专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5295485A Ultrasonic diagnostic system 失效
标题翻译：超声诊断系统
公开(公告)号：US5295485A
公开(公告)日：1994-03-22
申请号：US986905
申请日：1992-12-08
申请人： Ryuuichi Shinomura , Wasao Takasugi , Yoshikuni Matsunaga , Kageyoshi Katakura
发明人： Ryuuichi Shinomura , Wasao Takasugi , Yoshikuni Matsunaga , Kageyoshi Katakura
IPC分类号： A61B8/00 , A61B8/06 , A61B8/08 , G01N29/06 , G01N29/44 , G01S7/52 , G01S15/89
CPC分类号： G01S15/899 , A61B8/06 , A61B8/08 , A61B8/4427 , A61B8/4438 , G01S7/52017 , G01S7/52055 , G06F19/3487 , G06F19/3406
摘要： An ultrasonic diagnostic system includes a probe composed of a group of transducers for transmitting and receiving an ultrasonic wave, a main system connected with the probe by a cable, a memory card, and a battery pack for supplying power. The ultrasonic diagnostic system further includes a data processing unit and a monitor which are provided separately from the above components. The probe and main system are prepared for each ultrasonic scanning mode. The data processing unit subjects the received signal data recorded in the memory card to sophisticated data processing which cannot be carried out by the main system thereby to display the processing result. An examiner can carry the probe, main system, memory card and the battery pack for supplying power instead of a stethoscope to acquires diagnosis data and can process a suspicious image in diagnosis at bedside or house call using the data processing unit thereby to implement precise diagnosis.
摘要翻译：超声波诊断系统包括由用于发送和接收超声波的一组换能器组成的探针，通过电缆与探头连接的主系统，存储卡和用于供电的电池组。超声波诊断系统还包括与上述部件分开设置的数据处理单元和监视器。为每个超声波扫描模式准备探头和主系统。数据处理单元将记录在存储卡中的接收信号数据进行对主系统无法执行的复杂数据处理，从而显示处理结果。检查者可以携带用于供电而不是听诊器的探针，主系统，存储卡和电池组以获取诊断数据，并且可以使用数据处理单元在床边或房屋呼叫处理可疑图像以进行诊断，从而实现精确诊断。

2. 发明授权

US5489847A RF probe for MRI 失效
标题翻译：射频探针用于MRI
公开(公告)号：US5489847A
公开(公告)日：1996-02-06
申请号：US252624
申请日：1994-06-01
申请人： Takayuki Nabeshima , Tetsuhiko Takahashi , Yoshikuni Matsunaga , Etsuji Yamamoto , Kageyoshi Katakura
发明人： Takayuki Nabeshima , Tetsuhiko Takahashi , Yoshikuni Matsunaga , Etsuji Yamamoto , Kageyoshi Katakura
IPC分类号： A61B5/055 , G01R33/34 , G01R33/36 , G01V3/00
CPC分类号： G01R33/34053 , G01R33/3415 , G01R33/365 , G01R33/3678 , G01R33/3628
摘要： An RF probe for MRI, in which a plurality of unit coils including conductive loops having resonance capacitors and inductors connected with the conductive loops in series are arranged so as to be distant from each other with a predetermined distance, electromagnetic coupling being produced between at least two inductors to remove electromagnetic coupling between the unit coils.
摘要翻译：一种用于MRI的RF探针，其中包括具有谐振电容器的导电回路和串联的导电回路的电感器的多个单位线圈布置成彼此远离预定距离，至少在至少两个电感器去除单元线圈之间的电磁耦合。

3. 发明授权

US08154344B2 RF power amplifier 有权
标题翻译：射频功率放大器
公开(公告)号：US08154344B2
公开(公告)日：2012-04-10
申请号：US13166312
申请日：2011-06-22
申请人： Masao Kondo , Yoshikuni Matsunaga , Kenta Seki , Satoshi Sakurai
发明人： Masao Kondo , Yoshikuni Matsunaga , Kenta Seki , Satoshi Sakurai
IPC分类号： H03F3/26
CPC分类号： H03F3/193 , H01L2224/0603 , H01L2224/48091 , H01L2224/48227 , H01L2224/49111 , H03F1/0272 , H03F1/565 , H03F3/195 , H03F3/21 , H03F3/245 , H03F3/26 , H03F3/265 , H03F3/45179 , H03F3/45475 , H03F3/68 , H03F2200/105 , H03F2200/222 , H03F2200/387 , H03F2200/411 , H03F2200/451 , H03F2200/465 , H03F2200/534 , H03F2200/541 , H03F2203/45481 , H03F2203/45544 , H03F2203/45621 , H03F2203/45631 , H03F2203/45731 , H01L2924/00014
摘要： A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which are magnetically coupled to each other. To the input terminals of the transistors, respective input signals are supplied. The primary coil is coupled to each of the output terminals of the transistors. From the secondary coil, an output signal is generated. The primary coil includes a first coil and a second coil which are coupled in parallel between the respective output terminals of the transistors, and each magnetically coupled to the secondary coil. By the parallel coupling of the first and second coils of the primary coil, the input impedance of the primary coil is reduced.
摘要翻译：在作为输出匹配电路的变压器（电压互感器）的初级侧输入阻抗中实现减小，而不涉及Q因子的降低。 RF功率放大器包括晶体管和变压器作为输出匹配电路。变压器具有彼此磁耦合的初级线圈和次级线圈。对于晶体管的输入端，提供相应的输入信号。初级线圈耦合到晶体管的每个输出端子。从次级线圈产生输出信号。初级线圈包括第一线圈和第二线圈，它们并联耦合在晶体管的相应输出端之间，并且每一个磁耦合到次级线圈。通过初级线圈的第一和第二线圈的并联耦合，初级线圈的输入阻抗减小。

4. 发明授权

US06384688B1 High-frequency power amplifier module 失效
标题翻译：高频功率放大器模块
公开(公告)号：US06384688B1
公开(公告)日：2002-05-07
申请号：US09673977
申请日：2000-10-25
申请人： Toru Fujioka , Isao Yoshida , Mineo Katsueda , Masatoshi Morikawa , Yoshikuni Matsunaga , Kenji Sekine , Osamu Kagaya
发明人： Toru Fujioka , Isao Yoshida , Mineo Katsueda , Masatoshi Morikawa , Yoshikuni Matsunaga , Kenji Sekine , Osamu Kagaya
IPC分类号： H03F304
CPC分类号： H03F3/72 , H03F3/193 , H03F3/211 , H03F2200/306 , H03F2200/309 , H03F2200/39 , H03F2200/429 , H04B1/0053 , H04B1/0458
摘要： A radio frequency power amplifier module for a dual-band type mobile communication apparatus that can transmit and receive the first frequency f1 and the second frequency f2 (f2=2×f1) is structured as explained below. This radio frequency power amplifier module for dual-band type mobile communication apparatus is comprised of a drive stage amplifier having the gain peaks at f1 and f2 with a matching circuit and a radio frequency power output circuit including a radio frequency power output transistor. The output circuit is constituted of a transmission line connected to the drain end of the output transistor, a parallel resonance circuit connected in series to the transmission line to resonate at the harmonics in the frequency twice the frequency f2, a series resonance circuit provided between one end of the resonance circuit and the ground to resonate at the harmonics in the frequency twice the frequency f2 and an output matching circuit provided in series to the other end of the parallel resonance circuit for the matching with f1 and f2. The transmission line is set to terminate at the drain end for the even number order harmonics of f2 with the reactance existing at the drain end and a circuit element constant forming the parallel resonance circuit is set to open at the drain end for the odd number order harmonics of f2 with the series resonance circuit, transmission line and reactance existing at the drain end. With the structure explained above, since harmonics power can be controlled through control of the predetermined harmonics, high efficiency and reduction in size of the radio frequency power amplifier module can be realized.
摘要翻译：可以发送和接收第一频率f1和第二频率f2（f2 = 2xf1）的用于双频带型移动通信装置的射频功率放大器模块如下所述地构成。该射频功率放大器模块用于双频型移动通信装置包括具有匹配电路的具有在f1和f2的增益峰值的驱动级放大器和包括射频功率输出晶体管的射频功率输出电路。输出电路由连接到输出晶体管的漏极端的传输线构成，并联谐振电路与传输线串联连接，以频率f2的频率谐振地谐振，串联谐振电路设置在一个谐振电路的端部和谐振频率为频率f2的频率的谐波的接地和与并联谐振电路的另一端串联设置以用于与f1和f2匹配的输出匹配电路。传输线被设置为在漏极端处终止，其中存在于漏极端处的电抗的偶数次谐波为f2，并且形成并联谐振电路的电路元件常数设置为在漏极端处为奇数阶开路具有串联谐振电路的f2谐波，漏极端存在的传输线和电抗。通过上述结构，由于能够通过控制预定谐波来控制谐波功率，高效率和减小射频功率放大器的尺寸模块可以实现。

5. 发明授权

US5453692A RF probe for nuclear magnetic resonance imaging (MRI) devices 失效
标题翻译：用于核磁共振成像（MRI）装置的RF探针
公开(公告)号：US5453692A
公开(公告)日：1995-09-26
申请号：US98816
申请日：1993-07-29
申请人： Tetsuhiko Takahashi , Yoshikuni Matsunaga , Etsuji Yamamoto , Hiroyuki Itagaki
发明人： Tetsuhiko Takahashi , Yoshikuni Matsunaga , Etsuji Yamamoto , Hiroyuki Itagaki
IPC分类号： G01R33/34 , G01V3/00
CPC分类号： G01R33/3415 , G01R33/34046 , G01R33/365
摘要： An RF probe for an MRI device including a plurality of hollow cylindrical resonators arranged in series such that the respective axes of the resonators align substantially in a z-axis direction of a three dimensional orthogonal coordinate system, radio frequency power signal supply/reception pickup coils to/from the respective resonators; and loop coils situated riding on two adjacent resonators in x- and y-axis directions, and an electromagnetic shield which surrounds the hollow cylindrical resonators, pickup coils and loop coils and grounded with respect to radio frequency.
摘要翻译：一种用于MRI装置的RF探针，其包括串联布置的多个中空圆柱形谐振器，使得谐振器的各个轴线基本上在三维正交坐标系的z轴方向上对准，射频功率信号供应/接收拾取线圈来自相应的谐振器; 以及围绕x和y轴方向的两个相邻谐振器上的环形线圈，以及围绕中空圆柱形谐振器，拾取线圈和环形线圈并相对于射频接地的电磁屏蔽。

6. 发明授权

US08339204B2 Semiconductor device 有权
标题翻译：半导体器件
公开(公告)号：US08339204B2
公开(公告)日：2012-12-25
申请号：US13064897
申请日：2011-04-25
申请人： Toshihiko Shimizu , Yoshikuni Matsunaga , Yuri Kusakari
发明人： Toshihiko Shimizu , Yoshikuni Matsunaga , Yuri Kusakari
IPC分类号： H03F3/14
CPC分类号： H03F3/195 , H01L23/66 , H01L24/48 , H01L24/49 , H01L2224/32225 , H01L2224/48091 , H01L2224/48227 , H01L2224/49171 , H01L2924/00014 , H01L2924/01079 , H01L2924/1305 , H01L2924/13091 , H01L2924/14 , H01L2924/15153 , H01L2924/1517 , H01L2924/19041 , H01L2924/19105 , H01L2924/30107 , H01L2924/3011 , H01L2924/3025 , H03F3/68 , H03F2200/111 , H03F2200/451 , H01L2924/00 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
摘要： Power amplifier circuits which constitute an RF power module used for a digital device capable of handling high frequency signals in two frequency bands are disposed over the same IC chip. The power amplifier circuits are disposed around the IC chip, and a secondary circuit is disposed between the power amplifier circuits. Thus, the power amplifier circuits are provided within the same IC chip to enable a size reduction. Further, the distance between the power amplifier circuits is ensured even if the power amplifier circuits are provided within the same IC chip. It is therefore possible to suppress the coupling between the power amplifier circuits and restrain crosstalk between the power amplifier circuits.
摘要翻译：构成用于能够处理两个频带中的高频信号的数字装置的RF功率模块的功率放大器电路设置在相同的IC芯片上。功率放大器电路设置在IC芯片周围，并且次级电路设置在功率放大器电路之间。因此，功率放大器电路设置在同一IC芯片内以实现尺寸减小。此外，即使功率放大器电路设置在同一IC芯片内，功率放大器电路之间的距离也得到保证。因此可以抑制功率放大器电路之间的耦合并抑制功率放大器电路之间的串扰。

7. 发明申请

US20110199158A1 Semiconductor device 有权
标题翻译：半导体器件
公开(公告)号：US20110199158A1
公开(公告)日：2011-08-18
申请号：US13064897
申请日：2011-04-25
申请人： Toshihiko Shimizu , Yoshikuni Matsunaga , Yuri Kusakari
发明人： Toshihiko Shimizu , Yoshikuni Matsunaga , Yuri Kusakari
IPC分类号： H03F3/16
CPC分类号： H03F3/195 , H01L23/66 , H01L24/48 , H01L24/49 , H01L2224/32225 , H01L2224/48091 , H01L2224/48227 , H01L2224/49171 , H01L2924/00014 , H01L2924/01079 , H01L2924/1305 , H01L2924/13091 , H01L2924/14 , H01L2924/15153 , H01L2924/1517 , H01L2924/19041 , H01L2924/19105 , H01L2924/30107 , H01L2924/3011 , H01L2924/3025 , H03F3/68 , H03F2200/111 , H03F2200/451 , H01L2924/00 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
摘要： Power amplifier circuits which constitute an RF power module used for a digital device capable of handling high frequency signals in two frequency bands are disposed over the same IC chip. The power amplifier circuits are disposed around the IC chip, and a secondary circuit is disposed between the power amplifier circuits. Thus, the power amplifier circuits are provided within the same IC chip to enable a size reduction. Further, the distance between the power amplifier circuits is ensured even if the power amplifier circuits are provided within the same IC chip. It is therefore possible to suppress the coupling between the power amplifier circuits and restrain crosstalk between the power amplifier circuits.
摘要翻译：构成用于能够处理两个频带中的高频信号的数字装置的RF功率模块的功率放大器电路设置在相同的IC芯片上。功率放大器电路设置在IC芯片周围，并且次级电路设置在功率放大器电路之间。因此，功率放大器电路设置在同一IC芯片内以实现尺寸减小。此外，即使功率放大器电路设置在同一IC芯片内，功率放大器电路之间的距离也得到保证。因此可以抑制功率放大器电路之间的耦合并抑制功率放大器电路之间的串扰。

8. 发明申请

US20060290431A1 Semiconductor device 有权
公开(公告)号：US20060290431A1
公开(公告)日：2006-12-28
申请号：US11505472
申请日：2006-08-17
申请人： Toshihiko Shimizu , Yoshikuni Matsunaga , Yuri Kusakari
发明人： Toshihiko Shimizu , Yoshikuni Matsunaga , Yuri Kusakari
IPC分类号： H03F3/14
CPC分类号： H03F3/195 , H01L23/66 , H01L24/48 , H01L24/49 , H01L2224/32225 , H01L2224/48091 , H01L2224/48227 , H01L2224/49171 , H01L2924/00014 , H01L2924/01079 , H01L2924/1305 , H01L2924/13091 , H01L2924/14 , H01L2924/15153 , H01L2924/1517 , H01L2924/19041 , H01L2924/19105 , H01L2924/30107 , H01L2924/3011 , H01L2924/3025 , H03F3/68 , H03F2200/111 , H03F2200/451 , H01L2924/00 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
摘要： Power amplifier circuits which constitute an RF power module used for a digital device capable of handling high frequency signals in two frequency bands are disposed over the same IC chip. The power amplifier circuits are disposed around the IC chip, and a secondary circuit is disposed between the power amplifier circuits. Thus, the power amplifier circuits are provided within the same IC chip to enable a size reduction. Further, the distance between the power amplifier circuits is ensured even if the power amplifier circuits are provided within the same IC chip. It is therefore possible to suppress the coupling between the power amplifier circuits and restrain crosstalk between the power amplifier circuits.

9. 发明申请

US20060197600A1 High frequency power amplifier circuit device 有权
标题翻译：高频功率放大器电路设备
公开(公告)号：US20060197600A1
公开(公告)日：2006-09-07
申请号：US11414337
申请日：2006-05-01
申请人： Yoshikuni Matsunaga , Toshihiko Shimizu , Tomio Furuya , Nobuhiro Matsudaira , Koichi Matsushita
发明人： Yoshikuni Matsunaga , Toshihiko Shimizu , Tomio Furuya , Nobuhiro Matsudaira , Koichi Matsushita
IPC分类号： H03G3/10
CPC分类号： H03F1/0261 , H03F2200/465 , H03G1/0017 , H03G3/3042 , H03G3/3047
摘要： A multistage high frequency power amplifier-circuit device has a plurality of semiconductor amplification elements connected in a cascade. The circuit device is provided with a bias control circuit used to control the bias voltage or bias current of the output semiconductor amplification element in each stage so as to reduce the variation of the output power with respect to the power control signal voltage in an area around the threshold voltage of the semiconductor amplification elements. This realizes a high frequency power amplifier circuit device provided with excellent controllability of the output power and high efficiency at the time of low power output realized with use of such a control voltage as a power control signal.
摘要翻译：多级高频功率放大器电路装置具有串联连接的多个半导体放大元件。电路装置设置有偏置控制电路，用于控制各级输出半导体放大元件的偏置电压或偏置电流，以便减少相对于周围区域内的功率控制信号电压的输出功率的变化半导体放大元件的阈值电压。这实现了在使用诸如功率控制信号的这种控制电压实现的低功率输出时，输出功率具有优异的可控制性和高效率的高频功率放大器电路器件。

10. 发明授权

US5592088A Multiple-coil adopting a quadrature detection method applied thereto and a signal processing circuit employing the same in an MRI apparatus in a vertical magnetic system 失效
标题翻译：采用应用正交检测方法的多线圈和在垂直磁系统中的MRI装置中采用该线圈的信号处理电路。
公开(公告)号：US5592088A
公开(公告)日：1997-01-07
申请号：US427868
申请日：1995-04-26
申请人： Yoshikuni Matsunaga , Tetsuhiko Takahashi , Etsuji Yamamoto
发明人： Yoshikuni Matsunaga , Tetsuhiko Takahashi , Etsuji Yamamoto
IPC分类号： G01R33/34 , G01R33/341 , G01R33/3415 , G01R33/36 , G01R33/48
CPC分类号： G01R33/34053 , G01R33/34061 , G01R33/3415 , G01R33/3621 , G01R33/3678
摘要： A probe for an MRI apparatus in a vertical magnetic field system including: an array coil which is formed by arranging a plurality of unit coils, which can be driven independently of one another, in a direction perpendicularly intersecting a direction of a static magnetic field; and a compensating coil which forms a magnetic field in a direction perpendicularly intersecting both a direction of a magnetic field formed by the array coil and the direction of the magnetic field, a signal detected by the array coil and a signal detected by the compensating coil being composed so as to be in phase with each other, thereby to be outputted.
摘要翻译：一种用于垂直磁场系统中的MRI装置的探针，包括：阵列线圈，其通过在与静磁场方向垂直相交的方向上排列可彼此独立地驱动的多个单位线圈形成; 以及补偿线圈，其在与由阵列线圈形成的磁场的方向和磁场方向垂直相交的方向上形成磁场，由阵列线圈检测的信号和由补偿线圈检测的信号是被构成为彼此同相，从而被输出。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式