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公开(公告)号:US6157289A
公开(公告)日:2000-12-05
申请号:US147790
申请日:1999-03-09
CPC分类号: H01C7/021
摘要: The invention presents a PTC thermistor which is high in adhesive strengths of inner- and outer-layer electrodes composed of metallic foil respectively stuck to conductive sheets, and has a larger current breaking characteristic. It contains a laminated body (13) which is formed by alternately laminating a plurality of conductive sheets (14) and an inner-layer electrode (11) composed of metallic foil having first plated layers (12) so that the conductive sheets (14) can become the outermost layers, an outer-layer electrode (18) positioned at the outermost layer of the laminated body (13), and having a second plated layer (16) on a side facing the inner-layer electrode (11), and side-face electrode layers 20) disposed at facing sides of the laminated body 913) for connecting electrically the inner-layer electrode (11) and outer-layer electrode (18).
摘要翻译: PCT No.PCT / JP97 / 03357 Sec。 371日期1999年3月9日 102(e)1999年3月9日PCT 1997年9月22日PCT公布。 出版物WO98 / 日期:1998年3月26日本发明提供一种PTC热敏电阻,该PTC热敏电阻具有高分子量的内层和外层电极,金属箔分别粘在导电片上,具有较大的断流特性。 它包含层叠体(13),其通过交替层叠多个导电片(14)和由具有第一镀层(12)的金属箔构成的内层电极(11)形成,使得导电片(14) 可以成为最外层,位于层叠体(13)的最外层的外层电极(18),并且在面向内层电极(11)的一侧具有第二镀层(16),以及 设置在层叠体913的相对侧的侧面电极层20),用于将内层电极(11)和外层电极(18)电连接。
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公开(公告)号:US06556123B1
公开(公告)日:2003-04-29
申请号:US09936191
申请日:2002-01-02
申请人: Toshiyuki Iwao , Junji Kojima , Akira Tanaka , Takashi Ikeda , Kiyoshi Ikeuchi
发明人: Toshiyuki Iwao , Junji Kojima , Akira Tanaka , Takashi Ikeda , Kiyoshi Ikeuchi
IPC分类号: H01C713
CPC分类号: H01C17/006 , H01C1/1406 , H01C1/146
摘要: A chip PTC thermistor is provided which is capable of increasing the rate of increase in resistance when an overcurrent is applied, thereby increasing the breakdown voltage. The PTC thermistor comprises: a first main electrode and a first sub-electrode disposed on a first face of a conductive polymer with PTC properties; a second main electrode and a second sub-electrode disposed on a second face of the conductive polymer, which is facing the first face; and first and second side electrode and disposed on side faces of the conductive polymer. Cut-off sections are provided to the vicinity of joints of the first main electrode and the first side electrode, and joints of the second main electrode and the second side electrode.
摘要翻译: 提供一种片式PTC热敏电阻器,其能够在施加过电流时提高电阻增加率,从而增加击穿电压。 PTC热敏电阻包括:第一主电极和第一子电极,其设置在具有PTC特性的导电聚合物的第一面上; 第二主电极和第二子电极,其设置在导电聚合物的面向第一面的第二面上; 以及第一和第二侧面电极,并设置在导电聚合物的侧面上。 切断部分设置在第一主电极和第一侧电极的接头附近,以及第二主电极和第二侧电极的接头处。
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公开(公告)号:US06522237B1
公开(公告)日:2003-02-18
申请号:US09432821
申请日:1999-10-29
申请人: Masahiko Ito , Masakazu Tanahashi , Toshiro Kume , Kouichi Morimoto , Junji Kojima , Emiko Igaki
发明人: Masahiko Ito , Masakazu Tanahashi , Toshiro Kume , Kouichi Morimoto , Junji Kojima , Emiko Igaki
IPC分类号: H01C713
CPC分类号: H01C1/1406 , H01C7/027 , Y10T428/12028 , Y10T428/12493
摘要: An electrode for a PTC thermistor of the present invention includes a base layer having electrical conductivity and a sintered layer formed on the base layer. The sintered layer is formed by sintering a conductive powder and has electrical conductivity, and has roughness on a surface thereof. Thus, the present invention can provide an electrode for a PTC thermistor that has a large adhesion to the conductive polymer and can be produced easily.
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公开(公告)号:US06441717B1
公开(公告)日:2002-08-27
申请号:US09647657
申请日:2000-12-15
IPC分类号: H01C710
CPC分类号: H01C17/006 , H01C1/1406 , H01C7/027 , H01C7/028 , H05K3/3442
摘要: A chip polymer PTC thermistor for surface mount assembly having a superior long-term connection reliability between side electrode and main and sub electrodes. The thermister comprises; a rectangular parallelepiped conductive polymer(11) having PTC properties; a first main electrode(12a) and a first sub electrode(12b) disposed on a first face of the conductive polymer; a second main electrode(12c) and a second sub electrode(12d) disposed on a second face opposite the first face of the conductive polymer; and first and second side electrodes(13a,13b) folding around and over the entire surface of side faces of the conductive polymer, the side electrodes electrically coupling the electrodes disposed on the two faces of the conductive polymer, and a thickness of the side electrodes is not less than one twentieth of the distance between the first main electrode(12a) and the second sub electrode(12d) and the distance between the first sub electrode(12b) and second main electrode(12a,12c).
摘要翻译: 一种用于表面安装组件的芯片聚合物PTC热敏电阻,其在侧电极和主电极和辅助电极之间具有优异的长期连接可靠性。 热敏电阻包括 具有PTC性质的长方体形导电聚合物(11); 设置在导电性聚合物的第一面上的第一主电极(12a)和第一副电极(12b) 第二主电极(12c)和第二副电极(12d),设置在与导电聚合物的第一面相对的第二面上; 以及在导电聚合物的侧面的整个表面上折叠的第一和第二侧电极(13a,13b),电连接设置在导电聚合物的两个面上的电极的侧电极和侧电极的厚度 不小于第一主电极(12a)和第二副电极(12d)之间的距离的二十分之一以及第一子电极(12b)和第二主电极(12a,12c)之间的距离。
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公开(公告)号:US06993444B2
公开(公告)日:2006-01-31
申请号:US10932860
申请日:2004-09-02
申请人: Issei Yokoyama , Yoshihito Yuhara , Junji Kojima , Takaaki Yada
发明人: Issei Yokoyama , Yoshihito Yuhara , Junji Kojima , Takaaki Yada
CPC分类号: G01N21/274
摘要: A measuring method of determining component concentration in a solution by calculating component concentrations in the solution at various temperatures in a small number of steps. The component concentration is measured at an arbitrary temperature T by using a solution absorbance spectrum and solvent absorbance spectrum at a plurality of wavelength(s)r, and preliminarily determining a calibration coefficient Mij (TO). Concentration of Ci of component i in solution at reference temperature TO, is obtained at differential spectrum of solution spectrum S (λj, T) at temperature T in j-th wavelength λj and solvent spectrum B (λj, T) at temperature T in j-th wavelength λj, calculating calibration coefficient Mij (TO) the specific component concentrations.
摘要翻译: 通过在少量步骤中通过在各种温度下计算溶液中的组分浓度来测定溶液中组分浓度的测量方法。 通过使用多个波长r处的溶液吸收光谱和溶剂吸收光谱,在任意温度T测量组分浓度,并且初步确定校准系数M ij(T) O SUB>)。 在溶液光谱S(λN,T)的差分光谱下获得在参考温度T O 0下在溶液中浓度的组分i的C i )在第j个波长λN和第二波长λλ下的温度T和溶剂光谱B(λ,j,T)中,在第j个波长λ< 计算特定组分浓度的校准系数M ij(T O O)。
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公开(公告)号:US06593844B1
公开(公告)日:2003-07-15
申请号:US09868028
申请日:2001-06-13
IPC分类号: H01C710
CPC分类号: H01C17/006 , H01C1/1406 , H01C7/021 , H01C7/028
摘要: A chip PTC thermistor comprising a conductive polymer having PTC properties, a first outer electrode, a second outer electrode, one or more inner electrodes sandwiched between the conductive polymer, a first electrode electrically directly coupled with the first outer electrode, and a second electrode. The odd-numbered inner electrode among the one-or-more inner electrodes is directly coupled with the second electrode, while the even-numbered inner electrode, with the first electrode. When total number of the inner electrodes is an odd number the second outer electrode makes direct electrical contact with the first electrode, when it is an even number the second outer electrode makes direct electrical contact with the second electrode. Defining a distance from the odd-numbered inner electrode to the first electrode, or from the even-numbered inner electrode to the second electrode, as “a”, while a distance between the adjacent inner electrodes, or a distance between the inner electrode placed the most adjacent to the first outer electrode, or the second outer electrode, and the first outer electrode, or the second outer electrode, as “t”; the PTC thermistors are constituted so that a ratio a/t is within 3-6. The chip PTC thermistors in accordance with the present invention effectively prevent an overcurrent in large current circuits.
摘要翻译: 一种片状PTC热敏电阻,包括具有PTC性质的导电聚合物,第一外部电极,第二外部电极,夹在导电聚合物之间的一个或多个内部电极,与第一外部电极直接耦合的第一电极和第二电极。 一个或多个内部电极中的奇数内部电极与第二电极直接耦合,而偶数内部电极与第一电极直接耦合。 当内部电极的总数为奇数时,第二外部电极与第一电极直接电接触,当第二外部电极为偶数时,第二外部电极与第二电极直接电接触。 将从奇数编号的内部电极到第一电极或从偶数的内部电极到第二电极的距离定义为“a”,而相邻的内部电极之间的距离或放置的内部电极之间的距离 与第一外电极或第二外电极最相邻,第一外电极或第二外电极为“t”; PTC热敏电阻构成为a / t比在3-6以内。 根据本发明的芯片PTC热敏电阻有效地防止了大电流电路中的过电流。
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公开(公告)号:US06558616B2
公开(公告)日:2003-05-06
申请号:US09776989
申请日:2001-02-05
申请人: Masahiro Ito , Masakazu Tanahashi , Toshiro Kume , Kouichi Morimoto , Junji Kojima , Emiko Igaki
发明人: Masahiro Ito , Masakazu Tanahashi , Toshiro Kume , Kouichi Morimoto , Junji Kojima , Emiko Igaki
IPC分类号: B22F704
CPC分类号: H01C1/1406 , H01C7/027 , Y10T428/12028 , Y10T428/12493
摘要: An electrode for a PTC thermistor of the present invention includes a base layer having electrical conductivity and a sintered layer formed on the base layer. The sintered layer is formed by sintering a conductive powder and has electrical conductivity, and has roughness on a surface thereof. Thus, the present invention can provide an electrode for a PTC thermistor that has a large adhesion to the conductive polymer and can be produced easily.
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公开(公告)号:US06481094B1
公开(公告)日:2002-11-19
申请号:US09508062
申请日:2000-04-21
申请人: Takashi Ikeda , Kiyoshi Ikeuchi , Koichi Morimoto , Junji Kojima
发明人: Takashi Ikeda , Kiyoshi Ikeuchi , Koichi Morimoto , Junji Kojima
IPC分类号: H01C702
CPC分类号: H01C17/006 , H01C1/1406 , H01C7/027 , H01C17/02 , Y10T29/49082 , Y10T29/49085 , Y10T29/49099 , Y10T29/49787
摘要: A method of manufacturing a chip PTC thermistor utilizes a piece of conductive polymer having a PTC characteristic and metal foils formed by patterning and provided on the upper and the lower sides of the piece under pressure integrally into a sheet, making a hole part in the sheet, applying a protective coating serving as plating resist to upper and lower sides of the sheet, forming an electrode on the sheet by electroplating, and cutting the sheet into a chip. The protective coating is made of a material applicable at a temperature equal to or lower than the melting point of the conductive polymer. The processing temperatures at the step from the step of making a hole part in the sheet to the pre-processing step of the step of forming an electrode by electroplating on the sheet are not above the melting point of the conductive polymer.
摘要翻译: 一种片状PTC热敏电阻的制造方法利用一种具有PTC特性的导电聚合物和通过图案化形成的金属箔,并将其设置在片材的上下两侧,一体地压入片材中,在片材中形成孔部分 在片材的上下侧涂敷作为电镀抗蚀剂的保护层,通过电镀在片材上形成电极,将片材切断成芯片。 保护涂层由适用于等于或低于导电聚合物熔点的温度的材料制成。 从片材中的孔部分的步骤到通过电镀在片材上形成电极的步骤的预处理步骤的步骤的处理温度不高于导电聚合物的熔点。
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公开(公告)号:US5539396A
公开(公告)日:1996-07-23
申请号:US126356
申请日:1993-09-24
申请人: Takeshi Mori , Hiromi Ohkawa , Junji Kojima
发明人: Takeshi Mori , Hiromi Ohkawa , Junji Kojima
CPC分类号: G08C19/28
摘要: A remote monitoring system for instrumentation that is capable of measuring certain characteristics of a process such as a pH value includes an instrument for providing a measurement output signal which can be stored. A comparison circuit can compare the output signal with a predetermined value. A transmitter can transmit when the output signal exceeds the predetermined value, and a receiver can receive the output signal and convert it into a measured result. The instrumentation can be pulled from the receiver and the output signals can be encoded to identify a particular instrument with distinct transmission time periods available in a plurality of transmitting channels.
摘要翻译: 能够测量诸如pH值的过程的某些特性的用于仪器的远程监控系统包括用于提供可存储的测量输出信号的仪器。 比较电路可以将输出信号与预定值进行比较。 当输出信号超过预定值时,发射机可以发射,接收机可以接收输出信号并将其转换为测量结果。 可以从接收器拉出仪器,并且可以编码输出信号以识别具有在多个发送信道中可用的不同传输时间段的特定仪器。
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20.
公开(公告)号:US5310473A
公开(公告)日:1994-05-10
申请号:US102092
申请日:1993-08-04
申请人: Katsuhiko Tomita , Akemi Mototsune , Junji Kojima
发明人: Katsuhiko Tomita , Akemi Mototsune , Junji Kojima
IPC分类号: G01N27/30 , G01N27/403 , G01N27/416 , G01N27/26
CPC分类号: G01N27/4165 , G01N27/307 , G01N27/4035
摘要: An improved compact ion-concentration measuring apparatus having a removable sample testing module with gelatinized electrodes. The gelatinized portion of the electrodes can be formed with a jelly containing an acrylic polymer with sodium.
摘要翻译: 一种改进的紧凑型离子浓度测量装置,其具有可凝胶化电极的可移除样品测试模块。 电极的凝胶化部分可以由含有丙烯酸聚合物的钠的果冻形成。
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