公开(公告)号：US06360606B1

公开(公告)日：2002-03-26

申请号：US09267562

申请日：1999-03-12

申请人： Toshikazu Hirota ,  Takao Ohnishi ,  Keizo Miyata ,  Kazuyoshi Shibata

发明人： Toshikazu Hirota ,  Takao Ohnishi ,  Keizo Miyata ,  Kazuyoshi Shibata

IPC分类号： G01N1116

摘要： A piezoelectric sensor device has a piezoelectric body vibrator consisting of the piezoelectric body which is sandwiched by a pair of electrodes, a power source which applies a voltage to the piezoelectric body vibrator so as to get excited for vibration, means for monitoring electric constants to detect changes in electric constants accompanied by vibration of the piezoelectric body. The change in electric constants in the piezoelectric body is detected as a change in frequency for vibration of the piezoelectric body corresponding to an electric constant under the determined conditions. The piezoelectric sensor device has a means to obtain the frequency value from frequencies at not less than two points giving a determined electric constant. According to the piezoelectric sensor device the dispersion in measured values due to change in vibration aptness of vibration system and the polarization state of piezoelectric body vibrator can be made smaller.

公开(公告)号：US5969532A

公开(公告)日：1999-10-19

申请号：US841105

申请日：1997-04-30

申请人： Minoru Usui ,  Takahiro Katakura ,  Takaichi Wada ,  Motonori Okumura ,  Nobuo Takahashi ,  Natsumi Shimogawa ,  Keizo Miyata

发明人： Minoru Usui ,  Takahiro Katakura ,  Takaichi Wada ,  Motonori Okumura ,  Nobuo Takahashi ,  Natsumi Shimogawa ,  Keizo Miyata

IPC分类号： G01N27/20

CPC分类号： G01N27/205

摘要： A method of inspecting a crack in a ceramic substrate that is not exposed on the surface. The method can detect all cracks and make objective judgement possible by expressing the inspection result as numerical data. Conductors are disposed on both faces of a ceramic substrate, wherein one of the conductors is a conductive liquid; the insulation resistance value or an electric property dependent on the insulation resistance is measured with the conductive liquid or other conductors electrically connected to the conductive liquid which are used as electrodes.

摘要翻译： 检查未暴露在表面上的陶瓷基板中的裂纹的方法。 该方法可以检测所有裂纹，并通过将检验结果表示为数值来进行客观判断。 导体设置在陶瓷基板的两个面上，其中一个导体是导电液体; 绝缘电阻值或取决于绝缘电阻的电特性是用与电极连接的导电液体导电液体或其他导体进行测量的。

公开(公告)号：US4667663A

公开(公告)日：1987-05-26

申请号：US630646

申请日：1984-07-13

申请人： Keizo Miyata

发明人： Keizo Miyata

IPC分类号： A61B17/58 ,  A61B17/72 ,  A61F5/04

CPC分类号： A61B17/7225 ,  A61B17/7208 ,  A61B17/7266

摘要： Disclosed is an intramedullary nail used to unite the separated fragments of a fractured long bone. It has a C-shaped bar-like appearance having a flat front section seen from the direction of insertion as well as a connecting part and, if necessary, a slit in its distal portion. The flat section prevents the rotation of the nail and supports load; the connecting part is used to extract the nail out from the medullary canal; and a stopper for prevention of the rotation is attached to the slit. Such a nail exhibits a stable fixing effect.

摘要翻译： 公开了用于联合断裂的长骨的分离的碎片的髓内钉。 它具有从插入方向看到的具有平坦前部的C形棒状外观以及连接部分，如果需要，其远端部分具有狭缝。 扁平部分防止指甲旋转并支撑载荷; 连接部分用于从髓质管中提取指甲; 并且用于防止旋转的止动件附接到狭缝。 这样的指甲具有稳定的固定效果。