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    Luminescent materials
    3.
    发明专利
    Luminescent materials 未知

    公开(公告)号：GB2353791B

    公开(公告)日：2003-08-20

    申请号：GB0021321

    申请日：2000-08-30

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： NAGANUMA KATSUYOSHI ,  KAMIYA AKIRA ,  ZHU JUN ,  WATAZU AKIRA

    IPC: C09K11/08 ,  C09K11/67 ,  C09K11/55

    Abstract: The present invention provides a novel orange light-emitting phosphorescent material that is non-toxic and chemically stable in air, and this invention relates to a Ti-CaO phosphorescent material, produced from a starting material of calcium oxide (CaO), or of calcium carbonate (CaCO3), calcium hydroxide(Ca(OH)2), calcium sulfate(CaSO4), calcium oxalate (CaC2O4), or other compound to be converted to CaO through heating in air, by a process of bringing this starting material into contact with metallic titanium (Ti) and conducting heat treatment thereof in vacuo or in an atmosphere that is not reactive with Ti such as argon gas, or by a process of mechanical alloying and the like of CaO and Ti.

    Luminescent materials
    5.
    发明专利
    Luminescent materials 未知

    公开(公告)号：GB2353791A

    公开(公告)日：2001-03-07

    申请号：GB0021321

    申请日：2000-08-30

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： NAGANUMA KATSUYOSHI ,  KAMIYA AKIRA ,  ZHU JUN ,  WATAZU AKIRA

    IPC: C09K11/08 ,  C09K11/67 ,  C09K11/55

    Abstract: A novel orange light-emitting Ti-CaO phosphorescent material is produced from a starting material of calcium oxide (CaO), or of calcium carbonate (CaCO 3 ), calcium hydroxide(Ca(OH) 2 ), calcium sulfate(CaSO 4 ), calcium oxalate (CaC 2 O 4 ), or other compound to be converted to CaO through heating in air, by a process of bringing this starting material into contact with metallic titanium and conducting heat treatment thereof in vacuo or in an atmosphere that is not reactive with Ti such as argon gas, or by a process of mechanical alloying and the like of CaO and Ti.

    PHOSPHORESCENT SUBSTANCE
    7.
    发明专利
    PHOSPHORESCENT SUBSTANCE 失效

    公开(公告)号：JP2001064647A

    公开(公告)日：2001-03-13

    申请号：JP24625199

    申请日：1999-08-31

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： KAMIYA AKIRA ,  SHU TAKASHI ,  TOTSU AKIRA ,  NAGANUMA KATSUYOSHI

    IPC: C09K11/08 ,  C09K11/67

    Abstract: PROBLEM TO BE SOLVED: To obtain a phosphorescent substance having no toxicity, being chemically stable even in air, emitting an orange light. SOLUTION: This phosphorescent substance is obtained by adding Ti to CaO and which is obtained by bringing a substance to be converted into CaO by heating in air, such as calcium oxide(CaO), calcium carbonate(CaCO3), calcium hydroxide(Ca(OH)2), calcium sulfate(CaSO4), calcium oxalate(CaC2O4), or the like, as a raw material into contact with metal titanium(Ti), heat-treating the resultant substance in vacuum or in an atmosphere of argon gas, or the like, having no reactivity with Ti or subjecting CaO and Ti to a mechanical alloying method, or the like.

    ARTIFICIAL DENTAL ROOT FOR MITTGATING OUTER FORCE AND IMPACT
    8.
    发明专利
    ARTIFICIAL DENTAL ROOT FOR MITTGATING OUTER FORCE AND IMPACT 失效

    公开(公告)号：JP2000279429A

    公开(公告)日：2000-10-10

    申请号：JP9106899

    申请日：1999-03-31

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： TOTSU AKIRA ,  NAGANUMA KATSUYOSHI ,  KAMIYA AKIRA ,  SHU TAKASHI

    IPC: A61C8/00 ,  A61C13/08

    Abstract: PROBLEM TO BE SOLVED: To provide an artificial dental root by which an outer force or an impact on an artificial tooth is not directly transmitted to an alveolar bone. SOLUTION: The artificial root is constituted of an implant part to be buried in the alveolar bone and a dental prosthesis part where the artificial tooth is attached. A male type uniting part for uniting with the dental prosthesis part is arranged at the oral cavity side of the implant part, a female type uniting part for uniting with the implant part is in the dental prosthesis part, a strength adjusting part being elastically deformation possible is in the female type uniting part, the male type part is inserted to the female type part in the case of usage for union and the circumference of the union part of the dental prosthesis part is elastically deformed when the outer force of the impact is added to the artificial tooth in the case of occlusion or mastication so that a structure without the direct transmission of the outer force or the impact to the alveolar bone is obtained. Thus, a physical burden when the artificial root is used is relieved and also a problem such as the destruction of the alveolar bone itself accompanying the use of the artificial root is solved.

    PLANAR TYPE ARTIFICIAL DENTAL ROOT
    9.
    发明专利
    PLANAR TYPE ARTIFICIAL DENTAL ROOT 失效

    公开(公告)号：JP2000083971A

    公开(公告)日：2000-03-28

    申请号：JP27653898

    申请日：1998-09-10

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： NAGANUMA KATSUYOSHI ,  KAMIYA AKIRA ,  TOTSU AKIRA ,  NONAMI TORU ,  KATO MAKOTO

    IPC: A61C8/00

    Abstract: PROBLEM TO BE SOLVED: To lessen the physical burden on a patient at the time of attachment of an artificial dental root, to lessen the occurrence of inflammation after the attachment and to easily fix the artificial dental root to the alveolar bone by providing a planar end with a hook for fixing for the purpose of fixation of the artificial dental root to the alveolar bone and prevention of dislodgment. SOLUTION: The artificial dental root is used by fixing the hook 3 for fixing disposed over the entire part or part at the front end of the planar part 2 into grooves previously chipped and disposed at the prescribed positions on the flank of the alveolar bone 4 and fixing the artificial dental root to the alveolar bone 4. The transverse length of the planar part 2 is in a range of 8 to 20 mm and the longitudinal length suffices with a range of approximately 5 to 10 mm both on the right and left from the center of a post part 1 inclusive of the hook 3 for fixing at the center of the shape of the bent planar part 2. The hook 3 for fixing entering the grooves on the flank of the alveolar bone 4 plays the role of fixing the artificial dental root and the force acting on the post part 1 may be received at over the entire part of the contact surface of the planar part 2 and the alveolar bone 4 if not only the shape of the hook 3 for fixing but the bone side shape of the planar part 2 coincide with the shape of the alveolar bone 4 in ruggedness inversion.

    PRODUCTION OF MAGNESIUM ALLOY MOLDING
    10.
    发明专利
    PRODUCTION OF MAGNESIUM ALLOY MOLDING 失效

    公开(公告)号：JPH10317077A

    公开(公告)日：1998-12-02

    申请号：JP14870197

    申请日：1997-05-21

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： NAGANUMA KATSUYOSHI ,  KAMIYA AKIRA ,  KATO MAKOTO

    IPC: B22D17/00 ,  C22C1/02 ,  C22C23/02

    Abstract: PROBLEM TO BE SOLVED: To provide a method of production of a magnesium alloy molding, capable of producing a molding at a lower temp. than heretofore while obviating the necessity of strict temp. control at the time of molding and also capable of minimizing the risk of fire and explosion. SOLUTION: A molten magnesium alloy is introduced into the cavity of a metal mold. At this time, in the case where the molten alloy is composed of a combination of a magnesium alloy containing at least either of aluminum and lithium, pure magnesium, and, if necessary, a pure metal other than magnesium and an alloy of different composition, the introduction of the molten metal is performed in the solid-liquid coexisting state produced by carrying out heating up to a temp. in the range between the temp. at which at least either of the pure metal other than magnesium and the alloy is perfectly liquefied and the melting point of pure magnesium. In the case where the molten alloy is composed of a combination of magnesium alloys different in composition and, if necessary, a pure metal other than magnesium and an alloy of different composition, the introduction of the molten metal is performed in the solid-liquid coexisting state produced by carrying out heating up to a temp. in the range between the temp. at which either of the pure metal and the alloy is perfectly liquefied and the solidus line of either of the magnesium alloys. By this method, the magnesium alloy molding of desired shape can be obtained.

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