公开(公告)号：US06170995B2

公开(公告)日：2001-01-09

申请号：US09194817

申请日：1999-07-23

申请人： Seiko Mitachi ,  Ryo Nagase ,  Yoshiaki Takeuchi ,  Takashi Tanabe ,  Akihiko Sakamoto ,  Hirokazu Takeuchi ,  Masayuki Ninomiya ,  Katsumi Inada

发明人： Seiko Mitachi ,  Ryo Nagase ,  Yoshiaki Takeuchi ,  Takashi Tanabe ,  Akihiko Sakamoto ,  Hirokazu Takeuchi ,  Masayuki Ninomiya ,  Katsumi Inada

IPC分类号： G02B636

CPC分类号： G02B6/3854

摘要： In order to provide a ferrule for an optical-fiber connector used for good organization of an optical communication network, the ferrule for an optical-fiber connector is made of a crystallized glass having a composition which consists essentially of, by weight percent, 60-70% of SiO2, 16-25% of Al2O3, 1.5-3% of Li2O, 0.5-2.5% of MgO, 1.3-4.5% of TiO2, 0.5-3% of ZrO2, 2-6.5% of TiO2+ZrO2, 1-5.5% of K2O, 0-7% of ZnO, and 0-3% of BaO. The crystallized glass includes 30-70 volume % precipitation of &bgr;-spodumene solid solution or &bgr;-quartz solid solution having an average grain size not greater than 2 &mgr;m. In addition, the crystallized glass has a bend strength of 200 MPa or more and a thermal expansion coefficient of −10˜50×10−7/° C. at a temperature between −50 and 150° C.

摘要翻译： 为了提供用于光通信网络的良好组织的光纤连接器的套圈，用于光纤连接器的套圈由结晶玻璃制成，所述结晶玻璃的组成基本上由重量％组成， SiO2的70％，Al2O3的16〜25％，Li2O的1.5〜3％，MgO的0.5〜2.5％，TiO 2的1.3〜4.5％，ZrO 2：0.5〜3％，TiO 2 + ZrO 2： -5.5％的K2O，0-7％的ZnO和0-3％的BaO。 结晶玻璃包括平均粒径不大于2μm的β-锂辉石固溶体或β-石英固溶体的30-70体积％沉淀。 此外，在-50〜150℃的温度下，结晶化玻璃的弯曲强度为200MPa以上，热膨胀系数为-10〜50×10 -7 /℃。

公开(公告)号：US4782497A

公开(公告)日：1988-11-01

申请号：US938183

申请日：1986-12-05

申请人： Noriaki Sasaki ,  Hiroshi Igarashi ,  Noboru Endo ,  Katsumi Inada ,  Toshio Nakamura ,  Hirokazu Takeuchi

发明人： Noriaki Sasaki ,  Hiroshi Igarashi ,  Noboru Endo ,  Katsumi Inada ,  Toshio Nakamura ,  Hirokazu Takeuchi

IPC分类号： C03B5/00 ,  C03B5/027 ,  G21F9/30

CPC分类号： G21F9/305 ,  C03B5/005 ,  C03B5/0275 ,  Y02P40/52

摘要： An electric melting furnace for glassifying high-radioactive waste characterized in that, in a furnace for melting glass containing platinum-group elements which has an outlet of glass at the bottom part of a melting tank, the bottom of the furnace surrounding the outlet has an inclination of more than 30.degree. and not more than 70.degree. with respect to the horizontal plane toward the cullet, and the distance l.sub.1 between a surface-inside opening part of the outlet and bottom ends of at least a pair of electrodes (3a, 3b) for supplying most of power required for glass melting is a half or more, but not exceeding, of the distance (l.sub.2) between the electrodes (3a, 3b).

摘要翻译： 一种用于玻璃化高放射性废物的电熔炉，其特征在于，在熔融槽底部具有玻璃出口的含有铂族元素的玻璃熔化炉中，围绕出口的炉底部具有 倾斜度相对于水平面朝向碎玻璃大于30度且不大于70度，以及至少一对电极（3a，3b）的出口的表面内侧开口部分和底端之间的距离l1 ）用于提供玻璃熔融所需的大部分功率是电极（3a，3b）之间的距离（l2）的一半或更多，但不超过其中之一。

公开(公告)号：US06322256B1

公开(公告)日：2001-11-27

申请号：US09444396

申请日：1999-11-22

申请人： Katsumi Inada ,  Hirokazu Takeuchi ,  Nagaharu Nakajima ,  Masanobu Minami ,  Tadashi Seto ,  Yoshimasa Yamaguchi ,  Masanori Wada ,  Kazunari Yamamoto ,  Sotohiro Nakajima

发明人： Katsumi Inada ,  Hirokazu Takeuchi ,  Nagaharu Nakajima ,  Masanobu Minami ,  Tadashi Seto ,  Yoshimasa Yamaguchi ,  Masanori Wada ,  Kazunari Yamamoto ,  Sotohiro Nakajima

IPC分类号： G02B636

CPC分类号： G02B6/255 ,  G02B6/2804 ,  G02B6/30 ,  G02B6/3839 ,  G02B6/3854 ,  G02B6/3861 ,  G02B6/3885

摘要： In the capillary tube 22, the cross section of the outer surface is substantially square, and the cross section of the insertion hole 23 is substantially square. Sides La, Lb of the outer surface have high dimensional accuracy and the insertion hole 23 is made to allow two optical fibers 5, 6 to be inserted while adjoining each other and arranged in order therein. The phases of the outer surface and the insertion hole 23 are relatively offset with each other, so that angles &thgr;a, &thgr;b which the sides 23a, 23b of the insertion hole 23 form with flat surfaces 22a, 22b of the outer surface are acute angles of substantially 45°±0.5°. Consequently, the flat surface 22a becomes substantially parallel to the center line M that connects the centers of the cores 5a, 6a of the two optical fibers 5, 6 inserted in the insertion hole 23, and the flat surface 22b becomes substantially perpendicular to the center line M.

摘要翻译： 在毛细管22中，外表面的截面基本上是正方形，并且插入孔23的横截面基本上是正方形。 外表面的侧面La，Lb具有高尺寸精度，并且插入孔23被制成允许两个光纤5,6彼此相邻地插入并且依次布置。 外表面和插入孔23的相位彼此相对偏移，使得角度θa，插入孔23的侧面23a，23b与外表面的平坦表面22a，22b形成的角度为锐角 大致为45°±0.5°。 因此，平面22a大致平行于插入插入孔23中的两根光纤5,6的芯5a，6a的中心的中心线M，平面22b大致垂直于中心 线M.