公开(公告)号：US5536777A

公开(公告)日：1996-07-16

申请号：US202098

申请日：1994-02-25

申请人： Izumi Ishikawa ,  Hiroyuki Miyata ,  Thoru Nakatsuka ,  Kazuhiko Goto ,  Kenji Matsui ,  Shiro Nakayama ,  Tohru Takahashi ,  Mitutaka Tanida ,  Toshio Niwa

发明人： Izumi Ishikawa ,  Hiroyuki Miyata ,  Thoru Nakatsuka ,  Kazuhiko Goto ,  Kenji Matsui ,  Shiro Nakayama ,  Tohru Takahashi ,  Mitutaka Tanida ,  Toshio Niwa

IPC分类号： C08K5/14 ,  H01B3/44 ,  C08K3/00

CPC分类号： H01B3/441 ,  C08K5/14

摘要： A polyethylene composition which is useful in insulations and joints of extra-high voltage power cables, and in which a cross-linking agent, comprising an organic peroxide subjected to purification processing, and an antioxidant, are blended, wherein the cross-linked composition has a dielectric loss tangent (tan.delta.) of less than or equal to 0.07% at a temperature of 90.degree. C. and under an electric field stress of 20 kV/mm. This polyethylene composition exhibits little dielectric loss, even at high temperatures or high electric field stresses, and is optimally employed in insulations and joints for extra-high voltage power cables of 275 kV or more.

摘要翻译： 可用于超高压电力电缆的绝缘和接头中的聚乙烯组合物，其中包含经过净化处理的有机过氧化物和抗氧化剂的交联剂，其中交联组合物具有 在90℃的温度和20kV / mm的电场应力下的介电损耗角正切（tanδ）小于或等于0.07％。 该聚乙烯组合物即使在高温或高电场应力下也显示出很小的介电损耗，并且最佳地用于275kV或更高的超高压电力电缆的绝缘和接头中。

公开(公告)号：US4924131A

公开(公告)日：1990-05-08

申请号：US257346

申请日：1988-10-13

申请人： Shiro Nakayama ,  Satoshi Kunimura ,  Shigemi Takahashi ,  Katsuhiko Takahashi ,  Toshimitu Hirayama ,  Masao Akutsu

发明人： Shiro Nakayama ,  Satoshi Kunimura ,  Shigemi Takahashi ,  Katsuhiko Takahashi ,  Toshimitu Hirayama ,  Masao Akutsu

IPC分类号： G01P15/09 ,  H01L41/113 ,  H01L41/08

CPC分类号： H01L41/1132 ,  G01P15/0922 ,  Y10S310/80

摘要： A piezo-electric acceleration sensor, including: a piezo-electric polymer membrane element having an element through-hole; a diaphragm having a diaphragm through-hole and attached to the piezo-electric membrane element so that the diaphragm hole is concentric to the element through-hole to form a laminate with a laminate through-hole; and a fixing mechanism, having a sensing hole, for fixing the laminate in a stretched manner, and wherein: the laminate through-hole has about 2.25 to about 80% of the area of the sensing hole; and the diaphragm and the piezo-electric element meet the equation:(Eb.times.Tb.sup.3)/(Ep.times.Tp.sub.3).gtoreq.about 5wherein Eb, Tb, Ep and Tp are Young's modulus thickness of the diaphragm, Young's modulus, and thickness of the piezo-electric element, respectively, whereby acceleration, applied to the diaphragm, is detected based on a quantity of electricity generated due to strains in a piezo-electric element.

摘要翻译： 一种压电加速度传感器，包括：具有元件通孔的压电聚合物膜元件; 隔膜，其具有隔膜通孔并附接到压电膜元件，使得隔膜孔与元件通孔同心，以形成具有层压通孔的层压体; 以及固定机构，其具有用于以拉伸方式固定所述层叠体的感测孔，并且其中：所述层压体通孔具有所述感测孔的面积的约2.25至约80％; 并且隔膜和压电元件满足以下等式：（EbxTb3）/（EpxTp3）> / =约5其中Eb，Tb，Ep和Tp是隔膜的杨氏模量厚度，杨氏模量和压电元件的厚度， 电子元件，由此基于由压电元件中的应变产生的电量来检测施加到隔膜的加速度。

公开(公告)号：US5128581A

公开(公告)日：1992-07-07

申请号：US517092

申请日：1990-05-01

申请人： Shiro Nakayama ,  Satoshi Kunimura ,  Katsuhiko Takahashi ,  Takayuki Imai

发明人： Shiro Nakayama ,  Satoshi Kunimura ,  Katsuhiko Takahashi ,  Takayuki Imai

IPC分类号： G01P15/09

CPC分类号： G01P15/0907 ,  Y10S310/80

摘要： The invention relates to a piezoelectric acceleration sensor and to a piezoelectric acceleration device which use a film piezoelectric element.Speicfically, the piezoelectric acceleration sensor and the piezoelectric acceleration sensor device generate relatively large outputs when acceleration occurs along the sensing axis, but produce relatively small outputs from acceleration perpendicular to the sensing axis. In addition, the sensor and the sensor device are relatively unaffected by temperature fluctuations and are highly impact-resistant.

公开(公告)号：US4098930A

公开(公告)日：1978-07-04

申请号：US743919

申请日：1976-11-22

申请人： Shiro Nakayama ,  Kuniyuki Nakayama ,  Ikuo Nakaya

发明人： Shiro Nakayama ,  Kuniyuki Nakayama ,  Ikuo Nakaya

IPC分类号： C08J9/28 ,  C25B13/08 ,  H01M2/16 ,  B05D3/10 ,  B05D5/00

CPC分类号： C08J9/28 ,  C25B13/08 ,  H01M2/162 ,  H01M2/1626 ,  C08J2333/20

摘要： A method for producing a microporous separator for an electrochemical cell comprises dissolving a copolymer of acrylonitrile into N,N-dimethylformamide, impregnating an acid- and/or alkali-resistant fibrous web with the resultant solution, and thereafter dipping the impregnated web into an aqueous coagulating bath, whereby the copolymer deposits on and between the web fibers to form a microporous matrix. The aqueous coagulating bath is selected from the group consisting of water at a temperature of 15.degree. C or below and aqueous solutions of a water-soluble acid solute, basic solute, or netural solute at a concentration of one mol / 1 or above. This method yields products having low maximum pore radii and yet low electric resistances.