405 patents
Page 5 of 21
Utility
Sensor drive circuit with improved temperature characteristic compensation
13 Dec 22
A sensor drive circuit for driving a sensor with a current includes at least one circuit configured to generate a drive current for the sensor, the drive current having a reverse temperature characteristic with respect to a temperature characteristic of an output voltage of the sensor.
Hajime Nakamura
Filed: 26 May 21
Utility
Droplet sensor
13 Dec 22
A droplet sensor includes an optical cover that forms part of a spheroid, a major axis of the spheroid being a vertical axis, a light emitting/receiving device disposed at a position offset from a first focal point of the spheroid along the major axis, and a reflector disposed in vicinity of a second focal point of the spheroid.
Yuya Kawasaki, Hideo Kurosawa
Filed: 5 Jul 19
Utility
Optical Actuator, Camera Module, and Camera-mounted Apparatus
8 Dec 22
Provided is an optical actuator that includes an elastic support member having a small influence on the drivability of a lens guide and having a high durability by configuring the optical actuator to include: a fixed-side member; a movable-side member that is arranged apart from the fixed-side member in a first direction orthogonal to an optical axis, holds a lens part, and moves by power of a driving part; and an elastic support member that supports the movable-side member with respect to the fixed-side member, and by configuring the optical actuator such that the elastic support member includes an elastic deformation part formed by at least a pair of linear parts arranged so as to follow each other in a state of having an interval between the pair of linear parts.
Yukihiro TAKIMOTO
Filed: 6 Jun 22
Utility
Lens drive device, camera module, and camera mount device
6 Dec 22
This lens drive device 1 comprises: an autofocus drive unit for performing autofocus using a driving force of a voice coil motor configured from a first coil part 112 and a magnet part 122; and a shake correction drive unit for performing shake correction using a driving force of a voice coil motor configured from a second coil part 231 and the magnet part 122.
Shinsuke Konuma, Tomoyuki Murakami, Shota Kudo, Yohei Enta
Filed: 14 Jun 17
Utility
Motor driving circuit and motor driving device
6 Dec 22
A motor driving circuit includes a wiring pattern formed in a circuit board, which is configured such that electrical current flowing into a motor flows through the wiring pattern; and a current measurement circuit configured to measure an amount of electrical current flowing through the wiring pattern, based on an amount of voltage drop occurring in response to flowing of the electrical current.
Hitoshi Hagimori, Itsuki Nakano
Filed: 20 Dec 21
Utility
Droplet Sensor
24 Nov 22
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
Secondary Battery Protection Circuit, Battery Pack, Battery System, and Method for Protecting Secondary Battery
17 Nov 22
A secondary battery protection circuit includes a potential-difference control circuit.
Takeshi YAMAGUCHI, Iwao KITAMURA
Filed: 27 Apr 22
Utility
Distance measuring camera
15 Nov 22
A distance measurement camera 1 contains a first optical system OS1 for collecting light from a subject 100 to form a first subject image, a second optical system OS2 for collecting the light from the subject 100 to form a second subject image, an imaging part S for imaging the first subject image formed by the first optical system OS1 and the second subject image formed by the second optical system OS2, and a distance calculating unit 4 for calculating the distance to the subject 100 based on the first subject image and the second subject image imaged by the imaging part S.
Fumiya Nagai, Satoru Suto, Satoshi Ajiki
Filed: 3 Dec 18
Utility
Droplet sensor
1 Nov 22
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.
Hideo Kurosawa
Filed: 23 Sep 20
Utility
Secondary battery protection circuit
25 Oct 22
A secondary battery protection circuit for a secondary battery includes: a reference voltage circuit configured to generate a reference voltage by using a depletion-type transistor and a transistor unit of enhancement type connected in series with the depletion-type transistor; a voltage divider configured to output a detection voltage obtained by dividing a power source voltage of the secondary battery; a detection circuit configured to detect an abnormal state of the secondary battery based on the reference voltage and the detection voltage; a first adjustment circuit configured to adjust a size ratio of the depletion-type transistor to the transistor unit based on threshold voltages of the depletion-type transistor and the transistor unit; and a second adjustment circuit configured to adjust the detection voltage based on the reference voltage after adjusting the size ratio.
Daichi Yamashita, Norihito Kawaguchi, Yoshihiro Satake, Nobuhito Tanaka, Koji Koshimizu
Filed: 12 Jul 19
Utility
Power supply semiconductor integrated circuit
18 Oct 22
A power supply semiconductor integrated circuit includes an output transistor, a control circuit, a first-fault detection circuit, a second-fault detection circuit, a delay circuit, and a latch circuit.
Kohei Sakurai, Shinichiro Maki
Filed: 26 Aug 21
Utility
Optical scanning device
18 Oct 22
An optical scanning device includes a mirror that includes a mirror reflection surface, a driving part that drives the mirror, and a fixed frame that supports the mirror via the driving part.
Yasuyuki Sudo
Filed: 6 Nov 19
Utility
Semiconductor integrated circuit for regulator, and fan motor system
18 Oct 22
Disclosed is a semiconductor integrated circuit for a regulator, including: a voltage control transistor connected between a voltage input terminal to which a DC voltage is input and an output terminal; a control circuit that controls the voltage control transistor according to a feedback voltage of an output; a first transistor which is provided in parallel with the voltage control transistor and to which an electric current in a proportional reduction from an electric current flowing to the voltage control transistor flows; a first comparison circuit that determines which of the electric current flowing to the first transistor and a predetermined current value is larger; and a first output terminal for outputting the determination result.
Yoichi Takano, Shinichiro Maki
Filed: 10 Dec 20
Utility
Magnetic Detection Device and Semiconductor Integrated Circuit for Amplifying Magnetic Detection Signal
13 Oct 22
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
Radar device and target detection method
11 Oct 22
This radar device can recognize the type of a specific target (in particular, a two-wheeled vehicle) with high precision, using only the radar device.
Yuji Takada
Filed: 20 Sep 18
Utility
Ranging Device and Method for Determining Distance
6 Oct 22
A ranging device includes a light emitting circuit configured to emit light and a splitter configured to split the light into multiple beams.
Yuji KIMURA, Toyoki TANAKA, Takahiko NISHIYAMA, Kensuke YAMADA
Filed: 23 Feb 22
Utility
Sensing Device and Method for Manufacturing Sensing Device
6 Oct 22
A sensing device includes a lead frame, a first insulating film, a semiconductor integrated circuit chip provided over the lead frame via the first insulating film, and a first bonding wire via which an external derivation lead and the semiconductor integrated circuit chip are electrically coupled to each other.
Etsuji HAYAKAWA, Taketomo NAKANE
Filed: 25 Mar 22
Utility
Secondary-battery protection circuit and battery pack
4 Oct 22
A secondary-battery protection circuit is configured to, in response to detecting that a first switching circuit is turned on and a second switching circuit is turned on, supply a first output voltage to a first load between a first terminal and a second terminal; and supply a third output voltage to a second load between the first terminal and a third terminal, the third output voltage indicating the sum of the first output voltage and a second output voltage, the second output voltage corresponding to a voltage across a second secondary battery.
Takeshi Yamaguchi, Yoshihiro Motoichi, Junji Takeshita
Filed: 21 May 21
Utility
Light scanning apparatus and method of controlling light scanning apparatus
4 Oct 22
A light scanning apparatus includes a light source configured to intermittently emit light based on an irradiation timing signal; a mirror configured to reflect the light emitted by the light source; an actuator configured to cause the mirror to be deflected based on drive signals; a sensor configured to output a signal according to deflection of the mirror; an irradiation timing adjusting-unit configured to adjust the irradiation timing signal based on the output signal of the sensor; and an irradiation timing storage configured to store the adjusted irradiation timing signal.
Yuji Kimura, Takayuki Kurokawa
Filed: 24 Jun 20
Utility
Push switch
4 Oct 22
The push switch 1 includes a case 2, a pair of contacts 3 and 4, a movable contact 5, a cap 7 covering the case 2 from the upper side, and a cover 8 pressing the cap 7 from the upper side.
Tetsuya Nakamura
Filed: 19 Aug 21