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1
US2019035520A1
Publication/Patent Number: US2019035520A1
Publication date: 2019-01-31
Application number: 16/072,318
Filing date: 2017-01-23
Inventor: Hiroshima, Yasushi  
Abstract: Provided is a thin-film chip resistor including an insulating substrate; a thin-film resistive element formed on the substrate; a pair of electrodes connected to the thin-film resistive element; and a protective film covering at least the thin-film resistive element between the pair of electrodes, in which the protective film includes a first protective film and a second protective film, the first protective film containing silicon nitride in contact with the thin-film resistive element, and the second protective film containing silicon oxide in contact with the first protective film. Provided is a thin-film chip resistor including an insulating substrate; a thin-film resistive element formed on the substrate; a pair of electrodes connected to the thin-film resistive element; and a protective film covering at least the thin-film resistive element between the ...more ...less
2
US2019295749A1
Publication/Patent Number: US2019295749A1
Publication date: 2019-09-26
Application number: 16/302,773
Filing date: 2017-05-08
Inventor: Endo, Tamotsu  
Abstract: A shunt resistor including a first terminal and a second terminal, each of the first terminal and the second terminal being made of a conductive metallic material and having a first plane, a second plane, and an outer periphery as side faces thereof. The first planes of the first terminal and the second terminal are opposite each other, and a resistive element is connected to the first planes so as to connect the first terminal and the second terminal. The joint area between the resistive element and each first plane is smaller than the area of the first plane. Each of the first terminal and the second terminal has formed therein a hole portion that penetrates therethrough from the first plane to the second plane. A shunt resistor including a first terminal and a second terminal, each of the first terminal and the second terminal being made of a conductive metallic material and having a first plane, a second plane, and an outer periphery as side faces thereof. The first planes of the ...more ...less
3
US10222248B2
Publication/Patent Number: US10222248B2
Publication date: 2019-03-05
Application number: 15/784,724
Filing date: 2017-10-16
Abstract: Internal electrodes, a protective film, and protective films covering the top parts of internal electrode sides of lead wires are formed on a top surface of a substrate of a temperature sensor element, thereby making the overall shape a quadrangular prism and the transverse cross-section nearly a square even at any portion in the axial direction. A heating part of the temperature sensor element is provided near the center along the length, the height, and the width of the element, thereby preventing deviation of heat generation and stabilizing heat release to the lead wires. This allows the temperature sensor element to suppress fluctuation in detected temperatures due to mounting angle. Internal electrodes, a protective film, and protective films covering the top parts of internal electrode sides of lead wires are formed on a top surface of a substrate of a temperature sensor element, thereby making the overall shape a quadrangular prism and the transverse ...more ...less
4
US10256014B2
Publication/Patent Number: US10256014B2
Publication date: 2019-04-09
Application number: 15/529,235
Filing date: 2015-11-16
Abstract: To provide a wire-wound resistor provided with high reliability and that retains the basic functionality of the wire-wound resistor, and a method for manufacturing the same. A wire-wound resistor in which a resistor wire is wound onto an external periphery of a core (11) obtained by bundling fibrous insulators, and a connection terminal (13) is attached to both ends of the core (11) and connected to the resistor wire (12a), wherein the core (11) is impregnated with a binder in the portion (11a) in the vicinity of the external periphery. The binder (1) is preferably not included in a center portion (11b) of the core (11). To provide a wire-wound resistor provided with high reliability and that retains the basic functionality of the wire-wound resistor, and a method for manufacturing the same. A wire-wound resistor in which a resistor wire is wound onto an external periphery of a core (11) ...more ...less
5
US2019096549A1
Publication/Patent Number: US2019096549A1
Publication date: 2019-03-28
Application number: 16/083,088
Filing date: 2017-02-20
Abstract: A power resistor has paired harness electric wires that have one end parts connected to a resistor substrate, and other end parts pass through an exterior material made of insulating resin and extend outward. Crimp terminals, which are means for reinforcing affinity between the coating material of the harness electric wires and the insulating resin, i.e., the exterior material and for maintaining adhesion, are formed on predetermined portions of the harness electric wires. As a result, a short and small power resistor suitable for an in-vehicle environment is provided. A power resistor has paired harness electric wires that have one end parts connected to a resistor substrate, and other end parts pass through an exterior material made of insulating resin and extend outward. Crimp terminals, which are means for reinforcing affinity between the ...more ...less
6
US2019198203A1
Publication/Patent Number: US2019198203A1
Publication date: 2019-06-27
Application number: 16/311,858
Filing date: 2017-06-02
Abstract: Provided is a surface-mountable thin film resistor network, which includes a chip, on which a thin film resistor network integrated array is formed, and a molded resin package, which encapsulate the chip. The surface-mountable thin film resistor network is provided with a chip (13) on which a thin film resistor integrated array has been formed; an island (12) on which the chip is fixed; a plurality of lead terminals (14) extending outward around periphery of the island; wires (15) connecting electrodes of resistors mounted on the chip to the lead terminals; and a molded resin package (20) that encapsulate a portion, which includes the wires; wherein a hanging lead (18) extending from the island is cut at an end surface of the molded resin package, and an electrical insulation (21) is applied to the cut section of the hanging lead. Provided is a surface-mountable thin film resistor network, which includes a chip, on which a thin film resistor network integrated array is formed, and a molded resin package, which encapsulate the chip. The surface-mountable thin film resistor network is provided with a chip ...more ...less
7
US2019162757A1
Publication/Patent Number: US2019162757A1
Publication date: 2019-05-30
Application number: 16/313,366
Filing date: 2017-05-25
Abstract: Provided is a current measuring device for measuring current, including a conductor adapted to pass current therethrough, at least a pair of voltage sensing terminals arranged apart from each other on the conductor in the current flowing direction, and a substrate to which the voltage sensing terminals are connected. The substrate is long in the current flowing direction, and connection portion of the substrate that are connected to the voltage sensing terminals are arranged closer to one end side of the substrate in the lengthwise direction. Provided is a current measuring device for measuring current, including a conductor adapted to pass current therethrough, at least a pair of voltage sensing terminals arranged apart from each other on the conductor in the current flowing direction, and a substrate to which the ...more ...less
8
US2019227104A1
Publication/Patent Number: US2019227104A1
Publication date: 2019-07-25
Application number: 16/313,381
Filing date: 2017-05-25
Abstract: A shunt resistor mounting structure comprising: a resistor including a pair of terminal portions and adapted to perform current sensing; and a mounting board. The mounting board includes: a mounting portion including a pair of a first land and a second land to which the pair of terminal portions are respectively connected, and which allow a current to be measured to flow through the resistor; a substrate having the pair of lands formed thereon; a first voltage terminal formed on the substrate and including a line pattern led out from the first land; and a second voltage terminal including a wire connected to the terminal portion corresponding to the second land. A shunt resistor mounting structure comprising: a resistor including a pair of terminal portions and adapted to perform current sensing; and a mounting board. The mounting board includes: a mounting portion including a pair of a first land and a second land to which the pair of ...more ...less
9
US2019066886A1
Publication/Patent Number: US2019066886A1
Publication date: 2019-02-28
Application number: 16/083,004
Filing date: 2017-02-20
Abstract: A resistor has a structure including a resistor substrate that has paired electrodes and a resistive element formed on an insulating substrate, an insulating exterior material that covers at least the upper and the side surface of the resistor substrate, and harness electric wires that have one end parts connected to the respective electrodes, pass through the exterior material, and extend outside. The paired electrodes are formed on areas other than the end parts of the insulating substrate, and junctions of the end parts of the harness electric wires and the paired electrodes are at positions where creepage distance of insulation from the junctions to the bottom ends of the insulating substrate is a predetermined distance or longer. Such structure provides the resistor having a secured creepage distance of insulation between the conductor parts of the resistor and the metal case in which the resistor is installed. A resistor has a structure including a resistor substrate that has paired electrodes and a resistive element formed on an insulating substrate, an insulating exterior material that covers at least the upper and the side surface of the resistor substrate, and harness electric ...more ...less
10
US2019172614A1
Publication/Patent Number: US2019172614A1
Publication date: 2019-06-06
Application number: 16/323,151
Filing date: 2017-06-23
Abstract: A single or multiple cutters are pressed against end surfaces of a resistive element so as to form a plurality of notches in rims of the end surfaces. At this time, notches are formed such that notch depth at the end surfaces of the resistive element toward the axis center is smaller than notch length from the end surfaces of the resistive element to the axis. This allows easy cutting and removal of the resistance wire at the resistive element ends of a coil resistor, etc., and prevention of fraying of a wound wire at the resistive element ends. A single or multiple cutters are pressed against end surfaces of a resistive element so as to form a plurality of notches in rims of the end surfaces. At this time, notches are formed such that notch depth at the end surfaces of the resistive element toward the axis center is ...more ...less
11
US10192658B2
Publication/Patent Number: US10192658B2
Publication date: 2019-01-29
Application number: 15/562,046
Filing date: 2016-03-08
Abstract: In order to provide a chip resistor which has wide and flat terminal electrodes in its front surface and which has high connection reliability between front electrodes and the terminal electrodes, a chip resistor according to the present invention includes: an insulating substrate 1 shaped like a cuboid; a pair of front electrodes 2 provided on lengthwise opposite edge portions of a front surface of the insulating substrate 1; a resistor body 3 provided between the front electrodes 2; an insulating protection layer 4 covering entire surfaces of the front electrodes 2 and the resistor body 3; and a pair of terminal electrodes 5 provided on lengthwise opposite end surfaces of the insulating substrate 1. The chip resistor is configured such that the front electrodes 2 sandwiched between the insulating substrate 1 and the protection layer 4 are exposed from widthwise end surfaces and the lengthwise end surfaces of the insulating substrate 1, and the terminal electrodes 5 wrap around the widthwise opposite end surfaces of the insulating substrate 1 to be thereby connected to the exposed portions of the front electrodes 2. In order to provide a chip resistor which has wide and flat terminal electrodes in its front surface and which has high connection reliability between front electrodes and the terminal electrodes, a chip resistor according to the present invention includes: an insulating ...more ...less
12
US2019234773A1
Publication/Patent Number: US2019234773A1
Publication date: 2019-08-01
Application number: 16/337,722
Filing date: 2017-08-15
Inventor: Ikeno, Tomokazu  
Abstract: To provide an image display device configured to more faithfully display a projection image on a region where a physical quantity change has occurred. An image display device of the present invention includes a flow rate sensor and a screen on which an image from a projector is projected, and a control is performed such that the image is projected on the screen so as to include a position of the flow rate sensor that has detected the physical quantity change, and the image changes corresponding to a measured value change of the flow rate sensor. Preferably, a plurality of the physical quantity detection units are disposed, and the control is performed such that the image changes corresponding to the measured value changes in the respective physical quantity detection units. To provide an image display device configured to more faithfully display a projection image on a region where a physical quantity change has occurred. An image display device of the present invention includes a flow rate sensor and a screen on which an image from a projector is ...more ...less
13
US2019170556A1
Publication/Patent Number: US2019170556A1
Publication date: 2019-06-06
Application number: 16/095,836
Filing date: 2017-02-27
Inventor: Ikeno, Tomokazu  
Abstract: To provide a flow sensor having improved responsiveness compared to the prior art, the flow sensor of the present invention includes an insulation board, a flow-rate detection resistance element, and a temperature compensation resistance element. Each of the flow-rate detection resistance element and the temperature compensation resistance element is arranged on the insulation board such that a terminal temperature of the temperature compensation resistance element approaches a terminal temperature of the flow-rate detection resistance element. Accordingly, responsiveness can be improved. To provide a flow sensor having improved responsiveness compared to the prior art, the flow sensor of the present invention includes an insulation board, a flow-rate detection resistance element, and a temperature compensation resistance element. Each of the flow-rate detection ...more ...less
14
US10446295B2
Publication/Patent Number: US10446295B2
Publication date: 2019-10-15
Application number: 16/072,318
Filing date: 2017-01-23
Inventor: Hiroshima, Yasushi  
Abstract: Provided is a thin-film chip resistor including an insulating substrate; a thin-film resistive element formed on the substrate; a pair of electrodes connected to the thin-film resistive element; and a protective film covering at least the thin-film resistive element between the pair of electrodes, in which the protective film includes a first protective film and a second protective film, the first protective film containing silicon nitride in contact with the thin-film resistive element, and the second protective film containing silicon oxide in contact with the first protective film. Provided is a thin-film chip resistor including an insulating substrate; a thin-film resistive element formed on the substrate; a pair of electrodes connected to the thin-film resistive element; and a protective film covering at least the thin-film resistive element between the ...more ...less
15
US10446297B2
Publication/Patent Number: US10446297B2
Publication date: 2019-10-15
Application number: 16/083,088
Filing date: 2017-02-20
Abstract: A power resistor has paired harness electric wires that have one end parts connected to a resistor substrate, and other end parts pass through an exterior material made of insulating resin and extend outward. Crimp terminals, which are means for reinforcing affinity between the coating material of the harness electric wires and the insulating resin, i.e., the exterior material and for maintaining adhesion, are formed on predetermined portions of the harness electric wires. As a result, a short and small power resistor suitable for an in-vehicle environment is provided. A power resistor has paired harness electric wires that have one end parts connected to a resistor substrate, and other end parts pass through an exterior material made of insulating resin and extend outward. Crimp terminals, which are means for reinforcing affinity between the ...more ...less
16
US10276285B2
Publication/Patent Number: US10276285B2
Publication date: 2019-04-30
Application number: 15/764,570
Filing date: 2016-09-26
Inventor: Matsumoto, Kentaro  
Abstract: Provided is a chip resistor including: a rectangular parallelepiped insulating substrate which is made of ceramics; a pair of front electrodes which are provided on lengthwise opposite end portions in a front surface of the insulating substrate; a resistive element which is provided between and connected to the two front electrodes; a protective layer which is made of a resin and which entirely covers the front surface of the insulating substrate including the two front electrodes and the resistive element; and a pair of cap-shaped end-surface electrodes which are provided on the lengthwise opposite end portions of the insulating substrate to establish electrical continuity to the front electrodes respectively; wherein: a chip element assembly in which the insulating substrate and the protective layer are laminated on each other but the end-surface electrodes have not been formed yet has an external shape substantially like a square cylinder. Provided is a chip resistor including: a rectangular parallelepiped insulating substrate which is made of ceramics; a pair of front electrodes which are provided on lengthwise opposite end portions in a front surface of the insulating substrate; a resistive element which is ...more ...less
17
US10410771B2
Publication/Patent Number: US10410771B2
Publication date: 2019-09-10
Application number: 15/763,574
Filing date: 2016-09-20
Inventor: