Title:
CARBON NANOBALLOON STRUCTURE AND METHOD FOR PREPARATION THEREOF, AND ELECTRON RELEASING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2005/095275
Kind Code:
A1
Abstract:
A carbon nanoballoon structure having a hollow structure of a relatively large closed space, characterized in that it comprises a hollow structure wherein graphite layers are bound and arranged in such a manner that they form a curved surface as a whole; and a method for preparing the carbon nanoballoon structure with ease and stability, which comprises heating a soot formed by an arc discharge using a carbon electrode or by the laser irradiation to a carbon material or heating a carbon black having a specific surface area of 1000 m2/g or more and a primary particle diameter of 20 nm or more, to a high temperature in an inert gas atmosphere.
Inventors:
Takikawa, Hirofumi (1-3, Aza Uehara Ogasaki-cho, Toyohashi-sh, Aichi 66, 44180, JP)
Kondo, Akira c/o Tokai Carbon Co. Ltd. (2-3, Kita-Aoyama 1-chome, Minato-k, Tokyo 36, 10786, JP)
Yoshikawa, Kazuo c/o Tokai Carbon Co. Ltd. (2-3, Kita-Aoyama 1-chome, Minato-k, Tokyo 36, 10786, JP)
Itoh, Shigeo c/o Futaba Corporation (629 Oshiba, Mobara-sh, Chiba 88, 29785, JP)
Kondo, Akira c/o Tokai Carbon Co. Ltd. (2-3, Kita-Aoyama 1-chome, Minato-k, Tokyo 36, 10786, JP)
Yoshikawa, Kazuo c/o Tokai Carbon Co. Ltd. (2-3, Kita-Aoyama 1-chome, Minato-k, Tokyo 36, 10786, JP)
Itoh, Shigeo c/o Futaba Corporation (629 Oshiba, Mobara-sh, Chiba 88, 29785, JP)
Application Number:
PCT/JP2005/006441
Publication Date:
October 13, 2005
Filing Date:
March 25, 2005
Export Citation:
Assignee:
TOKAI CARBON CO., LTD. (2-3 Kita-Aoyama 1-chome, Minato-ku Tokyo, 36, 10786, JP)
FUTABA CORPORATION (629 Oshiba, Mobara-shi Chiba, 88, 29785, JP)
Takikawa, Hirofumi (1-3, Aza Uehara Ogasaki-cho, Toyohashi-sh, Aichi 66, 44180, JP)
Kondo, Akira c/o Tokai Carbon Co. Ltd. (2-3, Kita-Aoyama 1-chome, Minato-k, Tokyo 36, 10786, JP)
Yoshikawa, Kazuo c/o Tokai Carbon Co. Ltd. (2-3, Kita-Aoyama 1-chome, Minato-k, Tokyo 36, 10786, JP)
Itoh, Shigeo c/o Futaba Corporation (629 Oshiba, Mobara-sh, Chiba 88, 29785, JP)
FUTABA CORPORATION (629 Oshiba, Mobara-shi Chiba, 88, 29785, JP)
Takikawa, Hirofumi (1-3, Aza Uehara Ogasaki-cho, Toyohashi-sh, Aichi 66, 44180, JP)
Kondo, Akira c/o Tokai Carbon Co. Ltd. (2-3, Kita-Aoyama 1-chome, Minato-k, Tokyo 36, 10786, JP)
Yoshikawa, Kazuo c/o Tokai Carbon Co. Ltd. (2-3, Kita-Aoyama 1-chome, Minato-k, Tokyo 36, 10786, JP)
Itoh, Shigeo c/o Futaba Corporation (629 Oshiba, Mobara-sh, Chiba 88, 29785, JP)
International Classes:
B82B1/00; C01B31/02; H01J1/304; (IPC1-7): C01B31/02
Attorney, Agent or Firm:
Fukuda, Yasuo (Hongo Bldg. 5F, 1-16 Kanda Suda-ch, Chiyoda-ku Tokyo 41, 10100, JP)
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