baber/WOPTO huggingface dataset:
Patent JP-2021034888-A (JP)
Title: Receiver for free space optical communications
Inventor: ASAI TAKAYUKI
IPC: H04B10/112
Filed: 2019-08-26
Abstract: To provide a receiver for free space optical communications which is configurable compact and capable of receiving signal light while surely segmenting it from background light.SOLUTION: A receiver 1 for free space optical communications comprises: a beam splitter 3 which splits an incident light ray R into light rays R1 and R2 in two directions; an imaging unit 5 which images one split light ray R1; an identification unit 6 which extracts a signal light ray L from an image P of the one light ray R1 captured by the imaging unit 5 and identifies a position of the signal light ray L in the image P; a receiving element 10 which receives the other split light ray R2; and a control unit 11 which controls a breaker 8 disposed between the beam splitter 3 and the light receiving element 10. The control unit 11 performs control in such a manner that the breaker 8 makes only a light ray R3 within a limited range including the signal light ray L, in the other light ray R2 incident to the light receiving element 10 and does not make the other light ray R2 outside of the range incident to the light receiving element 10 based on the position of the signal light ray L in the image P identified by the identification unit 6.SELECTED DRAWING: Figure 1
Patent JP-2021032757-A (JP)
Title: Concentration measuring method and concentration measuring device
Inventor: KAWAMURA TATSURO
IPC: G01N33/543
Filed: 2019-08-27
Abstract: To provide a concentration measuring method with which it is possible to realize improvement on the accuracy of quantifying a detection object substance.SOLUTION: The concentration measuring method includes: arranging a liquid 61 on a substrate 11, the liquid including a composite 6 of a first substance 3 having a magnetic particle 2 fixed thereto, a second substance 5 having a phosphor fixed thereto and a detection object substance 1; irradiating the substrate 11 with excitation light; applying a first magnetic field gradient that attracts the composite 6 in a first direction toward an irradiation area on the substrate 11; applying a second magnetic field gradient that moves the composite 6 in a second direction after stopping the application of the first magnetic field gradient and observing the fluorescence emanated by the phosphor in the composite 6 as the light spot of a two-dimensional image; and counting the number of light spots the positions of which change in the second direction in the two-dimensional image and measuring the concentration of the detection object substance 1. In a fluorescence observation, the first magnetic field gradient is applied again when it is detected that the first light spot the position of which changes in the second direction in the two-dimensional image became extinct; in a concentration measurement, a first light spot is counted as one light spot when it is detected that the first light spot reappeared after the second application of the first magnetic field gradient.SELECTED DRAWING: Figure 5
Patent JP-2021024265-A (JP)
Title: Three-leg compass
Inventor: TSUKURA TOSHIRO
IPC: B43L9/02
Filed: 2019-08-08
Abstract: To provide a compass capable of preventing the needle at the tip of the central leg from coming out of the paper hole when drawing a circle, unlike a conventional state where the needle at the tip of the central leg is apt to come out of the paper hole because the knob is conventionally located in the middle between the central leg and the rotating leg, making it difficult to draw by applying force to the knob so as to fix the position of the needle at the tip of the central leg.SOLUTION: A three-leg compass comprises a structure where a junction leg 3 is located between a central leg 2 and a rotating leg 14a so that a knob 1 and a needle 7 at a tip of the central leg are arranged on a same vertical line.SELECTED DRAWING: Figure 1
Patent JP-2020005295-A (JP)
Title: Communication device
Inventor: SUZUKI TAKANOBU
IPC: H04W4/00
Filed: 2019-09-05
Abstract: To provide a technique for a communication device to appropriately communicate with a mobile terminal.SOLUTION: If a multi-function peripheral (MFP) is currently participating in a radio network (YES at S4), it sends a mobile terminal 50 radio setting for the mobile terminal to join the radio network by using an NFC interface 22 (S16). On the other hand, if the MFP is not currently participating in the network (NO at S4), it constructs a new radio network which both MFP and mobile terminal join (S18).SELECTED DRAWING: Figure 2
Patent JP-2021039309-A (JP)
Title: Fixing device and image forming apparatus
Inventor: KAWAGUCHI TAKAHIRO
IPC: G03G15/20
Filed: 2019-09-05
Abstract: To maintain slidability of a fixing belt for a long period.SOLUTION: A fixing device according to the present embodiment is a fixing device that fixes a toner image formed on a medium to the medium, and comprises: a heating rotating body; a heater; a pressing member; a pressure rotating body; and a lubricant holding member. The heating rotating body is rotatably supported. The heater heats the heating rotating body. The pressing member is arranged inside the heating rotating body. The pressure rotating body is pressed by the pressing member with the heating rotating body therebetween to form a nip through which the medium passes. A second lubricant with a second viscosity higher than a first viscosity is added to the lubricant holding member, which is in contact with an inner peripheral surface of the heating rotating body.SELECTED DRAWING: Figure 3
Patent JP-2021041933-A (JP)
Title: Composite paper container and method for manufacturing the same
Inventor: HIGASHI TOSHIFUSA
IPC: B65D3/28
Filed: 2019-09-06
Abstract: To provide a composite paper container that can readily separate a plastic annular member from a paper container at disposal in a composite paper container including a plastic annular member for re-sealing.SOLUTION: A composite paper container includes: a paper container body including at least a bottom part and a side wall part; and an annular member. The annular member covers an opening end surface of the paper container body and an upper part of an outside surface of the side wall part, whereby the annular member can be separated from the paper container body.SELECTED DRAWING: Figure 2
Patent JP-2021041307-A (JP)
Title: Water treatment method and water treatment device
Inventor: HASEBE YOSHIAKI
IPC: C02F3/12
Filed: 2019-09-06
Abstract: To provide a water treatment method and a water treatment device, capable of performing a settling step at a suitable time tailored for settleability of a biological sludge.SOLUTION: A water treatment method includes: an inflow step of making water to be treated flow into a reaction chamber; a biological treatment step of biologically treating the water to be treated in the reaction chamber with a biological sludge; a settling step of settling the biological sludge in the reaction chamber; and a discharging step of discharging biologically-treated water in the reaction chamber. In the settling step, a concentration of the biological sludge at an interface position of the biological sludge in the reaction chamber or at a predetermined level in the reaction chamber is detected by using detecting means for detecting the interface position of the biological sludge or the concentration thereof, and time to finish the settling step is determined based on the detected results.SELECTED DRAWING: Figure 1
Patent JP-2019205918-A (JP)
Title: Game machine
Inventor: OKAMURA GEN
IPC: A63F7/02
Filed: 2019-09-11
Abstract: To provide a game machine capable of making a player continuously have a willingness to participate in games.SOLUTION: If a start winning that will become a "special symbol big win" is being reserved, and a type of the special symbol big win of this time is a "big win A" and the special symbol big win of the next time is a "big win C", in an ending presentation corresponding to the "big win A", an "aggregate time shortening period display" is performed. In this way, as a time shortening period of normal symbol from after the end of the special symbol big win of this time till the end of special symbol big win of the next time is notified, therefore the time shortening period of normal symbol, which is beyond expectation to a player, is notified. Consequently, it is possible to cause the player to have a question as to what the notified time shortening period means. Therefore, it is possible to cause the player to have an interest in the question, which can make the player continuously have a willingness to participate in games.SELECTED DRAWING: Figure 49
Patent JP-2019205933-A (JP)
Title: Dilator
Inventor: FUSEYA YUKIHIRO
IPC: A61B17/34
Filed: 2019-09-12
Abstract: To provide a dilator capable of accurately grasping the completion point of expansion of the hole to the object when the expansion is completed.SOLUTION: A dilator 1 includes a hollow shaft 11 having a tapered portion 111 having the outer diameter of the tip smaller than the outer diameter of the base end and a main body portion 112 whose tip is positioned at a base end 111b of the tapered portion 111 and extended toward the base end side in the axial direction of the tapered portion 111. A spiral convex portion 21 is provided on an outer peripheral surface 111A of the tapered portion 111, the spiral convex portion 21 has a gap 21a along the axial direction of the shaft 11, and a base end 21b of the spiral convex portion 21 is positioned at the base end 111b of the tapered portion 111.SELECTED DRAWING: Figure 1
Patent JP-2020068653-A (JP)
Title: Electric contact device and rotating electric machine
Inventor: SHIMIZU SHINGO
IPC: H02K13/00
Filed: 2019-09-12
Abstract: To provide a technique capable of obtaining an effect of reducing electromagnetic noise generated during arc discharge in an electric contact device in a wide frequency band.SOLUTION: A rotating electric machine 1 includes an electric contact device 30 having a high-potential side contact and a low-potential side contact having mutually different electric potentials, and all of a plurality of commutator pieces 32 and two brushes 35 and 36 constituting the electric contact device 30 are composed of zinc as a low boiling material with a boiling point below 2562°C.SELECTED DRAWING: Figure 1
Patent JP-2021042182-A (JP)
Title: Stick type antiperspirant containing burnt alum particles
Inventor: KANI TOSHIYUKI
IPC: A61K8/26
Filed: 2019-09-13
Abstract: To provide a stick type antiperspirant that can ensure the same use feeling regardless of which portion is used from beginning to end.SOLUTION: The problem is solved by a stick type antiperspirant containing burnt alum particles. The burnt alum particles have a volume average diameter of 3.95 μm or less in particle size distribution.SELECTED DRAWING: Figure 1
Patent JP-2021046957-A (JP)
Title: Air-conditioning indoor unit and air conditioner
Inventor: FUJITA HIROKI
IPC: F24F13/20
Filed: 2019-09-17
Abstract: To provide an air-conditioning indoor unit capable of suppressing the separation of an air flow from first and second horizontal blades.SOLUTION: An air-conditioning indoor unit (1) includes a first horizontal blade (41), and a second horizontal blade (51) arranged nearer to a wall surface (W) than the first horizontal blade (41). It can operate in a first air flow control mode where a space between the first horizontal blade (41) and the second horizontal blade (51) is wider at the downstream side of the flow of blown air than at the upstream side of the flow of the blown air, so that the blown air flows obliquely downward on the opposite side to the wall surface (W) side, and part of the blown air flows along the lower blade surface of the first horizontal blade (41) and the other part of the blown air flows along the upper blade surface of the second horizontal blade (51). The lower blade surface of the first horizontal blade (41) includes a curved surface to be swollen, while the upper blade surface of the second horizontal blade (51) includes a curved surface to be swollen.SELECTED DRAWING: Figure 5
Patent JP-2021047595-A (JP)
Title: Paper sheet processor and paper sheet processing system
Inventor: SEKI ATSUSHI
IPC: G07D11/60
Filed: 2019-09-18
Abstract: To easily specify whether deficiency has occurred in paper sheets at any point along a conveyance path in the event that many paper sheets are inspected at a high speed.SOLUTION: A paper sheet processor includes: a conveyance path that conveys paper sheets; plural sensors that are disposed at different positions on the conveyance path and acquire identification numbers and images of the paper sheets passing through the conveyance path in association with each other; a control unit that determines whether deficiency of the paper sheets has occurred based on the images of the paper sheets acquired by the plural sensors; and a display unit that displays information. When it is determined that the deficiency of the paper sheets has occurred, the control unit displays on the display unit the images of the paper sheets having the same identification number as the identification number of the paper sheets, which are acquired by the plural sensors, together with correspondence information with the sensors that have acquired the images.SELECTED DRAWING: Figure 2
Patent JP-2021045474-A (JP)
Title: Blood purification device
Inventor: OTSUKA KOJI
IPC: A61M1/16
Filed: 2019-09-20
Abstract: To provide a blood purification device capable of accurately determining occlusion of a tube regardless of a use condition and use environment.SOLUTION: A blood purification device 1 comprises: a blood purifier 10; an artery side line 21; and a blood pump 212 being provided on the artery side line 21 for feeding blood. The blood purification device comprises: a load detection unit 66 being provided on an upstream side of the blood pump 212, for detecting load applied from a tube forming the artery side line 21; a reference value generation unit 511 for generating as an actual measurement reference value, a detection value detected by the load detection unit 66 in a state of stopping the blood pump 212 at a prescribed timing; a reference value update unit 512 for updating the reference value on the basis of a change quantity by time course of the detection value and the actual measurement reference value; and an occlusion determination unit 513 for determining that the tube is occluded when the detection value deviates from a prescribed determination range.SELECTED DRAWING: Figure 7
Patent JP-2021050564-A (JP)
Title: Auxiliary device for charging filling material
Inventor: IWATA HIDEKI
IPC: E02B3/06
Filed: 2019-09-26
Abstract: To save labor in a leveling work of a filling material.SOLUTION: A device body 12 inserted into an upper part of a charge position 5 to be installed comprises: an upper stage unit 14 charged with a filling material 10; and a lower stage unit 13 provided below the upper stage unit 14 so as to ascend/descend. The upper stage unit 14 is provided with a plurality of upper drop passages 35 through which the filling material 10 drops. The lower stage unit 13 is provided with lower drop passages 25, and lower horizontal members 24 closing the upper drop passage 35 with the lower stage unit 13 at an upper position. Thus, when installing the device body 12 in the charge position 5 corresponding to a target height and charging the filling material 10 onto the upper stage unit 14, the filling material 10 is charged in the charge position 5 through the upper drop passage 35 and the lower drop passage 25. After charging, by pulling up the lower stage unit 13 up to the upper position, the upper drop passage 35 is closed by the lower horizontal member 24. Then, by hanging the device body 12, surplus filling material 10 can be removed.SELECTED DRAWING: Figure 1
Patent JP-2021053951-A (JP)
Title: Method for bonding transparent resin by water plasma
Inventor: TERAI HIROKAZU
IPC: B81B1/00
Filed: 2019-09-30
Abstract: To provide a method that can bond the surface of a member whose surface is coated with parylene in a way that is not thermo-compression bonding or adhesive bonding.SOLUTION: A first member is fabricated by coating the surface of a PDMS substrate with parylene having a smooth flat part (Step S5, channel member), a second member is fabricated having a smooth flat part (Step S6, closure member), the flat part of the first member and the flat part of the second member are both treated with water plasma (H2O plasma) (Step S7), and then align the flat part of the first member and the flat part of the second member (Step S8) to bond the first and second members.SELECTED DRAWING: Figure 3
Patent JP-2021060433-A (JP)
Title: Optical connection device
Inventor: NAKAHARA MOTOHIRO
IPC: G02B6/32
Filed: 2019-10-02
Abstract: To provide an optical connection device capable of narrowing a waveguide interval of an optical circuit.SOLUTION: The present disclosure is an optical connection device which includes: a prism 30 for extracting an N×M light emitted from an optical circuit, a second dimensional GRIN lens array 10 in which a GRIN lens is arranged in an N×M; and a spacer 60 which has a thickness corresponding to an optical path length in the prism 30 and through which the N x M light emitted from the second dimensional GRIN lens array 10 transmits; and second dimensional fiber array 20 in which the end surface of an optical fiber is arranged at a focal point of each light transmitted through the spacer 60 and the N×M light is incident on each optical fiber 21.SELECTED DRAWING: Figure 7
Patent JP-2021059622-A (JP)
Title: Film, security card, passport, and method for producing film
Inventor: SUZUKI KENTARO
IPC: C08L67/03
Filed: 2019-10-03
Abstract: To provide a film containing a thermoplastic resin and a fibrous molding, in which an identification function can be sufficiently exhibited by the fibrous molding, and a security card, a passport, and a method for producing a film.SOLUTION: A film has (A) a thermoplastic resin and (B) a fibrous molding, the (B) fibrous molding containing a thermoplastic resin (b). When measured with a differential scanning calorimeter, the thermoplastic resin (b) shows at least one of a glass transition temperature T2[°C] and a melting point T3[°C]. When the temperature at which a melt viscosity of the (A) thermoplastic resin at a shear rate 1,216[1/s] is 500[Pa s], is defined as T1[°C], the temperature T1[°C], glass transition temperature T2[°C] and melting point T3[°C] satisfy at least one of the following formulae (1) and (2): (1) T2>T1-30 and (2) T3>T1+50.SELECTED DRAWING: Figure 1
Patent JP-2021060250-A (JP)
Title: Pressure sensor
Inventor: MUKAI GENTO
IPC: G01L19/06
Filed: 2019-10-04
Abstract: To provide a pressure sensor which can suppress the influence of noise even when placed under an external environment where static electricity tends to occur.SOLUTION: In the pressure sensor, a base is formed from an electro-conductive material, a neutralizing plate includes a first insulating member provided on top of the base and an electro-conductive layer formed on the surface of the first insulating member, the electro-conductive layer being not electrically connected to the base and maintained at the same potential as the ground of a wiring layer. A pressure detector comprises a second insulating member provided on top of the base, and a pressure detection element, the second insulating member being arranged between the pressure detection element and the base, and formula (1) ε1>ε2, and formula (2) ε1>ε3 hold true, where ε1 represents the dielectric constant of the first insulating member, ε2 represents the dielectric constant of the second insulating member, and ε3 represents the dielectric constant of an insulating medium.SELECTED DRAWING: Figure 1
Patent JP-2020059920-A (JP)
Title: Novel austenitic alloys for turbochargers
Inventor: GERALD SCHALL
IPC: F02B39/00
Filed: 2019-10-11
Abstract: To provide: an iron-based austenitic alloy that is suitable for a turbocharger housing, has excellent resistance to oxidation and thermal shocks, and can form casts with smoothness; and methods of preparing the same.SOLUTION: The alloy has the following composition: C of about 0.2 to about 0.6 wt.%, Cr of about 17 to about 25 wt.%, Mn of about 8 to about 13 wt.%, Ni of about 2 to about 6 wt.%, Si of about 0.5 to about 3 wt.%, Nb of about 0.2 to about 1 wt.%, V of about 0.2 to about 1 wt.%, and Mo of about 0.2 to about 1.5 wt.%; optionally one or more of the following elements in the following amounts, i.e., N of about 0.01 to about 0.6 wt.%, W of about 0.01 to about 3 wt.%, B of about 0.01 to about 0.1 wt.%, Cu of about 0.01 to about 0.5 wt.%, and Ce of about 0.01 to about 0.3 wt.%; optionally other elements (impurities) in a total amount of less than about 3 wt.%; and Fe as the balance. The preparation is performed by sand-casting with a specified casting temperature or the like, and subsequent thermal aging.SELECTED DRAWING: Figure 1
Patent JP-2021063450-A (JP)
Title: Catalyst temperature estimation device provided in exhaust passage of internal combustion engine, catalyst temperature estimation system provided in exhaust passage of internal combustion engine, data analysis device and control device for internal combustion engine
Inventor: HASHIMOTO YOSUKE
IPC: F01N3/08
Filed: 2019-10-11
Abstract: To solve a problem that there is a possibility that data might be output from an output layer of a mapping that has been learned through machine learning beyond an allowable data range.SOLUTION: A CPU acquires an acquisition value through acquisition processing (S10). The CPU inputs the acquisition value to a mapping and calculates a catalyst temperature Tcat (S14). When the catalyst temperature Tcat calculated in S14 exceeds an upper limit guard value UL (No in S18), the catalyst temperature Tcat is reset to a value identical to the upper limit guard value UL through guard processing. When the catalyst temperature Tcat calculated in S14 exceeds a lower limit guard value LL (No in S20), the catalyst temperature Tcat is reset to a value identical to the lower limit guard value LL through the guard processing (S24).SELECTED DRAWING: Figure 3
Patent JP-2021064239-A (JP)
Title: Trade support device, trade support method, trade support program and trade support system
Inventor: TSUCHIYA TAIHAKU
IPC: G06Q30/06
Filed: 2019-10-16
Abstract: To provide a trade support device, method, program and system for supporting fish landed at different fishing ports.SOLUTION: In a trade support system, a trade support device includes: a storage unit that stores relation data in which production place identification information, a selling fish species, and a sellable unit amount are associated with each other; an order information acquisition unit that acquires order information including order fish pieces and an order amount; a production selection unit that selects one or more pieces of production place identification information from a plurality of pieces of production place identification information so that with reference to the relation data, an aggregated order amount obtained by aggregating one or more sellable unit amounts corresponding to one or more pieces of production place identification information associated with the trade fish pieces corresponding to the order fish pieces included in the order information is equal to or greater than the order amount, and selects the selling fish pieces in each of the selected one or more pieces of production place identification information; and an order information creation unit that creates order information including the order amount determined so that the result obtained by aggregating the order amount for each of one or more production places of the selling fish pieces selected by the production place selection unit matches with the aggregated order amount.SELECTED DRAWING: Figure 2