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公开(公告)号：US11035893B2
公开(公告)日：2021-06-15
申请号：US16438509
申请日：2019-06-12
发明人： Tatsunari Koyama , Akira Nakatsu
摘要： The present invention intends to provide a liquid sensor device that achieves both the improvement of durability and the improvement of property determination accuracy. The liquid sensor device includes: an electrode pair 22 that is formed on a sensor board 2 and covered by an insulating protective film 201; a resistance measurement part 302 that supplies AC current to the electrode pair 22 to measure the resistance value of oil 4; a parasitic capacitance storage part 304 that holds the parasitic capacitance Cs of the electrode pair 22; and a property determination part 313 that, on the basis of the resistance value R1 and the parasitic capacitance Cs, determines the deterioration of the oil 4.
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公开(公告)号：US20160359238A1
公开(公告)日：2016-12-08
申请号：US15110945
申请日：2015-02-04
发明人： Takeshi Okunaga , Akira Nakatsu
CPC分类号： H01Q21/065 , H01P5/12 , H01Q5/50 , H01Q21/0075
摘要： [Object] To improve the directional characteristics of a planar antenna for a milliwave band as well as widening a bandwidth.[Means for Settlement] A feed line 13 has a main feed line 21, two sub-feed lines 22, and a distributor S2 adapted to branch the main feed line 21 into the two sub-feed lines 22. The distributor S2 includes: two outer edges 30L and 30R formed as curved lines connecting both side edges 21L and 21R of the main feed line 21 to first edges 221 of the sub-feed lines 22; and an inner edge 31 connecting second edges 222 of the sub-feed lines 22 to each other, in which the inner edge 31 is configured to include two inner curved lines 31L and 31R that are convex in mutual directions, and has a pointed shape that is concave toward the main feed line 21 side.
摘要翻译： [沉降装置]进料管线13具有主进料管线21，两个副进料管线22和分配器S2，其适于将主进料管线21分支到两个副进料管线22中。分配器S2包括：两个 形成为将主供给线21的两侧缘21L，21R与副供给线22的第一边缘221连接的曲线的外缘30L，30R， 以及将副供电线22的第二边缘222彼此连接的内边缘31，其中内边缘31被构造成包括相互凸向的两条内曲线31L和31R，并且具有尖的形状，其中， 朝向主给料线21侧凹。
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公开(公告)号：US20150255870A1
公开(公告)日：2015-09-10
申请号：US14640345
申请日：2015-03-06
IPC分类号： H01Q9/04
CPC分类号： H01Q9/045 , H01Q13/206 , H01Q21/0075 , H01Q21/065
摘要： In an antenna, an antenna element interval is reduced without depending on an interval between converters, to widen the range of a phase folding angle to widen a detection angle range. The antenna includes a first antenna element including a feeder line extending from a first converter and a plurality of radiating elements. A second antenna element includes a feeder line extending from a second converter aligned together with the first converter and a plurality of radiating elements. The first and second antenna elements respectively include, at partial line portions of the feeder lines which extend from the converters to closest radiating elements, bend portions which are bent in directions which the bend portions come close to each other. The partial line portions of the first and second antenna elements are disposed so as to be linearly symmetrical about a virtual line.
摘要翻译： 在天线中，天线元件间隔减小而不依赖于转换器之间的间隔，以扩大相位折叠角度的范围以扩大检测角度范围。 天线包括第一天线元件，其包括从第一转换器和多个辐射元件延伸的馈线。 第二天线元件包括从与第一转换器对准的第二转换器延伸的馈线和多个辐射元件。 第一和第二天线元件分别包括在从转换器延伸到最近的辐射元件的馈线的部分线部分处，弯曲部分在弯曲部分彼此靠近的方向上弯曲。 第一和第二天线元件的部分线部分被设置为围绕虚拟线线性对称。
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公开(公告)号：US11561167B2
公开(公告)日：2023-01-24
申请号：US17514092
申请日：2021-10-29
发明人： Akira Nakatsu , Kentaro Watanabe
摘要： Provided is a liquid sensor that can more accurately detect the state of a liquid. The liquid sensor includes a light emitting element, an optical waveguide, a light receiving element, and a detection circuit. The light receiving element is configured to receive light that was emitted by the light emitting element and passed through the optical waveguide. The detection circuit is configured to detect output of the light receiving element. The optical waveguide includes a first pillar portion that extends straight and a second pillar portion that extends straight. The second pillar portion is provided at a position opposing the first pillar portion. A space for liquid is formed between the first pillar portion and the second pillar portion. The first pillar portion includes a first end surface that faces the light emitting element, and a second end surface that is tilted relative to the first end surface and reflects light toward the second pillar portion. The second pillar portion includes a third end surface that faces the light receiving element, and a fourth end surface that is tilted relative to the third end surface and is configured to reflect light from the second end surface toward the light receiving element.
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公开(公告)号：US10827604B2
公开(公告)日：2020-11-03
申请号：US16459968
申请日：2019-07-02
发明人： Takeshi Okunaga , Akira Nakatsu , Kojiro Iwasa , Yusuke Natsuhara
摘要： A method for producing a high frequency circuit board includes forming an antenna pattern on an upper surface of the provisional substrate. The method includes performing hot-press in a state where a thermoplastic resin and a provisional conductor are stacked on the upper surface of the provisional substrate, to form a first dielectric layer portion covering the antenna pattern. The method includes removing the provisional conductor and shaving the first dielectric layer portion to form a cavity to house an electronic component. The method includes mounting the electronic component on the antenna pattern in the cavity. The method includes performing hot-press in a state where a thermosetting resin and a ground conductor are stacked at an opening side of the cavity in the first dielectric layer portion, to form a second dielectric layer portion to embed the electronic component in the cavity. The method includes removing the provisional substrate.
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公开(公告)号：US09972900B2
公开(公告)日：2018-05-15
申请号：US14836981
申请日：2015-08-27
CPC分类号： H01Q1/38 , H01P5/12 , H01Q13/206 , H01Q21/0075 , H01Q21/065
摘要： Provided is a distributor capable of reducing insertion loss while suppressing a ratio in power distribution among output lines from being changed. The distributor 4 is a distributor that is connected with an input line Lin and output lines Lo1 to Lo3 respectively formed on a dielectric substrate 10 as microstrip lines, and distributes to the output lines Lo1 to Lo3 high frequency power fed from a feeding point to a branching point through the input line Lin. In addition, the distributor 4 is configured to include a stub area 42 that is formed in the input line Lin, is separated from the branching point 41, and has a rectangular shape wider than line widths of a first area La and a second area Lb of the input line Lin. The stub area 42 is arranged in a position where the distance d1 between an edge on the feeding point side and lateral edges 3a on an input side of the output lines Lo1 and Lo3 substantially perpendicular to the input line Lin is substantially equal to (λg/4)×(2n+1) where λg is a guide wavelength and n is an integer.
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公开(公告)号：US20160079674A1
公开(公告)日：2016-03-17
申请号：US14836981
申请日：2015-08-27
CPC分类号： H01Q1/38 , H01P5/12 , H01Q13/206 , H01Q21/0075 , H01Q21/065
摘要： Provided is a distributor capable of reducing insertion loss while suppressing a ratio in power distribution among output lines from being changed. The distributor 4 is a distributor that is connected with an input line Lin and output lines Lo1 to Lo3 respectively formed on a dielectric substrate 10 as microstrip lines, and distributes to the output lines Lo1 to Lo3 high frequency power fed from a feeding point to a branching point through the input line Lin. In addition, the distributor 4 is configured to include a stub area 42 that is formed in the input line Lin, is separated from the branching point 41, and has a rectangular shape wider than line widths of a first area La and a second area Lb of the input line Lin. The stub area 42 is arranged in a position where the distance d1 between an edge on the feeding point side and lateral edges 3a on an input side of the output lines Lo1 and Lo3 substantially perpendicular to the input line Lin is substantially equal to (λg/4)×(2n+1) where λg is a guide wavelength and n is an integer.
摘要翻译： 提供一种能够在抑制输出线之间的配电比例变化的同时降低插入损耗的分配器。 分配器4是与输入线Lin和分别形成在电介质基板10上的输出线Lo1〜Lo3连接的分配器，作为微带线，并且分配到输出线Lo1〜Lo3，从馈电点向馈送点 分支点通过输入线Lin。 此外，分配器4被配置为包括形成在输入线Lin中的与分支点41分离的短截线区域42，并且具有比第一区域La和第二区域Lb的线宽宽的矩形形状 的输入行林。 短截线区域42布置在馈电点侧边缘与输入线路Lin的输出线Lo1和Lo3的输入侧上的横向边缘3a之间的距离d1基本上等于（λg/ 4）×（2n + 1）其中λg是导向波长，n是整数。
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公开(公告)号：US11525726B2
公开(公告)日：2022-12-13
申请号：US17178840
申请日：2021-02-18
发明人： Tatsunari Koyama , Akira Nakatsu
IPC分类号： G01F23/263 , G01N27/22
摘要： Provided is a liquid sensor capable of relatively accurately detecting the liquid level even if vibration or the like occurs. The liquid sensor is configured to detect a liquid level in a state in which at least a portion of the liquid sensor is immersed in liquid. This liquid sensor includes a substrate. The substrate is provided with a hole. An inner circumferential surface of the substrate is formed around the hole. A first electrode and a second electrode facing the first electrode are formed on the inner circumferential surface. The liquid sensor further includes a detection circuit. The detection circuit is configured to detect capacitance between the first and second electrodes.
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公开(公告)号：US10079436B2
公开(公告)日：2018-09-18
申请号：US15110945
申请日：2015-02-04
发明人： Takeshi Okunaga , Akira Nakatsu
CPC分类号： H01Q21/065 , H01P5/12 , H01Q5/50 , H01Q21/0075
摘要： [Object] To improve the directional characteristics of a planar antenna for a milliwave band as well as widening a bandwidth.[Means for Settlement] A feed line 13 has a main feed line 21, two sub-feed lines 22, and a distributor S2 adapted to branch the main feed line 21 into the two sub-feed lines 22. The distributor S2 includes: two outer edges 30L and 30R formed as curved lines connecting both side edges 21L and 21R of the main feed line 21 to first edges 221 of the sub-feed lines 22; and an inner edge 31 connecting second edges 222 of the sub-feed lines 22 to each other, in which the inner edge 31 is configured to include two inner curved lines 31L and 31R that are convex in mutual directions, and has a pointed shape that is concave toward the main feed line 21 side.
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公开(公告)号：US09705196B2
公开(公告)日：2017-07-11
申请号：US14640345
申请日：2015-03-06
CPC分类号： H01Q9/045 , H01Q13/206 , H01Q21/0075 , H01Q21/065
摘要： In an antenna, an antenna element interval is reduced without depending on an interval between converters, to widen the range of a phase folding angle to widen a detection angle range. The antenna includes a first antenna element including a feeder line extending from a first converter and a plurality of radiating elements. A second antenna element includes a feeder line extending from a second converter aligned together with the first converter and a plurality of radiating elements. The first and second antenna elements respectively include, at partial line portions of the feeder lines which extend from the converters to closest radiating elements, bend portions which are bent in directions which the bend portions come close to each other. The partial line portions of the first and second antenna elements are disposed so as to be linearly symmetrical about a virtual line.
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