会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 61. 发明授权
    • Delay circuit of ultrasonic diagnostic apparatus using delay line
comprising variable capacitance diode and inductor
    • 使用包括可变电容二极管和电感器的延迟线的超声波诊断装置的延迟电路
    • US5146192A
    • 1992-09-08
    • US727053
    • 1991-07-08
    • Toshio KondoToshio OgawaKazunari IshidaAkihiro Ueyama
    • Toshio KondoToshio OgawaKazunari IshidaAkihiro Ueyama
    • H03H11/26
    • H03H11/265
    • A delay circuit of ultrasonic diagnostic apparatus comprising a delay line consisting of a plurality of unit portions connected in cascade, in each of which an anode of a first variable capacitance diode and a cathode of a second variable capacitance diode are connected with a connecting point of two inductors connected in series, or a delay line obtained by replacing capacitances in a second order all pass type delay line by variable capacitance diodes, or a delay line, in which variable capacitance diodes and inductors form a balanced circuit; and control circuit for applying a reverse bias voltage to each of the variable capacitance diodes; and an amplifier or a variable resistance circuit using FETs serving as a matching circuit for the delay line, capable of varying continuously an input impedance by using a control voltage from the exterior.
    • 一种超声波诊断装置的延迟电路,包括由串联连接的多个单位部分构成的延迟线,其中,第一可变电容二极管的阳极和第二可变电容二极管的阴极分别与 串联连接的两个电感器或通过用二次替换电容获得的延迟线通过可变电容二极管或延迟线全部通过类型延迟线,其中可变电容二极管和电感器形成平衡电路; 以及用于向每个可变电容二极管施加反向偏置电压的控制电路; 以及使用用作延迟线的匹配电路的FET的放大器或可变电阻电路,能够通过使用来自外部的控制电压来连续地改变输入阻抗。
    • 62. 发明授权
    • Ultrasonic doppler flow meter
    • 超声波多普勒流量计
    • US4905206A
    • 1990-02-27
    • US369656
    • 1989-06-20
    • Hisashi NishiyamaKageyoshi KatakuraToshio OgawaSatoshi TamanoKoji TanabeShizuo Ishikawa
    • Hisashi NishiyamaKageyoshi KatakuraToshio OgawaSatoshi TamanoKoji TanabeShizuo Ishikawa
    • G01F1/66G01S15/58
    • G01F1/663G01S15/582G01S15/584
    • A flow meter, in which pulsed continuous ultrasonic wave is transmitted towards an object at predetermined intervals T to obtain a phase vector from a reception signal of wave reflected by the object and which calculates a Doppler frequency from the average value of phase differences between phase vectors at the sampling interval T to obtain a signal indicating the speed of the object, comprising a phase difference calculator by the auto-correlation method, by which a plurality of phase difference vectors indicating phase differences between phase vectors are added, the argument of the sum vector thus obtained representing the average phase difference, or a phase difference calculator by the 2-axial-component method, by which a phase difference is divided into 2 axial components, a cosine value and a sine value, and the average phase difference is obtained by using the average value for each of the components, and a phase difference calculator by the phase difference averaging calculator, by which a plurality of phase differences are added, as they are, to obtain the average thereof, in order to obtain a phase difference average value having small errors by switching them.
    • 一种流量计,其中脉冲连续超声波以预定间隔T朝向物体传输,以从由物体反射的波的接收信号中获得相位矢量,并根据相位矢量之间的相位差的平均值计算多普勒频率 以采样间隔T,以获得指示对象速度的信号,包括通过自相关方法的相位差计算器,通过该相关方法将表示相位矢量之间的相位差的多个相位差矢量相加, 或通过2-轴分量法的相位差计算器,将相位差分成2个轴向分量,余弦值和正弦值,得到平均相位差 通过使用每个分量的平均值,以及通过相位差平均计算的相位差计算器 或者通过其相加多个相位差来获得其平均值,以便通过切换来获得具有较小误差的相位差平均值。
    • 63. 发明授权
    • Chip-type resonator and method of manufacturing the same
    • 片式谐振器及其制造方法
    • US4894580A
    • 1990-01-16
    • US216036
    • 1988-07-07
    • Toshio Ogawa
    • Toshio Ogawa
    • H03H9/205H03H9/13H03H9/17
    • H03H9/178
    • A chip-type resonator comprises a piezoelectric member, a plurality of inner electrodes embedded in the piezoelectric member parallel to one another and spaced apart at intervals along the direction of thickness, and a pair of outer electrodes provided on side surfaces of the piezoelectric member and connected with the inner electrodes. The inner electrodes are provided in an odd number of at least three. The piezoelectric member is so polarized that one of its portions located between one pair of the inner electrodes expands and another portion between an adjacent pair contracts upon application of voltage between the outer electrodes.This chip-type resonator is manufactured by preparing a plurality of sheets for providing a piezoelectric member, forming electrodes on the same, stacking and firing the same and performing the prescribed polarization.
    • 芯片型谐振器包括压电元件,嵌入压电元件中的多个内电极彼此平行并沿着厚度方向间隔开,并且一对外电极设置在压电元件的侧表面上, 与内部电极连接。 内部电极设置为奇数至少三个。 压电元件被极化,使得位于一对内部电极之间的部分中的一个膨胀,并且在外部电极之间施加电压时相邻对之间的另一部分收缩。 这种芯片式谐振器是通过制备多个用于提供压电元件的片材,在其上形成电极,堆叠并烧制它们并执行规定的极化来制造的。
    • 66. 发明授权
    • Acoustic surface wave devices containing piezoelectric ceramics
    • 包含压电陶瓷的声表面波装置
    • US4568848A
    • 1986-02-04
    • US583299
    • 1984-02-29
    • Toshio Ogawa
    • Toshio Ogawa
    • C04B35/49C04B35/491C04B35/493H01B3/12H01L41/00H01L41/18H01L41/187H03H3/08
    • C04B35/493H01L41/187
    • A piezoelectric ceramic for acoustic surface wave devices which consists essentially of a solid solution of the ternary system Pb(Sn.sub..alpha. Sb.sub.1-.alpha.)O.sub.3 -PbTiO.sub.3 -PbZrO.sub.3 having a composition showing a phase transition between a ferroelectric rhombohedral low temperature phase (F.sub.R(LT)) and a ferroelectric rohombohedral high temperature phase (F.sub.R(HT)) at a temperature within the range from -20.degree. C. to +80.degree. C. The solid solution consists essentially of a main component expressed by the formula:xPb(Sn.sub..alpha. Sb.sub.1-.alpha.)O.sub.3 -yPbTiO.sub.3 -zPbZrO.sub.3where in x+y+z=1.00, 1/4.ltoreq..alpha..ltoreq.3/4, and contains, as an additive, manganese in oxide form in an amount of 0.05 to 5.0 wt % when converted into MnO.sub.2 and, if necessary, further contains at least one element selected, from magnesium and chromium in oxide form in respective amounts of 0.05 to 5.0 wt % when respectively converted into MgO and Cr.sub.2 O.sub.3.
    • 一种用于声表面波器件的压电陶瓷,其基本上由三元体系Pb(Sn-Sb-α)O3-PbTiO3-PbZrO3的固溶体构成,其具有在铁电菱方低温相(FR(LT ))和在-20℃至+ 80℃的温度范围内的铁电罗霍米面高温相(FR(HT))。固溶体基本上由主要成分组成,由下式表示:xPb(Sn αSb1-α)O 3-yPbTiO 3 -zPbZrO 3,其中在x + y + z = 1.00,1 / 4 =α/ 3/4中,并且以0.05的量含有氧化物形式的添加剂 当分别转化为MnO 2时,如果需要,还可以含有至少一种选自镁和铬的元素,分别为0.05至5.0wt%的氧化物形式的元素。
    • 67. 发明授权
    • Semiconductor device
    • 半导体器件
    • US4445133A
    • 1984-04-24
    • US294750
    • 1981-08-20
    • Youichi ArakiToshio Ogawa
    • Youichi ArakiToshio Ogawa
    • H01L29/08H01L29/74H01L23/48H01L27/02
    • H01L29/0839H01L29/74H01L29/7428
    • Disclosed is a semiconductor device comprising: a semiconductor body having a first semiconductor layer of the N conductivity type, second and third semiconductor layers of the P conductivity type, and first and second regions of the N conductivity type formed in the second semiconductor layer; a cathode electrode having first and second portions formed on the first semiconductor region; a gate electrode provided in the second semiconductor layer in opposition to the cathode electrode with the second semiconductor region interposed therebetween; an anode electrode provided on the third semiconductor layer; an auxiliary electrode consisting of two first portions and one second portion connected at ends respectively to the first portions, said first portions being formed on said second region and having free ends spaced from each other, and said second portion formed on said second layer and extending along the periphery of the first portion of said cathode electrode; and the second portion of the cathode electrode lying between said free ends of the first portions of the auxiliary electrode.
    • 公开了一种半导体器件,包括:具有N导电类型的第一半导体层,P导电类型的第二和第三半导体层以及形成在第二半导体层中的N导电类型的第一和第二区域的半导体本体; 阴极,其具有形成在所述第一半导体区域上的第一和第二部分; 设置在所述第二半导体层中的与所述阴极电极相对的第二半导体区域的栅电极; 设置在所述第三半导体层上的阳极; 辅助电极由两个第一部分和一个第二部分组成,分别在端部分别连接到第一部分,所述第一部分形成在所述第二区域上并且具有彼此分开的自由端,并且所述第二部分形成在所述第二层上并延伸 沿着所述阴极电极的第一部分的周边; 并且阴极电极的第二部分位于辅助电极的第一部分的所述自由端之间。
    • 68. 发明授权
    • Method for producing piezoelectric ceramics
    • 压电陶瓷的制造方法
    • US4255272A
    • 1981-03-10
    • US67420
    • 1979-08-17
    • Toshio Ogawa
    • Toshio Ogawa
    • C04B35/49C04B35/493H01B3/12H01L41/187H01L41/39C04B35/46C04B35/48C04B35/64
    • H01L41/187
    • A method for producing piezoelectric ceramics of a Pb(Sn.sub..alpha. Sb.sub.1-.alpha.)O.sub.3 -PbTiO.sub.3 -PbZrO.sub.3 system is disclosed which comprises providing a piezoelectric ceramic composition expressed by the general formula:xPb(Sn.sub..alpha. Sb.sub.1-.alpha.)O.sub.3 -yPbTiO.sub.3 - zPbZrO.sub.3wherein subscripts .alpha., x and y are mole fractions of the respective components and have the following values, x+y+z= 1.00, 1/4.ltoreq..alpha..ltoreq.3/4, said composition falling within a polygonal area defined by points A, B, C, D and E in FIG. 3, forming powder of the composition into forming bodies, and firing the forming bodies in an oxygen atmosphere containing not less than 80 vol % of oxygen. The firing in the oxygen atmosphere is effected at a temperature not less than 1000.degree. C. A part of lead in the composition may be replaced with not more than 20 atomic percent of at least one metal selected from the group consisting of Ba, Ca, Sr and Cd. The composition may contain a small amount of Mn, Mg and/or Cr. Fine dense ceramics with low porosity, small average size and fine grain size are produced which can be applied to various electronic parts.
    • 公开了一种制备Pb(Sn-Sb-α)O3-PbTiO3-PbZrO3体系的压电陶瓷的方法,其包括提供由以下通式表示的压电陶瓷组合物:xPb(Sn-Sb-α)O3-yPbTiO3-zPbZrO3 其中下标α,x和y是相应组分的摩尔分数,并且具有以下值:x + y + z = 1.00,1 / 4 =α/ 3/4,所述组合物落在限定的多边形区域内 通过图1中的点A,B,C,D和E。 3,将组合物的粉末形成成型体,并在含有不少于80体积%氧气的氧气氛中焙烧成形体。 氧气氛中的烧成是在不低于1000℃的温度下进行的。组合物中铅的一部分可以用不大于20原子%的至少一种选自Ba,Ca, Sr和Cd。 该组合物可含有少量的Mn,Mg和/或Cr。 产生孔隙率低,平均粒径小,粒度细的细致密陶瓷,可应用于各种电子部件。