Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9983352 | Optical fiber having a cladding layer doped with metal nano-particles, coreless optical fiber, and method for manufacturing same | Seongmin Ju | 2018-05-29 |
| 9618777 | All-fiber isolator using optical fiber including quantum dots | Seong Min Ju, Young Woong Kim, Pramod Watekar, Seong Mook Jeong | 2017-04-11 |
| 9523813 | Optical fiber having a cladding layer doped with metal nano-particles, coreless optical fiber, and method for manufacturing same | Seongmin Ju | 2016-12-20 |
| 9352169 | Medical mask device which uses optical fibers | Seong Jae Boo, Hye Jeong Jeong, Seong Min Ju | 2016-05-31 |
| 8418504 | Method of fabricating optical fiber or optical device doped with reduced metal ion and/or rare earth ion | Yune-Hyoun Kim, Tae-Jung Ahn | 2013-04-16 |
| 8081854 | Low bend loss optical fiber | Young-Sik Yoon, Yeong-Seop Lee, Jin Han Kim, Seong-Min Joo, Dea-Hwan OH | 2011-12-20 |
| 7844189 | Phase controllable optical delay interferometer, optical differential phase shift keying demodulator using the same, and demodulating method therefor | Chang-Soo Park, Tae-Young Kim, Masanori Hanawa, Sun Jong KIM, Swook Hann | 2010-11-30 |
| 6898357 | Method of fabricating an optical fiber preform using MCVD and nonlinear optical fiber fabricated using the method | Jung S. Cho | 2005-05-24 |
| 6757473 | Optical fiber and planar waveguide for achieving a substantially uniform optical attenuation | Jin-Haing Kim | 2004-06-29 |
| 6441893 | Measurement method of resonant nonlinearity in a nonlinear optical fiber using a long period fiber grating pair | Yune-Hyoun Kim | 2002-08-27 |