公开(公告)号：US4258318A

公开(公告)日：1981-03-24

申请号：US969125

申请日：1978-12-13

Applicant: Yasuyuki Furukawa ,  Yoshihisa Fujii ,  Hitoshi Tanaka ,  Tetsuya Hirota

Inventor： Yasuyuki Furukawa ,  Yoshihisa Fujii ,  Hitoshi Tanaka ,  Tetsuya Hirota

IPC: G01N27/82 ,  G01N27/90 ,  G01R33/12

CPC classification number: G01N27/82 ,  G01N27/9013

Abstract: A detector for magnetically detecting flaws on the inner surface of a pipe of magnetizable material comprising a magnetizing assembly having exciting magnets and movable longitudinally along the exterior of the pipe and a detecting assembly movable longitudinally along the interior of the pipe. The magnetizing and detecting assemblies are opposite and close to each other through the wall of the pipe and movable longitudinally of the pipe in a synchronized manner to ensure highly accurate flaw detection.

Abstract translation: 一种用于磁性检测可磁化材料管的内表面上的缺陷的检测器，包括具有激励磁体并沿着管的外部纵向移动的磁化组件和沿着管内部可纵向移动的检测组件的磁化组件。 磁化和检测组件相对并且彼此靠近管道的壁并以同步的方式纵向移动，以确保高度准确的探伤。

公开(公告)号：US4217548A

公开(公告)日：1980-08-12

申请号：US968703

申请日：1978-12-12

Applicant: Yasuyuki Furukawa ,  Yoshihisa Fujii ,  Hitoshi Tanaka ,  Tetsuya Hirota

Inventor： Yasuyuki Furukawa ,  Yoshihisa Fujii ,  Hitoshi Tanaka ,  Tetsuya Hirota

IPC: G01N27/82 ,  G01N27/90 ,  G01R33/12

CPC classification number: G01N27/9013 ,  G01N27/82

Abstract: A detector for magnetically detecting flaws on the inner surface of a pipe of magnetizable material comprises a magnetizing assembly having exciting magnets and movable longitudinally along the interior of the pipe and a detecting assembly movable longitudinally along the exterior of the pipe. The magnetizing and detecting assemblies are opposite and close to each other through the wall of the pipe and movable longitudinally of the pipe in a synchronized manner to ensure highly accurate flaw detection.

Abstract translation: 用于磁性检测可磁化材料的管的内表面上的缺陷的检测器包括具有激励磁体并沿着管的内部纵向移动的磁化组件和沿着管的外部纵向移动的检测组件。 磁化和检测组件相对并且彼此靠近管道的壁并以同步的方式纵向移动，以确保高度准确的探伤。

公开(公告)号：US4216103A

公开(公告)日：1980-08-05

申请号：US27834

申请日：1979-04-06

Applicant: Shinobu Fujiwara ,  Kiyoshi Furukawa ,  Nobuaki Kikuchi ,  Osamu Iizawa ,  Hitoshi Tanaka ,  Hisayoshi Ueoka

Inventor： Shinobu Fujiwara ,  Kiyoshi Furukawa ,  Nobuaki Kikuchi ,  Osamu Iizawa ,  Hitoshi Tanaka ,  Hisayoshi Ueoka

IPC: C04B35/497 ,  H01B3/12

CPC classification number: C04B35/497

Abstract: A novel ceramic composition exhibiting a solid solution structure of Pb(Fe.sub.1/2 Nb.sub.178 )O.sub.3 -Pb(Mg.sub.1/3 Ta.sub.2/3)O.sub.3, can be sintered at a low sintering temperature; have a high insulation resistance; have a relatively high dielectric constant in the high dielectric type ceramic dielectrics, and; have a low dielectric loss.A particular amount of the additives, i.e., Pb(Mn.sub.1/2 W.sub.1/2)O.sub.3, Pb(Mn.sub.1/3 Nb.sub.170 )O.sub.3, MnO, Pb(Mn.sub.1/3 Ta.sub.170 )O.sub.3, Li.sub.2 O, Cr.sub.2 O.sub.3 and CeO.sub.2, is added into the composition mentioned above.

Abstract translation: 表现出Pb（Fe1 / 2Nb178）O3-Pb（Mg1 / 3Ta2 / 3）O3的固溶体结构的新型陶瓷组合物可以在低烧结温度下烧结; 具有很高的绝缘电阻; 在高介电常数陶瓷电介质中具有较高的介电常数， 具有低介电损耗。 在上述组合物中加入特定量的添加剂，即Pb（Mn1 / 2W1 / 2）O3，Pb（Mn1 / 3Nb170）O3，MnO，Pb（Mn1 / 3Ta170）O3，Li2O，Cr2O3和CeO2 。

公开(公告)号：US4017320A

公开(公告)日：1977-04-12

申请号：US633237

申请日：1975-11-19

Applicant: Shinobu Fujiwara ,  Hitoshi Tanaka

Inventor： Shinobu Fujiwara ,  Hitoshi Tanaka

IPC: C04B35/47 ,  H01B3/12 ,  C04B35/00 ,  C04B35/46

CPC classification number: H01B3/12 ,  C04B35/47

Abstract: A ceramic dielectric composition is provided including 30 to 94% by mol of SrTiO.sub.3, 1 to 22% by mol of Bi.sub.2 O.sub.3 and 5 to 69% by mol of TiO.sub.2, and further including 0.1 to 20% by weight of MgO with respect to the total weight of the above-mentioned three compounds SrTiO.sub.3, Bi.sub.2 O.sub.3 and TiO.sub.2, whereby the ceramic dielectric composition has a high dielectric constant and a low dielectric loss and further the variations of the dielectric constant and the dielectric loss with respect to the variation of an applied voltage, are respectively, very small.

Abstract translation: 提供一种陶瓷电介质组合物，其包含30至94摩尔％的SrTiO 3，1至22摩尔％的Bi 2 O 3和5至69摩尔％的TiO 2，并且还包括相对于总量的0.1至20重量％的MgO 上述三种化合物SrTiO 3，Bi 2 O 3和TiO 2的重量，由此陶瓷电介质组合物具有高介电常数和低介电损耗，并且还有相对于施加电压变化的介电常数和介电损耗的变化 ，分别很小。

公开(公告)号：US4014707A

公开(公告)日：1977-03-29

申请号：US594017

申请日：1975-07-08

Applicant: Hitoshi Tanaka ,  Hitoshi Masumura ,  Shinobu Fujiwara

Inventor： Hitoshi Tanaka ,  Hitoshi Masumura ,  Shinobu Fujiwara

IPC: C04B35/46 ,  C04B35/468 ,  H01B3/02 ,  H01B3/12 ,  H01B1/06

CPC classification number: H01B3/025 ,  C04B35/4682

Abstract: A dielectric ceramic composition comprises as principle constituents, 86 - 99.6 mole % of barium titanate, 0.2 - 10 mole % of niobium pentaoxide and 0.2 - 4 mole % of cerium oxide.

Abstract translation: 介电陶瓷组合物包含86至99.6摩尔％的钛酸钡，0.2-10摩尔％的五氧化铌和0.2-4摩尔％的氧化铈作为主要成分。