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公开(公告)号：US20200096855A1
公开(公告)日：2020-03-26
申请号：US16618884
申请日：2018-05-31
Applicant: TDK Corporation
Inventor： Tomohiko SHIBUYA
Abstract: A magnetically shielded room reducing pressure felt by a person inside includes an upper shielding body, a side periphery shielding body, and a lower shielding body, all of which define a magnetically shielded inner space. A magnifying lens is located in the upper shielding body. The magnifying lens can magnify and project an incident image from outside to a range of one inner side surface of the magnetically shielded room. so that the range should be 50% or more of the area of the one inner side surface. The range includes most of the area above a line of sight of a person in the magnetically shielded room. The magnifying lens is provided at a position closer to the one inner side surface as a projection target of the lens than the other inner side surface as a non-projection target facing the one inner side surface as the projection target.
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公开(公告)号：US20150180419A1
公开(公告)日：2015-06-25
申请号：US14571929
申请日：2014-12-16
Applicant: TDK CORPORATION
Inventor： Tomohiko SHIBUYA , Atsushi AJIOKA , Atsushi TSUMITA , Sadaharu YONEDA
CPC classification number: H03F3/193 , H03F3/195 , H03F3/211 , H03F3/245 , H03F2200/451 , H03F2203/21106 , H03F2203/21142
Abstract: There is provided a high-frequency amplifier including a divider, a plurality of amplifiers for amplifying a high-frequency signal distributed by the divider and outputting the amplified high-frequency signal, a combiner for combining amplified high-frequency signals, a base substrate, a conductor pattern that is connected to a ground end of each of the amplifiers, and a ground electrode. Each of the conductor patterns has a first conductive portion. A slot is disposed between the two conductor patterns connected to the corresponding adjacent amplifiers. Between the adjacent amplifiers, two vias are formed so that the slot is sandwiched between the vias. One of the two conductor patterns is connected to the ground electrode via one of the two vias, and the other one of the conductor patterns is connected to the ground electrode via the other one of the two vias.
Abstract translation: 提供了一种高频放大器，包括分频器，用于放大由分频器分配的高频信号并输出放大的高频信号的多个放大器，用于组合放大的高频信号的组合器，基底衬底， 连接到每个放大器的接地端的导体图案和接地电极。 每个导体图案具有第一导电部分。 在连接到相应的相邻放大器的两个导体图案之间设置槽。 在相邻的放大器之间，形成两个通孔，使得狭槽夹在通孔之间。 两个导体图案中的一个通过两个通孔中的一个连接到接地电极，另一个导体图案经由两个通孔中的另一个连接到接地电极。
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公开(公告)号：US20240329159A1
公开(公告)日：2024-10-03
申请号：US18613739
申请日：2024-03-22
Inventor： Tomohiko SHIBUYA , Yasushi Takemura , Suko Bagus Trisnanto
IPC: G01R33/00
CPC classification number: G01R33/0017 , G01R33/0011 , G01R33/0094
Abstract: Disclosed herein is a magnetic sensor that includes: a magnetosensitive element; a cancellation coil cancelling a component on the magnetosensitive element of an AC excitation magnetic field applied to a measurement target including a magnetic material; a receiving coil receiving a primary magnetic field generated from the magnetic material; and a transmitting coil connected to the receiving coil and applying a secondary magnetic field to the magnetosensitive element based on a detection current supplied from the receiving coil.
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公开(公告)号：US20140210556A1
公开(公告)日：2014-07-31
申请号：US14150219
申请日：2014-01-08
Applicant: TDK CORPORATION
Inventor： Tomohiko SHIBUYA , Atsushi AJIOKA , Sadaharu Yoneda , Atsushi TSUMITA
IPC: H03F3/193
CPC classification number: H03F3/193 , H03F1/0266 , H03F2200/408
Abstract: Since a high-frequency signal that is output from a high-frequency oscillator circuit section is detected in a detector circuit and a bias of a negative voltage is supplied from a bias circuit section to the high-frequency amplifier circuit section with a detection voltage that is detected, a negative power supply circuit such as a DC/DC converter or a peripheral circuit is not required, and since a negative bias voltage can be supplied to a high-frequency amplifier circuit, downsizing can be achieved with a low cost.
Abstract translation: 由于在检测器电路中检测到从高频振荡电路部分输出的高频信号，并且从偏置电路部分向高频放大器电路部分提供负电压的偏压，检测电压为 ，则不需要诸如DC / DC转换器或外围电路的负电源电路，并且由于可以向高频放大器电路提供负偏压，因此可以以低成本实现小型化。
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公开(公告)号：US20230258743A1
公开(公告)日：2023-08-17
申请号：US18009778
申请日：2021-05-27
Applicant: TDK Corporation
Inventor： Tomohiko SHIBUYA
CPC classification number: G01R33/0094 , G01R33/0011 , G01R33/091
Abstract: A magnetic sensor array includes a plurality of magnetic sensors. The magnetic sensor includes a sensor housing body housing the sensor chip and first and second connection parts formed on the sensor housing body. The first connection part formed on one of adjacent magnetic sensors and the second connection part formed on the other one thereof are axially supported on each other to achieve mutual connection between the plurality of magnetic sensors. Thus, it is possible to vary the relative angle between two adjacent magnetic sensors with the first and second connection parts as an axis. This allows the plurality of magnetic sensors to be pressed perpendicularly against even a curved surface of an object to be measured, and the pressed state can be easily maintained.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20160093318A1
公开(公告)日：2016-03-31
申请号：US14847716
申请日：2015-09-08
Applicant: TDK CORPORATION
Inventor： Tomohiko SHIBUYA , Atsushi AJIOKA , Sadaharu YONEDA , Atsushi TSUMITA
CPC classification number: G11B5/02 , G11B5/314 , G11B5/4853 , G11B2005/0024
Abstract: A magnetic head has a magnetic head slider that includes a recording element that generates a recording signal magnetic field, a microwave magnetic field generating element that generates a microwave magnetic field, a terminal electrode, and a first transmission line that interconnects the terminal electrode and the microwave magnetic field generating element. A second transmission line is connected to the terminal electrode, the second transmission line being used to transmit a microwave signal from the outside of the magnetic head slider to the magnetic head slider. A capacitor connected to the first transmission line is provided between the terminal electrode and the microwave magnetic field generating element. Accordingly, in the magnetic head, a microwave signal is efficiently propagated.
Abstract translation: 磁头具有磁头滑动器，其包括产生记录信号磁场的记录元件，产生微波磁场的微波磁场产生元件，端子电极和将端子电极和 微波磁场产生元件。 第二传输线连接到端子电极，第二传输线用于将微波信号从磁头滑块的外部传输到磁头滑块。 连接到第一传输线的电容器设置在端子电极和微波磁场产生元件之间。 因此，在磁头中，有效地传播微波信号。
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7.发明申请HIGH-FREQUENCY AMPLIFIER CIRCUIT, SEMICONDUCTOR DEVICE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE 有权高频放大器电路，半导体器件和磁记录和再现器件公开(公告)号：US20140312972A1
公开(公告)日：2014-10-23
申请号：US14250118
申请日：2014-04-10
Applicant: TDK Corporation
Inventor： Sadaharu YONEDA , Atsushi AJIOKA , Tomohiko SHIBUYA , Atsushi TSUMITA
CPC classification number: H03F1/083 , H03F3/19 , H03F3/26 , H03F3/45475 , H03F3/45928 , H03F2200/06 , H03F2200/405 , H03F2200/451 , H03F2200/537
Abstract: A high-frequency amplifier circuit includes a balanced-unbalanced converter converting a single-ended signal into differential signals. The output of a first amplifier amplifying the single-ended signal is connected to the signal terminal on the unbalanced side of the balanced-unbalanced converter. The input of a second amplifier amplifying one of the differential signals is connected to one signal terminal on the balanced side of the balanced-unbalanced converter. The input of a third amplifier amplifying another of the differential signals is connected to another signal terminal on the balanced side of the balanced-unbalanced converter. An impedance element is inserted between an element on the balanced side of the balanced-unbalanced converter and a ground.
Abstract translation: 高频放大器电路包括将单端信号转换成差分信号的平衡不平衡转换器。 放大单端信号的第一放大器的输出连接到平衡不平衡转换器的不平衡侧上的信号端子。 放大其中一个差分信号的第二放大器的输入连接到平衡不平衡转换器的平衡侧上的一个信号端。 放大另一个差分信号的第三放大器的输入连接到平衡不平衡转换器的平衡侧上的另一个信号端子。 阻抗元件插入在平衡不平衡转换器的平衡侧上的元件和地之间。
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公开(公告)号：US20230117248A1
公开(公告)日：2023-04-20
申请号：US17964826
申请日：2022-10-12
Applicant: TDK CORPORATION
Inventor： Tomohiko SHIBUYA , Yu HOTTA , Takato FUKUI
Abstract: Disclosed herein is a position detection marker that includes a magnetic field source that generates magnetism, an MRI marker that can be detected by a magnetic resonance imaging method, and a holding part that fixes a relative positional relation between the magnetic field source and the MRI marker.
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公开(公告)号：US20220057470A1
公开(公告)日：2022-02-24
申请号：US17413887
申请日：2020-01-09
Applicant: TDK Corporation , Kanazawa Institute of Technology
Inventor： Tomohiko SHIBUYA , Yoshiaki ADACHI
Abstract: A magnetic field calibration device is used to calibrate a magnetism measurement device having a plurality of magnetic sensors and includes a first holder having a first holding surface, a second holder having a second holding surface having a fixed relative positional relation with the first holding surface, and magnetism generating parts fixed to the first holding surface and the second holding surface. Thus, calibration can be completed with a single operation by assigning the first and second holding surfaces of the magnetic field calibration device respectively to the first and second measurement surfaces of the magnetism measurement device. In addition, since the relative positional relation between the first and second holding surfaces is fixed, measurement results obtained from the individual measurement surfaces match each other.
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公开(公告)号：US20190387647A1
公开(公告)日：2019-12-19
申请号：US16464020
申请日：2017-11-27
Applicant: TDK Corporation
Inventor： Tomohiko SHIBUYA
IPC: H05K9/00 , E04B1/92 , G01R33/421
Abstract: A magnetically shielded room includes an upper shielding body, a side peripheral shielding body and a lower shielding body, all of which define a magnetically shielded inner space. The magnetically shielded inner space is divided into first and second inner spaces by a partition member which is a magnetic shielding body. A door, which is a magnetic shielding body, is provided for commonly closing the first and second inner spaces.
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