Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11358126 | Pt—N—C based electrochemical catalyst for chlorine evolution reaction and production method thereof | Tae Jung Lim | 2022-06-14 |
| 9859880 | Delay cell and delay line having the same | Kwan-Yeob Chae, Sang-Hune Park, Jong-Ryun Choi, Hoon-Koo Lee | 2018-01-02 |
| 9806348 | Self-supported catalyst and method for manufacturing the same | Jae Yeong Cheon | 2017-10-31 |
| 8415072 | Membrane electrode assembly for fuel cell | Jung-Min Oh, Hae-kyoung Kim, Ji-rae Kim, Joon Hee Kim, Yoon-hoi Lee | 2013-04-09 |
| 8375718 | Apparatus for generating energy using a sensible heat during manufacturing of molten iron and method for generating energy using the same | Myoung-Kyun Shin, Sang Hyun Kim, Min Chul Park, Robert Millner | 2013-02-19 |
| 8043595 | Mesoporous carbon including heteroatom, manufacturing method thereof, and fuel cell using the mesoporous carbon | Chan-ho Pak, Hyuk Chang, Ji-man Kim, Hyung-ik Lee | 2011-10-25 |
| 7994088 | Supported catalyst, method of preparing the same, and fuel cell using the same | Chan-ho Pak, Dae-jong Yoo, Hyuk Chang, Seol-ah Lee | 2011-08-09 |
| 7994835 | Duty control circuit and semiconductor device having the same | Kwan-Yeob Chae, Su Ho Kim, Won Young Lee, Dharmendra Pandit, Jong-Ryun Choi | 2011-08-09 |
| 7915353 | Silica nanocomposite, method of preparing the silica nanocomposite, composite foam and method of preparing the composite foam | Jin-gyu Lee, Myung-dong Cho | 2011-03-29 |
| 7867941 | Sulfur-containing mesoporous carbon, method of manufacturing the same, and fuel cell using the mesoporous carbon | Chan-ho Pak, Hyuk Chang, Ji-man Kim, Hyung-ik Lee | 2011-01-11 |
| 7858019 | Apparatus for manufacturing molten irons by hot compacting fine direct reduced irons | Hoo-Geun Lee, Sung-Kee Shin, Tae-In Kang, Deuk-Chae Kim, Chang-Oh Kang +2 more | 2010-12-28 |
| 7854913 | Mesoporous carbon, method of preparing the same, and fuel cell using the carbon | Chan-ho Pak, Hyuk Chang, Ji-man Kim, Hyung-ik Lee | 2010-12-21 |
| 7842430 | Nanocomposite, nanocomposite electrolyte membrane including the same and fuel cell including the nanocomposite electrolyte membrane | Yeong Suk Choi | 2010-11-30 |
| 7776136 | Apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same | Hoo-Geun Lee, Sung-Kee Shin, Tae-In Kang, Chang-Oh Kang, Kwang Hee Lee +2 more | 2010-08-17 |
| 7776779 | Mesoporous carbon, manufacturing method thereof, and fuel cell using the mesoporous carbon | Chan-ho Pak | 2010-08-17 |
| 7732094 | Mesoporous carbon composite, method of preparing the same, and fuel cell using the mesoporous carbon composite | Chan-ho Pak, Yeong Suk Choi, Hyuk Chang | 2010-06-08 |
| 7670582 | Mesoporous carbon and method of producing the same | Chan-ho Pak, Hyuk Chang, Ji-man Kim, Hyung-ik Lee | 2010-03-02 |
| 7622071 | Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same | Kwang Hee Lee, Sung-Kee Shin, Min Chul Park, Deuk-Chae Kim, Soo-Young Bang +5 more | 2009-11-24 |
| 6585948 | Carbon molecular sieve material with structural regularity, method for preparing the same and use thereof | Ryong Ryoo, Shinae Jun, Chang Hyun Ko | 2003-07-01 |
| 6277324 | Apparatus for manufacturing molten pig iron and reduced iron by utilizing a fluidized bed | Sang Deuk Lee, Myoung-Kyun Shin, Jun Hyuk Lee, Min Young Cho, Hang Goo Kim +1 more | 2001-08-21 |
| 6235080 | Charging device for directly charging reduced fine iron ore into melter-gasifier | Myoung-Kyun Shin | 2001-05-22 |
| 6086653 | Smelting-reduction apparatus and method for producing molten pig iron using the smelting reduction apparatus | Min Young Cho, Il Ock Lee | 2000-07-11 |
| 5989309 | Method for injecting fine iron ore in smelting reducing process | Sang-Deok Lee, Il Ock Lee, Werner Kepplinger, Felix Wallner | 1999-11-23 |
| 5746804 | Apparatus for melting fine particles containing carbon and method for melting such fine particles using the apparatus | Dong Joon Min, Myoung-Kyun Shin | 1998-05-05 |