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1. 发明申请

US20220155219A1 LIQUID SENSOR 有权
公开(公告)号：US20220155219A1
公开(公告)日：2022-05-19
申请号：US17514092
申请日：2021-10-29
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Akira NAKATSU , Kentaro WATANABE
IPC分类号： G01N21/31
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.

2. 发明公开

US20230175994A1 OIL STATE DETECTION APPARATUS 审中-公开
公开(公告)号：US20230175994A1
公开(公告)日：2023-06-08
申请号：US18075260
申请日：2022-12-05
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Akira NAKATSU , Kento NAKAGAWA , Kentaro WATANABE
IPC分类号： G01N27/02 , G01N27/74 , G01N27/22
CPC分类号： G01N27/023 , G01N27/74 , G01N27/221
摘要： An oil state detection apparatus detects the amount of degradation substances contained in oil. The oil state detection apparatus includes a first oscillation circuit including a coil 1 and a capacitor 2, and a first detection device. Either one of the coil 1 or the capacitor 2 is configured to be immersed in oil. The first detection device is configured to detect the oscillatory frequency of the oscillation circuit.

3. 发明申请

US20200260572A1 METHOD FOR PRODUCING HIGH FREQUENCY CIRCUIT BOARD, AND HIGH FREQUENCY CIRCUIT BOARD 审中-公开
公开(公告)号：US20200260572A1
公开(公告)日：2020-08-13
申请号：US16459968
申请日：2019-07-02
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Takeshi OKUNAGA , Akira NAKATSU , Kojiro IWASA , Yusuke NATSUHARA
IPC分类号： H05K1/02 , H01Q1/32 , H05K3/46 , H05K1/11
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.

4. 发明公开

US20240003949A1 RESISTANCE DETECTION SENSOR 审中-公开
公开(公告)号：US20240003949A1
公开(公告)日：2024-01-04
申请号：US18329314
申请日：2023-06-05
申请人： NIPPON PILLAR PACKING CO., LTD
发明人： Akira NAKATSU , Kentaro WATANABE
IPC分类号： G01R27/22 , G01N27/06
CPC分类号： G01R27/22 , G01N27/06
摘要： The resistance detection sensor is configured to detect the electrical resistance value of a liquid. This resistance detection sensor includes a pair of electrodes, a DC voltage application unit, an AC voltage application unit, and a control unit. The pair of electrodes are immersed in a liquid. The DC voltage application unit applies a DC voltage having a first polarity between the pair of electrodes. The AC voltage application unit applies an AC voltage between the pair of electrodes. The control unit calculates the electrical resistance value of the liquid, in a state where the DC voltage is applied between the pair of electrodes by the DC voltage application unit. The control unit controls the AC voltage application unit so as to apply an AC voltage starting from a second polarity opposite to the first polarity at a predetermined time interval between the pair of electrodes. The time period for which the AC voltage is applied between the pair of electrodes by the AC voltage application unit is not an integer multiple of the cycle of the AC voltage applied between the pair of electrodes.

5. 发明申请

US20200003813A1 Sensor Device 审中-公开
公开(公告)号：US20200003813A1
公开(公告)日：2020-01-02
申请号：US16438509
申请日：2019-06-12
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Tatsunari KOYAMA , Akira NAKATSU
IPC分类号： G01R27/08 , G01N27/22 , G01N33/28
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.

6. 发明申请

US20220155128A1 LIQUID SENSOR AND METHOD FOR MANUFACTURING OPTICAL WAVEGUIDE 有权
公开(公告)号：US20220155128A1
公开(公告)日：2022-05-19
申请号：US17514731
申请日：2021-10-29
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Akira NAKATSU , Kentaro WATANABE
IPC分类号： G01F23/26 , G01N27/22
摘要： Provided is a liquid sensor or the like that is relatively easy to manufacture. The liquid sensor includes a light emitting element, an optical waveguide, a light receiving element, and a detection circuit. The optical waveguide includes a first pillar portion, a first metal plate, a second pillar portion, and a second metal plate. The first metal plate is embedded in the first pillar portion. The second pillar portion is provided at a position opposing the first pillar portion. The second metal plate is embedded in the second 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. The first metal plate includes a first reflecting portion that is tilted relative to the first end surface and reflects light toward the second pillar portion. The second pillar portion includes a second end surface that faces the light receiving element. The second metal plate includes a second reflecting portion that is tilted relative to the second end surface and reflects the light from the first metal plate toward the light receiving element.

7. 发明申请

US20210255023A1 LIQUID SENSOR 有权
公开(公告)号：US20210255023A1
公开(公告)日：2021-08-19
申请号：US17178840
申请日：2021-02-18
申请人： NIPPON PILLAR PACKING CO., LTD.
发明人： Tatsunari KOYAMA , Akira NAKATSU
IPC分类号： G01F23/26 , 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.

8. 发明申请

US20140292606A1 ANTENNA DEVICE AND RADAR DEVICE 有权
标题翻译：天线设备和雷达设备
公开(公告)号：US20140292606A1
公开(公告)日：2014-10-02
申请号：US14133065
申请日：2013-12-18
申请人： NIPPON PILLAR PACKING CO., LTD. , FUJITSU TEN LIMITED
发明人： Eisuke HAYAKAWA , Takeshi OKUNAGA , Akira NAKATSU
IPC分类号： H01Q1/52
CPC分类号： H01Q1/523 , H01Q1/3233 , H01Q1/38 , H01Q13/206
摘要： An antenna device according to an embodiment includes a dielectric substrate, a housing, and an interference prevention unit. On the top surface side of the dielectric substrate, a plurality of antennas is formed, and on the bottom surface side, a ground is formed, each as a conductive thin film pattern, respectively. The housing is formed of a conductive material, and formed to have a shape configured to function as a waveguide, and the top surface side of the housing is bonded to the bottom surface side of the dielectric substrate. The interference prevention unit is formed between the neighboring antennas to include at least a groove provided on the top surface side of the housing and a slit provided on the ground in the portion corresponding to the groove.
摘要翻译：根据实施例的天线装置包括电介质基板，壳体和防干扰单元。在电介质基板的顶面侧形成有多个天线，在底面侧分别形成有作为导电薄膜图案的接地。壳体由导电材料形成，并且形成为具有被配置为用作波导的形状，并且壳体的顶表面侧接合到电介质基板的底表面侧。防干扰单元形成在相邻天线之间，至少包括设置在壳体的顶面侧的槽和设置在与槽对应的部分中的地面上的狭缝。

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