-01-18 |
| 6791104 | Type II quantum well optoelectronic devices | Luke J. Mawst | 2004-09-14 |