公开(公告)号：JPH055896B2

公开(公告)日：1993-01-25

申请号：JP8928389

申请日：1989-04-07

Applicant: SHINGIJUTSU JIGYODAN ,  IIJIMA SUMIO

Inventor： IIJIMA SUMIO

IPC: B22F1/02 ,  C01B33/02 ,  C23C16/00 ,  C23C16/46 ,  D06M11/00 ,  D06M101/00

公开(公告)号：JPS6345619B2

公开(公告)日：1988-09-09

申请号：JP16126984

申请日：1984-07-31

Applicant: SHINGIJUTSU KAIHATSU JIGYODAN ,  IIJIMA SUMIO

Inventor： IIJIMA SUMIO

IPC: B01J35/06 ,  B01J32/00 ,  B01J35/02 ,  B01J37/02

公开(公告)号：JP2001064004A

公开(公告)日：2001-03-13

申请号：JP22547198

申请日：1998-07-25

Applicant: JAPAN SCIENCE & TECH CORP ,  CT NATL DE LA RECH SCIENT ,  IIJIMA SUMIO ,  YUDASAKA MASAKO ,  KOMI FUMIO ,  TAKAHASHI KUNIMITSU ,  KUMAGAI MIKIRO ,  BANDO TOSHIHARU ,  SUENAGA KAZUTOMO

Inventor： IIJIMA SUMIO ,  YUDASAKA MASAKO ,  KOMI FUMIO ,  TAKAHASHI KUNIMITSU ,  KUMAGAI MIKIRO ,  BANDO TOSHIHARU ,  SUENAGA KAZUTOMO ,  CHRISTIAN COLLIEX

IPC: C01B31/02 ,  B82B1/00

Abstract: PROBLEM TO BE SOLVED: To provide a new single layer carbon nano-horn structure which has a hollow conical structure constituted of a single layer having the thickness corresponding to the size of carbon atom and which is expected to be developed as a new functional material. SOLUTION: The conical form mentioned above is nearly conical form and, eventually, a horn form. In the whole structure, the conical structure is specified as such a structure that the diameter D of the tubular part 2 increases continuously with the closed tip end part 1 as an apex. Both parts of the closed tip end part 1 and the tubular part 2 are constituted of a single layer structure having the thickness corresponding to the size of one carbon atom. A method for producing the hollow conical structure comprises irradiating a solid carbon simple substance with laser light under an inert gas atmosphere to subject it to carbon laser evaporation to obtain soot-like substance, that is powder formed by the aggregation of the spherical substance. Further the powder is suspended in a solvent to recover spherical particles, each being in the single particle state or in the aggregated state of plural particles.

公开(公告)号：JPS638263A

公开(公告)日：1988-01-14

申请号：JP15009186

申请日：1986-06-26

Applicant: JAPAN RES DEV CORP

Inventor： TAKAHASHI SHIGETOSHI ,  IIJIMA SUMIO

IPC: C04B35/626 ,  C04B35/56