baber/WOPTO huggingface dataset:
Patent JP-2019169943-A (JP)
Title: Current drive circuit
Inventor: TOKAI YOICHI
IPC: H03F3/343
Filed: 2019-02-27
Abstract: To maintain an output current with high accuracy, even when an output voltage fluctuates.SOLUTION: A current drive circuit includes a first transistor that outputs a current, a second transistor that is cascode-connected to the first transistor, a third transistor that is cascode-connected to the second transistor, a first current source for supplying the current to the third transistor and the second transistor, a fourth transistor for causing the third transistor and a gate to be common, a fifth transistor for causing the second transistor and a gate to be common and that is cascode-connected to the fourth transistor, a second current source for supplying the current to the fourth transistor and the fifth transistor, a sixth transistor for causing the third transistor, the fourth transistor, and the gate to be common and for controlling a gate voltage of the first transistor, and a third current source for supplying a drain current of the sixth transistor.SELECTED DRAWING: Figure 1A
Patent JP-2020138887-A (JP)
Title: Single crystal growth device and single crystal growth method
Inventor: HOSHI RYOJI
IPC: C30B15/20
Filed: 2019-02-28
Abstract: To make it possible to cool a single crystal in a safe and power saving way without crystal collapse and transition.SOLUTION: Czochralski single crystal growth method comprising of crucibles 5 and 6 in which raw material solution 4 is included, a heater 7 for heating the crucibles 5 and 6, and heat insulation cylinder 13 arranged in outer side of the heater 7, includes: a cooling dome 10 arranged concentrically surrounding a single crystal 3 pulled up from the raw material solution 4; an auxiliary cooling dome 11 arranged concentrically surrounding the single crystal 3 inside the cooling dome 10; a crucible upper insulator member 15; a crucible outer insulator member 16; a crucible inner insulator member 11 for covering a lower part of inside the cooling dome 10; and a heat insulating member 12, and the cooling dome 10 extends from a ceiling part T of a main chamber 1 to a liquid surface of the row material solution 4, and a height from the liquid surface of the raw material solution 4 in a bottom edge of the cooling dome 10 is at a position of 200 mm or lower, in the single crystal growth device.SELECTED DRAWING: Figure 1
Patent JP-2020028105-A (JP)
Title: Diffuser and loudspeaker
Inventor: PAN LI PING
IPC: H04R1/34
Filed: 2019-03-01
Abstract: To provide a configuration capable of realizing a sound diffusion effect in a tweeter speaker.SOLUTION: A diffuser 100 used with a tweeter speaker 200 includes a cone body 110 having a top 111, a bottom 112, and a side edge 113. The top is formed as a partial spherical surface, and the side edge is formed as the aspheric surface and is connected between the top and the bottom. The top satisfies 2R/3≤r≤R. Here, r represents the radius of curvature of the top, and R represents the radius of curvature of a spherical diaphragm in a tweeter speaker.SELECTED DRAWING: Figure 3
Patent JP-2020139116-A (JP)
Title: Thermosetting adhesive film, semiconductor process sheet and method for manufacturing semiconductor package
Inventor: SATO KEI
IPC: C09J201/00
Filed: 2019-03-01
Abstract: To provide: a thermosetting adhesive film having a small adhesive difference between chips in a plurality of semiconductor chips sequentially and temporarily fixed on a film and suitable for exhibiting sufficient adhesion and suppressing a chip shift when sealing a chip array; a semiconductor process sheet; and a method for manufacturing a semiconductor package.SOLUTION: An adhesive film 10 (a thermosetting adhesive film) has a tensile storage modulus of 1 GPa or less at 20°C and that of 0.1 MPa or more at 130°C in dynamic viscoelasticity measurement performed in predetermined conditions on a film test piece having a width of 10 mm; a semiconductor process sheet X includes the film 10 and a double-sided adhesive sheet 20; and a method for manufacturing a semiconductor package comprises steps of: crimping and arranging a plurality of semiconductor chips C on the film 10 of the semiconductor process sheet X; and embedding the plurality of semiconductor chips to form a sealant part.SELECTED DRAWING: Figure 1
Patent JP-2020143918-A (JP)
Title: Incoming direction estimation device and incoming direction estimation method
Inventor: ISHIKAWA HIROKI
IPC: G01S7/02
Filed: 2019-03-04
Abstract: To provide an incoming direction estimation technology having a high accuracy of error correction.SOLUTION: An incoming direction estimation device includes an acquisition unit, a calculation unit, a correction unit, and an estimation unit. The acquisition unit acquires reception signals of virtual array antennas including a first and second virtual antennas that are generated by a combination of a plurality of transmission antennas and a plurality of reception antennas and have the same reciprocal path distance of the signal to an identical target. The calculation unit calculates a correlation matrix of the reception signals based on the reception signal for each of the plurality of virtual antennas including the first and second virtual antennas, and calculates an eigenvector based on the eigenvalue decomposition of the correlation matrix of the reception signals. The correction unit corrects the eigenvector based on elements of the eigenvector corresponding to the first and second virtual antennas. The estimation unit estimates an incoming direction of a radio wave based on the eigenvector corrected by the correction unit.SELECTED DRAWING: Figure 1
Patent JP-2020143818-A (JP)
Title: Transportation refrigerating machine
Inventor: JINNO HIROKI
IPC: F25B49/00
Filed: 2019-03-05
Abstract: To provide a transportation refrigerating machine that can appropriately detect an open phase.SOLUTION: A transportation refrigerating machine comprises a refrigerating unit comprising a compressor for compressing a refrigerant, a compressor motor for driving the compressor, a power generator for generating electric power for driving the compressor motor, a first converter provided between the compressor motor and the power generator, and a second converter 81 provided in parallel with the first converter. The second converter 81 comprises a second converter body 81B, and an open phase detection unit 81A provided in series with the second converter body 81B, and for detecting an open phase state of a current that occurs in the power generator.SELECTED DRAWING: Figure 4
Patent JP-2020144283-A (JP)
Title: Light emitting device and lighting fixture for vehicle
Inventor: KITAMURA TOMOKAZU
IPC: F21V8/00
Filed: 2019-03-07
Abstract: To achieve a light emitting device that can make light emitted from a light source incident on a light guide plate from a predetermined position even in an environment where temperature largely varies.SOLUTION: A light emitting device (1) comprises: a light source (12); a light guide plate (11) that guides light incident from the light source (12) to be emitted from a light emission surface, thereby forming an image in space; and a holding unit (13) that holds the light source (12), the holding unit (13) in which the difference between the coefficient of thermal expansion of a material forming the holding unit (13) and the coefficient of thermal expansion of a material forming the light guide plate (11) is smaller than a predetermined value.SELECTED DRAWING: Figure 1
Patent JP-2020143756-A (JP)
Title: Drive mechanism with eccentric rotation member and on-off valve device employing the same
Inventor: XIAO YANG
IPC: F16H21/10
Filed: 2019-03-08
Abstract: To provide a drive mechanism which is available for an on-off valve device, etc., further improves durability with respect to vibration and is capable of more appropriately downsizing a power device such as an electromagnetic solenoid, and the on-off valve device employing the same.SOLUTION: A drive mechanism comprises: an eccentric rotation member 10 which is rotated around an eccentric shaft 11; one winding member 21 disposed in a wound state so as to be fed out/taken up at a short eccentricity-side outer edge 12 which is a part of an outer edge of the eccentric rotation member 10 and provided at the side of a short distance from the eccentric shaft 11; and another winding member 22 which is disposed in a wound state so as to be taken up/fed out at a long eccentricity-side outer edge 13 which is a part of the outer edge of the eccentric rotation member and provided in a portion at the opposite side of the short eccentricity-side outer edge 12 and at the side of a long distance from the eccentric shaft 11.SELECTED DRAWING: Figure 1
Patent JP-2020144303-A (JP)
Title: Polymer-dispersed liquid crystal device and method of driving polymer-dispersed liquid crystal panel
Inventor: MORI SHIGEYASU
IPC: G09G3/18
Filed: 2019-03-08
Abstract: To provide a polymer-dispersed liquid crystal device which can be stably driven with low power consumption, and a method of driving a polymer-dispersed liquid crystal panel.SOLUTION: A polymer-dispersed liquid crystal device is provided, comprising: a pair of transparent substrates; a pair of transparent electrodes provided between the pair of transparent substrates; a liquid crystal layer obtained by filling a space between the pair of transparent electrodes with a polymer-dispersed liquid crystal; and a drive circuit configured to put the liquid crystal layer in a non-scattering state or scattering state by applying voltage between the pair of transparent electrodes, where the drive circuit applies a DC voltage that periodically reverses its polarity between the pair of transparent electrodes.SELECTED DRAWING: Figure 8
Patent JP-2020147633-A (JP)
Title: Polymeric material and method for producing composition and semiconductor device
Inventor: ASAKAWA KOUJI
IPC: C08L25/18
Filed: 2019-03-11
Abstract: To provide a polymeric material capable of preparing a mask pattern formed of a metal-containing organic film having high etching resistance and to provide a method for producing a composition comprising the polymeric material and a semiconductor device.SOLUTION: There is provided a polymeric material containing a polymer containing a first monomer unit having an unshared electron pair and an aromatic ring in a side chain, which is the polymeric material used in processing a film to be processed by using a composite film in which a metal compound is impregnated with an organic film as a mask pattern after forming and patterning the organic film using the polymeric material on the film to be processed of a substrate having the film to be processed.SELECTED DRAWING: Figure 3
Patent JP-2020149823-A (JP)
Title: Connector assembly
Inventor: WAKABAYASHI ITSUO
IPC: H01R31/08
Filed: 2019-03-12
Abstract: To allow for arbitrary selection of a desired pattern for easily conducting wires at a low cost.SOLUTION: A first housing includes a body part formed so that multiple first terminal housing holes, each capable of housing a first terminal internally, are formed to become multiple rows in the width direction of the first housing, and a MID formation conductive pattern formed on the front face of the body part. Pattern connection parts of the first terminal are placed to become multiple rows in the width direction of the first housing on the front face and connected with the conductive pattern. The conductive pattern conducts selected multiple pattern connection parts mutually, a second housing includes a fitting cavity, and when the body part of the first housing enters the fitting cavity and the first and second connectors are fitted, the first and second terminals come into contact and selected multiple wires are conducted mutually.SELECTED DRAWING: Figure 1
Patent JP-2019206071-A (JP)
Title: Chamfering device of workpiece
Inventor: JOHANNES WEIXLER
IPC: B23C3/12
Filed: 2019-03-15
Abstract: To provide an efficient chamfering device of a toothed workpiece.SOLUTION: A chamfering device of a toothed workpiece 5 includes: a work spindle 1 which has a work holder 2 rotatably supported around a rotary shaft so as to hold a workpiece; a tool spindle 3 which has a tool holder 4 rotatably supported around a rotary shaft so as to hold an end mill 6 and is movable to the workpiece holder 2 by passing at least one linear shaft of the device; and a controller which has a machining function for rotating the workpiece held by the work holder 2 by controlling the work spindle 1 for chamfering the toothed workpiece 5 in a state in which the end mill 6 held by the tool holder 4 is engaged with an edge section to be a machining object. By the machining function, rotational speed of the workpiece is fluctuated during the chamfering.SELECTED DRAWING: Figure 1a
Patent JP-2020151619-A (JP)
Title: Jig for fixture of cleaned objects and cleaning basket
Inventor: YOSHIDA AKITO
IPC: B08B3/04
Filed: 2019-03-18
Abstract: To provide a jig for fixture used to stabilize cleaned objects in a cleaning basket easily.SOLUTION: A jig 2 for fixture is a jig for fixing cleaned objects 3 in a cleaning basket 1. In the jig 2, groove parts 27, into which edge parts of the cleaned objects 3 are inserted, are formed on a peripheral surface of a rod-like body member 20. Fixing members 21 for fixing end parts of the body member 20 to the cleaning basket 1 are attached to the end parts of the body member 20. Using the jig 2 for fixture of the invention allows the cleaned objects 3 to be stabilized in the cleaning basket 1 easily. The structure prevents the cleaned objects 3 from floating, overlapping with each other, and moving to enable uniform cleaning.SELECTED DRAWING: Figure 4
Patent JP-2020151805-A (JP)
Title: Surface-coated cutting tool with hard coating layer exhibiting excellent wear resistance
Inventor: KONDO Shota
IPC: B23B51/00
Filed: 2019-03-20
Abstract: To provide a coated tool which has a coating layer with excellent toughness, and exhibits excellent chipping resistance and wear resistance over a long term use even when the tool is used for high-speed continuous cutting processing of stainless steel or the like.SOLUTION: A surface-coated cutting tool includes a hard coating layer, which is formed by laminating a plurality of layers including a first layer and a second layer on it, on a surface of a tool base body. The first layer, which is in contact with a tool base material, out of the hard coating layer is a TiN layer. An average particle size of TiN crystalline grains for structuring the TiN layer is 30 nm or less in an interface area within a range of 0.1 μm from an interface between the tool base body and the TiN layer. The interface area contains C of 5.0-35.0 atom%.SELECTED DRAWING: None
Patent JP-2020153611-A (JP)
Title: Heating system
Inventor: TAGUCHI MASAKATSU
IPC: F24D3/18
Filed: 2019-03-20
Abstract: To provide a heating system of high energy saving performance.SOLUTION: A heating system 1 includes a heat pump unit 2, a heating unit 4, a heat source unit (hot water storage unit 3), and a control portion. A heat medium heat exchanger 41 of the heating unit 4 exchanges heat between air exchanging heat with a condenser of the heat pump unit 2 and a heat medium for heating. The heat source unit has a main heat medium circuit 32, a going heat exchanger 51 and a returning heat exchanger 52 disposed on the main heat medium circuit 32, and flow channel switching means 6. In the going heat exchanger 51, the main heat medium exchanges heat with the heat medium for heating directed to a terminal 42 of the heating unit 4. The returning heat exchanger 52 is disposed in parallel with the going heat exchanger 51 to allow the main heat medium to exchange heat with the heating medium for heating, returning from the terminal 42. The flow channel switching means 6 can switch a going heating flow channel circulated in the going heat exchanger 51, and a returning heating flow channel circulated in the returning heat exchanger 52.SELECTED DRAWING: Figure 1
Patent JP-2020160481-A (JP)
Title: Abnormality determination device
Inventor: NAKADA AKIFUMI
IPC: G06T7/00
Filed: 2019-03-25
Abstract: To provide an abnormality determination device that can quickly detect the occurrence of an abnormal event by analyzing dynamic picture images.SOLUTION: An abnormality determination device 102, which is installed at a position above a road 106, acquires dynamic picture images in a monitoring area 108 using a camera 104 for taking images of the road from a bird's-eye view. The abnormality determination device 102 also identifies an object (vehicle) that is moving or changing by referring to a plurality of still pictures while extracting the plurality of time-sequential still pictures from these dynamic picture images. The device further determines whether or not an abnormal event such as a dangerous driving occurs by analyzing the motion modes of the plurality of objects, and when the dangerous driving is detected, issues a warning to the vehicle etc.SELECTED DRAWING: Figure 1
Patent JP-2019184056-A (JP)
Title: Helical tooth belt and belt transmission device
Inventor: NOBORIKAWA Yoshihito
IPC: F16H7/02
Filed: 2019-03-26
Abstract: To provide a helical tooth belt that increases rigidity without increasing a thickness of the helical tooth belt, and when used in a belt transmission device driven at a high load or high speed rotation, can further reduce noise and vibration while maintaining transmission performance.SOLUTION: A tooth belt 30 has a back portion 31, core wires 33 arranged and embedded in a belt width direction, and a plurality of teeth 32 that are provided at predetermined intervals in a belt longitudinal direction on one surface of the back portion 31, in which each tooth is inclined in the belt width direction. The surface of the teeth 32 and a part of the one surface of the back portion 31 are configured of a tooth cloth 35. The tooth pitch P of the teeth 32 is 1.5 mm or more and less than 2.0 mm, and a thickness of the back portion 31 is 0.4 mm to 1.2 mm. The core wire 33 is a twisted cord including high-strength glass fiber or carbon fiber, and the ratio of a total value of the distance d between the core wire 33 and the core wire 33 adjacent in the belt width direction to the belt width W is in a range of 20% to 60%.SELECTED DRAWING: Figure 3
Patent JP-2020157224-A (JP)
Title: Reverse osmosis method and system
Inventor: GOTO HIDEKI
IPC: B01D61/58
Filed: 2019-03-26
Abstract: To provide a reverse osmosis method and system capable of preventing scale troubles in a reverse osmosis apparatus and achieving a stable reverse osmosis treatment.SOLUTION: Water to be treated (raw water) is supplied from a tank of water to be treated to a first RO apparatus 3 by a pump 2, and a first permeated water is taken out. A first concentrated water of the first RO apparatus 3 is added with an acid such as hydrochloric acid and sulfuric acid by acid adding means 4 so as to be adjusted to be acidic of about pH 4-6, especially 4.5-5.5, and then supplied to a decarbonation column 5 and decarbonated. The decarbonated water is supplied to a second RO apparatus 6, and a second permeated water is returned to the water 1 to be treated through a return line 7.SELECTED DRAWING: Figure 1
Patent JP-2020167765-A (JP)
Title: Rotary electric machine control system
Inventor: CHIBA AKIRA
IPC: H02P21/22
Filed: 2019-03-28
Abstract: To appropriately reduce both of a circumferential excitation force and a radial excitation force of a distributed winding rotary electric machine.SOLUTION: A torque of an opposite phase of a harmonic torque component extracted from an actual torque of a rotary electric machine is defined as an excitation force reduction torque. In an orthogonal vector coordinate system, a straight line passing through a reference point P0 which is the intersection point between a basic control line 60 and an equal torque line 30 of a target torque is defined as a correction straight line K, and intersection points between the correction straight line K and a first torque line 31 and a second torque line 32 which are equal torque lines 30 of a first torque and a second torque which are the peak values of the excitation force reduction torque are defined as a first intersection point P1 and a second intersection point P2, respectively. The correction straight line K that provides the minimum value for the difference between the peak value of an in-phase radial excitation force and the peak value of a different-phase radial excitation force is defined as a target correction straight line KT, and a d-axis current and a q-axis current that vibrate at the frequency of the excitation force reduction torque with the first intersection point P1 and the second intersection point P2 for the target correction straight line KT as peaks are defined as a correction current command.SELECTED DRAWING: Figure 9
Patent JP-2019149806-A (JP)
Title: Receiver
Inventor: WATANABE HIROSHIGE
IPC: H04H60/23
Filed: 2019-03-29
Abstract: To provide a receiver and a receiving method for the receiver that are capable of displaying an indication that security communication is executed in a state where video and multimedia content are displayed on a full screen when the security communication is executed.SOLUTION: According to one embodiment, a receiver includes a receiving unit, a content processing unit, a display control unit, and a communication unit. The receiver also includes a security operation detection unit that detects a communication state of security communication based on transport layer security (TLS) via the communication unit. If the communication state is in execution of the security communication and if an error occurs in the security communication during the execution, a message saying that the security communication cannot be executed is displayed on a display screen of a display unit.SELECTED DRAWING: Figure 3A
Patent JP-2020164053-A (JP)
Title: Vehicle body front part structure
Inventor: MIZOBUCHI NORIHIRO
IPC: B62D25/20
Filed: 2019-03-29
Abstract: To uniformize a bending form of a front side member 3 during a frontal collision and improve noise, vibration, harshness characteristics.SOLUTION: A front part of a vehicle has: a pair of front side members 3 which extend in a vehicle fore and aft direction and are disposed spaced apart from each other in a vehicle width direction; power plant mounts 7, each of which is fixed to a mount attachment part 10 provided on an upper surface of the front side member 3; suspension cross members 5, each of which extends in the vehicle width direction below the front side member 3 and is fixed to a suspension attachment part 15 provided on a lower surface of the front side member 3; and reinforcement members 20, each of which is provided at the front side member 3 and extends so as to connect the mount attachment part 10 to the suspension attachment part 15. The reinforcement member 20 is fixed to the power plant mount 7 at the mount attachment part 10 and fixed to the suspension cross member 5 at the suspension attachment part 15.SELECTED DRAWING: Figure 1
Patent JP-2020164969-A (JP)
Title: Lithium concentration method and method for producing lithium hydroxide
Inventor: ARIYOSHI YUKI
IPC: C22B7/00
Filed: 2019-03-29
Abstract: To provide a lithium concentration method that can effectively remove sodium by solvent extraction, and a method for producing lithium hydroxide.SOLUTION: A method for concentrating lithium by solvent extraction has: a scrubbing step for scrubbing a solvent that is used for lithium ion extraction and contains lithium ions and sodium ions, with a lithium solution; and a back extraction step of back extracting lithium ions from the solvent having undergone the scrubbing step.SELECTED DRAWING: None