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Mitsumi Electric Co Ltd
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Mitsumi Electric Co Ltd patents


Recent patent applications related to Mitsumi Electric Co Ltd. Mitsumi Electric Co Ltd is listed as an Agent/Assignee. Note: Mitsumi Electric Co Ltd may have other listings under different names/spellings. We're not affiliated with Mitsumi Electric Co Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Mitsumi Electric Co Ltd-related inventors


Battery protecting apparatus

A battery protecting apparatus includes: a charging/discharging control chip including a charging control FET and a discharging control FET connected to a secondary battery; a protecting chip configured to control, based on a voltage between both ends of the secondary battery, the FETs to prevent overcharging, over discharging, and an... Mitsumi Electric Co Ltd

Semiconductor device for power supply control

A semiconductor device for power supply control includes an on/off control signal generation circuit which generates a control signal for turning on or off a switching element; a current detection terminal to which voltage in proportion to a current flowing in a primary-side winding wire of a transformer is input;... Mitsumi Electric Co Ltd

Lens drive device, camera module, and camera mounting device

Using drive force from a voice coil motor constituted of an autofocus coil unit and an autofocus magnet unit, a lens drive device automatically carries out focusing by moving an autofocus movable unit, which includes the autofocus coil unit, with respect to an autofocus fixed unit, which includes the autofocus... Mitsumi Electric Co Ltd

Semiconductor device for controlling power source

A semiconductor device for power supply control includes an on/off control signal generation circuit which generates a control signal for turning on or off a switching element, a high-voltage input start terminal, a power supply terminal, a switching unit, a power supply voltage control circuit which monitors voltage of the... Mitsumi Electric Co Ltd

Antenna mounting component and antenna device

An antenna mounting component to be mounted to a fixing aperture on a mounting face of a car body, includes: a male screw for fixing an antenna; a protrusion provided on an antenna base, the protrusion having a female screw corresponding to the male screw; and a legged washer having... Mitsumi Electric Co Ltd

Charging control circuit in in-vehicle charging connector, in-vehicle charging connector, and in-vehicle data-transfer/charging system for external device

A charging-control circuit, connecting an in-vehicle apparatus with an external apparatus and enabling data-transfer therebetween, includes a DC-to-DC converter, to which a main power-supply's battery-voltage or the in-vehicle apparatus's bus-voltage is supplied, converting the supplied voltage to a predetermined voltage; an output controller controlling the data-transfer, and determining a current... Mitsumi Electric Co Ltd

Semiconductor device for controlling power source

A semiconductor device for power supply control includes an on/off control signal generation circuit which generates a control signal to turn on or off the switching element, a high-voltage input start terminal to which alternating-current voltage of AC input or voltage rectified in a diode bridge is input, a high-voltage... Mitsumi Electric Co Ltd

Lens driving apparatus, camera module, and camera-equipped mobile terminal

A lens driving apparatus includes: a lens holder including an auto-focusing first coil; a lens holder moving section; driving magnets disposed at four corners of the lens holder moving section; a camera-shake correction second coil; a plurality of suspension wires; an elastic member; and at least one damper compound, wherein... Mitsumi Electric Co Ltd

Protection ic and semiconductor integrated circuit

A protection IC includes a bias output terminal connected to a back gate of a MOS transistor, a load side terminal connected to a power supply path between a load and the MOS transistor, a load side switch inserted in an electric current path connecting the bias output terminal and... Mitsumi Electric Co Ltd

Secondary battery protection circuit

A secondary battery protection circuit includes a first terminal connected to a power supply path between a secondary battery and a MOS transistor, a second terminal connected to the power supply path between a load and the MOS transistor, a third terminal connected to a gate of the MOS transistor,... Mitsumi Electric Co Ltd

Lens driving device, camera module, and camera mount device

The lens driving device according to the present invention is provided with: an autofocus drive part for moving an autofocus movable part with respect to an autofocus fixed part in an optical axis direction and thereby automatically performing focusing; a shake correction drive part for correcting shake by causing a... Mitsumi Electric Co Ltd

Lens drive device, camera module, and camera-mounting device

Provided is a lens drive device that, using drive force from a voice coil motor, automatically carries out focusing by moving an autofocus movable unit with respect to an autofocus fixed unit in the direction of an optical axis. The lens drive unit is provided with a position detection unit... Mitsumi Electric Co Ltd

Semiconductor device for controlling power supply

A semiconductor device, for controlling a power supply which generates and outputs a driving pulse, includes: a clock generating circuit with an oscillating circuit in which a frequency can be changed and which generates a clock signal; a voltage/electric current control circuit which provides timing to turn off a switching... Mitsumi Electric Co Ltd

Lens drive apparatus

A lens drive apparatus includes a damper compound that is disposed between at least one protrusion and a fixed member and that suppresses undesired resonance of an auto-focusing lens driving section in a direction of an optical axis. The at least one protrusion protrudes from a magnet holder in the... Mitsumi Electric Co Ltd

Lens driving device, camera module, and camera-equipped device

A lens driving device is provided with: a driving part including a movable part and a fixing part, a base member having a rectangular shape in plan view, wherein a shield cover is attached at a peripheral portion of the base member, and a side surface of the peripheral portion... Mitsumi Electric Co Ltd

Lens-driving device, camera module, and camera mount device

This lens-driving device is provided with: a shake correction drive unit which, utilizing the drive power of a voice coil motor, causes a moveable shake correction unit that includes a shake correction magnet unit to oscillate within a plane orthogonal to the optical axis with respect to a stationary shake... Mitsumi Electric Co Ltd

Non-isolated power supply device

The present invention addresses the problem of detecting the timing at which an inductor current becomes zero, turning on a switching element at the optimal timing, and enhancing power efficiency without increasing part quantity or external terminal quantity. A control circuit is configured from a semiconductor integrated circuit; is provided... Mitsumi Electric Co Ltd

Actuator, camera module, and camera mounting device

The purpose of the present invention is to provide an actuator which can realize a further reduction in height. Provided is an actuator which performs shake correction by tilting a driven member using the drive force of a voice coil motor, wherein a support part tiltably supports a movable body... Mitsumi Electric Co Ltd

Antenna device

An antenna device includes a flat base body and a flat conductive body which is disposed on the base body and which has a polygonal shape such that a lower side opposed to a ground is shorter than an upper side. The conductive body includes a feeding point on the... Mitsumi Electric Co Ltd

Wireless transmitting device and wireless transmitting system

A wireless transmitting device 1 using electric power supplied from a power generating element 100 which can generate the electric power by utilizing mechanical energy externally applied includes an electric storage element 3 for storing the electric power generated by the power generating element 100; and a wireless transmitting unit... Mitsumi Electric Co Ltd

Sensor device and semiconductor device

A sensor device is provided including: an electric wire; a semiconductor device including an inductor and an amplifier, the inductor being configured to detect a magnetic field generated around the electric wire, the amplifier including a bipolar element configured to amplify a voltage generated at the inductor; and a substrate... Mitsumi Electric Co Ltd

Capacitive load drive circuit and optical scanning device

A capacitive-load driver circuit that is connected to terminals connected to capacitive loads and an output stage of an amplifier for feeding output voltages to the terminals to drive the capacitive loads. The capacitive-load driver circuit temporarily feeds a current during a transition period of the output voltages from one... Mitsumi Electric Co Ltd

Lens holder driving device and camera-equipped portable terminal

A lens holder driving device is provided with a lens holder, a securing part including a base member, a drive mechanism, and a position detection unit. The drive mechanism includes a yoke that is provided to stand on the base member. The position detection unit includes a sensor magnet mounted... Mitsumi Electric Co Ltd

Power generator

Provided is a power generator 1. The power generator includes two magnetostrictive rods 2 arranged side by side and formed on a magnetostrictive material, coils 3 respectively wound around the magnetostrictive rods 2 and a beam member 73 having a function of generating stress in the two magnetostrictive rods 2.... Mitsumi Electric Co Ltd

Regulator

A regulator 100 is provided. The regulator 100 includes an output transistor M1 controlled by an output of an error amplifier circuit 104; a first MOS transistor M2 having a gate that is connected to a first terminal; a second MOS transistor M3, having a source that is connected to... Mitsumi Electric Co Ltd

Lens driving device, camera module, and camera-equipped portable terminal

A lens driving device comprising: an autofocus driving unit in which an autofocus movable part is elastically supported by an autofocus fixed part due to an elastic support part; and an auxiliary magnet which, in a reference position of the autofocus movable part, has a movement direction action force of... Mitsumi Electric Co Ltd

Power generator

Provided is a power generator 1. The power generator includes two magnetostrictive rods 2 arranged side by side and formed of a magnetostrictive material; coils 3 wound around the magnetostrictive rods 2; and a beam member 73 having a function of generating stress in each of the magnetostrictive rods 2.... Mitsumi Electric Co Ltd

Biological component information measurement device

In the present invention, without decreasing measurement accuracy, a biological component information measurement device can have a miniaturized device structure. In a biological component information measurement device (100), a sample container (104) accommodates a measurement target (105) such as blood, cultured cells, or urine, and a light from a light... Mitsumi Electric Co Ltd

Radar module, transport equipment, and object identification method

This radar module is provided with: a transmission antenna; a reception antenna; a signal source for generating a transmission signal; a transmission unit for transmitting a transmission signal towards a target object through the transmission antenna; a reception unit for receiving, through the reception antenna, a reflected signal produced by... Mitsumi Electric Co Ltd

Lens holder driving device and mobile terminal with camera

In a lens holder driving device, each of an upper plate spring and a lower plate spring, which are respectively provided on an upper side and a lower side of a lens holder, has an inner peripheral side end fixed to the lens holder, an outer peripheral side end fixed... Mitsumi Electric Co Ltd

Lens holder driving device and mobile terminal with camera

In a lens holder driving device, each of an upper plate spring and a lower plate spring, which are respectively provided on an upper side and a lower side of a lens holder, has an inner peripheral side end fixed to the lens holder, an outer peripheral side end fixed... Mitsumi Electric Co Ltd

Lens holder drive device and camera-equipped portable terminal

A lens holder drive device has: a lens holder; a fixing part that includes a base member disposed below the lens holder; a drive mechanism; an upper-side plate spring; a lower-side plate spring; and a position detection unit that detects the position of the lens holder in the optical axis... Mitsumi Electric Co Ltd

Lens driving device, camera module, and camera mounting device

Provided is a technology which: has a structure that is advantageous for size reduction and power saving; and, moreover, is useful when automatic focusing using a closed-loop control system. A lens driving device comprising: an autofocus driving unit; a Hall element which separates an autofocus magnet section in the optical... Mitsumi Electric Co Ltd

Secondary-battery protecting integrated circuit, secondary battery protection apparatus, and battery pack

A secondary-battery protecting integrated circuit includes, a power supply terminal connected to a positive electrode of the secondary battery, a ground terminal connected to a negative electrode, an input terminal connected to the negative terminal, a control terminal at which a control signal is input, a pull-down resistor connected between... Mitsumi Electric Co Ltd

Electromagnetic converter, actuator, and pump

An electromagnetic converter that converts kinetic energy to electric energy, or converts electric energy to kinetic energy, includes a core configured to have a coil disposed; a magnet configured to be magnetically coupled with the core; a yoke configured to have the magnet disposed; a fixing portion configured to have... Mitsumi Electric Co Ltd

03/23/17 / #20170082829

Lens drive device, camera module, and mobile terminal with camera

A lens drive device is provided with: an AF drive unit that has an AF coil unit disposed around a lens unit and an AF magnet unit disposed separately in the radial direction with respect to the AF coil unit and automatically carries out focusing; and an OIS drive unit... Mitsumi Electric Co Ltd

03/02/17 / #20170062149

Switch and manufacturing switch

A switch is provided with a case, a plurality of fixed conductive member, a movable conductive member, and a waterproof part. The case is formed of a first resin. The waterproof part is formed of a second resin whose adhesion to the plurality of fixed conductive members is higher than... Mitsumi Electric Co Ltd

03/02/17 / #20170062914

Antenna device

An antenna device includes an antenna base, an antenna cover attached to the antenna base and an antenna unit. The antenna base includes a metallic die-cast base and a resin base. The die-cast base includes a protrusion which is to be inserted in a fixing opening formed in a vehicle... Mitsumi Electric Co Ltd

03/02/17 / #20170063232

Semiconductor integrated circuit for regulator

A semiconductor integrated circuit for a regulator includes the following: a voltage controlling transistor; a controlling circuit; a first and second transistor; a first external terminal to connect a current voltage converting element; a first and second voltage comparing circuit which compares a converted voltage with a predetermined comparison voltage... Mitsumi Electric Co Ltd

02/16/17 / #20170045753

Actuator, camera module, and mobile terminal with camera

This actuator carries out shake correction by inclining a driven unit using the driving force of a voice coil motor having a coil portion and a magnet portion. The actuator is provided with: a movable portion that has a flat frame-like holding member to which the driven unit is adhered,... Mitsumi Electric Co Ltd

02/16/17 / #20170047835

Actuator, air pump, beauty treatment device, and laser scanning device

An actuator includes: a movable body including a single-pole magnetized single pole magnet; and a plurality of electromagnets each having a magnetic core portion and a coil portion for exciting the core portion. The actuator has: a fixed body on which three or more magnetic poles of the electromagnets are... Mitsumi Electric Co Ltd

02/16/17 / #20170047866

Power generator

A power generator 1 includes at least two magnetostrictive elements 10 each including a magnetostrictive rod through which lines of magnetic force pass in an axial direction thereof and a coil 3 wound around the magnetostrictive rod 2; and a beam member 83 for connecting one end portions of the... Mitsumi Electric Co Ltd

02/09/17 / #20170040912

Power generator

A power generator 1 includes a magnetostrictive rod 2 through which lines of magnetic force pass in an axial direction thereof, a beam member 73 having a function of generating stress in the magnetostrictive rod 2, and a coil 3 arranged so that the lines of magnetic force pass inside... Mitsumi Electric Co Ltd

02/02/17 / #20170031174

Lens holder driving device

An AF unit of a lens holder driving device includes a lens holder, a focusing coil, a permanent magnet having a plurality of permanent magnet pieces having first surfaces opposed to the focusing coil, a magnet holder holding the permanent magnet, and first and second leaf springs supporting the lens... Mitsumi Electric Co Ltd

02/02/17 / #20170033574

Multichip, battery protection apparatus, and battery pack

A multichip in which a protection IC for detecting at least one of overcharge, over discharge, and overcurrent of a secondary battery and a monitoring IC for monitoring a battery state of the secondary battery are integrated in a package. The protection IC and the monitoring IC are not overlapped... Mitsumi Electric Co Ltd

02/02/17 / #20170033575

Composite integrated circuit for secondary battery, composite device for secondary battery, and battery pack

A composite integrated circuit includes a protection IC that controls a switching circuit inserted in a power supply line to allow or prevent discharging of the secondary battery, and a monitoring IC that includes a ground terminal connected to the power supply line at a position between the secondary battery... Mitsumi Electric Co Ltd

01/19/17 / #20170014057

Biological-information measurement device

Provided is a biological-information measurement device having a small-sized device configuration without a reduction in measurement precision. Reflected light from a measurement object (10) is split using a rotary diffraction grating (110), and the space requirements and number of components of a light-splitting optical system can thereby be reduced. A... Mitsumi Electric Co Ltd








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