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公开(公告)号：US20200186145A1
公开(公告)日：2020-06-11
申请号：US16793970
申请日：2020-02-18
Inventor： Shuichi NAGAI , Shingo ENOMOTO , Noboru NEGORO , Yasufumi KAWAI , Songbaek CHOE , Osamu TABATA
IPC: H03K17/567 , H02M7/217
Abstract: A gate driving circuit that controls a switching element includes: a startup switch which is provided between a gate voltage source and an output terminal; a termination switch which is provided between the output terminal and an output ground terminal; a startup resistor provided between a gate and a source of the startup switch; and a termination resistor provided between a gate and a source of the termination switch. At least one of the startup resistor or the termination resistor is configured to adjust a resistance value.
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公开(公告)号：US20160226122A1
公开(公告)日：2016-08-04
申请号：US14784405
申请日：2014-04-03
Inventor： Shuichi NAGAI
IPC: H01P5/02
CPC classification number: H01P5/028 , H01F27/2804
Abstract: A resonant coupler includes, on the main surface of a first dielectric substrate: a first resonant line disposed in a circumferential shape and having proximate first and second ends; an input line into which a signal is inputted; and a first connecting line that grounds a first end of the first resonant line, and, similar to the first dielectric substrate, includes, on the main surface of a second dielectric substrate: a second resonant line; an output line; and a second connecting line. When viewed in a direction perpendicular to the main surface of the first dielectric substrate, the first resonant line and the second resonant line have substantially matching contours, and the first resonant line and the second resonant line have a combined shape that is symmetrical about a line.
Abstract translation: 谐振耦合器包括在第一电介质基板的主表面上：第一谐振线路，其设置成周向形状并且具有接近的第一端和第二端; 输入信号的输入线; 以及与第一谐振线路的第一端接地的第一连接线，并且与第一电介质基板类似，在第二电介质基板的主表面上包括第二谐振线; 输出线 和第二连接线。 当在垂直于第一电介质基板的主表面的方向上观察时，第一谐振线路和第二谐振线路具有基本匹配的轮廓线，并且第一谐振线路和第二谐振线路具有关于线路对称的组合形状 。
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Patent Agency Ranking
公开(公告)号：US20240302188A1
公开(公告)日：2024-09-12
申请号：US18547649
申请日：2022-02-22
Inventor： Shuichi NAGAI , Masaru SHIRAISHI
IPC: G01D5/347
CPC classification number: G01D5/3473
Abstract: Optical encoder includes a light source, a reflector, and a light receiver. Reflector has a plurality of reflection areas that include M-code areas and reflects a light from light source by one or more areas, corresponding to n-bits, of M-code areas. Light receiver receives a reflection light from reflector to perform a photoelectric conversion on reflection light. M-code areas has a first face corresponding to first code information and a second face corresponding to second code information and having an inclination structure different from that of first face. Light receiver has first and second light-receiving groups. First light-receiving group includes a plurality of first light-receiving elements receiving reflection light reflected from first face. Second light-receiving group includes a plurality of second light-receiving elements receiving reflection light reflected from second face. Positions of first light-receiving elements and positions of second light-receiving elements are shifted from each other in one direction.
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公开(公告)号：US20240200988A1
公开(公告)日：2024-06-20
申请号：US18554950
申请日：2022-04-12
Inventor： Masaru SHIRAISHI , Shuichi NAGAI , Junya ASO
IPC: G01D5/347
CPC classification number: G01D5/3473
Abstract: An encoder includes: a rotating plate; an irradiator that irradiates the rotating plate with light; and a light receiver that receives the light which has been emitted from the irradiator and traveled via the rotating plate. The rotating plate includes at least one curved surface, and the irradiator simultaneously irradiates each of a plurality of surfaces including the curved surface with light.
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公开(公告)号：US20230160725A1
公开(公告)日：2023-05-25
申请号：US18100387
申请日：2023-01-23
Inventor： Shuichi NAGAI
CPC classification number: G01D5/34776 , G01D5/34715 , G01D5/30 , G01D2218/00
Abstract: An encoder includes rotatable plate including first and second patterns, light emission unit, and light receiving unit. The first pattern includes first and second unit regions. The first unit regions guide the light from light emission unit to the light receiving unit. The second unit regions are configured not to guide light from the light emission unit to the light receiving unit. The second pattern includes first and second unit regions. The first unit regions of the second pattern guide light from light emission unit to the light receiving unit. The second unit regions of the second pattern are configured not to guide light from the light emission unit to the light receiving unit. The first and second unit regions of the first pattern are reverse to the first and second unit regions of the second pattern in a direction perpendicular to a rotation direction of the rotatable plate.
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公开(公告)号：US20160072167A1
公开(公告)日：2016-03-10
申请号：US14783617
申请日：2014-04-14
Inventor： Yasufumi KAWAI , Shuichi NAGAI , Daisuke UEDA
IPC: H01P5/04
CPC classification number: H01P1/201 , H01L23/49816 , H01L23/49822 , H01L23/49827 , H01L23/66 , H01L25/0655 , H01L2224/16 , H01L2224/48091 , H01L2224/48227 , H01L2224/49175 , H01L2924/15311 , H01L2924/19107 , H01P1/20345 , H01P1/20381 , H01P5/187 , H01P7/10 , H02J17/00 , H02J50/12 , H02J50/70 , H01L2924/00014 , H01L2924/00
Abstract: A high-frequency transmission device includes first and second resonators as ring-shaped wires each having an opening part at a part thereof, first and second input/output terminals each electrically connected to both resonators, a first ground shield formed on a plane different from planes on which both resonators are arranged, a second ground shield formed on a plane different from the planes on which both resonators and the first ground shield are arranged, and first and second ground wires each formed to surround peripheries of both resonators. The ground shields and the ground wires are respectively connected to each other. A dielectric wire is present between both ground wires, and the ground wires are not electrically connected to each other.
Abstract translation: 高频传输装置包括：第一谐振器和第二谐振器，其环形导线各自在其一部分具有开口部分，第一和第二输入/输出端子各自电连接到两个谐振器;第一接地屏蔽件，形成在不同于 在其上布置两个谐振器的平面，形成在不同于其上布置有两个谐振器和第一接地屏蔽的平面的平面上的第二接地屏蔽以及每个形成为围绕两个谐振器的周边的第一和第二接地线。 接地屏蔽和接地线分别相互连接。 在两个接地线之间存在电介质线，并且接地线彼此不电连接。
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公开(公告)号：US20160056150A1
公开(公告)日：2016-02-25
申请号：US14779104
申请日：2014-02-25
Inventor： Shuichi NAGAI , Daisuke UEDA , Tatsuo MORITA , Tetsuzo UEDA
CPC classification number: H01L27/0605 , H01L27/0207 , H01L27/0248 , H01L27/0629 , H01L27/0727 , H01L27/0738 , H01L29/2003 , H01L29/778 , H03K17/0822
Abstract: A power semiconductor element includes: a main transistor including a first gate electrode, a first drain electrode, and a first source electrode; a sensor transistor including a second gate electrode, a second drain electrode, and a second source electrode; and a gate switch transistor including a third gate electrode, and a third drain electrode, a third source electrode. The first gate electrode, the second gate electrode, and the third drain electrode are connected, the first drain electrode and the second drain electrode are connected, the first source electrode and the second source electrode are connected via a sensor resistor, the first source electrode and the third source electrode are connected, the second source electrode and the third gate electrode are connected via a switch resistor, and the main transistor, the sensor transistor, and the gate switch transistor are formed with a nitride semiconductor.
Abstract translation: 功率半导体元件包括：主晶体管，包括第一栅电极，第一漏电极和第一源电极; 传感器晶体管，包括第二栅极电极，第二漏极电极和第二源极电极; 以及栅极开关晶体管，其包括第三栅极电极和第三漏极电极，第三源极电极。 第一栅电极，第二栅极电极和第三漏电极连接，第一漏电极和第二漏极连接，第一源电极和第二源极通过传感器电阻连接，第一源电极 并且第三源电极连接，第二源电极和第三栅极经由开关电阻器连接，并且主晶体管，传感器晶体管和栅极开关晶体管由氮化物半导体形成。
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