公开(公告)号：US6129860A

公开(公告)日：2000-10-10

申请号：US238422

申请日：1999-01-28

申请人： Do Soon Park ,  Ha Kyun Jung

发明人： Do Soon Park ,  Ha Kyun Jung

IPC分类号： C01G19/00 ,  C09K11/08 ,  C09K11/66 ,  C09K11/77 ,  C09K11/00

CPC分类号： C09K11/7746

摘要： The present invention relates to a novel phosphor of green luminescence and more particularly, to the phosphor of green luminescence containing Tb(terbium) as an activator and a perovskite-structure(CaSnO.sub.3) as a host compound, which may emit a luminescent spectrum in the visible range, when excited by electron beam. Since the phosphor of green luminescence of this invention has better emission intensity than the conventional phosphors, it has been widely applicable to the display industry including an electronic display such as cathode-ray tube and field emission display, in spite of the fact the use of Tb, a high-priced rare earth element, is minimized without any sulfur(S) in its chemical composition.

摘要翻译： 本发明涉及绿色发光的新型荧光体，更具体地说，涉及含有Tb（铽）作为活化剂的绿色发光体和作为主体化合物的钙钛矿结构（CaSnO 3）的荧光体，其可以在 当电子束激发时可见光范围。 由于本发明的绿色发光荧光体具有比常规荧光体更好的发光强度，所以广泛应用于包括诸如阴极射线管和场致发射显示器之类的电子显示器的显示器行业，尽管使用 Tb（一种高价稀土元素）在其化学成分中没有任何硫（S）的情况下被最小化。

公开(公告)号：US08398948B2

公开(公告)日：2013-03-19

申请号：US10551484

申请日：2004-03-31

申请人： Beyong-Hwan Ryu ,  Ki-Jeong Kong ,  Hyun-Ju Chang ,  Young-Min Choi ,  Jae-do Lee ,  Ha-Kyun Jung ,  Chang-Gyoun Kim ,  Han-Sung Park

发明人： Beyong-Hwan Ryu ,  Ki-Jeong Kong ,  Hyun-Ju Chang ,  Young-Min Choi ,  Jae-do Lee ,  Ha-Kyun Jung ,  Chang-Gyoun Kim ,  Han-Sung Park

IPC分类号： C01B31/0246 ,  B82Y40/00

CPC分类号： B01J23/74 ,  B01J23/755 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/166 ,  C01B2202/36 ,  D01F9/12 ,  Y02P20/544

摘要： This invention relates to a method to induce growth of carbon nanotubes using a liquid phased-hydrocarbon based material under a critical range of equilibrating between liquid and gas phases, thereby easily manipulating a required carbon source. This invention also relates to a method to facilitate easy generation of a carbon backbone of the carbon nanotube because the reaction is performed in the presence of a metal nanoparticle or a metal compound capable of spontaneously generating a seed catalyst which stimulates the growth of carbon nanotubes as well as secures safety enough for the industrial application by using a mild reaction condition within the critical range. Accordingly, this invention can produce the carbon nanotube with high transition efficiency under a mild condition with a relatively lower temperature and pressure than those in conventional gas phased-methods without using a costly equipment, thereby cost-effectively producing the carbon nanotube in large quantities.

摘要翻译： 本发明涉及在液相和气相之间的平衡临界范围内使用液相烃基材料诱导碳纳米管生长的方法，从而容易地操纵所需的碳源。 本发明还涉及一种促进碳纳米管碳骨架容易生成的方法，因为反应是在能够自发产生刺激碳纳米管生长的种子催化剂的金属纳米颗粒或金属化合物的存在下进行的， 以及通过在临界范围内使用温和的反应条件来确保工业应用的安全性。 因此，本发明可以在没有使用昂贵的设备的情况下，在比常规气相分离方法相对较低的温度和温度的温和条件下生产具有高过渡效率的碳纳米管，从而大量地成本有效地制造碳纳米管。

公开(公告)号：US20070160522A1

公开(公告)日：2007-07-12

申请号：US10551484

申请日：2004-03-31

申请人： Beyong-Hwan Ryu ,  Ki-Jeong Kong ,  Hyun-Ju Chang ,  Young-Min Choi ,  Jae-do Lee ,  Ha-Kyun Jung ,  Chang-Gyoun Kim ,  Han-Sung Park

发明人： Beyong-Hwan Ryu ,  Ki-Jeong Kong ,  Hyun-Ju Chang ,  Young-Min Choi ,  Jae-do Lee ,  Ha-Kyun Jung ,  Chang-Gyoun Kim ,  Han-Sung Park

IPC分类号： D01F9/12

CPC分类号： B01J23/74 ,  B01J23/755 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/166 ,  C01B2202/36 ,  D01F9/12 ,  Y02P20/544

摘要： This invention relates to a method to induce growth of carbon nanotubes using a liquid phased-hydrocarbon based material under a critical range of equilibrating between liquid and gas phases, thereby easily manipulating a required carbon source. This invention also relates to a method to facilitate easy generation of a carbon backbone of the carbon nanotube because the reaction is performed in the presence of a metal nanoparticle or a metal compound capable of spontaneously generating a seed catalyst which stimulates the growth of carbon nanotubes as well as secures safety enough for the industrial application by using a mild reaction condition within the critical range. Accordingly, this invention can produce the carbon nanotube with high transition efficiency under a mild condition with a relatively lower temperature and pressure than those in conventional gas phased-methods without using a costly equipment, thereby cost-effectively producing the carbon nanotube in large quantities.

摘要翻译： 本发明涉及在液相和气相之间的平衡临界范围内使用液相烃基材料诱导碳纳米管生长的方法，从而容易地操纵所需的碳源。 本发明还涉及一种促进碳纳米管碳骨架容易生成的方法，因为反应是在能够自发产生刺激碳纳米管生长的种子催化剂的金属纳米颗粒或金属化合物的存在下进行的， 以及通过在临界范围内使用温和的反应条件来确保工业应用的安全性。 因此，本发明可以在没有使用昂贵的设备的情况下，在比常规气相分离方法相对较低的温度和温度的温和条件下生产具有高过渡效率的碳纳米管，从而大量地成本有效地制造碳纳米管。

公开(公告)号：US06716369B1

公开(公告)日：2004-04-06

申请号：US09979314

申请日：2002-02-20

申请人： Ha-Kyun Jung ,  Bu Young Sung ,  Hee Dong Park

发明人： Ha-Kyun Jung ,  Bu Young Sung ,  Hee Dong Park

IPC分类号： C09K1154

CPC分类号： C09K11/595 ,  C09K11/646

摘要： This invention relates to a process for preparing a spherical green-emitting phosphor based on zinc orthosilicate and more particularly, to the process for a zinc orthosilicate-based green-emitting phosphor demonstrating an emission spectrum at visible regions, when excited by electron beam, via a new application of ‘the homogeneous precipitation method’ comprising the following steps such as i) a solution of tetraethylorthosilicate (TEOS) diluted in ethanol is hydrolyzed to obtain a hydrated silica, ii) said hydrated silica is dispersed together with the solution containing zinc and manganese components, iii) a precipitant selected from oxalic acid and oxalates is added to said dispersed solution together with a basic solution, while precipitating zinc and manganese components, iv) said admixture precipitate, so filtered off and dried, is calcined in the air and reheated under the reducing atmosphere to generate a phosphor powder; hence, the above-described phosphor particle is quite effective in a variety of display fields of industry including PDP, since it has a spherical shape with less agglomeration and homogeneous distribution of manganese, an activator, thus proving superior to the conventional phosphor prepared by the solid state reaction method in terms of brightness.

摘要翻译： 本发明涉及一种制备基于原硅酸锌的球形绿色荧光体的方法，更具体地说，本发明涉及一种在电子束激发时通过可见光区域发射的基于原硅酸锌的绿色发光荧光体的发光光谱的方法， “均相沉淀法”的新应用包括以下步骤：i）将在乙醇中稀释的原硅酸四乙酯溶液（TEOS）水解，得到水合二氧化硅，ii）所述水合二氧化硅与含锌溶液和 锰组分，iii）将草酸和草酸盐的沉淀剂与碱性溶液一起加入到所述分散溶液中，同时沉淀锌和锰组分，iv）将所述混合物沉淀物滤出并干燥，在空气中煅烧， 在还原气氛下再加热，生成荧光粉; 因此，上述荧光体颗粒在包括PDP的工业的各种显示领域中是非常有效的，因为它具有较少的聚集和均匀分布的锰，活化剂的球形，因此证明优于由 固态反应方法在亮度方面。