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1. 发明授权

US09655589B2 Subject information acquisition apparatus 有权
公开(公告)号：US09655589B2
公开(公告)日：2017-05-23
申请号：US14110125
申请日：2012-04-05
申请人： Katsuya Oikawa , Kenichi Nagae , Makoto Yamakawa , Tsuyoshi Shiina
发明人： Katsuya Oikawa , Kenichi Nagae , Makoto Yamakawa , Tsuyoshi Shiina
IPC分类号： A61B8/00 , A61B8/08 , G01S7/52
CPC分类号： A61B8/485 , A61B8/085 , A61B8/0858 , A61B8/4483 , A61B8/5223 , A61B8/585 , G01S7/52042
摘要： Viscoelastic characteristics in a subject are imaged by a simple method.A viscoelasticity measurement reference layer whose elastic modulus and viscosity coefficient are known is included between an ultrasonic wave transmitting/receiving probe and the subject and distributions of elastic modulus and viscosity coefficient inside the subject are calculated from a change over time of strain generated in the viscoelasticity measurement reference layer and the subject according to a pressure applied to the subject which changes over time and known elastic modulus and viscosity coefficient of the viscoelasticity measurement reference layer.

2. 发明授权

US10321894B2 Specimen information acquisition apparatus 有权
公开(公告)号：US10321894B2
公开(公告)日：2019-06-18
申请号：US14119411
申请日：2012-05-11
申请人： Katsuya Oikawa , Makoto Yamakawa , Tsuyoshi Shiina
发明人： Katsuya Oikawa , Makoto Yamakawa , Tsuyoshi Shiina
IPC分类号： A61B8/08 , A61B8/00 , G01S7/52
摘要： The present invention relates to formation of an image indicating viscoelastic characteristics in a specimen by a simple method.Stepwise pressurization in which, after pressure is instantaneously increased to a certain pressure value, the certain pressure value is kept for a certain time period is performed to measure the variation with time of strain distribution in the specimen and to calculate a stress from strain distribution at a saturation measurement time when the effect of the viscosity of a viscoelasticity measurement reference layer is saturated, thereby evaluating the modulus of elasticity and the coefficient of viscosity of a body tissue.

3. 发明申请

US20140221833A1 SUBJECT INFORMATION ACQUISITION APPARATUS 有权
标题翻译：主体信息获取装置
公开(公告)号：US20140221833A1
公开(公告)日：2014-08-07
申请号：US14110125
申请日：2012-04-05
申请人： Katsuya Oikawa , Kenichi Nagae , Makoto Yamakawa , Tsuyoshi Shiina
发明人： Katsuya Oikawa , Kenichi Nagae , Makoto Yamakawa , Tsuyoshi Shiina
IPC分类号： A61B8/08
CPC分类号： A61B8/485 , A61B8/085 , A61B8/0858 , A61B8/4483 , A61B8/5223 , A61B8/585 , G01S7/52042
摘要： Viscoelastic characteristics in a subject are imaged by a simple method.A viscoelasticity measurement reference layer whose elastic modulus and viscosity coefficient are known is included between an ultrasonic wave transmitting/receiving probe and the subject and distributions of elastic modulus and viscosity coefficient inside the subject are calculated from a change over time of strain generated in the viscoelasticity measurement reference layer and the subject according to a pressure applied to the subject which changes over time and known elastic modulus and viscosity coefficient of the viscoelasticity measurement reference layer.
摘要翻译：受试者的粘弹性特征通过简单的方法成像。弹性模量和粘度系数已知的粘弹性测量参考层包括在超声波发射/接收探头和被摄体之间，并且由粘弹性产生的应变随时间变化计算被测物内的弹性模量和粘度系数的分布测量参考层和受试者根据随时间变化的受试者的压力和粘弹性测量参考层的已知弹性模量和粘度系数。

4. 发明申请

US20140206995A1 SPECIMEN INFORMATION ACQUISITION APPARATUS 审中-公开
标题翻译：样本信息获取装置
公开(公告)号：US20140206995A1
公开(公告)日：2014-07-24
申请号：US14119411
申请日：2012-05-11
申请人： Katsuya Oikawa , Makoto Yamakawa , Tsuyoshi Shiina
发明人： Katsuya Oikawa , Makoto Yamakawa , Tsuyoshi Shiina
IPC分类号： A61B8/08 , A61B8/00
CPC分类号： A61B8/485 , A61B8/0825 , A61B8/0858 , A61B8/403 , A61B8/4227 , A61B8/429 , A61B8/5223 , A61B8/54 , G01S7/52042
摘要： The present invention relates to formation of an image indicating viscoelastic characteristics in a specimen by a simple method.Stepwise pressurization in which, after pressure is instantaneously increased to a certain pressure value, the certain pressure value is kept for a certain time period is performed to measure the variation with time of strain distribution in the specimen and to calculate a stress from strain distribution at a saturation measurement time when the effect of the viscosity of a viscoelasticity measurement reference layer is saturated, thereby evaluating the modulus of elasticity and the coefficient of viscosity of a body tissue.
摘要翻译：本发明涉及通过简单的方法形成指示样品中的粘弹性特征的图像。逐步加压，其中压力瞬时增加到一定压力值后，一定压力值保持一定时间，以测量样品中应变分布随时间的变化，并计算应变分布的应力当粘弹性测量参考层的粘度的影响饱和时的饱和度测量时间，从而评估身体组织的弹性模量和粘度系数。

5. 发明授权

US08747318B2 Ultrasonic measurement apparatus 有权
标题翻译：超声波测量仪器
公开(公告)号：US08747318B2
公开(公告)日：2014-06-10
申请号：US12433006
申请日：2009-04-30
申请人： Tsuyoshi Shiina , Yasuhiro Someda , Kenichi Nagae , Katsuya Oikawa
发明人： Tsuyoshi Shiina , Yasuhiro Someda , Kenichi Nagae , Katsuya Oikawa
IPC分类号： A61B8/00
CPC分类号： A61B8/08 , A61B8/4477 , A61B8/485 , G01S7/52042 , G01S7/5209 , G01S15/8913 , G01S15/8993
摘要： A sample moves, either naturally (as in the case of the heart) or by application of force, and its movement is measured. A processing unit calculates first displacement related information concerning a first direction of the object to be measured (the sample) by using data in either one of an increase period and a decrease period of the force applied to the objected to be measured, from data received by a first ultrasonic probe. In addition, the processing unit calculates second displacement related information concerning a second direction of the object to be measured by using data in the same period as that used to calculate the first displacement related information, from data received by a second ultrasonic probe.
摘要翻译：样本自然地移动（如在心脏的情况下）或通过施加力，并且测量其运动。处理单元通过使用从接收到的被接收的被测对象的力的增加期间和减少期间中的任一个中的数据来计算关于待测量对象的第一方向（样本）的第一位移相关信息通过第一超声波探头。此外，处理单元从与第二超声波探头接收的数据相对应地使用与用于计算第一位移相关信息的数据相同的周期内的数据，计算与被测量物体的第二方向有关的第二位移关联信息。

6. 发明申请

US20090275837A1 ULTRASONIC MEASUREMENT APPARATUS 有权
标题翻译：超声波测量装置
公开(公告)号：US20090275837A1
公开(公告)日：2009-11-05
申请号：US12433006
申请日：2009-04-30
申请人： TSUYOSHI SHIINA , Yasuhiro Someda , Kenichi Nagae , Katsuya Oikawa
发明人： TSUYOSHI SHIINA , Yasuhiro Someda , Kenichi Nagae , Katsuya Oikawa
IPC分类号： A61B8/13
CPC分类号： A61B8/08 , A61B8/4477 , A61B8/485 , G01S7/52042 , G01S7/5209 , G01S15/8913 , G01S15/8993
摘要： A processing unit calculates first displacement related information concerning a first direction of an object to be measured by using data in either one of an increase period and a decrease period of a force applied to the objected to be measured, among first received data received by a first ultrasonic probe. In addition, the processing unit calculates second displacement related information concerning a second direction of the object to be measured by using data in the same period as that used to calculate the first displacement related information, among second received data received by a second ultrasonic probe.
摘要翻译：处理单元通过使用由被加载对象物被测量的力的增加期间和减少期间中的任一个中的数据中的数据来计算与被测量物体的第一方向有关的第一位移相关信息第一超声波探头。此外，处理单元在由第二超声波探头接收的第二接收数据中，通过使用与用于计算第一位移相关信息的相同周期中的数据，来计算关于待测量对象的第二方向的第二位移相关信息。

7. 发明申请

US20110208057A1 SUBJECT INFORMATION PROCESSING APPARATUS 审中-公开
标题翻译：主体信息处理装置
公开(公告)号：US20110208057A1
公开(公告)日：2011-08-25
申请号：US13029245
申请日：2011-02-17
申请人： Katsuya Oikawa
发明人： Katsuya Oikawa
IPC分类号： A61B8/14
CPC分类号： A61B8/14 , A61B5/0035 , A61B5/0095 , A61B8/4416
摘要： A subject information processing apparatus having a first device array for transmitting/receiving an elastic wave; a first signal processor for generating a tomographic image from a signal received by the first device array; a second device array for receiving an elastic wave which is generated by irradiating light onto a subject; and a second signal processor for generating a three-dimensional image from a signal received by the second device array. The first device array transmits/receives the elastic wave diagonally with respect to a surface of the subject so that a region in the subject where the tomographic image is obtained and a region in the subject where the three-dimensional image is obtained overlap.
摘要翻译：一种具有用于发送/接收弹性波的第一装置阵列的被摄体信息处理装置; 第一信号处理器，用于从由所述第一设备阵列接收的信号产生断层图像; 第二装置阵列，用于接收通过将光照射到被摄体上而产生的弹性波; 以及第二信号处理器，用于根据由第二设备阵列接收的信号产生三维图像。第一装置阵列相对于被摄体的表面倾斜地发送/接收弹性波，使得获得断层图像的被摄体中的区域和获得三维图像的被摄体中的区域重叠。

8. 发明授权

US5299059A Plural-beam optical head including a uniaxial crystal right triangular prism beam divider 失效
标题翻译：多光束光头包括单轴晶体直角三角棱镜分束器
公开(公告)号：US5299059A
公开(公告)日：1994-03-29
申请号：US873833
申请日：1992-04-27
申请人： Katsuya Oikawa
发明人： Katsuya Oikawa
IPC分类号： G02B27/09 , G02B1/08 , G02B27/28 , G11B7/135 , G11B7/14 , G02B27/10 , G02B5/30
CPC分类号： G11B7/1359 , G02B1/08 , G02B27/283
摘要： In a plural-beam optical head, a linearly polarized light is generated and the linearly polarized light is divided into a plural light beams by the light beam dividing device which is a substantially right triangular prism formed of single-axis crystal. The prism has its inclined surface defined as a total reflection surface and its two sides substantially orthogonal to each other defined as an entrance surface and an exit surface, and is disposed so that the direction of the main axis of the crystal of the prism may form any other angle than 0 degree with respect to all of the direction of the plane normal to the total reflection surface, the direction of the normal to the incidence wave front onto the total reflection surface, the direction of the normal to the reflected wave front from the total reflection surface, the direction of the normal to a plane determined by the normal to the incidence wave front and the normal to the reflected wave front, and the direction of the line of intersection between the plane and the total reflection surface.
摘要翻译：在多光束光学头中，通过由单轴晶体构成的大致正三角形的棱镜的光束分割装置，产生线偏振光，并将线偏振光分割为多个光束。棱镜的倾斜面被限定为全反射面，其两侧基本上彼此正交，被定义为入射面和出射面，并且被配置为使棱镜的晶体的主轴的方向形成相对于垂直于全反射面的平面的所有方向的0度以上的任何其他角度，对全反射面的入射波前方的法线方向，反射波前方的法线方向全反射面，由入射波前方的法线决定的平面法线方向与反射波前方的法线方向以及平面与全反射面的交线方向。

9. 发明授权

US09116225B2 Measuring apparatus 有权
标题翻译：测量装置
公开(公告)号：US09116225B2
公开(公告)日：2015-08-25
申请号：US13266981
申请日：2010-04-28
申请人： Haruo Yoda , Katsuya Oikawa , Kenichi Nagae
发明人： Haruo Yoda , Katsuya Oikawa , Kenichi Nagae
IPC分类号： G01S7/52 , G01S15/00 , G01S15/89 , G10K11/34 , G10K11/35 , A61B8/08
CPC分类号： G01S7/52046 , A61B8/483 , G01S7/52085 , G01S15/8909 , G01S15/8915 , G01S15/8934 , G01S15/8945 , G01S15/8993 , G01S15/8997 , G10K11/346 , G10K11/352
摘要： Provided is a measuring apparatus, including: a moving mechanism for moving a probe in an elevation direction; a first delay and sum circuit for performing delay and sum of reception signals at individual positions along the elevation direction to output a first add signal; a signal extraction circuit for letting an output of the first delay and sum circuit to pass through delay circuits to output in parallel first add signals obtained at different positions; a second delay and sum circuit for performing delay and sum of the first add signals output from the signal extraction circuit to output a second add signal; and an image processing circuit for generating image data by using the second add signal. Accordingly, image resolution in the elevation direction may be improved with a simple structure without deteriorating an image obtaining speed in the measuring apparatus for obtaining an ultrasonic image.
摘要翻译：提供一种测量装置，包括：移动机构，用于沿高度方向移动探针; 第一延迟和和电路，用于在沿着高度方向的各个位置处执行接收信号的延迟和和，以输出第一加法信号; 信号提取电路，用于使第一延迟和和电路的输出通过延迟电路并行输出在不同位置获得的第一加法信号; 第二延迟和和电路，用于执行从信号提取电路输出的第一加法信号的延迟和和输出第二加法信号; 以及用于通过使用第二加法信号产生图像数据的图像处理电路。因此，通过简单的结构可以提高仰角方向上的图像分辨率，而不会在用于获得超声波图像的测量装置中使图像获得速度恶化。

10. 发明授权

US07531249B2 Magnetic recording medium and method of producing the same 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US07531249B2
公开(公告)日：2009-05-12
申请号：US11680838
申请日：2007-03-01
申请人： Katsuya Oikawa
发明人： Katsuya Oikawa
IPC分类号： G11B5/66
CPC分类号： G11B5/82 , G11B5/855
摘要： Provided is a magnetic recording medium having less noise and less recording degradation ascribed to “thermal fluctuation”. The magnetic recording medium has a magnetic recording film in which a magnetic region is dispersed in a non-magnetic region. In the magnetic recording medium, the magnetic region includes a hard magnetic layer which is a first magnetic portion made of a hard magnetic material with a coercive force and a soft magnetic layer which is a second magnetic portion made of a soft magnetic material with a coercive force smaller than that of the first magnetic portion, and the hard magnetic layer and the soft magnetic layer are laminated in a direction parallel to a film surface of the magnetic recording film.
摘要翻译：提供了具有由于“热波动”引起的噪声较小和记录劣化较少的磁记录介质。磁记录介质具有磁性区域分散在非磁性区域中的磁记录膜。在磁记录介质中，磁区包括作为由具有矫顽力的硬磁性材料制成的第一磁性部分的硬磁性层和由具有矫顽力的软磁性材料制成的第二磁性部分的软磁性层力小于第一磁性部分的力，并且硬磁层和软磁层在与磁记录膜的膜表面平行的方向上层压。

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