Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Jun-Han
Jun-Han Kang, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090105066 | Catalyst for hydrocarbon steam cracking, method of preparing the same and method of preparing olefin by using the same - The present invention relates to a catalyst for hydrocarbon steam cracking for the production of light olefin, a preparation method of the catalyst and a preparation method of olefin by using the same. More precisely, the present invention relates to a composite catalyst prepared by mixing the oxide catalyst powder represented by CrZrjAkOx (0.5≦j≦120, 0≦k≦50, A is a transition metal, x is the number satisfying the condition according to valences of Cr, Zr and A, and values of j and k) and carrier powder and sintering thereof, a composite catalyst wherein the oxide catalyst is impregnated on a carrier, and a method of preparing light olefin such as ethylene and propylene by hydrocarbon steam cracking in the presence of the composite catalyst. The composite catalyst of the present invention has excellent thermal/mechanical stability in the cracking process, and has less inactivation rate by coke and significantly increases light olefin yield. | 04-23-2009 |
Jun-Han Kang, Yuseong-Gu KR
| Patent application number | Description | Published |
|---|---|---|
| 20110172483 | OXIDE CATALYST AND PHOSPHORIC OXIDE CATALYST FOR HYDROCARBON STEAM CRACKING, METHOD FOR PREPARING THE SAME AND METHOD FOR PREPARING OLEFIN BY USING THE SAME - The present invention relates to an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking, method for preparing the same and a method for preparing olefin by using the same. More precisely, the present invention relates to an oxide catalyst for hydrocarbon steam cracking represented by formula 1 and a phosphoric oxide catalyst for hydrocarbon steam cracking represented by formula 3 which would be used for the production of olefin such as ethylene and propylene by hydrocarbon steam cracking, and a method for preparing the same. The present invention provides an oxide catalyst and a phosphoric oxide catalyst for hydrocarbon steam cracking that has excellent thermo-stability at high temperature and improved olefin yield. | 07-14-2011 |
Jun-Han Kim, Daejeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100105551 | ABSORBENTS FOR SEPARATING ACIDIC GASES - An absorbent for separating acidic gases is disclosed. The absorbent or an absorbent composition for separating acidic gases has more than 3 kinds of compounds along with Chemical Formula 1 and 2, and has ability of rapid carbon dioxide elimination, excellent absorption ability, and less energy consumption for regenerating an absorbent due to easy desorption of carbon dioxide. | 04-29-2010 |
Jun-Han Lin, Tu-Cheng TW
| Patent application number | Description | Published |
|---|---|---|
| 20090195156 | FLASH UNIT - A flash unit for an image capturing device includes a noble gas-filled flash tube and two electrical terminals. The outer surface of the flash tube includes a light-transmissive portion and a light-reflective portion. The two electrical terminals protrude outwards from the two opposite ends of the flash tube respectively for allowing application of a high voltage pulse to the noble gas for creating a flash of light. | 08-06-2009 |
| 20100020526 | FLASH UNIT - A flash unit for an image capturing device includes a main body and a flash tube. The main body has a light emitting surface, a light reflecting surface, and two opposite end surfaces. The light reflecting surface is formed with a light-reflective film. The main body is made of transparent material and defines a through hole running through the two end surfaces. The flash tube is received in the through hole. | 01-28-2010 |
| 20100061075 | FLASH ASSEMBLY - A flash assembly includes a circuit board unit, a flash unit, and a housing. The circuit board unit includes a circuit board and two connecting members electrically disposed on the circuit board. Each connecting member defines a gap. The flash unit includes a reflector and a flash tube received in the reflector and electrically connected to the reflector. The flash tube includes two power electrodes received in the corresponding gaps and electrically connected to the circuit board by the connecting members. The flash unit and the circuit board unit are received in the housing. | 03-11-2010 |
Jun-Han Shin, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090256473 | BIPYRIDINE-BASED COMPOUND AND ORGANIC LIGHT EMITTING DIODE EMPLOYING ORGANIC LAYER COMPRISING THE SAME - The invention is directed to bipyridine-based compound and organic light emitting diodes (OLED) including organic layers having the bipyridine-based compound. OLEDs including organic layers having the bipyridine-based compounds can have low driving voltages, high current densities, high efficiencies and long lifetimes. | 10-15-2009 |