196 patents
Utility
Magnetic detection device and semiconductor integrated circuit for amplifying magnetic detection signal
2 Jan 24
A magnetic detection device that comprises an amplification circuit amplifying a detection signal from a magnetic sensor that is positioned, for example, in a location where an alternating current magnetic field enters as noise, and detects an alternating current magnetic field targeted for monitoring, said magnetic detection device further comprising: timer circuits that are activated in response to a change in the output of the amplification circuit, and if these clock a prescribed time, the outputs thereof change; a logic circuit that treats the outputs of the timer circuits as inputs; and an oscillation circuit for generating an operation clock signal for the timer circuits.
Yutaka Ogawa
Filed: 14 Aug 20
Utility
Droplet sensor with a protective film
19 Dec 23
A droplet sensor includes an optical cover having a curved surface that forms a part of a spheroid, a protective film that covers the curved surface of the optical cover, a light source provided at a first focal point of an ellipse facing the curved surface, and a photodetector provided at a second focal point of the ellipse.
Hideo Kurosawa
Filed: 18 May 22
Utility
Distance measuring camera
12 Dec 23
A distance measurement camera contains a first optical system OS1 for forming a first subject image, a second optical system OS2 for forming a second subject image, an imaging part S for imaging the first subject image and the second subject image and a distance calculating part 4 for performing calculation depending on image heights of distance measurement target points of the first subject image and the second subject image corresponding to a distance measurement target point of a subject 100 to calculate the distance to the subject 100 based on an image magnification ratio between a magnification of the first subject image and a magnification of the first subject image and a magnification of the second subject image.
Fumiya Nagai
Filed: 2 Dec 19
Utility
Electrical connector and electronic device
21 Nov 23
An electrical connector 1 contains a plurality of contacts 31, a first ground plate 32L and a second ground plate 32R facing the plurality of contacts 31 and arranged so as to be separated from each other in a ground plane parallel to the at least one plane in which the plurality of contacts 31 are arranged and an insulator 33 for holding the plurality of contacts 31, the first ground plate 32L and the second ground plate 32R in a state that the plurality of contacts 31, the first ground plate 32L and the second ground plate 32R are insulated from each other.
Tetsuya Tanaka
Filed: 12 May 21
Utility
Parking detection sensor and parking detection method
10 Oct 23
Parking detection sensor (100) has a Doppler sensor (110), a magnetic sensor (120) that detects magnetism on XYZ axes, a change point detection unit (130) that detects a change point in the output of the Doppler sensor (110) and the magnetic sensor (120), a level difference detection unit (140) that detects the magnetic level difference over time in the output of the Doppler sensor (110) and the magnetic sensor (120), and a state assessment unit (150) that assesses the parking state of a vehicle on the basis of the detection results of the change point detection unit (130) and the detection results of the level difference detection unit (140).
Yuji Takada
Filed: 9 Jun 20
Utility
Semiconductor integrated circuit
10 Oct 23
A semiconductor integrated circuit includes: one input terminal; multiple output terminals; multiple first current control elements connected between the input terminal and the respective output terminals; a control circuit that controls the first current control elements; a fault detection circuit that includes multiple voltage comparator circuits each of which compares a voltage proportional to a voltage of one of the output terminals with a predetermined threshold voltage and that detects an open-circuit state or a short-circuit state of the output terminals; an external terminal connected to an external resistor; a voltage convertor circuit that generates the threshold voltage according to a voltage of the external terminal that is generated by flowing a current through the external resistor, the threshold voltage being applied to an input terminal of each of the voltage comparator circuits; and a detection result output terminal for outputting a detection result by the fault detection circuit.
Yoichi Takano
Filed: 3 Aug 22
Utility
Lens driving device, camera module, and camera-mounted device
10 Oct 23
Yuichi Kasahara, Norikazu Kudo
Filed: 13 Nov 20
Utility
Power supply device and semiconductor device for power supply control
3 Oct 23
Disclosed is a power supply device including a first direct-current power source that generates a direct-current voltage to be supplied to a device that is a load, and a second direct-current power source that generates a direct-current voltage to be supplied to a sensor that detects a physical quantity.
Yoichi Takano, Shinichiro Maki, Katsuhiro Yokoyama
Filed: 25 May 21
Utility
Semiconductor device and method for manufacturing semiconductor device
26 Sep 23
A semiconductor device includes first and second trenches, and a first layer provided therebetween, in a principal surface of a semiconductor substrate, a second layer in contact with and sandwiching the first trench with the first layer, a third layer provided under the second layer and in contact with the second layer and the first trench, a fourth layer provided under and in contact with the third layer but separated from the first trench, and a fifth layer provided in the principal surface and sandwiching the second trench with the first layer.
Masatoshi Yatago, Naohiro Shiraishi, Katsunori Kondo, Noriyoshi Watanabe
Filed: 27 Dec 22
Utility
Power supply semiconductor integrated circuit including a short-circuit-fault detection circuit that detects a short circuit of the voltage-output terminal
26 Sep 23
A power supply semiconductor IC includes: an output transistor connected between a voltage-input terminal and a voltage-output terminal; a control circuit that controls the output transistor based on a feedback voltage of an output voltage; a current-limit circuit that limits an output current of the output transistor such that the output current is not equal to or greater than a current limit; a first transistor constituting a current-mirror circuit with the output transistor; a short-circuit-fault detection circuit that detects a short circuit of the voltage-output terminal based on a voltage across a resistor connected in series to the first transistor; and a first output terminal that outputs a detection result of the short-circuit-fault detection circuit.
Kohei Sakurai, Shinichiro Maki
Filed: 26 Aug 21
Utility
Electrical connector
19 Sep 23
An electrical connector includes contact pins, insulating housings for containing the contact pins therein and metallic outer contacts for respectively covering the housings.
Kazuma Endo, Hiroyuki Sadohara, Takahiro Kanda
Filed: 1 Mar 22
Utility
Vibration actuator and electronic equipment
19 Sep 23
A vibration actuator includes a movable body provided with one of a coil and a magnet that is disposed radially inward of the coil with a gap formed therebetween, a fixing body provided with the other of the coil and the magnet and a shaft portion, and an elastic support portion, the movable body vibrating in a vibration direction by means of cooperation between the coil supplied with power and the magnet.
Yuki Takahashi, Chikara Sekiguchi, Yuta Yoshii, Daisuke Kodama, Shigenori Inamoto
Filed: 22 Oct 21
Utility
Electrical connector and method for mounting electrical connector
25 Jul 23
The plug shell of the electrical connector includes the accommodation portion for accommodating the contact pin and the housing that holds the contact pin, the insertion port for inserting the contact pin and the housing into the accommodation portion, the lid member for closing the insertion port, and the hold mechanism for holding the lid member.
Takahiro Akaike, Satoshi Goto, Isao Suzuki
Filed: 14 Sep 21
Utility
Resonance voltage attenuation detection circuit, semiconductor device for switching power, and switching power supply
18 Jul 23
A resonance voltage attenuation detection circuit detects attenuation of a resonance voltage of a winding of a transformer.
Satoshi Arima, Hiroki Matsuda
Filed: 10 Dec 20
Utility
Lens drive device, camera module, and camera mount device
11 Jul 23
A lens drive device comprises: a fixing part disposed away from the movable part; a cover for covering the movable part in the direction of an optical axis; and suspension wires for supporting the movable part relative to the fixing part, one ends of the suspension wires being secured to the fixing part and the other ends being secured to the movable part.
Yukihiro Takimoto, Keiichi Sato, Ichiro Hayashi
Filed: 30 Jul 18
Utility
Semiconductor integrated circuit for a regulator for forming a low current consumption type DC power supply device
4 Jul 23
Disclosed is a semiconductor integrated circuit for a regulator for forming a low current consumption type DC power supply device.
Yoichi Takano, Chuhei Terada
Filed: 12 Aug 21
Utility
Rotary reciprocating drive actuator having magnets and coils, capable of attaching a movable object
30 May 23
A movable magnet is configured by alternately magnetizing an even number of magnetic poles forming an South pole and an North pole; a number of magnetic poles of a core body is equal to a number of magnetic poles of the movable magnet; an even number of magnetic poles of the core body is respectively arranged to face the movable magnet with an air gap therebetween on the outer peripheral side of a shaft portion; and a drive unit is provided with a magnet position holding portion to face the movable magnet and magnetically attracts the movable magnet to a reference position.
Yuki Takahashi, Masaharu Kagami, Yasutaka Kitamura
Filed: 13 Dec 20
Utility
Secondary battery protection circuit, secondary battery protection apparatus and battery pack
9 May 23
A secondary battery protection circuit for protecting a secondary battery, including: a low-voltage detecting circuit configured to detect a voltage across the secondary battery that is lower than a second voltage for low voltage detection, the second voltage being set to be lower than a first voltage for overdischarge detection; and a switching circuit configured to cause a gate of a charge control NMOS transistor to be fixed at a potential at a high side power supply terminal, upon detecting, by the low-voltage detecting circuit, that the voltage across the secondary battery is lower than the second voltage for low voltage detection.
Takashi Takeda
Filed: 20 Jan 22
Utility
Actuator, optical scanning device, and manufacturing methods
25 Apr 23
An actuator includes a first driving beam that is connected to an object to be driven and includes multiple first beams extending in a direction orthogonal to a first predetermined axis, ends of each adjacent pair of the first beams being connected to each other via one of first turnaround parts such that the first driving beam forms a zig-zag bellows structure as a whole; first driving sources formed on first surfaces of the first beams; and ribs formed on second surfaces of the first beams at positions that are closer to the first predetermined axis than the first turnaround parts.
Kensuke Yamada
Filed: 18 Dec 18
Utility
Droplet sensor
7 Mar 23
A droplet sensor includes: an optical cover having an ellipsoid surface that is a portion of a spheroid; a light source disposed at or in proximity to a first focal point of the ellipsoid surface; and a light detector disposed at or in proximity to a second focal point of the ellipsoid surface, wherein the ellipsoid surface is an effective detection area configured to reflect light emitted from the light source toward the light detector, and an amount of light reflected by the effective detection area changes in accordance with adhesion of droplets on the ellipsoid surface, and wherein the optical cover has a curved surface that is tangentially connected to an outside of the effective detection area and having a curvature greater than a curvature of the ellipsoid surface.
Hideo Kurosawa
Filed: 23 Sep 20