公开(公告)号：US5442181A

公开(公告)日：1995-08-15

申请号：US218297

申请日：1994-03-28

申请人： Tsutomu Yamakawa ,  Keisei Shuto ,  Takuzou Takayama

发明人： Tsutomu Yamakawa ,  Keisei Shuto ,  Takuzou Takayama

IPC分类号： G01T1/164 ,  G01T1/202

CPC分类号： G01T1/1642

摘要： A radiation detector includes a plate-like monocrystal for converting a radiation ray radiated from an object to be examined to a visible ray, a glass plate provided on the monocrystal for transmitting the visible ray generated in the monocrystal and a plurality of photomultipliers arranged on the glass plate for converting the visible ray inputted through the glass plate from the monocrystal to an electrical signal.

摘要翻译： 放射线检测器包括用于将从被检测物体辐射的放射线转换成可见光的板状单晶体，设置在单晶上的玻璃板，用于透射在单晶中产生的可见光，以及多个光电倍增管， 玻璃板，用于将通过玻璃板输入的可见光从单晶转换成电信号。

公开(公告)号：US4639632A

公开(公告)日：1987-01-27

申请号：US789928

申请日：1985-10-22

申请人： Hozumi Nakata ,  Tsutomu Yamakawa

发明人： Hozumi Nakata ,  Tsutomu Yamakawa

IPC分类号： H03H9/05 ,  H03H9/10 ,  H05K3/34 ,  H01L41/08

CPC分类号： H03H9/1014 ,  H03H9/0514 ,  H05K3/3426

摘要： A piezoelectric resonator is arranged such that a pair of lead-in conductors extend through a flat hermetically sealed case obtained by bonding a pair of upper and lower halves, and are connected at projecting portions of the conductors to driving electrodes of a piezoelectric element. Electrical connections and mechanical bonding thus are provided by way of the projecting portions.

摘要翻译： 压电谐振器被布置成使得一对引入导体延伸穿过通过结合一对上半部和下半部而获得的平坦的密封壳体，并且在导体的突出部分处连接到压电元件的驱动电极。 通过突出部分提供电连接和机械接合。

公开(公告)号：US4529883A

公开(公告)日：1985-07-16

申请号：US414939

申请日：1982-09-03

申请人： Tsutomu Yamakawa ,  Hirokatsu Yoshizawa

发明人： Tsutomu Yamakawa ,  Hirokatsu Yoshizawa

IPC分类号： A61B6/00 ,  G01T1/164 ,  G01T1/20

CPC分类号： G01T1/1647

摘要： Multi-imaging apparatus for displaying isotope radiation distribution images derived from scintillation cameras, including a single processor including circuitry which enables a plurality of separate images taken respectively by scintillation cameras to be displayed or exposed on photographic film, and a display system including a cathode ray tube display device in combination with a photographic camera unit. Plural sets of X and Y-coordinate signals along with unblanking signals supplied from a plurality of the scintillation cameras are processed and the different images of the radioisotope distribution taken respectively by the different scintillation cameras are exposed on a single frame of an X-ray film.

摘要翻译： 用于显示从闪烁照相机得到的同位素辐射分布图像的多成像装置，包括单个处理器，其包括能够分别由闪烁照相机拍摄或暴露在照相胶片上的多个单独图像的电路，以及包括阴极射线 管显示装置与照相机单元组合。 处理多组X和Y坐标信号以及从多个闪烁照相机提供的非白化信号，并将分别由不同闪烁照相机拍摄的放射性同位素分布的不同图像曝光在X射线胶片的单个框架上 。

公开(公告)号：US09113799B2

公开(公告)日：2015-08-25

申请号：US13386838

申请日：2010-07-29

申请人： Akitoshi Katsumata ,  Koichi Ogawa ,  Tsutomu Yamakawa ,  Masahiro Tsujita ,  Tatsuya Nagano ,  Kazuhide Kitou

发明人： Akitoshi Katsumata ,  Koichi Ogawa ,  Tsutomu Yamakawa ,  Masahiro Tsujita ,  Tatsuya Nagano ,  Kazuhide Kitou

IPC分类号： A61B6/03 ,  A61B6/14 ,  A61B6/00

CPC分类号： A61B6/14 ,  A61B6/025 ,  A61B6/032 ,  A61B6/037 ,  A61B6/145 ,  A61B6/4021 ,  A61B6/4241 ,  A61B6/466 ,  A61B6/501 ,  A61B6/5205 ,  A61B6/5258

摘要： There is provided a panoramic imaging apparatus which serves as a radiation imaging apparatus. The panoramic imaging apparatus includes an X-ray tube radiating an X-ray as a radiation, a detector outputting digital-quantity frame data corresponding to an incident X-ray, and moving means moving the pair of X-ray tube and the detector relatively to an object. The apparatus further includes means for acquiring the frame data from the detector during movement of the X-ray tube and the detector, and means for optimally focusing a portion being imaged of the object using the acquired data and producing a three-dimensional optimally focused image in which the real size and shape of the portion being imaged are reflected.

摘要翻译： 提供了用作辐射成像装置的全景成像装置。 全景成像装置包括以X射线照射X射线作为辐射的X射线管，输出与入射X射线相对应的数字量数据的检测器，以及相对移动X射线管和检测器的移动单元 到一个对象。 该装置还包括用于在X射线管和检测器运动期间从检测器获取帧数据的装置，以及用于使用获取的数据最佳地聚焦被成像对象的部分并产生三维最佳聚焦图像的装置 其中正在成像的部分的实际尺寸和形状被反射。

公开(公告)号：US20140105370A1

公开(公告)日：2014-04-17

申请号：US14111945

申请日：2012-04-20

申请人： Tsutomu Yamakawa ,  Daisuke Hashimoto ,  Hideyuki Nagaoka ,  Tatsuya Nagano ,  Masahiro Tsujita

发明人： Tsutomu Yamakawa ,  Daisuke Hashimoto ,  Hideyuki Nagaoka ,  Tatsuya Nagano ,  Masahiro Tsujita

IPC分类号： A61B6/00

CPC分类号： A61B6/585 ,  A61B6/025 ,  A61B6/032 ,  A61B6/14 ,  A61B6/4233 ,  A61B6/4241 ,  A61B6/482 ,  G01T1/171 ,  G01T1/243

摘要： There is provided a calibration apparatus used for a photon counting type of radiation detector. In this apparatus, a radiation condition of a radiation is set such that particles of the radiation (X-rays) which are incident on a plurality of detection modules are piled up over each other at a probability which is equal to or less than a predetermined value. Under the setting of this radiation condition, detection sensitivities for the radiation are made uniform among the plurality of detection modules. Using this uniformed result, the detection sensitivities for the radiation are further made uniform every channel of each of the pixels formed by circuit groups including the plurality of detection modules, discrimination circuits and data calculation circuits and every discrimination circuit in each channel.

摘要翻译： 提供了一种用于光子计数类型的辐射检测器的校准装置。 在该装置中，放射线的放射状态被设定为使得入射到多个检测模块上的辐射（X射线）的粒子以等于或小于预定的概率堆叠在彼此上 值。 在该放射状态的设定下，在多个检测模块之间使辐射的检测灵敏度一致。 使用这种均匀的结果，每个通道包括多个检测模块，鉴别电路和数据计算电路以及每个通道中的每个鉴别电路，由每个由像素组成的像素的每个通道进一步使辐射的检测灵敏度均匀。

公开(公告)号：US20110043290A1

公开(公告)日：2011-02-24

申请号：US12926225

申请日：2010-11-03

申请人： Kazunori Hasegawa ,  Tsutomu Yamakawa

发明人： Kazunori Hasegawa ,  Tsutomu Yamakawa

IPC分类号： H03L7/00

CPC分类号： H03B5/362 ,  H03L1/022

摘要： Provided is a small-size and highly stable oscillator which can easily correct a frequency shift caused by a temperature fluctuation. The oscillator includes: an overtone crystal unit of three or higher dimension; an oscillation circuit which is connected to the crystal unit and outputs an oscillation frequency; a divider which divides the oscillation frequency and outputs the divided frequencies to a system device processing unit; a temperature sensor which detects a temperature around the crystal unit; and a memory which stores information for correcting a frequency shift of an oscillation frequency according to the temperature characteristic of the crystal unit (a coefficient of an equation for calculating a correction amount of a frequency shift or the frequency shift corresponding to the temperature) and provides information to be used for correcting the frequency shift to the system device processing unit.

摘要翻译： 提供了一种小型且高度稳定的振荡器，其可以容易地校正由温度波动引起的频移。 振荡器包括：三维或更高维度的泛音晶体单元; 振荡电路，连接到晶体单元并输出振荡频率; 分频器，其分频振荡频率并将分频频率输出到系统设备处理单元; 温度传感器，其检测晶体单元周围的温度; 以及存储器，其根据晶体单元的温度特性存储用于校正振荡频率的频移的信息（用于计算频移的校正量的方程的系数或与温度相对应的频移），并且提供 用于校正向系统设备处理单元的频移的信息。

公开(公告)号：US07768357B2

公开(公告)日：2010-08-03

申请号：US12343330

申请日：2008-12-23

申请人： Tsutomu Yamakawa

发明人： Tsutomu Yamakawa

IPC分类号： H03B1/00

CPC分类号： H03B5/32 ,  H03H9/0547

摘要： A surface-mount type crystal oscillator comprises: a crystal blank; an IC chip on which at least an oscillation circuit using the crystal blank is integrated; a container that accommodates the crystal blank and the IC chip; a pair of inspection terminals provided on an outer surface of the container and electrically connected to the crystal blank, and used for inspecting characteristics of the crystal blank; a communication terminal provided on the outer surface of the container; and first switching means for switchably and electrically connecting and disconnecting the inspection terminals to and from the crystal blank in accordance with a selecting signal supplied from the communication terminal.

摘要翻译： 表面贴装型晶体振荡器包括：晶体坯; 集成了至少使用了所述晶体坯的振荡电路的IC芯片; 容纳晶体空白和IC芯片的容器; 一对检查端子，设置在容器的外表面上并与晶体坯料电连接，用于检查晶体坯的特性; 设置在所述容器的外表面上的通信终端; 以及第一开关装置，用于根据从通信终端提供的选择信号，将检查端子可切换地和电气地连接和断开。

公开(公告)号：US07603100B2

公开(公告)日：2009-10-13

申请号：US11230756

申请日：2005-09-19

申请人： Kazuo Akaike ,  Makoto Okamoto ,  Tsutomu Yamakawa ,  Minoru Fukuda ,  Kozo Ono ,  Nobuo Tsukamoto

发明人： Kazuo Akaike ,  Makoto Okamoto ,  Tsutomu Yamakawa ,  Minoru Fukuda ,  Kozo Ono ,  Nobuo Tsukamoto

IPC分类号： H04B1/16

CPC分类号： H04B1/30

摘要： A high-frequency wireless communication device is provided that is capable of enlarging the range of communication by enhancing reception sensitivity while avoiding mutual interference. The device comprises an antenna filter and a direct detection type reception mechanism connected to the antenna filter. A crystal filter is used as the antenna filter. A crystal chip constituting the crystal filter and an IC chip into which the reception mechanism is integrated are housed in a single modular container to configure a high-frequency wireless module.

摘要翻译： 提供一种高频无线通信装置，其能够通过在避免相互干扰的同时提高接收灵敏度来扩大通信范围。 该装置包括天线滤波器和连接到天线滤波器的直接检测型接收机构。 使用晶体滤波器作为天线滤波器。 构成晶体滤波器的晶体芯片和集成有接收机构的IC芯片被容纳在单个模块化容器中，以配置高频无线模块。

公开(公告)号：US07138634B2

公开(公告)日：2006-11-21

申请号：US10735620

申请日：2003-12-16

申请人： Tsutomu Yamakawa

发明人： Tsutomu Yamakawa

IPC分类号： G01T1/24

CPC分类号： G01T1/249 ,  G01T1/2928

摘要： A radiation detector has a plurality of semiconductor cells arranged in a matrix. Each of the plurality of semiconductor cells detects radiation separately, and outputs a signal representing the energy of radiation separately. A selection circuit selects, among events wherein radiation is detected, specific events wherein radiation derived from radio-isotope injected to a subject is detected. In the first case wherein either one semiconductor cell outputs a signal, the energy of the signal is compared with a predetermined energy window. In the second case wherein two or more semiconductor cells output two or more signals substantially simultaneously, the total energy of the two or more signals is compared with the predetermined energy window. A position calculation circuit calculates, in the first case the incidence position of the radiation based on the positions of the semiconductor cells that output signals.

摘要翻译： 辐射检测器具有以矩阵形式布置的多个半导体单元。 多个半导体单元中的每一个分别检测辐射，并分别输出表示辐射能量的信号。 在检测到放射线的事件中，选择电路选择检测到从放射性同位素获得的辐射的特定事件。 在其中一个半导体单元输出信号的第一种情况下，将信号的能量与预定的能量窗口进行比较。 在其中两个或更多个半导体单元基本上同时输出两个或更多个信号的第二种情况下，将两个或更多个信号的总能量与预定能量窗口进行比较。 位置计算电路在第一种情况下，基于输出信号的半导体单元的位置来计算辐射的入射位置。

公开(公告)号：US20060118008A1

公开(公告)日：2006-06-08

申请号：US11340576

申请日：2006-01-27

申请人： Yoshiaki Sasage ,  Tsutomu Yamakawa

发明人： Yoshiaki Sasage ,  Tsutomu Yamakawa

IPC分类号： C04B24/00

CPC分类号： C04B24/383 ,  C04B28/04 ,  C04B2111/00129 ,  C04B2111/12 ,  C04B14/04 ,  C04B40/0032 ,  C04B40/0039

摘要： A nonionic water-soluble cellulose ether is characterized in that when 3 pbw of the nonionic water-soluble cellulose ether is added to a mixture of 90 pbw of cordierite, 10 pbw of ordinary Portland cement, and 33 pbw of water, immediately followed by kneading at 20° C. and 20 rpm, a maximum torque for kneading is reached within 180 seconds from the addition. It is suitable as an admixture for extrudable hydraulic compositions. The hydraulic composition to which the inventive admixture is added can be kneaded within a brief time into a uniform mass which is smoothly extrudable.