Abstract: Through holes are formed at four peripheral edges of a plurality of semiconductor chip placement regions of an insulating substrate, except for coupling portions partially arranged thereat. A substrate sheet for semiconductor module is used in which connecting portions between inner lead portions and outer lead portions arranged on both surfaces of the substrate are formed in pattern on the side wall surface of the through hole. The semiconductor chip is mounted on each region, electrode terminals thereof and the inner lead portions are electrically connected to each other, the chip is sealed, and then the coupling portions are cut.

Abstract: The present invention provides an immunodeficient mouse (NOG mouse) suitable for engraftment, differentiation and proliferation of heterologous cells, and a method of producing such a mouse. This mouse is obtained by backcrossing a C.B-17-scid mouse with an NOD/Shi mouse, and further backcrossing an interleukin 2-receptor &ggr;-chain gene-knockout mouse with the thus backcrossed mouse. It is usable for producing a human antibody and establishing a stem cell assay system, a tumor model and a virus-infection model.

Abstract: Through holes are formed at four peripheral edges of a plurality of semiconductor chip placement regions of an insulating substrate, except for coupling portions partially arranged thereat. A substrate sheet for semiconductor module is used in which connecting portions between inner lead portions and outer lead portions arranged on both surfaces of the substrate are formed in pattern on the side wall surface of the through hole. The semiconductor chip is mounted on each region, electrode terminals thereof and the inner lead portions are electrically connected to each other, the chip is sealed, and then the coupling portions are cut.

Abstract: Through holes are formed at four peripheral edges of a plurality of semiconductor chip placement regions of an insulating substrate, except for coupling portions partially arranged thereat. A substrate sheet for semiconductor module is used in which connecting portions between inner lead portions and outer lead portions arranged on both surfaces of the substrate are formed in pattern on the side wall surface of the through hole. The semiconductor chip is mounted on each region, electrode terminals thereof and the inner lead portions are electrically connected to each other, the chip is sealed, and then the coupling portions are cut.

Abstract: A bone fixing pin comprising a pin body section (2) consisting of poly-L-lactic acid and a metallic perforating section (3) joined to the pin body section (2) and having a drill (4) at a head thereof, wherein at least the pin body section (2) is, preferably both the pin body section (2) and the perforating section (3) are, formed to have a cylindrical shape having the same diameter through the whole of the length direction thereof. Accordingly, the bone fixing pin can be embedded into (buried into) bone fragments to be fixed easily and smoothly. In addition, loose is never caused to occur after the embedding. The embedded pin body section (2) consisting of poly-L-lactic acid is absorbed in an organism to be eliminated after synostosis.

Abstract: A magnetic plastic rotor disk manufacturing apparatus, includes an injection device for injecting a magnetic plastic material containing a synthetic resin matrix and a magnetic powder; a mold for molding the magnetic plastic material injected thereinto from the injection device, and a device for generating a magnetic field and magnetizing the magnetic powder in a direction along a diameter of the magnetic plastic rotor disks. The mold includes a three-plate type mold constructed of two retainer plates and a single runner stripper plate. One of the retainer plates is formed with a plurality of pin gates corresponding to the cavities so as to supply the magnetic plastic material through the pin gates into the cavities.

Abstract: A thrombus control agent comprising a human granulocyte colony stimulating factor (human G-CSF) as an active ingredient and a pharmaceutically acceptable carrier, a method of treating thrombi by administering the thrombus control agent to a patient bearing thrombi formed in the arterial and venous vessels, and use of human G-CSF for preparing the thrombus control agent are disclosed.The inventors found that human G-CSF is useful for treating thrombi and developed the use of human G-CSF for this purpose although nobody has clearly reported this type of pharmacological activity of human G-CSF.

Abstract: A magnetic plastic rotor disk manufacturing apparatus according to the present invention is capable of manufacturing a plurality of magnetic plastic rotor disks having equal desired surface magnetic flux density distribution characteristics in a single molding cycle.