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1. 发明专利

JPS63168148A HEMOMANOMETER 失效
公开(公告)号：JPS63168148A
公开(公告)日：1988-07-12
申请号：JP31313286
申请日：1986-12-29
申请人： HITACHI LTD , HITACHI METALS LTD , HITACHI MEDICAL CORP
发明人： TAKEUCHI HIROYUKI , NAKATANI CHITOSE , KATAKURA KAGEYOSHI , SADAMURA SHIGERU , MARUTA KENJI
IPC分类号： A61B5/022 , A61B5/02

2. 发明专利

JPS63114500A COMPOSITE PIEZOELECTRIC MEMBER 失效
公开(公告)号：JPS63114500A
公开(公告)日：1988-05-19
申请号：JP25825486
申请日：1986-10-31
申请人： HITACHI LTD , HITACHI MEDICAL CORP , HITACHI METALS LTD
发明人： NAKATANI CHITOSE , TAKEUCHI HIROYUKI , KATAKURA KAGEYOSHI
IPC分类号： A61B8/00 , G01N29/04 , G01N29/24 , H04R17/00
摘要： PURPOSE:To improve a performance and to attain variety by changing at least one of the width of a columnar piezoelectric member or spaces between the columnar in two directions in which the columnar piezoelectric members are arranged. CONSTITUTION:The arrangement direction of the columnar piezoelectric members 102 is defined to be X, Y, a direction crossing X to be Y, and the width of the members 102 in the X and Y directions to be wX, wY, the spaces to be gX, gY and at least one of the width w, the space (g) of the columnar piezoelectric members 102 is made a different value in the X, Y directions. The oscillating state of the piezoelectric member 102 is changed in two directions of vertically and horizontally and undesirable oscillation is decentralized in the two directions. Thereby, a composite piezoelectric member of high performance and variety can be easily obtained.

3. 发明专利

JPS634799A PIEZOELECTRIC TYPE ELECTROACOUSTIC TRANSDUCER 失效
公开(公告)号：JPS634799A
公开(公告)日：1988-01-09
申请号：JP14692086
申请日：1986-06-25
申请人： HITACHI LTD , HITACHI METALS LTD , HITACHI MEDICAL CORP
发明人： NAKATANI CHITOSE , TAKEUCHI HIROYUKI , KATAKURA KAGEYOSHI
IPC分类号： H04R17/00
摘要： PURPOSE:To increase the strength of an electrode and to easily fabricate an electroacoustic transducer with a high performance by forming a cover, with an extent not to expose an electrode, on the electrode formed on a combined piezoelectric material with a structure that many columnar piezoelectric vibrators are distributed in an organic substance. CONSTITUTION:A construction is such that a dome shape is kept by the strength of the cover 305 or 306. A forming method for the covers 305 and 306 is as follows. A 1-3 type combined piezoelectric material 302 is temporarily pasted on a dome mold with wax or such a resin as is softened by heating, and such an epoxy resin that it comes hard after curing is coated on the electrode as the cover 305 or 306, and after curing, the dome mold is removed. Thus, electroacoustic transducer of high performance using the 1-3 type combined piezoelectric material is obtained.

4. 发明专利

JPS63260299A ULTRASONIC WAVE PROBE 失效
公开(公告)号：JPS63260299A
公开(公告)日：1988-10-27
申请号：JP9308987
申请日：1987-04-17
申请人： HITACHI LTD , HITACHI MEDICAL CORP , HITACHI METALS LTD
发明人： NAKATANI CHITOSE , TAKEUCHI HIROYUKI , KATAKURA KAGEYOSHI
IPC分类号： A61B8/00 , G01N29/04 , G01N29/24 , H04R17/00
摘要： PURPOSE:To facilitate the connection of a lead wire by forming alternately a strip-shaped electrode and an electrode with continuity thereto at an interval to the side face of a composite piezoelectric substance and connecting lead wires at an intervalfrom both side faces. CONSTITUTION:The strip-shaped electrodes 104-110 are formed on a composite piezoelectric substance 103 where lots of pillar piezoelectric substances 101 are imbedded in an organic substance 102 and electrodes 111-117 are formed alternately at an interval to the side face. Lead wires are connected alternately from both side faces by using the electrodes 111-117.

5. 发明专利

JPS63195525A ULTRASONIC LEVEL GAUGE 失效
公开(公告)号：JPS63195525A
公开(公告)日：1988-08-12
申请号：JP2630187
申请日：1987-02-09
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： TAKEUCHI HIROYUKI , NAKATANI CHITOSE , KATAKURA KAGEYOSHI , SADAMURA SHIGERU , MARUTA KENJI
IPC分类号： G01F23/296 , G01F23/28 , G01S7/52 , G01S7/521
摘要： PURPOSE:To measure the liquid level in a container which has an optional curved surface with high sensitivity by using a composite piezoelectric body formed by embedding many columnar inorganic piezoelectric bodies in a sheet type organic material at right angles to the sheet surface. CONSTITUTION:A zircon-titanate (PZT) ceramic plate which is polarized uniformly in a thickness direction and, for example, 80mm square and 0.4mm thick is adhered on a ferrite base with electron wax, and this adhered body is cut in a mesh shape at 0.4mm pitch by using a blade which is 0.2mm thick. The sheet type composite piezoelectric body of 0.4mm in thick which is obtained by charging and caking polyurethane in grooves formed by said cutting is separated from the ferrite base by dissolving the electron wax. Then, composite piezoelectric bodies 12 of 10mm square are cut, two-layered films of chromium and gold are adhered on both surfaces as electrodes, and leads are fixed with a conductive adhesive. The obtained element 21 is adhered on the bottom surface of the container 23 which contains liquid and a driving circuit 22 for ultrasonic wave pulse generation is connected. Then liquid surface reflected ultrasonic wave pulses are observed 24 to measure the height of the liquid surface.

6. 发明专利

JPS62247700A PIEZOELECTRIC SPEAKER 失效
公开(公告)号：JPS62247700A
公开(公告)日：1987-10-28
申请号：JP8919886
申请日：1986-04-19
申请人： HITACHI METALS LTD , HITACHI LTD
发明人： ARAI YASUO , SADAMURA SHIGERU , MARUTA KENJI , NAKATANI CHITOSE , TAKEUCHI HIROYUKI , KATAKURA KAGEYOSHI
IPC分类号： H04R17/00
摘要： PURPOSE:To secure generation of sound with high efficiency over a wide frequency band by connecting the side faces of plural columnar piezoelectric bodies with organic matter to obtain a sheet type composite piezoelectric body and providing electrodes on both side of said composite piezoelectric body to drive this body with electroacoustic signals. CONSTITUTION:A PZT ceramics 1 polarized evenly in its thickness direction and having, e.g. a 100mm diameter and 0.5mm thickness is fixed to a flat plate. Then a mesh grooves are formed to the PZT ceramics 1 by a blade with 0.2mm depth and 0.15mm pitches. Then the urethane resin 2 is filled into those grooves and 2 grinding process is applied to the rear side of the substance 1 after the resin 2 is hardened. Thus a composite piezoelectric body 3 is formed. This body 3 is fixed to a ring 4 made of a hard material via a spring ring 5 so that the light tensile stress is applied to the ring 4. The electrodes 6 and 6' are formed on both sides of the body 3 and epoxy resin 8 is laminated on these electrodes as a protecting film. Then lead wire 9 is attached to the sub stance 3 via a conductive adhesive 7. In such a constitution, this piezoelectric speaker can produce acoustic signals with high efficiency over a wide frequency range.

7. 发明专利

JPS62150610A INPUT DEVICE 失效
公开(公告)号：JPS62150610A
公开(公告)日：1987-07-04
申请号：JP29065785
申请日：1985-12-25
申请人： HITACHI LTD , HITACHI METALS LTD , HITACHI MEDICAL CORP
发明人： NAKATANI CHITOSE , TAKEUCHI HIROYUKI , KATAKURA KAGEYOSHI
IPC分类号： H01H13/00 , G06F3/02 , H01L37/02 , H01L41/113 , H01L41/18 , H03K17/96

8. 发明专利

JPS63285000A MICROPHONE 失效
公开(公告)号：JPS63285000A
公开(公告)日：1988-11-22
申请号：JP11884287
申请日：1987-05-18
申请人： HITACHI LTD , HITACHI METALS LTD
发明人： TAKEUCHI HIROYUKI , NAKATANI CHITOSE , KATAKURA KAGEYOSHI
IPC分类号： H04R17/02
摘要： PURPOSE:To improve S/N by using a planer lateral vibration of a composite piezoelectric substance where lots of pillar piezoelectric substances are imbedded into the sheet face of an organic sheet perpendicularly. CONSTITUTION:A PZT group ceramic plate 22 in a thickness of 0.5mm polarized uniformly in the thickness direction is adhered onto a ferrite base 21 by electron wax and polished till the thickness reaches 0.1mm. An epoxy resin is packed in the cut lines C, the electron wax is molten after the resin is solidified and removed from the ferrite substrate 21. Aluminum is vapor-deposited to both sides of a composite piezoelectric sheet 31 obtained in this way to obtain an electrode, a disk, 30mmphi thick is cut out, adhered to a torus 32 fixing the circumference to fix the circumference and leads wires 33 are fitted. Thus, the vibration of the composite piezoelectric substance in the planer lateral direction is utilized and high sensitivity and high S/N are obtained up to a frequency band far lower than the thickness vibration mode.

9. 发明专利

JPS62122499A FORMATION OF COMPOSITE PIEZOELECTRIC MATERIAL 失效
公开(公告)号：JPS62122499A
公开(公告)日：1987-06-03
申请号：JP26122085
申请日：1985-11-22
申请人： HITACHI LTD , HITACHI METALS LTD , HITACHI MEDICAL CORP
发明人： NAKATANI CHITOSE , TAKEUCHI HIROYUKI , KATAKURA KAGEYOSHI , NAGASAWA MASAYUKI
IPC分类号： A61B8/00 , H04R17/00 , H04R31/00
摘要： PURPOSE:To accurately and easily manufacture a composite piezoelectric material that formerly is hard to work by forming a cut groove form the front surface of a resonator while remaining a part of its thickness, packing a resin in the said groove, and cutting off the unnecessary part of the resonator from its rear surface. CONSTITUTION:The resonator 201 is temporarily adhered on a block 203 having excellent parallelism and flatness with a resin 202 softened when wax or the like is heated. Then a cut groove 204 is formed to the depth of t1 longer than the thickness of the composite piezoelectric material to be formed in matrix state in the resonator 201 while leaving a part of the thickness by means of a diesing saw. A resin such as polyurethane or epoxy resin 206 is packed and cured in the groove 204. Then the resin 202 is melted. The resonator 201 is turned over, and temporarily adhered on the block having the excellent parallelism and flatness 207 with wax, etc. 208. Thereafter, the unnecessary part of the resonator 201 is sequentially cut off from the edge by using a thicker blade 209 so that the depth of the cut-off part is made equal to the thickness t2 of the composite piezoelectric material to be formed. Finally, the material is stripped off from the block 207 to obtain the composite piezoelectric material.

10. 发明授权

US3918025A Ultrasonic imaging apparatus for three-dimensional image display 失效
标题翻译：用于三维图像显示的超声波成像装置
公开(公告)号：US3918025A
公开(公告)日：1975-11-04
申请号：US48844074
申请日：1974-07-15
申请人： HITACHI LTD
发明人： KOSHIKAWA TSUNEJI , KATAKURA KAGEYOSHI , KOBAYASHI MASAHARU , TANNAKA YASUAKI
IPC分类号： A61B8/00 , G01S7/52 , G01S7/62 , G01S15/89 , H04N9/43 , H04N13/00 , G01S9/66
CPC分类号： G01S7/6245 , G01S15/8952
摘要： An improved ultrasonic imaging apparatus utilizing ultrasonic waves for obtaining an image of a target object which comprises a transmitting transducer radiating ultrasonic waves whose direction of radiation varies depending on the input frequency, a receiving transducer receiving reflected acoustic waves from a target plane, a frequency analyzer converting the output signal of the receiving transducer into a signal representing the position of the target plane on the basis of the frequency and the position of the received acoustic waves on the receiving transducer, and an image display unit displaying the output signal of the frequency analyzer. In the apparatus, in order to obtain a three-dimensional image including depthwise image information in addition to plane image information of the target object, the frequency analyzer is constructed so that a plurality of image information successively obtained from a plurality of target planes of different depths can be converted into signals representative of different depths to be displayed in superposed relation on the display unit.
摘要翻译：一种利用超声波获得目标物体的图像的改进的超声波成像装置，其包括辐射根据输入频率而变化的辐射的超声波的发射换能器，接收来自目标平面的反射声波的接收换能器，频率分析器根据接收换能器上接收的声波的频率和位置，将接收换能器的输出信号转换为表示目标平面位置的信号，以及显示频率分析仪的输出信号的图像显示单元。在该设备中，为了获得包括目标对象的平面图像信息之外的包括深度图像信息的三维图像，频率分析器被构造成使得从多个不同目标平面的目标平面连续获得的多个图像信息深度可以转换成代表不同深度的信号，以在显示单元上以叠加关系显示。

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