Title:
CARBON NANOTUBE, SUBSTRATE AND ELECTRON EMITTING ELEMENT EQUIPPED THEREWITH, SUBSTRATE FOR CARBON NANOTUBE SYNTHESIS, PROCESS FOR PRODUCING THEM, AND PRODUCTION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2007/061078
Kind Code:
A1
Abstract:
In the Raman spectrum of carbon nanotube (64), the Raman scattering intensity in
the vicinity of 1580 cm-1 is the highest. Carbon nanotubes can be grown
on the catalyst microparticles (63) of a substrate composed of conductive substrate
(62) and, superimposed on its surface, catalyst microparticles (63). The catalyst
microparticles (63) consist of cobalt oxide catalyst ultrafine particles.
Electron emitting element (60) structured so as to apply voltage to apical end
(64a) of such carbon nanotube (64) to thereby effect electron emission can realize
lowering of driving voltage and attainment of a current value of such a magnitude
that induces luminescence of commercially available phosphors for low-velocity
electron beam. The electron emitting element (60) needs no gate, so that there
can be realized simplification of the structure of plane emission elements equipped
therewith and cost reduction thereof. The carbon material is not oxidized even
in low-vacuum regions, so that there can be realized easing of panel making, and
prolongation of operating life, as compared with those of light emitting elements
making use of conventional electron emitting elements.
Inventors:
ANDO TOSHIHIRO (JP)
NAKAGAWA KIYOHARU (JP)
GAMO MIKA (JP)
GAMO HIDENORI (JP)
NAKAGAWA KIYOHARU (JP)
GAMO MIKA (JP)
GAMO HIDENORI (JP)
Application Number:
PCT/JP2006/323501
Publication Date:
May 31, 2007
Filing Date:
November 24, 2006
Export Citation:
Assignee:
NAT INST FOR MATERIALS SCIENCE (JP)
TOPPAN PRINTING CO LTD (JP)
ANDO TOSHIHIRO (JP)
NAKAGAWA KIYOHARU (JP)
GAMO MIKA (JP)
GAMO HIDENORI (JP)
TOPPAN PRINTING CO LTD (JP)
ANDO TOSHIHIRO (JP)
NAKAGAWA KIYOHARU (JP)
GAMO MIKA (JP)
GAMO HIDENORI (JP)
International Classes:
B82B3/00; C01B31/02; H01J1/304; H01J9/02
Foreign References:
| JP2002037614A | 2002-02-06 | |||
| JP2004292216A | 2004-10-21 | |||
| JP2005213567A | 2005-08-11 | |||
| JP2005314161A | 2005-11-10 | |||
| JP2005314162A | 2005-11-10 | |||
| JP2005035800A | 2005-02-10 | |||
| JP2003012312A | 2003-01-15 |
Other References:
SAITO R. ET AL: "Carbon Nano Tube no Kiso to Oyo", 31 March 2004, BAIFUKAN, pages: 110 - 112, XP003013620
ANDO T.: "Diamond Hyomen no Kagaku Shushoku to Ekisoho Nano Tube Gosei, Tan'itsu Bunshi Genshi Level no Hanno Seigyo", THEME-BETSU SYMPOSIUM 2 BUTSURI KAGAKU NO SAIZENSEN NANO ZAIRYO SOSEI NO IMPACT, 2002, pages 51 - 54, XP003013621
SHIBAZAKI K. ET AL: "Koeki Kaimen Sesshoku Bunkaiho ni yoru Carbon Nano Tube no Gosei - Sobalt Shokubai no Butsuri Kagaku Jotai to Seiseibutsu no Kankei", THE SURFACE FINISHING SOCIETY OF JAPAN DAI 112 KAI KOEN TAIKAI KOEN YOSHISHU, 16 September 2005 (2005-09-16), pages 158 - 159, XP003013622
See also references of EP 1964809A4
ANDO T.: "Diamond Hyomen no Kagaku Shushoku to Ekisoho Nano Tube Gosei, Tan'itsu Bunshi Genshi Level no Hanno Seigyo", THEME-BETSU SYMPOSIUM 2 BUTSURI KAGAKU NO SAIZENSEN NANO ZAIRYO SOSEI NO IMPACT, 2002, pages 51 - 54, XP003013621
SHIBAZAKI K. ET AL: "Koeki Kaimen Sesshoku Bunkaiho ni yoru Carbon Nano Tube no Gosei - Sobalt Shokubai no Butsuri Kagaku Jotai to Seiseibutsu no Kankei", THE SURFACE FINISHING SOCIETY OF JAPAN DAI 112 KAI KOEN TAIKAI KOEN YOSHISHU, 16 September 2005 (2005-09-16), pages 158 - 159, XP003013622
See also references of EP 1964809A4
Attorney, Agent or Firm:
HIRAYAMA, Kazuyuki (Shinjukugyoen Bldg. 2-3-10, Shinjuk, Shinjuku-ku Tokyo 22, JP)
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