405 patents
Page 9 of 21
Utility
Lens driving device, camera module, and camera-equipped device
28 Dec 21
This lens driving device comprises an autofocus (AF) driving unit and a shake correction driving unit, wherein a shake correction support member has a pair of power supply suspension wires and a pair of signal suspension wires.
Tomoyuki Murakami, Keiichi Sato
Filed: 29 Nov 16
Utility
Semiconductor Device and Method for Manufacturing Semiconductor Device
23 Dec 21
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: 3 Jun 21
Utility
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14 Dec 21
Disclosed is a switching power supply device including: a transformer for voltage conversion; a main switching element connected in series to a primary coil; a primary side control circuit that performs on/off control of the main switching element; a synchronous rectification MOS transistor connected in series to a secondary coil; and a secondary side control circuit that performs on/off control of the MOS transistor, wherein the secondary side control circuit includes: an off-timing detection circuit that compares a drain voltage of the MOS transistor with a predetermined threshold voltage, and detects a timing to turn off the MOS transistor; and a threshold voltage setting circuit that sets the threshold voltage, and the threshold voltage setting circuit sets the threshold voltage based on a conduction period of the secondary coil or a period obtained by adding the conduction period to a conduction period of the primary coil.
Minoru Kado, Takumi Hyugaji, Takeshi Sato
Filed: 19 Feb 20
Utility
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9 Dec 21
A sensor drive circuit for driving a sensor with a current includes a first current source configured to generate a first current having a temperature characteristic of which a first order coefficient is positive and of which a second order coefficient is negative.
Hajime NAKAMURA
Filed: 26 May 21
Utility
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2 Dec 21
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
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2 Dec 21
A DC power supply device includes a switching power supply and a current stabilizing circuit connected in a pre-stage or a post-stage of the switching power supply.
Koji TOCHITANI
Filed: 20 May 21
Utility
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23 Nov 21
A rechargeable battery protection circuit protects a rechargeable battery, using two NMOS transistors inserted in series in a current path between a battery cathode and a positive terminal connected to load or power terminal of a charger.
Takashi Takeda
Filed: 28 Jun 19
Utility
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23 Nov 21
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: 28 Feb 19
Utility
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9 Nov 21
A light scanning apparatus includes a light source configured to output laser light, and a mirror configured to reflect the laser light from the light source.
Yuji Kimura
Filed: 5 Feb 20
Utility
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9 Nov 21
A lens driving device includes: a fixing part; a movable part; and an actuator configured to displace the movable part in a direction orthogonal to the optical axis direction; in which the fixing part includes a coil substrate, a base member made of a non-conductive material, the base member including a base side through hole, and a terminal member made of a conductive material and partially embedded in the base member, the terminal member including a first connecting part serving as an external terminal and a second connecting part configured to be connected with the coil substrate, and in which in plan view in the optical axis direction, the second connecting part and the base side through hole are disposed to overlap each other, and the second connecting part and the coil substrate are connected by a solder provided inside the base side through hole.
Yukihiro Takimoto
Filed: 1 Oct 18
Utility
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2 Nov 21
A secondary battery protection circuit for protecting a secondary battery with multiple connected-in-parallel cells, includes a charging fault detection unit for each cell for prohibiting charging of the corresponding cell when overcharging and/or charging over-current for the corresponding cell is detected; a charging control element for each cell for cutting off a charging path for the corresponding cell when the charging of the corresponding cell is prohibited; a detection resistor for each cell inserted in series in the charging path; and a balance control unit for, in order to balance a first charging current flowing in a first charging path for a first cell with a second charging current flowing in a second charging path for a second cell, controlling a difference between the first and second charging currents in a saturation region of the charging control element based on a detection voltage generated by the detection resistor.
Yoshihiro Motoichi, Iwao Kitamura
Filed: 25 Jun 18
Utility
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28 Oct 21
A push switch contains a circuit substrate, two fixed contacts disposed on the circuit substrate, a dome-shaped spring which is disposed above the two fixed contacts and can be displaced between a first position in which the two fixed contacts are in a non-conductive state and a second position in which the two fixed contacts are in a conductive state and a conductive elastic member disposed on a surface of the dome-shaped spring facing the circuit substrate and having a surface facing the two fixed contacts.
Daiki FUJIMOTO, Hidetake KIKUCHI
Filed: 31 Mar 21
Utility
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26 Oct 21
A battery control circuit controls a balance of cell voltage values of cells coupled in series, and includes connection terminals respectively coupling to a positive electrode of a corresponding cell, a ground terminal coupled to an internal ground of the battery control circuit and coupling to a negative electrode of a cell located at a lowest stage of the cells, a control circuit to select, from the connection terminals, at least one connection terminal coupled to the internal ground via an internal current path of the battery control circuit, and a current generation circuit to supply a terminal current whose current value varies according to the cell voltage value of the cell whose positive electrode is coupled to the at least one of the connection terminals selected by the control circuit, from the at least one of the connection terminals to the internal ground via the internal current path.
Kohei Shibata
Filed: 21 Sep 18
Utility
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26 Oct 21
A battery pack includes a secondary battery, a secondary battery protecting integrated circuit configured to protect the secondary battery, at least one sensor configured to output a fault signal indicating sensing of a fault in the battery pack or an electronic apparatus including the battery pack, a detecting circuit configured to output a fault detection signal indicating a detection of the fault signal, a delay circuit configured to output a pulse delaying from the fault detection signal, and a counter configured to count a number of generating the pulse, the counter having at least N bits (N is an integer greater than 1), wherein the counter stops an operation until a count of 2(N-1).
Takeshi Yamaguchi
Filed: 5 Mar 18
Utility
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26 Oct 21
A camera module has a magnet which is held by a magnet holder included in an optical device part together with a lens holder and which is used in common as a magnet in collaboration with a first coil to move an imaging device and the lens holder relative to each other in a direction of an optical axis, a magnet in collaboration with a second coil to move the imaging device and the optical device part relative to each other in a direction orthogonal to the optical axis, and a magnet of which a magnetic force is detected by a Hall device.
Akihiro Moriya, Masayoshi Sugawara
Filed: 16 Jun 20
Utility
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21 Oct 21
A camera module has: a lens holder for holding a lens unit; an image sensor holding unit that is arranged spaced apart from the lens holder in a first direction along the optical axis of the lens unit and holds an image sensor; and a drive unit that moves the image sensor holding unit with respect to the lens holder in a second direction and a third direction which are perpendicular to the optical axis and are perpendicular to each other, and that rotates the image sensor holding unit around the optical axis.
Tomohiko OSAKA
Filed: 22 Aug 19
Utility
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19 Oct 21
A light guide guides light emitted by a light source to a portion around an illumination target.
Koichi Watanabe
Filed: 26 Feb 20
Utility
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12 Oct 21
A light scanning apparatus includes a mirror supporting portion having a mirror on a front surface, an actuator configured to driving the mirror supporting portion, a fixed frame disposed around the mirror supporting portion and the actuator, and at least one rib disposed on a back surface side of the mirror supporting portion or the actuator, wherein the rib includes a straight portion and a contact portion having a width wider than a width of the straight portion.
Akira Takahashi
Filed: 7 Oct 19
Utility
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12 Oct 21
An optical scanning device includes a drive beam configured to support a mirror, and a drive source provided on the drive beam and configured to oscillate the mirror about a predetermined axis passing through the center of the light reflecting surface of the mirror.
Tsukasa Yamada
Filed: 18 Apr 18
Utility
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12 Oct 21
A control device for a laser scanning display apparatus includes a laser device, a current source that generates an electric current supplied to the laser device, and a controller that controls the current source to set a current value of the electric current supplied to the laser device.
Toyoki Tanaka, Etsuji Hayakawa
Filed: 4 Mar 20