中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

15 records (took 0.026 seconds)

    RECOVERY OF CARBON NANOTUBE
    5.
    发明专利
    RECOVERY OF CARBON NANOTUBE 失效

    公开(公告)号：JPH11106208A

    公开(公告)日：1999-04-20

    申请号：JP21511398

    申请日：1998-07-30

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： YAMAMOTO KAZUHIRO ,  KOGA YOSHINORI ,  FUJIWARA SHUZO

    IPC: C01B31/02 ,  B01J19/08 ,  C23C14/06 ,  C23C14/46 ,  H01J9/02

    Abstract: PROBLEM TO BE SOLVED: To enable the formation and recovery of carbon nanotube at an arbitrary position on a carbonaceous solid surface and facilitate the production of an electron-emission material for an electron beam source element by irradiating a part of a carbonaceous solid surface with an ion beam in high vacuum to form a carbon nanotube on the irradiated part and recovering the formed nanotube. SOLUTION: A part of a flat carbonaceous solid surface is irradiated in high vacuum with an ion beam generated by the application of an ion acceleration potential of 500-20,000 V and carbon nanotube formed on the irradiated part is recovered. Graphite, fullerrene carbon, amorphous carbon, etc., may be used as the carbonaceous solid structure. Ion beam of rare gas such as argon and neon, nitrogen gas, gallium, etc., can be used as the ion beam. The irradiation angle of the ion beam is between 0 and 20 deg. based on the normal line perpendicular to the irradiation surface of the flat carbonaceous solid structure.

    MODIFIED SOLID SURFACE WITH HIGHLY REACTIVE ACTIVE SPECIES FIXED ON THE SURFACE
    6.
    发明专利
    MODIFIED SOLID SURFACE WITH HIGHLY REACTIVE ACTIVE SPECIES FIXED ON THE SURFACE 失效

    公开(公告)号：JPH11130886A

    公开(公告)日：1999-05-18

    申请号：JP19181698

    申请日：1998-07-07

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： NIINO HIROYUKI ,  KOGA YOSHINORI ,  YABE AKIRA

    IPC: C08J7/18 ,  B01J19/12 ,  B29C71/04 ,  B32B7/00 ,  C08J7/00 ,  C23C26/00

    Abstract: PROBLEM TO BE SOLVED: To obtain a solid surface having the surface modified with a highly reactive active species and a precise and uniform highly functionalized surface by irradiating an ultraviolet laser to the solid layer. SOLUTION: This solid surface is obtained by irradiating an ultraviolet laser with a wave length of 400 nm or less (preferably, an argon-fluorine excimer laser, a krypton-fluorine excimer laser or the like) to the solid layer comprising a mixture of (A) a matrix material (e.g. an inert gas, an alkane fluoride compound and an alkane compound) and (B) an optically reactive substance (e.g. an azide compound, an azo compound and a carbonyl compound) formed on a substrate (preferably a metal substrate, a sapphire substrate, a cesium iodide substrate or the like), and bringing the discharged highly reactive active species into contact with the solid surface, and having the solid surface with the highly reactive active species fixed to the surface by the chemical reaction. The component B is used in the rate of

    EMISSION OF HIGHLY REACTIVE ACTIVE SPECIES AND MODIFICATION OF SOLID SURFACE
    8.
    发明专利
    EMISSION OF HIGHLY REACTIVE ACTIVE SPECIES AND MODIFICATION OF SOLID SURFACE 失效

    公开(公告)号：JPH09241405A

    公开(公告)日：1997-09-16

    申请号：JP5155696

    申请日：1996-03-08

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： NIINO HIROYUKI ,  KOGA YOSHINORI ,  YABE AKIRA

    IPC: C08J7/00 ,  B29C59/16 ,  B29C71/04 ,  C23C14/12 ,  C23C14/58

    Abstract: PROBLEM TO BE SOLVED: To improve structural characteristics and functions of a surface of a solid by irradiating ultraviolet laser beam having a specified wave length on a surface of a specific solid layer formed on a substrate and emitting highly reactive active species in high purity and in high efficiency. SOLUTION: On a solid layer, formed on a substrate, consisting of a mixture of a matrix material such as a rare gas, nitrogen gas, carbon dioxide, a fluorinated alkane compound, an alkane compound, an ether or an alcohol and a photo reactive material such as an azide compound, an azo compound, a carbonyl compound, an acid anhydride, a hydrazine or an organic halide compound, ultraviolet laser beam such as argon-fluorine excimer laser beam having a wave length of

    CARBONACEOUS MATERIAL HAVING CARBON NANOTUBE ON SURFACE AND ITS PRODUCTION
    9.
    发明专利
    CARBONACEOUS MATERIAL HAVING CARBON NANOTUBE ON SURFACE AND ITS PRODUCTION 失效

    公开(公告)号：JPH09221309A

    公开(公告)日：1997-08-26

    申请号：JP2503796

    申请日：1996-02-13

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： YAMAMOTO KAZUHIRO ,  KOGA YOSHINORI ,  FUJIWARA SHUZO

    IPC: C01B31/02 ,  C23C14/46 ,  H01J1/304 ,  H01J9/02

    Abstract: PROBLEM TO BE SOLVED: To produce an electron emitting body having a carbon nanotube layer as an electron emitting material for an electron beam source element and an electrode structure on a carbonaceous substrate by forming a carbon nanotube on a part of a carbonaceous solid surface. SOLUTION: This carbonacous material is produced by irradiating a part of the surface with ion beams in high vacuum. As for a carbonaceous solid, graphite, fullerene carbon and amorphous carbon can be used. The carbonaceous solid may have various forms. As for the ion beam, rare gases, nitrogen gas or potassium can be used. The irradiation angle of the ion beam is controlled at 0 deg. to 20 deg. to the normal direction of the solid surface. In this range of the irradiation angle, sputtered carbon atoms in the irradiated part of the solid surface deposit again to produce a carbon nanotube. This process is performed under conditions of 500 to 20000V ion accelerating voltage, 0.01 to 1000mA ion current, 300 to 3600sec irradiation time and 5×10 Torr vacuum degree.

    METHOD FOR MODIFYING SURFACE OF MOLDED POLYMER BY USING ULTRAVIOLET LASER
    10.
    发明专利
    METHOD FOR MODIFYING SURFACE OF MOLDED POLYMER BY USING ULTRAVIOLET LASER 失效

    公开(公告)号：JPH09194615A

    公开(公告)日：1997-07-29

    申请号：JP864296

    申请日：1996-01-22

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： NIINO HIROYUKI ,  KOGA YOSHINORI ,  YABE AKIRA

    IPC: C08J7/00

    Abstract: PROBLEM TO BE SOLVED: To modify the surface of a molded polymer with an ultraviolet laser by a method wherein the surface is efficiently and economically rendered highly hydrophilic without using a vacuum device. SOLUTION: The surface of a molded polymer, in a state in which the surface is kept in contact with a gaseous mixture of a hydrazine compound and a low-molecular oxygen compound or in contact with a solution containing a hydrazine compound, is irradiated with an ultraviolet laser to render the surface hydrophilic.

Patent Agency Ranking