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    PRODUCTION OF BORON NITRIDE, ALUMINUM NITRIDE OR SILICON NITRIDE THROUGH COMBUSTION SYNTHESIS
    42.
    发明专利
    PRODUCTION OF BORON NITRIDE, ALUMINUM NITRIDE OR SILICON NITRIDE THROUGH COMBUSTION SYNTHESIS 失效

    公开(公告)号：JP2000264608A

    公开(公告)日：2000-09-26

    申请号：JP7808999

    申请日：1999-03-23

    Applicant: YAMADA OSAMU ,  UNIV OSAKA SANGYO

    Inventor： YAMADA OSAMU

    IPC: C01B21/06 ,  C01B21/064 ,  C01B21/068 ,  C01B21/072

    Abstract: PROBLEM TO BE SOLVED: To provide a production process for BN, AlN or Si3N4 of high purity that gives very fine particles of products in no need of crushing without contamination of impurities from the heating material for ignition by permitting the combustion synthesis of BN, AlN or Si3N4 in the nitrogen atmosphere under the pressure lower than the prescribed one where the combustion synthesis has been regarded to be impossible. SOLUTION: The combustion synthesis is initiated by irradiating the starting boron powder, aluminum powder or silicon powder with the laser of a wavelength longer than 770 nm with the output power of 0.5-500 watts in a nitrogen atmosphere under

    AIR PRESS-IN MEMBER
    43.
    发明专利
    AIR PRESS-IN MEMBER 失效

    公开(公告)号：JPH1143070A

    公开(公告)日：1999-02-16

    申请号：JP21696697

    申请日：1997-07-29

    Applicant: YAMADA OSAMU

    Inventor： YAMADA OSAMU

    IPC: E04C2/30 ,  B62D25/00

    Abstract: PROBLEM TO BE SOLVED: To provide a member of high strength a reinforcement member, and a shaft and a head and the like of a golf club. SOLUTION: A member 1 is a pipe form member with a circular form of cross section, and the air is pressed in to the inner side. Reinforcement members 2 have hollow spaces, and the air is pressed in, although their cross section forms are different. The strength of the reinforcement members 2 is increased by the applied air pressure. As a result, the reinforcement members 2 improve the strength of a vehicle, suppress the deformation of a cabin part at the minimum, and can prevent the damage of the persons in the vehicle when a trouble is generated. And the weight of the vehicle can be reduced, and the reinforcement members 2 can be communicated each other. And air pressure inlets are provided, from which the air can be pressed in.

    PRODUCTION OF INTERMETALLIC COMPOUND AND CERAMICS
    45.
    发明专利
    PRODUCTION OF INTERMETALLIC COMPOUND AND CERAMICS 失效

    公开(公告)号：JPH059009A

    公开(公告)日：1993-01-19

    申请号：JP15853991

    申请日：1991-06-28

    Applicant: YAMADA OSAMU ,  OSAKA SANGYO UNIV

    Inventor： YAMADA OSAMU

    IPC: C01B13/14 ,  C01F7/42 ,  C01G23/04 ,  C22C1/00 ,  C22C1/02

    Abstract: PURPOSE:To inexpensively and rapidly obtain the intermetallic compd. and ceramics by adding a specific diluent to a mixture composed of (non)metallic oxides and (non)metallic elements to effect reaction. CONSTITUTION:The intermetallic compd. or ceramic powder is added as the diluent to the mixture composed of the (non)metallic oxides and the (non)metallic elements and while the reaction temp. is controlled under 0.1 to 30atm, the mixture is brought into reaction in accordance with formula {(a) to (f) are positive integers; [MaOb] is the (non)metallic oxide; E, R are the (non)metallic elements; [McEd] is the intermetallic compd., nonoxide ceramics; [ReOf] is the oxide ceramics; M is >=1 among Mn, Fe, Co, Ni, Cu, Zn, Tc, Ru, Rh, Pb, Ag, Re, Os, Ir, Pt, and Au; E is at least one among B, C, N, Al, Si, P, S, Sc, Ti, V, Cr, Y, Zr, Nb, etc.; R is at least one among B, Mg, Al, Si, Ca, lanthanoid element, etc.

    PRODUCTION OF ALUMINUM NITRIDE
    47.
    发明专利
    PRODUCTION OF ALUMINUM NITRIDE 失效

    公开(公告)号：JP2000016805A

    公开(公告)日：2000-01-18

    申请号：JP18948598

    申请日：1998-07-03

    Applicant: TOYO ALUMINIUM KK ,  UNIV OSAKA SANGYO ,  YAMADA OSAMU

    Inventor： SAKURAI TOSHITAKA ,  NAGAI YUJI ,  YAMADA OSAMU

    IPC: C04B35/626 ,  C01B21/072

    Abstract: PROBLEM TO BE SOLVED: To obtain aluminum nitride by a self-propagating superheating synthesis reaction on an industrial scale. SOLUTION: This method for producing aluminum nitride comprises nitriding metal aluminum powder having 10-250 μm average particle diameter in an nitrogen atmosphere under 2-30 atmospheric pressure. The amount of oxygen contained in the metal aluminum powder is 0.05-1 wt.%. The bulk density of the metal aluminum powder is >=0.85 g/cm3. The metal aluminum powder is made into a powder layer having 10-80 mm thickness and the powder layer is ignited at least one end of the powder layer to advance a self-propagating superheating synthesis reaction.

    DIAGONAL CUTTING METHOD
    49.
    发明专利
    DIAGONAL CUTTING METHOD 审中-公开

    公开(公告)号：JP2003182730A

    公开(公告)日：2003-07-03

    申请号：JP2001402798

    申请日：2001-12-17

    Applicant: YAMADA OSAMU

    Inventor： YAMADA OSAMU

    IPC: B65D5/54 ,  B65D25/20

    Abstract: PROBLEM TO BE SOLVED: To provide a method for easily breaking a package by carrying out a process on the package so that a kerf is formed in a diagonal position when the package is broken to take out the contents from the package. SOLUTION: Three methods are provided for easy breakage of the package, the methods comprising; (1) a method of forming a diagonal cut beforehand on the package material, (2) a method of attaching a material of small strip beforehand to the package so that the small strip forms a diagonal cut on the package, and (3) a method of attaching a diagonal band beforehand to the package. By executing these methods, the contents can be easily taken out from the solid package. COPYRIGHT: (C)2003,JPO

    PRODUCTION OF INORGANIC COMPOUND BY COMBUSTION SYNTHESIS REACTION
    50.
    发明专利
    PRODUCTION OF INORGANIC COMPOUND BY COMBUSTION SYNTHESIS REACTION 失效

    公开(公告)号：JP2000262889A

    公开(公告)日：2000-09-26

    申请号：JP7813999

    申请日：1999-03-23

    Applicant: YAMADA OSAMU ,  UNIV OSAKA SANGYO

    Inventor： YAMADA OSAMU

    IPC: B01J19/12 ,  C22C1/00

    Abstract: PROBLEM TO BE SOLVED: To enable a combustion synthesis reaction in a reaction system at a reaction temperature in which the combustion synthesis reaction is impossible and to produce a high purity inorganic compound by making a laser beam having a specified wavelength irradiate raw material powder and starting the combustion synthesis reaction of the inorganic compound in a reaction system at a specified temperature. SOLUTION: By making a laser beam 0.5-500 W in output and above 770 nm in wavelength irradiate raw material powder, the combustion synthesis reaction of an inorganic compound in a reaction system of 500-1,700 deg.C reaction temperature is started. In this way, the combustion synthesis reaction can be carried out at temperatures as low as 500-1,700 deg.C, and the fine powder of the compound with particle growth controlled can be obtained. Accordingly, the high purity inorganic compound can be produced, and costs can be reduced by omitting a pulverization process. The raw material powder is a mixture of at least two kinds of powdered solid elements or a mixture of at least one kind of powdered solid element and the powdered compound. The raw material powder and a gaseous raw material are subjected to the combustion synthesis reaction.

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