公开(公告)号：US20110318256A1

公开(公告)日：2011-12-29

申请号：US13256614

申请日：2010-03-12

申请人： Yoshikazu Nakayama ,  Toru Sakai ,  Takeru Yajima ,  Yoichi Urakawa ,  Kenichi Kon ,  Takeshi Nagasaka

发明人： Yoshikazu Nakayama ,  Toru Sakai ,  Takeru Yajima ,  Yoichi Urakawa ,  Kenichi Kon ,  Takeshi Nagasaka

IPC分类号： D01F9/12 ,  B01J19/00 ,  B82Y40/00

CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C01B32/162 ,  C01B32/164 ,  C01B2202/08

摘要： A method and apparatus for continuously synthesizing oriented carbon nanotubes, with which oriented carbon nanotubes can be stably synthesized in large quantities, is presented.The method and apparatus for continuously synthesizing oriented carbon nanotubes comprise: a coating and drying step in which a catalyst liquid is applied and dried to form a catalyst layer on a substrate surface; a catalyst substrate formation step in which the catalyst layer is heated to form a catalyst substrate having a catalyst particle layer on the substrate surface; a synthesis step in which a raw material gas heated to a temperature equal to or higher than a synthesis temperature for the oriented carbon nanotubes is brought into contact with the surface of the catalyst substrate to synthesize oriented carbon nanotubes; and a collection step in which the oriented carbon nanotubes are collected. In the synthesis step, a carrier gas having a temperature equal to or higher than the synthesis temperature is supplied to the periphery of the raw material gas which is in contact with the surface of the catalytic substrate, or to its front and rear stages. Thus, oriented carbon nanotubes are continuously or intermittently synthesized.

摘要翻译： 提出了一种用于连续合成定向碳纳米管的方法和装置，其中定向碳纳米管可以大量稳定地合成。 用于连续合成定向碳纳米管的方法和装置包括：涂覆和干燥步骤，其中施加和干燥催化剂液体以在基材表面上形成催化剂层; 催化剂基板形成步骤，其中催化剂层被加热以形成在基板表面上具有催化剂颗粒层的催化剂基材; 将加热到等于或高于取向碳纳米管的合成温度的原料气体与催化剂基板的表面接触以合成定向碳纳米管的合成步骤; 以及其中收集定向碳纳米管的收集步骤。 在合成步骤中，将具有等于或高于合成温度的温度的载气供给到与催化剂基材的表面接触的原料气体的周边或其前后级。 因此，定向碳纳米管是连续或间歇合成的。

公开(公告)号：US4940931A

公开(公告)日：1990-07-10

申请号：US368868

申请日：1989-06-20

申请人： Aiichi Katayama ,  Kenichi Kon

发明人： Aiichi Katayama ,  Kenichi Kon

IPC分类号： G01R13/02

CPC分类号： G01R13/02 ,  G01R13/0227

摘要： A timing signal generating circuit generates a timing signal for each sweep timing period. An address generating circuit generates an address corresponding to each sweep timing period and to the magnitude of the input signal, each time it receives the timing signal. An image memory stores data in the address generated by the address generating circuit. A computing unit performs, upon each receipt of the timing signal, a predetermined computation on that data stored in the image memory and generates a result of computation. The computation result represents the frequency of the same address generated for each sweep timing period. A display unit displays the input signal with a luminance level corresponding to the computation result.

公开(公告)号：US5162724A

公开(公告)日：1992-11-10

申请号：US410643

申请日：1989-09-21

申请人： Aiichi Katayama ,  Mitsuyoshi Takano ,  Hiroyoshi Oka ,  Kenichi Kon

发明人： Aiichi Katayama ,  Mitsuyoshi Takano ,  Hiroyoshi Oka ,  Kenichi Kon

IPC分类号： G01R23/16 ,  G01R23/173

CPC分类号： G01R23/173

摘要： A spectrum analyzer comprising various components. In the analyzer, a high-frequency signal processing circuit frequency-converts an object signal including waves recurring for a short period of time, into an intermediate-frequency signal, by using a local oscillation signal swept continuously over a desired range of frequencies, and thereby outputs a frequency spectrum of the object signal. A demodulator demodulates the frequency spectrum output by the high-frequency signal processing circuit. A selection signal supplying section supplies a selection signal for selecting that portion of the spectrum output by the demodulator, which lies waves to be analyzed. A control section outputs said portion of the spectrum output by the demodulator, in accordance with the selection signal output from the selection signal supplying section. A display displays the frequency spectrum output by the control section. A sweep control section causes the high-frequency signal processing circuit to sweep the local oscillation signal repeatedly, each time for a period which is not an integral multiple of the cycle period of the selection signal.