Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10921357 | Method and apparatus for measuring resistance of light emitting diode | Dong Pyo Han, Dong Soo Shin | 2021-02-16 |
| 10663774 | Optical transmission module, optical transceiver, and optical communication system including same | Dong Soo Shin, Won-Jin Choi | 2020-05-26 |
| 10451905 | Optical transmission module, optical transceiver, and optical communication system including same | Dong Soo Shin, Won-Jin Choi | 2019-10-22 |
| 9945898 | Method and device for measuring internal quantum efficiency of an optical element | Dong Pyo Han, Hyun Don Jung | 2018-04-17 |
| 9337383 | Light emitting device | Dae Seob Han, Yong Tae Moon | 2016-05-10 |
| 8946762 | Light emitting diode and light emitting diode package | Jongbae Kim, Hyunsung Kim, Il Gyun CHOI | 2015-02-03 |
| 8600705 | Method and apparatus for measuring internal quantum well efficiency of LED | Hyunsung Kim | 2013-12-03 |
| 7693200 | Semiconductor laser diode having ridge | Jung Hye Chae, Kyoung-ho Ha, Kyu-sang Kim, Han-youl Ryu | 2010-04-06 |
| 7369588 | Broad-band optical semiconductor device and a method for manufacturing the same | Seong-Taek Hwang, Dae-Kwang Jung | 2008-05-06 |
| 6771681 | Distributed feedback semiconductor laser | Dong-Soo Bang, Dong-Hoon Jang | 2004-08-03 |
| 5614436 | Multiple quantum well distributed feedback semiconductor laser device and method for fabricating the same | Mitsuhiro Kitamura | 1997-03-25 |
| 5450437 | Multiple quantum well distributed feedback semiconductor laser device and method for fabricating the same | Mitsuhiro Kitamura | 1995-09-12 |