公开(公告)号：JP2003238144A

公开(公告)日：2003-08-27

申请号：JP2002045018

申请日：2002-02-21

Applicant: JAPAN ATOMIC ENERGY RES INST ,  NAT INST FOR MATERIALS SCIENCE

Inventor： YOSHII MASAMOTO ,  MIZUKI JUNICHIRO ,  ABE HIDEKI ,  KITAZAWA HIDEAKI ,  MATSUSHITA AKIYUKI

IPC: C01G1/00 ,  C01B35/04 ,  H01B13/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for electrochemically synthesizing a superconducting wire and a superconducting film of a boron compound MgB 2 having 0 resistance under a superconducting transition temperature of about 39 K from a molten mix of magnesium chloride, sodium chloride, potassium chloride, and magnesium boride at a temperature of ≥400≤. SOLUTION: A mixed powder of magnesium chloride, sodium chloride, potassium chloride, and magnesium boride is electrically heated at a temperature of ≤400°C in an inert atmosphere to be dried and then further electrically heated at a temperature of ≥400°C to be fused and chemically reacted for electrochemically synthesizing the superconducting MgB 2 . COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003215000A

公开(公告)日：2003-07-30

申请号：JP2002012873

申请日：2002-01-22

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： SAWADA TSUTOMU

IPC: G01N33/48 ,  C12M1/24 ,  G01N1/10

Abstract: PROBLEM TO BE SOLVED: To provide a liquid test sample storage vessel capable of easily and effectively storing any liquid sample regardless of the kind of liquid test samples and supplying the sample of every storage means with the storage means to a proper observation means or measuring means, and never causing a problem such as liquid leakage. SOLUTION: This liquid sample storage vessel 2 comprises injector tip insert ports 1 at both ends and a flat capillary space continuously provided to the insert ports to store a liquid sample in a thin film form. The insert opening of the injector tip insert port is constituted so as to be tapered from an inlet side having a wide opening capable of inserting an injector tip part 4 to a deep side having a narrow opening on which the inserted injector tip closely abuts. The vessel is formed of a transparent material so as to be observable from the outside. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003209107A

公开(公告)日：2003-07-25

申请号：JP2002005858

申请日：2002-01-15

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： NAKAMURA AKIKO ,  KITAJIMA MASAHIRO

IPC: H01L21/316

Abstract: PROBLEM TO BE SOLVED: To provide a method of reducing the stress of an oxide film without causing any damage to a silicon substrate and the oxide film. SOLUTION: In the method of reducing the stress of the oxide film formed on the silicon substrate, radical atoms are irradiated on the oxide film to be mixed in atoms deviated from the radical atoms evenly into the entire oxide film, selectively eliminating defects existent inside the oxide film or in an interface between the oxide film and the silicon substrate and consequently reducing the stress of the oxide film. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003191200A

公开(公告)日：2003-07-08

申请号：JP2001402986

申请日：2001-12-21

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： BANDO YOSHIO ,  GAO YIHUA ,  SATO TADAO

IPC: B82B1/00 ,  B82B3/00 ,  C01B21/06 ,  C30B29/38 ,  C30B29/66 ,  H01L29/06

Abstract: PROBLEM TO BE SOLVED: To provide a new Ge 3 N 4 nano belt, which will become very useful in the future of semiconductor nano technology and method of manufacturing the Ge 3 N 4 nano belt. SOLUTION: This Ge 3 N 4 nano belt has not a circular but a square cross section and long length and includes Ge 3 N 4 . This method comprises a step of mixing the powder of Ge and SiO 2 , and a step of covering this mixed powder with activated carbon particles, a step of heating the mixed powder with activated carbon particles in NH 3 atmosphere to make it grow into a form of Ge 3 N 4 nano belt and a step of cooling Ge 3 N 4 having a form of belt. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003190271A

公开(公告)日：2003-07-08

申请号：JP2002065778

申请日：2002-03-11

Applicant: JAPAN SCIENCE & TECH CORP ,  NAT INST FOR MATERIALS SCIENCE ,  NITTA GELATIN KK

Inventor： TANAKA JUNZO ,  KIKUCHI MASANORI ,  ITO NORIKAZU ,  BANDAI YOSHINOBU

IPC: A61L27/00 ,  A61K6/838 ,  A61L27/46

Abstract: PROBLEM TO BE SOLVED: To provide an organic-inorganic composite biological material having excellent organism bone similarity by finding the optimum condition for promoting self-organization in a composite of collagen and hydroxyapatite. SOLUTION: Calcium ion and phosphate ion concentration in a reaction container are optimized by controlling starting material concentration and liquid feed speed to manufacture an organic-inorganic composite biological material formed of composite having the mean fiber length of 60 μm or more and containing hydroxyapatite and collagen. Further, bridging is introduced into the biological material to manufacture the organic-inorganic composite biological material having mechanical strengths and in-vivo decomposition speed suitable for artificial bone material. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003171199A

公开(公告)日：2003-06-17

申请号：JP2001365912

申请日：2001-11-30

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： KITAMURA KENJI ,  TAKEGAWA SHUNJI ,  NAKAMURA MASARU ,  FURUKAWA YASUNORI ,  KAKIMOTO KOICHI

IPC: C30B29/30 ,  C30B15/00

Abstract: PROBLEM TO BE SOLVED: To provide a mean for surely manufacturing a single crystal having a large diameter and free from inclusions. SOLUTION: A lithium niobate single crystal or lithium tantalate single crystal having a large diameter and free from inclusions such as air bubbles is obtained by applying an accelerated crucible rotation technique (ACRT) comprising changing the rotation number or the rotation direction of a crucible to a single crystal growth technique based on a double crucible method, and thereby, controlling the movement of the crucible and enhancing the agitation effect. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003154271A

公开(公告)日：2003-05-27

申请号：JP2001354034

申请日：2001-11-20

Applicant: JAPAN SCIENCE & TECH CORP ,  NAT INST FOR MATERIALS SCIENCE

Inventor： SUZUKI TOSHIMITSU ,  NAKAGAWA KIYOHARU ,  KAJITA CHIAKI ,  IKENAGA NAOKI ,  GAMO MIKA ,  ANDO HISAHIRO

IPC: C01B3/22 ,  B01J21/18 ,  B01J23/755 ,  B01J32/00 ,  B01J37/02 ,  B01J37/18

Abstract: PROBLEM TO BE SOLVED: To provide an Ni catalyst effective to produce hydrogen by decomposi tion of methanol. SOLUTION: The diamond carrying Ni catalyst prepared in such a way as to carry 200 mg catalyst and 5 wt.% (expressed in terms of oxides) catalyst components is reduced with hydrogen at 500 deg.C for 1 hr immediately before use. When 10-11 mmol/hr methanol is supplied and synthesis gas is produced at 300 deg.C reaction temperature in 1 hr reaction time, such a high methanol conversion rate as 78.9% is yielded and such a high hydrogen to carbon monoxide ratio as 1.7 is also obtained. The amounts of by-products such as methane and carbon dioxide are also small.

公开(公告)号：JP2003137518A

公开(公告)日：2003-05-14

申请号：JP2001333580

申请日：2001-10-31

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： KOBAYASHI TAKAMICHI ,  SEKINE TOSHIMORI

IPC: C01B31/02

Abstract: PROBLEM TO BE SOLVED: To provide a method for synthesizing carbon onion by a collision on a shock board. SOLUTION: This method comprises mixing silicon carbide (α-SiC or β-SiC) powders with copper powders and pressurizing the resultant mixture by a shock wave to synthesize carbon onion, and is characterized by applying an ultra-high pressure and temperature shock compression having a pressure of 350,000 atm or more and a temperature of 2,700 deg.C or higher to the pressurized formed body of SiC and copper powders. It is preferable that the density of the pressurized formed body is 6.0 g/cm or higher and the pressure of shock compression is 350,000 atm or higher.

公开(公告)号：JP2003119578A

公开(公告)日：2003-04-23

申请号：JP2001316973

申请日：2001-10-15

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： GOTO MASAHIRO ,  KASAHARA AKIRA ,  TOSA MASAHIRO ,  YOSHIHARA KAZUHIRO

IPC: F16C33/12 ,  C23C14/34 ,  C23C30/00

Abstract: PROBLEM TO BE SOLVED: To provide a low-friction material, which stably has superior low- friction characteristics in atmospheres of the air to an ultra-high vacuum, and has such high durability and the long life as to enable the material to be repeatedly used in humid to dry conditions. SOLUTION: The low-friction material has a thin film of a copper oxide formed on the surface of a substrate, and shows the low-friction characteristics in atmospheres of the air to the ultra-high vacuum.

公开(公告)号：JP2003099920A

公开(公告)日：2003-04-04

申请号：JP2001288171

申请日：2001-09-21

Applicant: NAT INST FOR MATERIALS SCIENCE

Inventor： TAKAHASHI YUKIKO ,  ONUMA MASATO ,  HOUNO KAZUHIRO

IPC: C23C14/14 ,  C23C14/34 ,  G11B5/65 ,  G11B5/73 ,  G11B5/738 ,  G11B5/851 ,  H01F10/14 ,  H01F41/18

Abstract: PROBLEM TO BE SOLVED: To obtain an PePt phase of L10 structure regularized immediately after the film is formed without high temperature treatment at a temperature of 600 deg.C or higher after the film is formed and without adding a third element to obtain large coercive force at a low temperature. SOLUTION: The FePt phase of L10 structure regularized right after forming the film is obtained by forming the film by a sputtering method while heating a substrate at a temperature of 200-300 deg.C, and making the regularization advance for the FePt phase by the surface dispersion of atoms occurring on the surface during the film formation.