Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10766842 | Anhydrosugar alcohol composition having enhanced storage stability, and anhydrosugar alcohol storage method | Hoon Ryu, Seung Hyun YOO, Hyun Seung Lee, Jun Seop IM | 2020-09-08 |
| 9672915 | Storage device using power state information and operating method thereof | Hyunchul Park, Se-wook Na, Durina Park | 2017-06-06 |
| 9527861 | Production method for anhydro sugar alcohol having markedly reduced ion content and improved colour characteristics | Jin Kyung Kim, Do Hyun Kyung, Hoon Ryu | 2016-12-27 |
| 9505777 | Method for preparing anhydrous sugar alcohol | Hoon Ryu, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho | 2016-11-29 |
| 9399212 | Method for producing anhydrosugar alcohol through continuous dehydration reaction of hydrogenated sugar | Hoon Ryu, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho | 2016-07-26 |
| 9299542 | Method of monitoring a manufacturing-process and manufacturing-process monitoring device | — | 2016-03-29 |
| 9290508 | Method for preparing high purity anhydrosugar alcohols by thin film distillation | Do Hyun Kyung, Jin Kyung Kim, Hoon Ryu | 2016-03-22 |
| 9260447 | Method for preparing high-purity anhydrosugar alcohol having improved yield by using waste from crystallization step | Hoon Ryu, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho | 2016-02-16 |
| 9183950 | Memory card | Yun-Bo Yang, Kui-Hyun Ro, Sung-Eun Yun | 2015-11-10 |
| 9169180 | Method for preparing an anhydrosugar alcohol using hydrol | Hoon Ryu, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho | 2015-10-27 |
| 9169263 | Method for preparing high-purity anhydrosugar alcohol using sequential combination of thin film distillation and short path distillation | Hoon Ryu, Jin Kyung Kim, Do Hyun Kyung, Hyuk Min Park, Seong Ho Cho | 2015-10-27 |
| 9029578 | Method for preparation of anhydrosugar alcohols | Hoon Ryu, Young Seok Kim | 2015-05-12 |
| 9015459 | Method of initializing operation of a memory system | — | 2015-04-21 |
| 9000789 | Method and equipment for testing semiconductor apparatuses simultaneously and continuously | Eun Sik Kim, Kil-yeon Kim, Yun-Bo Yang, Kui-Hyun Ro, Heon Lee | 2015-04-07 |
| 8769353 | Memory card | Yun-Bo Yang, Kui-Hyun Ro, Sung-Eun Yun | 2014-07-01 |
| 7576662 | Keypad array of portable terminal for input of alphabetic letters | Hong-Jae Jung | 2009-08-18 |
| 7309655 | Etching method in a semiconductor processing and etching system for performing the same | — | 2007-12-18 |
| 7176139 | Etching method in a semiconductor processing and etching system for performing the same | — | 2007-02-13 |