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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

JPH01244681A COMPOUND PIEZOELECTRIC BODY 失效
公开(公告)号：JPH01244681A
公开(公告)日：1989-09-29
申请号：JP7148088
申请日：1988-03-25
申请人： HITACHI METALS LTD , HITACHI LTD , HITACHI MEDICAL CORP
发明人： ARAI YASUO , NAKATANI CHITOSE , SATO YUTAKA
IPC分类号： H01L41/45
摘要： PURPOSE:To obtain a compound piezoelectric body of high performance and high precision wherein electro-mechanical coupling-coefficient is high, and acoustic impedance is low, by retaining pillar type piezoelectric bodies in an integrated body with an organic body composed of organic material, and fixing a pair of lead members to the parallel edge-portions of the piezoelectric board, and simplify the fixing of the lead wires. CONSTITUTION:A PZT board 10 has a pair of parallel edge-portions 10a, and is formed in a planar type or belt plane type having thickness (t). A plurality of piezoelectric bodies 12 are arranged with a pitch (P), via organic bodies which are composed of polyurethane or epoxy resin and have a width (w). Lead members 14 are fixed to both parallel edge-portions 10a of the PZT board 10 in a unified body, via, e.g., adhesive agent. The pitch P of recessed parts 15 arranged on the lead members 14 is set as follow; the pitch between a pair of facing lead members 14, 14 is P=2np, and the pitch on the same lead member 14 is 2P. The height of the lead member 14 is set as a specified dimension (h), and a conductor part 16 having a height h1 is board on the upper surface of the lead member 14 to which the recessed part 15 belongs. A plated electrode layer 20 is arranged on the surface of the piezoelectric bodies 12 of, e.g., two rows intersecting the parallel edge-portions 10a, via an organic body 19. The recessed part 15 and the conducting part 16 of the lead member 14 also are provided with the similar plated electrode layer, which are electrically connected with a plated electrode layer 20 arranged on the surface of the piezoelectric body 12.

5. 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.

6. 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.

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

JPH0698878A METHOD AND APPARATUS FOR MRI NUMERICAL SIMULATION 失效
公开(公告)号：JPH0698878A
公开(公告)日：1994-04-12
申请号：JP24296392
申请日：1992-09-11
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： NAKATANI CHITOSE , TANIGUCHI AKIRA , BITO YOSHITAKA , YAMAMOTO ETSUJI
IPC分类号： A61B5/055 , G01R33/46
摘要： PURPOSE:To provide MRI numeral simulation method and apparatus which are effective as tool to develop a more sophisticated MRI apparatus by clarifying a nuclear resonance phenomenon. CONSTITUTION:A pulse sequence is generated at the step 401, image information of a specimen at the step 402 and information on characteristics of the apparatus at the step 403. At the step 404, a transient matrix is formed based on those obtained at the steps 401, 402 and 403. At the steps 405 and 406, a numerical computation and a calculation of MR signals according to the pulse sequence. At the step 405, a numerical computation section is formed to solve a Bloch's equation for each pixel to perform a calculation for magnetization. At the step 407, a processing such as fast Fourier transform is performed for the MR signal obtained at the step 405 to reconstruct an tomographic image of the specimen. The results are displayed at the step 408. This enables the realization of fast and highly accurate high performance MRI numeral simulation.

9. 发明专利

JPH05245128A 失效
公开(公告)号：JPH05245128A
公开(公告)日：1993-09-24
申请号：JP4823392
申请日：1992-03-05
申请人： HITACHI LTD , HITACHI MEDICAL CORP
发明人： BITO YOSHITAKA , TANIGUCHI AKIRA , YAMAMOTO ETSUJI , NAKATANI CHITOSE , ONODERA YUKARI
IPC分类号： A61B5/055 , G01R33/28 , G01R33/32
摘要： PURPOSE:To reduce a body motion artifact by calculating data for showing a body motion from projection data, correcting the projection data, based on its data, and correcting the body motion. CONSTITUTION:Projection data (nu, theta) (-pi/2

10. 发明专利

JPS6390999A ULTRASONIC PROBE 失效
公开(公告)号：JPS6390999A
公开(公告)日：1988-04-21
申请号：JP23614186
申请日：1986-10-06
申请人： HITACHI LTD , HITACHI MEDICAL CORP
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 be flexible and to prevent a crosstalk from being increased even when the volume ratio of a columnar piezoelectric body is made higher by widening the section between stripe-shaped electrodes as much as possible, making narrower the clearance between columnar piezoelectric bodies of the direction intersecting orthogonally with it and making narrower the clearance of the columnar vibrator in an electrode. CONSTITUTION:By using a compound piezoelectric body 101 in which a clearance gx between columnar piezoelectric bodies 102 of the direction, in which the stripe-shaped electrode is formed, is widened as much as possible and the clearance between the columnar piezoelectric bodies 102 of the direction intersecting orthogonally with it is narrowed as much as possible, a probe is constituted. By using a compound piezoelectric body 301 in which a clearance gx2 between columnar piezoelectric bodies 302 at the stripe electrodes 304 is widened to the extent for which a crosstalk is not a problem and a clearance gx1 between the columnar piezoelectric bodies 302 is narrowed in the stripe electrodes 304 as much as possible, the probe is constituted. Thus, a composite piezoelectric body, which satisfies a prescribed volume ratio, is small in the crosstalk and flexible, can be realized and the probe can be realized with it.

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