Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9196454 | Micro-column with double aligner | Tae-Sik Oh, Ho Seob Kim, Dae Wook Kim | 2015-11-24 |
| 8835848 | Ultra-miniaturized electron optical microcolumn | Tae-Sik Oh, Ho Seob Kim, Dae Wook Kim | 2014-09-16 |
| 8482331 | Open loop type delay locked loop and method for operating the same | Jong-Chern Lee | 2013-07-09 |
| 8451037 | Duty cycle correction circuit | Jong-Chern Lee | 2013-05-28 |
| 8446197 | Delay locked loop and method for driving the same | Jong-Chern Lee | 2013-05-21 |
| 8242822 | Delay locked loop | Jong-Chern Lee | 2012-08-14 |
| 8233339 | Semiconductor memory device | Hyun-Su Yoon, Jong-Chern Lee | 2012-07-31 |
| 8143925 | Delay locked loop | Jong-Chern Lee | 2012-03-27 |
| 7969220 | Delay circuit | Jong-Chern Lee | 2011-06-28 |
| 7902521 | Method for focusing electron beam in electron column | Ho Seob Kim, Dae Wook Kim, Young Chul Kim | 2011-03-08 |
| 7750295 | Extractor for an microcolumn, an alignment method for an extractor aperture to an electron emitter, and a measuring method and an alignment method using thereof | Ho KIM, Dae Wook Kim | 2010-07-06 |
| 5963805 | Method for forming integrated circuit capacitors including dual layer electrodes | Man-Sug Kang | 1999-10-05 |
| 5854095 | Dual source gas methods for forming integrated circuit capacitor electrodes | Man-Sug Kang, Hyun-bo Shin, Byung Chul Ahn | 1998-12-29 |
| 5666343 | Disk player having a shutter opening structure in which a shutter of the disk cartridge is opened without a cartridge holder | — | 1997-09-09 |