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    • 3. 发明申请
    • Fixture of dental implant
    • 牙植入物夹具
    • US20050214715A1
    • 2005-09-29
    • US11075852
    • 2005-03-10
    • Norio KojimaKiyoshi Watanabe
    • Norio KojimaKiyoshi Watanabe
    • A61C8/00
    • A61C8/0022
    • To provide a fixture of a dental implant capable of acquiring osseointegration in an early stage, keeping a quiet state by sufficient initial stability with a jawbone at the time of the placing, and contributing to improve dental implant treatment results, in the fixture of the dental implant, a cylindrical collar part 1b includes a recessed or projected polygonal formed part 1a at a center of an intraoral side end or a truncated pyramid type abutment part 1a′ at the intraoral side end, a male screw 1c is provided to a top end of the outer periphery of an opposite intraoral side of the cylindrical collar part 1b, and an incomplete screw part 1f adjacent to said cylindrical collar part 1b of said male screw 1c has a root diameter smaller than a crest diameter D of a complete screw part and larger than a root diameter d of the complete screw part.
    • 为了提供能够在早期获得骨整合的牙科植入物的固定装置,通过在放置时用颚骨充分的初始稳定性保持安静状态,并有助于改善牙种植体治疗结果,在牙科的固定中 圆柱形凸缘部分1b包括在口内侧端部的中心处的凹入或突出的多边形形成部分1a,或在口内侧端部处的截头棱锥形邻接部分1a',外螺纹1c设置成 圆柱形凸缘部分1b的相对的口内侧的外周的顶端和与所述外螺纹1c的所述圆柱形凸缘部分1b相邻的不完全螺纹部分1f具有小于峰直径的根直径 D是完整的螺钉部分,大于整个螺钉部分的根直径d。
    • 4. 发明授权
    • Drill set for dental screw implant fixture with self-tap
    • 用于牙科螺钉植入物夹具的自动攻丝机
    • US07247020B2
    • 2007-07-24
    • US10653591
    • 2003-09-03
    • Masashi TakahashiYataro KomiyamaTakao OkadaNorio Kojima
    • Masashi TakahashiYataro KomiyamaTakao OkadaNorio Kojima
    • A61C3/02
    • A61B17/1673A61C8/0022A61C8/0089
    • A drill set for adjusting an implant hole for a self-tap dental screw implant fixture comprises with a diameter d2 at the point of a cutting blade equivalent to a diameter D3 of the tip end of the fixture, a diameter d1 at the back end of the blade equivalent to the maximum root diameter of a first male screw 1e or smaller, and a length l1 of the blade larger than the entire length L1 of the fixture 1, and the second drill 3 with a diameter d5 at the point of a tapered tip end cutting blade 3b equivalent to the diameter D3, and a diameter d3 at the back end of a tapered back end cutting blade 3a equivalent to the maximum root diameter of the first male screw 1e and smaller than the maximum crest diameter thereof, both the blades 3a, 3b forming two-step taper shape.
    • 用于调整自攻牙螺钉植入物夹具的植入孔的钻具组件包括在等于直径D 3的切割刀片的点处具有直径d 2 2 < 在叶片的后端处的直径d 1> 1等于第一外螺纹螺钉的最大根直径1e或更小,长度l 1 大于整个长度L 1 1的固定装置1的第二钻头3和锥形尖端点处的直径d 5的第二钻头3 末端切割刀片3b相当于直径D 3 3,并且锥形后端切割刀片3的后端处的直径d 3 3等于最大根直径 的第一外螺纹螺钉1e并小于其最大波峰直径,两个叶片3a,3b形成两级锥形。
    • 5. 发明授权
    • Casting of dental metals
    • 铸造牙科金属
    • US5168918A
    • 1992-12-08
    • US697619
    • 1991-05-09
    • Reiichi OkudaNorio KojimaKenichi IiyamaYoshinobu YamamuraYasutaro ItoShohei Hayashi
    • Reiichi OkudaNorio KojimaKenichi IiyamaYoshinobu YamamuraYasutaro ItoShohei Hayashi
    • A61C13/20B22D18/04B22D18/06B22D21/00B22D21/02B22D23/00
    • B22D21/005B22D18/04B22D18/06A61C13/20
    • A method for casting dental metals with a casting apparatus including a hermetically sealed casting chamber in which an arc electrode is located above, a crucible made of an electrically conductive material is positioned below the arc electrode, and a mold provided with a closed vent is disposed below the crucible, the method including by positioning a dental metal ingot on the crucible, evacuating the casting chamber to vacuum, feeding a small amount of an inert gas at such a pressure as to induce arc discharge all over the upper surface of the ingot, thereby melting the ingot placed on the crucible by arc discharge from the arc electrode, pouring the thus obtained molten metal into a mold through its inlet, and immediately feeding an additional amount of the inert gas into the casting chamber to increase its internal pressure to a level suitable for casting. Also the additional amount of the inert gas is rapidly fed into the casting chamber through a gas tank in the vicinity of the casting chamber.
    • 一种用铸造设备铸造牙科金属的方法,该浇铸装置包括一个气密电铸室,其中弧形电极位于上方,由导电材料制成的坩埚位于弧形电极的下面,并且设置有一个封闭的通气口的模具 该方法包括通过将坩埚上的牙金属锭定位在坩埚上,将铸造室抽真空,在铸锭上表面引起电弧放电的压力下供给少量的惰性气体, 从而通过从电弧电极的电弧放电熔化置于坩埚上的铸块,将由此获得的熔融金属通过其入口注入模具中,并立即将额外的惰性气体进料到铸造室中以将其内部压力增加到 水平适合铸造。 此外,惰性气体的附加量通过在铸造室附近的气罐快速进料到铸造室中。
    • 8. 发明授权
    • Temperature controller units for dental agar impression materials
    • 用于牙科印模材料的温度控制器单元
    • US5017790A
    • 1991-05-21
    • US414304
    • 1989-09-29
    • Norio Kojima
    • Norio Kojima
    • A61C9/00A61K6/10B01L7/02G05D23/24
    • A61C9/0026A61K6/10B01L7/02G05D23/1919G05D23/24
    • A temperature controller unit for dental agar impression materials is provided, which comprises in combination a box member having a lid disigned to be closed to shut off the outside air or prevent substantial entrance of the outside air, a heating device provided within the box member for heating the air within the box member to heat a dental agar impression material from a first heating temperature at which it is put in a complete sol state to a second heating temperature at which it remains in a sol state to take an intra-oral impression, a fan provided within the box member for circulating the air within the box member, a temperature detecting device provided within the box member for detecting the temperature of the air within the box member, a heating device controlling section provided within the box member for controlling the heating devices in receipt of a signal from the temperature detecting devices and a container holder provided within the box member for holding a plurality of containers filled therein with the dental agar impression material.
    • 提供了一种用于牙科印模材料的温度控制器单元,其包括具有盖子的盒构件组合以封闭以关闭外部空气或防止外部空气的大量进入;设置在盒构件内的加热装置, 加热盒构件内的空气以将牙科印模材料从其处于完全溶胶状态的第一加热温度加热至保持在溶胶状态的第二加热温度以进行口内印象, 风扇,其设置在所述盒构件内,用于使所述箱构件内的空气循环;温度检测装置,设置在所述盒构件内,用于检测所述盒构件内的空气的温度;加热装置控制部,设置在所述盒构件内, 接收来自温度检测装置的信号的加热装置和设置在箱体内用于保持多个的容器保持架 y的容器装满牙科印模材料。
    • 9. 发明申请
    • DENTAL IMPLANT FOR MAGNETIC ATTACHMENT
    • 用于磁性附件的牙科植入物
    • US20070020583A1
    • 2007-01-25
    • US11459192
    • 2006-07-21
    • Norio Kojima
    • Norio Kojima
    • A61C8/00A61C13/235
    • A61C8/005A61C8/0054A61C8/0068A61C8/0081
    • A dental implant for a magnetic attachment comprising a fixture (1) having a cylindrical guide part (1b) larger than outer diameter of an internal thread (1a) and plural engagement recessions (1c); an abutment (2) having a supporting surface (2c), a recessed part (2d) on a center of the supporting surface, and a contact surface (2e) to be contacted with the fixture (1) and having a cylindrical part (2f) protruding to be inserted into the guide part (1b) and a through hole having plural engagement protrusions to be engaged with the engagement recessions (1c); and a keeper with screw (3) having a flange part (3a) to be contacted with the supporting surface (2c) a cylindrical part (3b) to be inserted into the recessed part (2d) and an external thread (3d) to be screwed into the internal thread (1a) with the keeper being fitly inserted into the through hole of the abutment.
    • 一种用于磁性附件的牙科植入物,包括具有大于内螺纹(1a)的外径和多个接合凹陷(1c)的圆柱形引导部分(1b)的固定装置(1); 具有支撑表面(2c)的支座(2),在所述支撑表面的中心上的凹部(2d)和与所述固定件(1)接触的接触表面(2e),并且具有圆柱形 凸起部分(2f)突出以插入到引导部分(1b)中;以及通孔,具有多个接合突起以与接合凹部(1c)接合; 以及具有螺钉(3)的保持器,所述螺钉(3)具有与所述支撑表面(2c)接触的凸缘部分(3a),待插入到所述凹部(2d)中的圆柱形部分(3b)和外螺纹 3 d)拧入内螺纹(1a)中,保持器适配地插入基台的通孔中。
    • 10. 发明授权
    • Casting of dental metals
    • 铸造牙科金属
    • US5168917A
    • 1992-12-08
    • US697578
    • 1991-05-09
    • Reiichi OkudaNorio KojimaKenichi IiyamaYoshinobu YamamuraYasutaro ItoShohei Hayashi
    • Reiichi OkudaNorio KojimaKenichi IiyamaYoshinobu YamamuraYasutaro ItoShohei Hayashi
    • A61C13/20B22D18/04B22D18/06B22D21/00B22D21/02B22D23/00
    • B22D18/04B22D18/06B22D21/005A61C13/20
    • A method for casting dental metals with a casting apparatus including a melting chamber in which there are located an arc electrode above and a crucible formed of an electrically conductive material positioned below the arc electrode, and a mold chamber divided from the melting chamber by a partition wall having a through-hole at a position below the crucible and housing a mold box receiving a mold provided with an extending open vent positioned below the through-hole, the melting chamber communicating hermetically with the mold chamber through the mold, which is characterized by positioning a dental metal ingot on the crucible, vacuumizing the melting and mold chambers, feeding a small amount of an inert gas into the melting chamber at such a pressure as to induce arc discharge all over the upper surface of the ingot, thereby melting the ingot placed on the crucible by arc discharge from the arc electrode, pouring the thus obtained molten metal into the mold through its inlet, and immediately feeding an additional amount of the inert gas into the melting chamber to increase its internal pressure to a level suitable for casting.
    • 一种用铸造设备浇铸牙科金属的方法,所述铸造设备包括熔化室,其中位于弧形电极上方的坩埚和由位于电弧电极下方的导电材料形成的坩埚,以及由熔化室分隔开的隔室 壁在坩埚下方的位置具有通孔,并且容纳模具箱,所述模具箱容纳设置有位于所述通孔下方的延伸开口的模具,所述熔化室通过所述模具与所述模具室气密连通,其特征在于 将坩埚上的牙金属锭定位在坩埚上,对熔化模具室进行抽真空,将少量惰性气体以熔化室的上表面引起电弧放电的压力供给到熔化室中,从而熔化锭 通过从电弧电极的电弧放电放置在坩埚上,通过其入口将如此获得的熔融金属倒入模具中, 将额外量的惰性气体轻轻地加入到熔化室中以将其内部压力提高到适合铸造的水平。