公开(公告)号：US4625520A

公开(公告)日：1986-12-02

申请号：US770577

申请日：1985-08-29

申请人： Yasuomi Yagi ,  Ken Takahashi ,  Takeo Nemoto

发明人： Yasuomi Yagi ,  Ken Takahashi ,  Takeo Nemoto

IPC分类号： G01R33/20 ,  A61B5/055 ,  A61B10/00 ,  F17C3/08 ,  G01R33/3815 ,  H01F6/00 ,  H01F6/04 ,  H01L39/00 ,  H01L39/04 ,  F17C1/00

CPC分类号： H01F6/04 ,  F17C3/085 ,  G01R33/3815 ,  F17C2203/0366 ,  F17C2203/0391 ,  F17C2205/0364 ,  F17C2221/017 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2227/04 ,  F17C2270/02 ,  F17C2270/0527 ,  Y10S220/901 ,  Y10S505/892

摘要： A superconducting device including a superconducting coil is suitable for use in a nuclear magnetic resonance computer tomography apparatus which requires a highly-uniform, highly-stable magnetostatic field. However, a serious problem arises when a large-sized superconducting coil is to be installed in a small room of a hospital or the like. A superconducting device capable of solving this problem is disclosed in which a very low temperature vessel having the form of a cylinder contains a superconducting coil in a state that the superconducting coil is immersed in a very low temperature coolant, and very low temperature coolant inlet port communicating the very low temperature vessel for introducing the very low temperature coolant into the very low temperature vessel is provided along a radial direction perpendicular to the horizontal center axis of the superconducting device and inclined at a desired angle with a vertical direction. The above superconducting device can be installed in a small room of a hospital, and makes easy a very low temperature coolant introducing operation.

摘要翻译： 包括超导线圈的超导装置适用于需要高度均匀，高稳定的静磁场的核磁共振计算机断层摄影装置。 然而，当将大型超导线圈安装在医院等的小房间中时，会出现严重的问题。 公开了一种能够解决这个问题的超导装置，其中具有圆筒形状的非常低温的容器包含超导线圈，该超导线圈处于超导线圈浸没在非常低温的冷却剂中，而且极低温度的冷却剂入口 将非常低的温度容器连通以将非常低温的冷却剂引入到极低温度容器中，沿着垂直于超导装置的水平中心轴线的径向方向设置并以垂直方向倾斜所需的角度。 上述超导装置可以安装在医院的小房间中，并且容易进行非常低温的冷却液引入操作。

公开(公告)号：US4502296A

公开(公告)日：1985-03-05

申请号：US593375

申请日：1984-03-26

申请人： Hisanao Ogata ,  Takeo Nemoto ,  Yoshinori Hakuraku ,  Yasuomi Yagi

发明人： Hisanao Ogata ,  Takeo Nemoto ,  Yoshinori Hakuraku ,  Yasuomi Yagi

IPC分类号： F17C3/08 ,  F17C13/08 ,  F25B19/00

CPC分类号： F17C13/087 ,  F17C3/085 ,  F17C2203/015 ,  F17C2203/0687 ,  F17C2221/017 ,  F17C2270/0536 ,  H01F6/04

摘要： A cryostat including a horizontal hollow space section of room temperature in which a liquid helium vessel is supported by a plurality of support structures each having a multiple cylinder of small thickness and a liquid nitrogen vessel is supported by a plurality of tension rods.

摘要翻译： 一种低温恒温器，其包括室温的水平中空空间部分，其中液氦容器由多个具有多个小圆筒的支撑结构和液氮容器支撑，多个支撑结构由多个张力杆支撑。

公开(公告)号：US4959964A

公开(公告)日：1990-10-02

申请号：US406235

申请日：1989-09-12

申请人： Norihide Saho ,  Takeo Nemoto ,  Hisanao Ogata ,  Mitsuru Saeki

发明人： Norihide Saho ,  Takeo Nemoto ,  Hisanao Ogata ,  Mitsuru Saeki

IPC分类号： F17C3/08 ,  G01R33/3815 ,  G01R33/385

CPC分类号： G01R33/3815 ,  F17C3/085 ,  G01R33/3854 ,  F17C2203/0687 ,  F17C2221/017 ,  F17C2270/0536

摘要： In a cryostat with a refrigerator containing a superconductive magnet, in which a material to be cooled and a low temperature end of the refrigerator for cooling the to-be-cooled material are disposed within a heat-insulating tank, the refrigerator is connected in unison with a part of a structural member other than the heat-insulating tank by a rigid coupling member. Accordingly, a heat portion of the refrigerator is tightly coupled to a magnetic shield member having a large mass and is connected to a vacuum container through bellows. The end portion of the refrigerator is formed in unison with heat shield sleeves and/or the heat shield tank through heat-conductive material having elasticity. Also, in order to prevent the leakage of the sound or noise from the heat portion, a sound-insulating cover is provided also for passages connecting to the head portion and is fixed to the magnetic shield member.

公开(公告)号：US4587399A

公开(公告)日：1986-05-06

申请号：US683499

申请日：1984-12-19

申请人： Kazuya Higeta ,  Kazumasa Fujioka ,  Takeo Nemoto ,  Takahiro Daikoku ,  Isao Nakajima

发明人： Kazuya Higeta ,  Kazumasa Fujioka ,  Takeo Nemoto ,  Takahiro Daikoku ,  Isao Nakajima

IPC分类号： B41J2/335 ,  B41J2/345 ,  G01D15/10

CPC分类号： B41J2/345

摘要： A thermal head is provided with a heat accumulating member disposed on a substrate, a plurality of heating resistors juxtaposed on the heat accumulating member in a manner to be spaced from each other, electrodes for supplying electric power to the heating resistors, and a protective member for preventing oxidation and wear of the heating resistors and the electrodes, these constituents being formed as layers. When the electric power is supplied to the electrodes, heat is generated by a heating portion of the heating resistor corresponding to the electrodes, and it is transmitted to a head surface via a thermally conductive member disposed in a printing dot portion of the protective member. The heat from the printing dot portion is used for effecting printing on a medium to-be-recorded through a thermosensitive sheet which lies in contact with the head surface.

摘要翻译： 热敏头设置有设置在基板上的蓄热构件，以与彼此间隔开的方式并置在蓄热构件上的多个加热电阻器，用于向加热电阻器供电的电极和保护构件 为了防止加热电阻器和电极的氧化和磨损，这些成分被形成为层。 当向电极提供电力时，由对应于电极的加热电阻器的加热部分产生热量，并且通过设置在保护部件的印刷点部分中的导热部件将其传递到头部表面。 来自打印点部分的热量用于通过与头表面接触的热敏片在要记录的介质上进行印刷。

公开(公告)号：US07323963B2

公开(公告)日：2008-01-29

申请号：US11476700

申请日：2006-06-29

申请人： Takeo Nemoto ,  Ryuya Ando ,  Hiroyuki Watanabe

发明人： Takeo Nemoto ,  Ryuya Ando ,  Hiroyuki Watanabe

IPC分类号： H01F7/00

CPC分类号： G01R33/3815 ,  G01R33/421

摘要： An object of the present invention is to provide a MRI superconductive magnet enables sharp images representing patients' health states to be produced.[Means for Achieving the Object]A MRI superconductive magnet having a superconductive coil, a liquid vessel of liquid helium used to cool the superconductive coil, a heat shield to accommodate the liquid vessel therein, a vacuum chamber to accommodate the heat shield therein, a load supporting body for supporting the superconductive coil from the vacuum chamber and securing the superconductive coil, a second cold part of a multi-stage refrigerator for cooling a heat exchanger to condense evaporated helium gas, and a first cold part of the multi-stage refrigerator for cooling the heat shield, wherein a magnetic shield is provided from the first cold part of the multi-stage refrigerator to an outer periphery of the second cold part of the multi-stage refrigerator.

摘要翻译： 本发明的目的是提供一种MRI超导磁体，其能够产生表示患者健康状态的清晰图像。 实现目标的手段具有超导线圈的MRI超导磁体，用于冷却超导线圈的液氦液体容器，用于容纳液体容器的隔热罩，容纳其中的隔热罩的真空室， 用于从真空室支撑超导线圈并固定超导线圈的负载支撑体，用于冷却热交换器以冷凝蒸发的氦气的多级制冷器的第二冷部，以及多级制冷器的第一冷部 用于冷却隔热罩，其中从多级制冷机的第一冷部向多级制冷机的第二冷部的外周提供磁屏蔽。

公开(公告)号：US5083445A

公开(公告)日：1992-01-28

申请号：US466633

申请日：1990-01-17

申请人： Norihide Saho ,  Taisei Uede ,  Yoichi Ono ,  Hisanao Ogata ,  Takeo Nemoto

发明人： Norihide Saho ,  Taisei Uede ,  Yoichi Ono ,  Hisanao Ogata ,  Takeo Nemoto

IPC分类号： B01D8/00 ,  F04B37/08

CPC分类号： F04B37/08 ,  B01D8/00 ,  Y10S417/901

摘要： A cryopump for effecting a cooling operation by a freezing medium such as liquid helium. A plurality of radiation-heat shield plates for protecting cryopanels against an external heat radiation are provided in opposed relation to a gas inlet of the cryopump. Particularly, a plurality of groups of such radiation-heat shield plates are provided in such a manner that the radiation-heat shield plates of each group are arranged in a multi-stage manner in registry with one another in the direction of the depth of the cryopump and are disposed in parallel relation to one another. Each of the cryopanels is disposed adjacent to a rear surface of respective radiation-heat shield plates facing away from the gas inlet. With this construction, the gas molecules reflected by those radiation-heat shield plates and by a rear wall of the cryopump, are less liable to reach the gas inlet, and tend to be condensed at an increased rate on those cryopanels.

公开(公告)号：US20070001792A1

公开(公告)日：2007-01-04

申请号：US11476700

申请日：2006-06-29

申请人： Takeo Nemoto ,  Ryuya Ando ,  Hiroyuki Watanabe

发明人： Takeo Nemoto ,  Ryuya Ando ,  Hiroyuki Watanabe

IPC分类号： H01F6/00

CPC分类号： G01R33/3815 ,  G01R33/421

摘要： [Object]An object of the present invention is to provide a MRI superconductive magnet enables sharp images representing patients' health states to be produced. [Means for Achieving the Object]A MRI superconductive magnet having a superconductive coil, a liquid vessel of liquid helium used to cool the superconductive coil, a heat shield to accommodate the liquid vessel therein, a vacuum chamber to accommodate the heat shield therein, a load supporting body for supporting the superconductive coil from the vacuum chamber and securing the superconductive coil, a second cold part of a multi-stage refrigerator for cooling a heat exchanger to condense evaporated helium gas, and a first cold part of the multi-stage refrigerator for cooling the heat shield, wherein a magnetic shield is provided from the first cold part of the multi-stage refrigerator to an outer periphery of the second cold part of the multi-stage refrigerator.

摘要翻译： 本发明的目的是提供一种MRI超导磁体，其能够产生表示患者健康状态的清晰图像。 实现目标的手段具有超导线圈的MRI超导磁体，用于冷却超导线圈的液氦液体容器，用于容纳液体容器的隔热罩，容纳其中的隔热罩的真空室， 用于从真空室支撑超导线圈并固定超导线圈的负载支撑体，用于冷却热交换器以冷凝蒸发的氦气的多级制冷器的第二冷部，以及多级制冷器的第一冷部 用于冷却隔热罩，其中从多级制冷机的第一冷部向多级制冷机的第二冷部的外周提供磁屏蔽。

公开(公告)号：US5084676A

公开(公告)日：1992-01-28

申请号：US454262

申请日：1989-12-21

申请人： Norihide Saho ,  Shinji Yamamoto ,  Tuyosi Shudo ,  Masayuki Otsuka ,  Tohsuke Hirata ,  Katsuaki Kikuchi ,  Shinichi Shimode ,  Takeo Nemoto

发明人： Norihide Saho ,  Shinji Yamamoto ,  Tuyosi Shudo ,  Masayuki Otsuka ,  Tohsuke Hirata ,  Katsuaki Kikuchi ,  Shinichi Shimode ,  Takeo Nemoto

IPC分类号： G01R33/385

CPC分类号： G01R33/3854 ,  G01R33/385

摘要： A nuclear magnetic resonance apparatus in accordance with the present invention includes ferro-magnetic field generation means and gradient field generation means and fixes the gradient field generation means at a predetermined position inside a cylindrical space by a support member. An elastic member is interposed between the support member and the gradient field generation means, and means for improving rigidity of the gradient field generation means, such as another support member and a fastening jig of the gradient field generation means, is disposed and fixed to the elastic member described above. In the manner image quality can be improved and noise can be reduced.

摘要翻译： 根据本发明的核磁共振装置包括铁磁场产生装置和梯度场产生装置，并且通过支撑构件将梯度场产生装置固定在圆柱形空间内的预定位置处。 弹性构件插入在支撑构件和梯度场产生装置之间，并且用于提高诸如梯度场产生装置的另一支撑构件和紧固夹具的梯度场产生装置的刚度的装置被固定到 弹性构件。 可以提高图像质量，降低噪音。

公开(公告)号：US4986077A

公开(公告)日：1991-01-22

申请号：US540790

申请日：1990-06-20

申请人： Norihide Saho ,  Takeo Nemoto ,  Yoshihide Shizuoka

发明人： Norihide Saho ,  Takeo Nemoto ,  Yoshihide Shizuoka

IPC分类号： H01L39/04 ,  F02G1/044 ,  F17C13/00 ,  F25D19/00 ,  G01R33/3815 ,  H01F6/04

CPC分类号： F25D19/006 ,  F02G1/0445 ,  G01R33/3815 ,  F02G2250/18 ,  H01F6/04

摘要： A cryostat comprises a vacuum vessel, a partition wall for air-tightly separating the vacuum vessel into a first vacuum chamber and a second vacuum chamber, thermal shield tubes encapsulated within the first vacuum chamber, a cooler encapsulated within the thermal shield for containing therein a body to be cooled and cryogen for cooling the body to be cooled, a cryo-cooler disposed outside of the vacuum vessel, which has a cooling portion disposed within the second vacuum chamber, a heat transfer passage along which heat is transferred from the thermal shield tubes to the cooling portion of the cryo-cooler through a part of the partition wall, at least two openings provided in the second vacuum chamber, through which the second vacuum chamber is capable of being opened to atmosphere, and covers each detachably mounted to the respective openings for maintaining the second vacuum chamber at a vacuum condition, on which covers the cryo-cooler is mounted.

摘要翻译： 低温恒温器包括真空容器，用于将真空容器气密分离成第一真空室和第二真空室的分隔壁，封装在第一真空室内的热屏蔽管，封装在热屏蔽内的冷却器， 被冷却的身体和用于冷却要冷却的身体的冷冻剂，设置在真空容器外部的冷冻冷却器，其具有设置在第二真空室内的冷却部分，热传递通道，热量从热屏蔽 管通过分隔壁的一部分到冷冻机的冷却部分，设置在第二真空室中的至少两个开口，第二真空室通过该开口能够打开到大气，并且覆盖每个可拆卸地安装到 用于将第二真空室保持在其上安装有冷冻冷却器的真空条件下的各个开口。

公开(公告)号：US06967480B2

公开(公告)日：2005-11-22

申请号：US10855373

申请日：2004-05-28

申请人： Takeo Nemoto ,  Hiroyuki Watanabe

发明人： Takeo Nemoto ,  Hiroyuki Watanabe

IPC分类号： H01L39/04 ,  G01R33/38 ,  G01R33/3815 ,  H01F6/00 ,  H01F6/04 ,  G01V3/00

CPC分类号： G01R33/3806 ,  G01R33/3815

摘要： The invention utilizes a characteristic of superconducting coils that they have high thermal conductivity in a direction of winding. A part of the superconducting coils is thermally connected with liquid helium through thermal anchors so that the part of the superconducting coils can be cooled to the liquid helium temperature. This cooling structure maintains thermal stability of a superconducting MRI magnet even in a condition that a refrigerator stops for a certain period of time, and reduces a manufacturing cost of the superconducting magnet.