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    • 1. 发明授权
    • Vacuum refining method for molten steel
    • 钢水真空精炼法
    • US5902374A
    • 1999-05-11
    • US817269
    • 1997-03-28
    • Shinya KitamuraKimitoshi YonezawaKenichiro MiyamotoShinji SasakawaKunihiko Fujiwara
    • Shinya KitamuraKimitoshi YonezawaKenichiro MiyamotoShinji SasakawaKunihiko Fujiwara
    • C21C7/00C21C7/04C21C7/10
    • C21C7/0006C21C7/04C21C7/10
    • The present invention relates to a molten steel refining method for refining molten steel, the carbon content of which is not more than 0.1 weight %, by blowing oxygen gas for decarburization at a blowing speed so that a cavity, the depth of which is 150 to 400 mm, can be formed on the surface of molten steel in a straight barrel type vacuum refining apparatus in which a straight barrel type vacuum vessel having no vessel bottom and a ladle are arranged. When necessary, the above decarburizing processing conducted by blowing oxygen gas is combined with: an Al heating process in which Al added into the vacuum vessel is burned by oxygen gas blown into the vacuum vessel at a blowing speed such that the cavity depth can be 50 to 400 mm; a degassing treatment conducted in a high vacuum condition; a desulfurizing treatment in which a desulfurizing agent is blown into the vacuum vessel; or a burner heating treatment in which a combustion improving agent is blown together with oxygen gas, wherein each treatment except for the high vacuum degassing treatment is conducted in a degree of vacuum of 100 to 400 Torr.
    • PCT No.PCT / JP96 / 02173 Sec。 371日期1997年3月28日 102(e)1997年3月28日PCT PCT 1996年8月6日PCT公布。 第WO97 / 05291号公报 日期:1997年2月13日本发明涉及一种用于精炼钢水的钢水精炼方法,其中碳含量不超过0.1重量%,通过以吹制速度吹入用于脱碳的氧气,使得腔体的深度 可以在直筒型真空精炼装置中在钢水表面上形成150-400mm,其中设置有没有容器底部和钢包的直筒型真空容器。 必要时,将通过吹入氧气进行的上述脱碳处理与以下方式组合:Al加热过程,其中,通过以鼓风速度吹入真空容器中的氧气将Al添加到真空容器中,使得腔深度可以为50 至400毫米; 在高真空条件下进行脱气处理; 将脱硫剂吹入真空容器内的脱硫处理; 或燃烧改善剂与氧气一起吹送的燃烧器加热处理,除了高真空脱气处理以外的各处理是在真空度为100〜400托的范围内进行的。
    • 2. 发明授权
    • Optical connector
    • 光连接器
    • US08408816B2
    • 2013-04-02
    • US12727075
    • 2010-03-18
    • Kunihiko FujiwaraAkito NishimuraYukio Hayashi
    • Kunihiko FujiwaraAkito NishimuraYukio Hayashi
    • G02B6/36
    • G02B6/4214G02B6/3831G02B6/3885G02B6/4292
    • An optical connector, assembled to a front end of an optical fiber and attached to an optical component that is provided with an optical element having an optical axis different from that of the optical fiber, includes a main body having a connection end surface, and a reflective portion changing an angle of an optical path. At least one of a fitting protruding portion and a fitting recessed portion are provided so as to be capable of positioning the optical connector to the optical component by respectively fitting a fitted protruding portion and a fitted recessed portion provided on the optical component in each of a first region on the front end side and a second region on the opposite side thereto with the optical path interposed therebetween.
    • 组装到光纤前端并安装在光学部件上的光连接器包括:具有不同于光纤的光轴的光学元件的光学元件;具有连接端面的主体和 反射部分改变光路的角度。 设置嵌合突起部和嵌合凹部中的至少一个,以便能够通过分别将设置在光学部件上的嵌合突起部和嵌合凹部设置在光学部件上而将光连接器定位于光学部件 前端侧的第一区域和其相对侧的第二区域,其间插入光路。
    • 7. 发明申请
    • OPTICAL CONNECTOR CLEANING TOOL AND OPTICAL COMPONENT CLEANING TOOL
    • 光学连接器清洁工具和光学元件清洁工具
    • US20080034519A1
    • 2008-02-14
    • US11836501
    • 2007-08-09
    • Kunihiko Fujiwara
    • Kunihiko Fujiwara
    • A47L25/00
    • G02B6/381B08B1/008B08B2240/02G02B6/3866
    • A cleaning tool is provided wherein a head unit (4) that is equipped with a supporting portion main body (44), a circular arc-shaped tilt spring (41) that protrudes from this supporting portion main body (44), and a head component (23) that is supported on a protruding distal end (411) of the tilt spring (41) is incorporated into a distal end portion of a protruding portion that protrudes from a tool main body, and wherein the head component (23) is tilted such that the side thereof that protrudes from the protruding distal end (411) of the tilt spring (41) towards the curve apex portion (412) of the tilt spring (41) protrudes towards the rear side, and the head component (23) protrudes towards the front side as it moves towards the opposite side from the protruding distal end (411).
    • 提供了一种清洁工具,其中装备有支撑部分主体(44)的头单元(4),从该支撑部分主体(44)突出的圆弧形倾斜弹簧(41) 支撑在倾斜弹簧(41)的突出的远端(411)上的部件(23)结合到从工具主体突出的突出部分的远端部分中,并且其中头部部件(23)是 倾斜使得从倾斜弹簧(41)的突出的远端(411)朝向倾斜弹簧(41)的弯曲顶点部分(412)突出的一侧朝向后侧突出,并且头部件(23 )当从突出的远端(411)向相反侧移动时朝向前侧突出。
    • 8. 发明申请
    • Optical transceiver and optical connector
    • 光收发器和光连接器
    • US20060210225A1
    • 2006-09-21
    • US10554513
    • 2004-04-30
    • Kunihiko FujiwaraAkito NishimuraYukio HayashiTetsuo Nozawa
    • Kunihiko FujiwaraAkito NishimuraYukio HayashiTetsuo Nozawa
    • G02B6/36
    • G02B6/4292G02B6/4214G02B6/4249
    • An optical transceiver 10 includes an optical device 16 which is provided upon a substrate 11, an optical connector 14 which is connected to an optical fiber 15a, and a connector holder 13 for optically connecting together the optical device and the optical connector 14. The connector holder 13 includes an engagement means 13c which holds the optical connector 14. The engagement means 13c holds the optical connector 14 when the optical connector 14 is pressed in towards the substrate. The optical connector 14 supports the optical fiber 15a so that the optical axis of the optical fiber 15a subtends a fixed angle with respect to the optical axis of the optical device 16. And the optical connector 14 includes a mirror 14g for optically connecting between the optical device 16 and the optical fiber 15a.
    • 光收发器10包括设置在基板11上的光学装置16,连接到光纤15a的光连接器14和用于将光学装置和光连接器14光学连接在一起的连接器支架13。 连接器保持器13包括保持光连接器14的接合装置13c。 当光连接器14被压向基板时,接合装置13c保持光连接器14。 光连接器14支撑光纤15a,使得光纤15a的光轴相对于光学装置16的光轴相对固定角度。 并且光连接器14包括用于在光学装置16和光纤15a之间光学连接的反射镜14g。