公开(公告)号：US20020127351A1

公开(公告)日：2002-09-12

申请号：US10094622

申请日：2002-03-12

Applicant: Futaba Corporation

Inventor： Hirofumi Takikawa ,  Yoshihiko Hibi ,  Shigeo Itoh

IPC: H05H001/24 ,  B05D001/32

CPC classification number: B82Y30/00 ,  B01J19/088 ,  B01J2219/082 ,  B01J2219/0839 ,  B01J2219/0869 ,  B01J2219/0875 ,  B01J2219/0879 ,  B01J2219/0892 ,  B01J2219/0894 ,  B82Y10/00 ,  B82Y40/00 ,  C01B32/152 ,  C01B32/162 ,  C01B2202/02 ,  H01J37/32055 ,  H01J2201/30469 ,  H01J2209/022 ,  H05H1/48 ,  H05H2001/483 ,  H05H2245/124 ,  Y10S977/844 ,  Y10T428/30

Abstract: There are provided a method of preparing nano-carbon comprising evaporating a material to be arced containing carbon as a main component by means of arc discharge which does not necessarily require a process container and so on, but uses an apparatus having a welding arc torch or an analogous structure to generate soot, a method of preparing an electron emitting source by supporting the soot, and an apparatus for preparing the same. A torch electrode 10 of an arc torch 1 as a first electrode is placed opposite to a material to be arced 2 using graphite as a second electrode. A voltage is applied between the torch electrode 10 and an edge portion of the material to be arced 2 to generate arc discharge, to evaporate the edge portion of the material to be arced 2 exposed to the arc discharge, to generate soot. The soot thus generated is deposited on the surface of a substrate opposite to an arc discharge-generating area through a mask having a patterned opening.

Abstract translation: 提供了一种制备纳米碳的方法，其包括通过不需要处理容器等的电弧放电蒸发含有作为主要成分的碳的待煅烧材料，但是使用具有焊接电弧焊炬或 用于产生烟灰的类似结构，通过支持烟灰制备电子发射源的方法及其制备装置。 作为第一电极的电弧焊炬1的焊炬电极10与使用石墨作为第二电极的待弧焊材料2相对放置。 在焊炬电极10和待弧形材料2的边缘部分之间施加电压以产生电弧放电，以使待暴露于电弧放电的待蚀刻材料的边缘部分蒸发，以产生烟灰。 这样生成的烟炱通过具有图案化开口的掩模沉积在与电弧放电产生区域相对的基板的表面上。

公开(公告)号：US20040160157A1

公开(公告)日：2004-08-19

申请号：US10780714

申请日：2004-02-19

Applicant: Futaba Corporation

Inventor： Hirofumi Takikawa ,  Youhei Fujimura ,  Shigeo Itoh

IPC: H01K001/04 ,  H01J001/14 ,  H01J019/06

CPC classification number: B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01P2002/85 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  H01J1/3044 ,  H01J9/025 ,  H01J2201/30446 ,  Y10S977/949

Abstract: A carbon substance comprises a structure and line-shaped bodies, the structure having a size ranging from about 1 nullm to about 100 nullm and including carbon and a metal or a metallic oxide, and the line-shaped bodies having diameters smaller than about 200 nm and including carbon as a main component thereof and growing radially from a surface of the structure. A method for manufacturing the carbon substance uses a thermal decomposition of a source gas containing carbon in the vicinity of a catalyst, wherein the catalyst comprises a first and a second materials, the first material being Ni or a Ni oxide and the second material being In or an In oxide; and the thermal decomposition is performed at a temperature ranging from about 675null C. to about 750null C. An electron emission element uses the carbon substance as an electron emission material. A composite material includes the carbon substance in its matrix.

Abstract translation: 碳物质包括结构和线状体，该结构的尺寸范围为约1μm至约100μm，并且包括碳和金属或金属氧化物，并且直径小于约200nm的线状体 并且包括碳作为其主要成分并且从结构的表面径向生长。 制造碳物质的方法使用在催化剂附近含有碳原子气体的热分解，其中催化剂包含第一和第二材料，第一材料为Ni或Ni氧化物，第二材料为In 或In氧化物; 并且热分解在约675℃至约750℃的温度下进行。电子发射元件使用碳物质作为电子发射材料。 复合材料包括其基质中的碳物质。

公开(公告)号：US20030148097A1

公开(公告)日：2003-08-07

申请号：US10334904

申请日：2003-01-02

Applicant: Futaba Corporation

Inventor： Hirofumi Takikawa ,  Shigeo Itoh

IPC: D02G003/00

CPC classification number: B82Y30/00 ,  D01F9/127 ,  Y10T428/2913

Abstract: A carbon nano-fiber, particularly twisted carbon nano-fiber such as a carbon nano-coil, carbon nano-twist, carbon nano-rope is produced by means of a catalyst CVD method using carbon-containing gas as a raw material and a catalyst comprising one or plural components selected from the group consisting of Cr, Mn, Fe, Co, Ni and oxide thereof and one or plural components selected from the group consisting of Cu, Al, Si, Ti, V, Nb, Mo, Hf, Ta, W and oxide thereof is used.

Abstract translation: 通过使用含碳气体作为原料的催化剂CVD法和催化剂制造碳纳米纤维，特别是扭转的碳纳米纤维如碳纳米线圈，碳纳米捻，碳纳米绳 包括选自由Cr，Mn，Fe，Co，Ni及其氧化物组成的组中的一种或多种，​​以及选自Cu，Al，Si，Ti，V，Nb，Mo，Hf， Ta，W及其氧化物。

公开(公告)号：US20020061638A1

公开(公告)日：2002-05-23

申请号：US09989024

申请日：2001-11-21

Applicant: Futaba Corporation

Inventor： Hirofumi Takikawa ,  Yoshihiko Hibi

IPC: H01L021/00 ,  H01L021/84 ,  H01L021/3205 ,  H01L021/4763 ,  H01L021/44

CPC classification number: B01J19/088 ,  B01J2219/0809 ,  B01J2219/082 ,  B01J2219/0822 ,  B01J2219/083 ,  B01J2219/0839 ,  B01J2219/0886 ,  B01J2219/0892 ,  B82Y10/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  H01J9/025 ,  H01J2201/30469 ,  Y10S977/742 ,  Y10S977/844

Abstract: A method and an apparatus capable of instantaneously forming a surface of an arc-treated material mainly consisting of graphite into nano-tubes due to arc discharge carried out using a unit like a welding arc torch or the like without necessarily requiring a processing container, resulting in the nano-tube being applied to an electron emission source. A torch electrode acting as a first electrode and the arc-treated material made of graphite and acting as a second electrode are arranged opposite to each other. A potential is applied between both electrodes to generate arc discharge therebetween. A mask having an opening pattern is arranged on the arc-treated material, so that only graphite positioned on portions of a surface of the arc-treated material 2 corresponding to openings of the mask are exposed to arc, to thereby be formed into nano-tubes.

Abstract translation: 一种方法和装置，其能够使用诸如焊接电弧焊炬等的单元进行的电弧放电，将由石墨主要由石墨组成的电弧处理材料的表面瞬时地形成，而不需要加工容器，从而得到 在纳米管中被施加到电子发射源。 用作第一电极的焊炬电极和由石墨制成并用作第二电极的电弧处理材料彼此相对布置。 在两个电极之间施加电位以在其间产生电弧放电。 具有开口图案的掩模布置在电弧处理材料上，使得仅位于与掩模开口相对应的电弧处理材料2的表面的部分上的石墨暴露于电弧，从而形成纳米级， 管。