公开(公告)号：JPH02141414A

公开(公告)日：1990-05-30

申请号：JP29580288

申请日：1988-11-22

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OINUMA SENZO ,  NAKAYAMA YOSHIO ,  MATSUNAGA TAKEHIRO ,  IIDA MITSUAKI ,  TANAKA KATSUMI ,  TADA KAZUMI

IPC: C01B31/06 ,  B01J3/08

Abstract: PURPOSE:To make it possible to easily repeat explosion by a desired number of repetitions and to facilitate the recovery of a reaction product by exploding a starting material mixture of an explosive with graphite in water. CONSTITUTION:A starting material mixture of an explosive with graphite is press-molded so as to attain >=1.4 g/cm density and the resulting molded body is charged into a pipe with one end or both ends open as required. The molded body or the pipe is suspended in water in a water tank at >=50cm depth of water. After explosion, the supernatant liq. is removed and the deposit is recovered. The metals in the deposit are dissolved and removed with nitric acid, the residual graphite is removed with a mixed soln. of hydrochloric acid and nitric acid and then the deposit is treated with a mixed soln. of hydrofluoric acid and nitric acid to obtain high purity diamond.

公开(公告)号：JPS6266847A

公开(公告)日：1987-03-26

申请号：JP20663285

申请日：1985-09-20

Applicant: AGENCY IND SCIENCE TECHN ,  HOSOYA FIREWORKS

Inventor： OINUMA SENZO ,  TANAKA KAZUMI ,  YOSHIDA MASANORI ,  IIDA MITSUAKI ,  NAKAYAMA YOSHIO ,  KAMIYA NAGATOSHI

IPC: A61B17/22

公开(公告)号：JPH03271109A

公开(公告)日：1991-12-03

申请号：JP7265590

申请日：1990-03-22

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OINUMA SENZO ,  MATSUNAGA TAKEHIRO ,  NAKAYAMA YOSHIO ,  IIDA MITSUAKI ,  TANAKA KATSUMI

IPC: B01J3/08 ,  C01B31/06

Abstract: PURPOSE:To obtain diamond with improved recovery efficiency by exploding underwater an organic explosive composition with the oxygen balance level adjusted negatively. CONSTITUTION:Firstly, a flammable material negative in oxygen balance level (e.g. 2,5-dibromo-4-nitrophenol) is added to a dynamite composition including cyclotetramethylene tetranitramine and picric acid followed by forming into an organic explosive composition -0.25--1.2 in oxygen balance level. Thence, this composition is set in a sealing tube with one end open, and the resulting sealed tube is suspended underwater at a position >=50cm in depth so that its major axis be nearly horizontal, and then exploded. The resultant tube is then lifted with its opening upward and left at rest, thus recovering the diamond produced.

公开(公告)号：JPH02236998A

公开(公告)日：1990-09-19

申请号：JP5618689

申请日：1989-03-10

Applicant: AGENCY IND SCIENCE TECHN ,  ASAHI CHEMICAL IND ,  NICHICON CORP ,  FUJI ELECTRIC CO LTD

Inventor： KAKUDATE YOUZOU ,  USU NOBUKUNI ,  NAKAYAMA YOSHIO ,  YOSHIDA MASANORI ,  TANAKA KATSUMI ,  FUJIWARA SHUZO ,  KUBOTA AKIRA ,  DEN MINORU ,  MIYAMOTO MASAHIRO ,  MORITA AKIRA

IPC: H05H1/24

Abstract: PURPOSE:To generate high intensity plasma easily and with good reproducibility by using a liquid explosive and a metal tube of certain performance and shape. CONSTITUTION:Gas for plasma generation that generates desired plasma is stored in a metal tube 10, while a liquid explosive 9 is arranged with its exterior surrounded by a container 11 for liquid, longitudinally along the metal tube 10. The liquid explosive 9 is initiated by a detonator 3, and the gas in the metal tube 10 is turned into plasma due to detonation wave generated thereby. Propagation speed proper to the liquid explosive 9 is defined as not less than 7.5km/minutes, and the explosive is reduced to liquid at a temperature of not more than 0 deg.C. By the use of this explosive, interruption of detonation does not occur as in the case where a solid explosive or powdery explosive is used, and high intensity plasma can thus be formed by high pressure, easily and with good reproducibility.

公开(公告)号：JPS63296755A

公开(公告)日：1988-12-02

申请号：JP13159987

申请日：1987-05-29

Applicant: AGENCY IND SCIENCE TECHN ,  MEIJI SHINKIYUU UNIV ,  HOSOYA FIREWORKS

Inventor： OINUMA SENZO ,  TANAKA KAZUMI ,  NAKAYAMA YOSHIO ,  KUWABARA JINTARO ,  YANO TADASHI ,  KAMIYA NAGATOSHI

IPC: A61H39/00

Abstract: PURPOSE:To safely perform treatment without generating an unnecessary stimulus and imparting a feeling of uneasiness to a patient, by arranging a shock wave generating source such as detonator at the first focus of a converging reflecting mirror and positioning the effective spot of a body to be treated such as a human body at the second focus where the shock wave thereof is converged to apply a stimulus to said effective spot. CONSTITUTION:Detonator or other shock wave generating source 1 is positioned at the first focus A of a converging reflecting mirror 2 to generate a shock wave. Next, the generated shock wave transmits through the water 3 being the pressure propagating medium in the converging reflecting mirror 2 to be reflected and propagated. Further, the effective spot 8 of a body 7 to be treated such as a human body is positioned at the second focus B to apply a stimulus to the effective spot 8. The pressure at the second focus B in this case is 70-90kg/cm when the detonator 3mg being the shock wave generating source 1 is exploded and, at the position separated by 50mm from the second focus B at this time, said pressure becomes 0.5-2kg/cm and the shock wave is clear ly converged to the second focus 8 and no unnecessary stimulus is applied to a place other than the effective spot 8.

公开(公告)号：JPH0411938A

公开(公告)日：1992-01-16

申请号：JP11407090

申请日：1990-04-27

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OINUMA SENZO ,  MATSUNAGA TAKEHIRO ,  NAKAYAMA YOSHIO ,  IIDA MITSUAKI ,  TANAKA KATSUMI

IPC: B01J3/08

Abstract: PURPOSE:To easily synthesize high pressure-phase boron nitride by allowing an explosive composition containing an explosive and low pressure-phase boron nitride to explode in water. CONSTITUTION:The explosive composition consists of an explosive such as TNT, HMX, etc., and low pressure-phase boron nitride such as hexagonal boron nitride. This composition is made to explode in water at the depth where the objective reaction product cannot scatter outside. Then a high pressure-phase boron nitride is obtained in water by this in-water explosion. Since the reaction product has large density than water, it easily precipitates. Thereby, apparatus such as the container can be repeatedly used and the objective product can be collected continuously at one time.

公开(公告)号：JPS6253644A

公开(公告)日：1987-03-09

申请号：JP19198285

申请日：1985-09-02

Applicant: AGENCY IND SCIENCE TECHN ,  HOSOYA FIREWORKS

Inventor： OINUMA SENZO ,  TANAKA KAZUMI ,  YOSHIDA MASANORI ,  IIDA MITSUAKI ,  NAKAYAMA YOSHIO ,  KAMIYA NAGATOSHI

IPC: A61B17/22

公开(公告)号：JPH02241536A

公开(公告)日：1990-09-26

申请号：JP6448889

申请日：1989-03-16

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MATSUNAGA TAKEHIRO ,  NAKAYAMA YOSHIO ,  IIDA MITSUAKI ,  OINUMA SENZO ,  TANAKA KATSUMI

IPC: B01J3/08

Abstract: PURPOSE:To enhance the production yield of diamond by mixing a diamond powder with a mixture of a high explosive and the others. CONSTITUTION:A diamond powder is mixed with a high explosive such as HMX, RDX or the like, a mixture of two or more kinds of high explosives or a mixture of the high explosive and other org. matter such as paraffin or 2,5-dibromonitrobenzene or inorg. matter. At this time, the content of the high explosive is set to 60wt.% and the remainder is constituted of the diamond powder and the org. or inorg. matter. By this method, diamond is newly formed in high yield by about 6% with respect to the used explosive composition.