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1. 发明授权

EP0351610B1 Ultrasonic apparatus for therapeutical use 失效
标题翻译：用于治疗用途的超声装置
公开(公告)号：EP0351610B1
公开(公告)日：2000-03-15
申请号：EP89112008.1
申请日：1989-06-30
申请人： Hitachi, Ltd.
发明人： Umemura, Shinichiro , Yumita, Nagahiko , Umemura, Koshiro , Katakura, Kageyoshi
IPC分类号： A61B19/00 , A61B17/22
CPC分类号： A61M37/0092 , A61B2017/22008 , A61B2017/22028 , A61B2017/22088 , A61N7/00 , A61N7/02 , A61N2007/006 , A61N2007/0078 , A61N2007/0095 , A61N2007/027

2. 发明公开

EP0214782A3 Ultrasonic irradiation system 失效
标题翻译：超声辐射系统
公开(公告)号：EP0214782A3
公开(公告)日：1988-08-03
申请号：EP86306338
申请日：1986-08-15
申请人： HITACHI, LTD.
发明人： Umemura, Shinichiro , Cain, Charles Arain , Katakura, Kageyoshi
IPC分类号： G10K11/34
CPC分类号： G10K11/346 , A61B17/22012 , A61N2007/0052 , A61N2007/0065 , A61N2007/027 , G01N2291/02491
摘要： An ultrasonic irradiation system has a transducer (1) which is composed of a plurality of elements divided at least in a circumferential direction of the face of the transducer (1) so that the phases of drive signals may be changed according to the respective circumferential positions of the oscillating elements. This permits the phases of the drive signals to be rotated by n rotations in the circumferential direction. As a result, an annular focal zone having a desired radius is formed, and the integrated values of sound waves in the circumferential direction may be substantially zero on the focal plane so that no unnecessary secondary focal zone is formed.

3. 发明公开

EP2026100A1 Ultrasound imaging apparatus 有权
标题翻译： Ultraschallbildgebungsvorrichtung
公开(公告)号：EP2026100A1
公开(公告)日：2009-02-18
申请号：EP08003739.3
申请日：2008-02-28
申请人： Hitachi, Ltd.
发明人： Umemura, Shinichiro , Azuma, Takashi
IPC分类号： G01S15/89 , G01S7/52
CPC分类号： G01S15/8952 , G01S7/52046
摘要： With a natural number n, an ultrasound pulse having a center frequency of nf 0 is transmitted, and an echo wave produced by the reflection at an acoustic-impedance interface within the object to be examined is received. Another ultrasound pulse having a center frequency of (n + 1) f 0 is transmitted, and, similarly, an echo wave produced by the reflection at an acoustic-impedance interface within the object to be examined is received. The received echo signal which has a center frequency of nf 0 is raised to the power of (n + 1) in a self-multiplication unit. Meanwhile, The received echo signal having a center frequency of (n + 1) f 0 is raised to the power of n in another self-multiplication unit. Each multiplication produces a signal having a center frequency of n (n + 1) f 0 . A signed echo signal is obtained by a phase-sensitive detection between the two obtained signals.
摘要翻译：利用自然数n，发送具有nf 0的中心频率的超声波脉冲，并且接收通过在待检测对象内的声阻抗界面处的反射而产生的回波。发送具有（n + 1）f 0的中心频率的另一个超声波脉冲，并且类似地，接收由待检查对象内的声阻抗界面处的反射产生的回波。接收到的中心频率为nf 0的回波信号在自乘单元中升高到（n + 1）的功率。同时，具有中心频率（n + 1）f 0的接收回波信号在另一自乘单元中升高到n的幂。每个乘法产生具有中心频率n（n + 1）f 0的信号。通过两个获得的信号之间的相敏检测获得有符号回波信号。

4. 发明公开

EP0538241A2 Ultrasonic apparatus for therapeutical use 失效
标题翻译： Gebrauch的Ultraschallvorrichtungfürapeutischen。
公开(公告)号：EP0538241A2
公开(公告)日：1993-04-21
申请号：EP93100294.3
申请日：1989-06-30
申请人： HITACHI, LTD.
发明人： Umemura, Shinichiro , Yumita, Nagahiko , Umemura, Koshiro , Katakura, Kageyoshi
IPC分类号： A61B19/00 , A61K41/00
CPC分类号： A61M37/0092 , A61B2017/22008 , A61B2017/22028 , A61B2017/22088 , A61N7/00 , A61N7/02 , A61N2007/006 , A61N2007/0078 , A61N2007/0095 , A61N2007/027
摘要： An ultrasonic apparatus for thereapeutical use, especially for remedying a malignant tumor, activates a drug at a desired local portion inside of a living body by sequentially irradiating a plurality kinds of convergent ultrasonic waves having different focal positions of different acoustic pressure distribution shapes but having a mutually overlapping focal zone and by switching them within a short period. The drug is activated as a promotor for an ultrasonic therapeutical effect through continuous generation and rupture of cavitation caused by the irradiated and switched ultrasonic waves.
摘要翻译：用于治疗用途的超声波装置，特别是用于治疗恶性肿瘤的方法，通过依次照射具有不同声压分布形状的不同焦点位置的多种收敛超声波，但具有相互重叠的焦点区域，并在短时间内切换。该药物作为超声治疗效果的启动剂被激活，通过连续发生和由照射和切换的超声波引起的气蚀破裂。

5. 发明授权

EP1736247B1 Sound-electricity conversion device, array-type ultrasonic transducer, and ultrasonic diagnostic apparatus 有权
标题翻译： Elektroacoustischer换能器，超声相控阵列和超声波诊断装置
公开(公告)号：EP1736247B1
公开(公告)日：2014-05-14
申请号：EP06001863.7
申请日：2006-01-30
申请人： HITACHI, LTD.
发明人： Umemura, Shinichiro , Azuma, Takashi, Hitachi, Ltd. , Nagata, Tatsuya, Hitachi, Ltd. , Fukuda, Hiroshi, Hitachi, Ltd. , Mine, Toshiyuki, Hitachi, Ltd. , Machida, Syuntaro, Hitachi, Ltd.
IPC分类号： B06B1/02
CPC分类号： B06B1/0292

6. 发明公开

EP1736247A2 Sound-electricity conversion device, array-type ultrasonic transducer, and ultrasonic diagnostic apparatus 有权
标题翻译： Elektroacoustischer Wandler，Ultraschall-Gruppenstrahler和Ultraschalldiagnoseapparatur
公开(公告)号：EP1736247A2
公开(公告)日：2006-12-27
申请号：EP06001863.7
申请日：2006-01-30
申请人： HITACHI, LTD.
发明人： Umemura, Shinichiro , Azuma, Takashi, Hitachi, Ltd. , Nagata, Taksuya, Hitachi, Ltd. , Fukuda, Hiroshi, Hitachi, Ltd. , Mine, Toshiyuki, Hitachi, Ltd. , Machida, Yuntaroi, Hitachi, Ltd.
IPC分类号： B06B1/02
CPC分类号： B06B1/0292
摘要： The present invention aims to stabilize sound-electricity conversion characteristics of a diaphragm-type sound-electricity conversion device as well as to decrease the noise level of an ultrasonic diagnostic apparatus using the sound-electricity conversion device. The sound-electricity conversion device is configured by a capacitor cell including a lower electrode formed on a silicon substrate and an upper electrode over the lower electrode, the lower and upper electrodes sandwiching a cavity. An electrode short-circuit prevention film is formed on the upper electrode on the cavity side. The electrode short-circuit prevention film is formed of a material with an electrical time constant shorter than 1 second and longer than 10 microseconds, such as silicon nitride containing a stoichiometrically excessive amount of silicon. As a result, the electrode short-circuit prevention film has small electric conductivity, and thus it is made possible to prevent the film from being charged with electric charge and to avoid the drift of the electric charge. Consequently, the sound-electricity conversion characteristics of the sound-electricity conversion device stabilize, and further the sound noise level of the ultrasonic diagnostic apparatus decreases.
摘要翻译：本发明旨在稳定隔膜型声电转换装置的声电转换特性，并且降低使用声电转换装置的超声波诊断装置的噪声水平。声电转换装置由包括形成在硅基板上的下电极和下电极上的上电极的电容器单元构成，下电极单元和上电极夹着空腔。在空腔侧的上部电极上形成电极短路防止膜。电极短路防止膜由电气时间常数短于1秒且长于10微秒的材料形成，例如含有化学计量过量的硅的氮化硅。结果，电极短路防止膜具有小的导电性，因此能够防止膜被电荷充电并避免电荷的漂移。因此，声电转换装置的声电转换特性稳定，超声波诊断装置的声音噪声水平进一步降低。

7. 发明授权

EP0214782B1 Ultrasonic irradiation system 失效
标题翻译：超声辐射系统
公开(公告)号：EP0214782B1
公开(公告)日：1992-06-24
申请号：EP86306338.4
申请日：1986-08-15
申请人： HITACHI, LTD.
发明人： Umemura, Shinichiro , Cain, Charles Arain , Katakura, Kageyoshi
IPC分类号： G10K11/34
CPC分类号： G10K11/346 , A61B17/22012 , A61N2007/0052 , A61N2007/0065 , A61N2007/027 , G01N2291/02491

8. 发明授权

EP0119019B1 Ultrasonic diagnosis system 失效
标题翻译：超声诊断系统
公开(公告)号：EP0119019B1
公开(公告)日：1988-10-26
申请号：EP84300938.2
申请日：1984-02-14
申请人： HITACHI, LTD.
发明人： Umemura, Shinichiro , Katakura, Kageyoshi , Ogawa, Toshio
IPC分类号： G01S7/52 , G01S7/62 , G01S15/89 , G10K11/34
CPC分类号： A61B8/00 , G01S7/52046 , G01S7/52065 , G01S15/8918 , G01S15/8927 , G10K11/345

9. 发明公开

EP0214782A2 Ultrasonic irradiation system 失效
标题翻译： Ultraschall-Bestrahlungsanordnung。
公开(公告)号：EP0214782A2
公开(公告)日：1987-03-18
申请号：EP86306338.4
申请日：1986-08-15
申请人： HITACHI, LTD.
发明人： Umemura, Shinichiro , Cain, Charles Arain , Katakura, Kageyoshi
IPC分类号： G10K11/34
CPC分类号： G10K11/346 , A61B17/22012 , A61N2007/0052 , A61N2007/0065 , A61N2007/027 , G01N2291/02491
摘要： An ultrasonic irradiation system has a transducer (1) which is composed of a plurality of elements divided at least in a circumferential direction of the face of the transducer (1) so that the phases of drive signals may be changed according to the respective circumferential positions of the oscillating elements. This permits the phases of the drive signals to be rotated by n rotations in the circumferential direction. As a result, an annular focal zone having a desired radius is formed, and the integrated values of sound waves in the circumferential direction may be substantially zero on the focal plane so that no unnecessary secondary focal zone is formed.
摘要翻译：超声波照射系统具有由至少在振子（1）的面的周向划分的多个元件构成的换能器（1），使得驱动信号的相位可以根据相应的周向位置的振荡元件。这允许驱动信号的相位在圆周方向上旋转n圈。结果，形成具有期望半径的环形聚焦区域，并且在圆周方向上的声波的积分值在焦平面上可以基本上为零，使得不形成不必要的二次聚焦区域。

10. 发明公开

EP1736247A3 Sound-electricity conversion device, array-type ultrasonic transducer, and ultrasonic diagnostic apparatus 有权
标题翻译： Elektroacoustischer换能器，超声相控阵列和超声波诊断装置
公开(公告)号：EP1736247A3
公开(公告)日：2012-08-22
申请号：EP06001863.7
申请日：2006-01-30
申请人： HITACHI, LTD.
发明人： Umemura, Shinichiro , Azuma, Takashi, Hitachi, Ltd. , Nagata, Taksuya, Hitachi, Ltd. , Fukuda, Hiroshi, Hitachi, Ltd. , Mine, Toshiyuki, Hitachi, Ltd. , Machida, Yuntaroi, Hitachi, Ltd.
IPC分类号： B06B1/02
CPC分类号： B06B1/0292
摘要： The present invention aims to stabilize sound-electricity conversion characteristics of a diaphragm-type sound-electricity conversion device as well as to decrease the noise level of an ultrasonic diagnostic apparatus using the sound-electricity conversion device. The sound-electricity conversion device is configured by a capacitor cell including a lower electrode formed on a silicon substrate and an upper electrode over the lower electrode, the lower and upper electrodes sandwiching a cavity. An electrode short-circuit prevention film is formed on the upper electrode on the cavity side. The electrode short-circuit prevention film is formed of a material with an electrical time constant shorter than 1 second and longer than 10 microseconds, such as silicon nitride containing a stoichiometrically excessive amount of silicon. As a result, the electrode short-circuit prevention film has small electric conductivity, and thus it is made possible to prevent the film from being charged with electric charge and to avoid the drift of the electric charge. Consequently, the sound-electricity conversion characteristics of the sound-electricity conversion device stabilize, and further the sound noise level of the ultrasonic diagnostic apparatus decreases.

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