baber/WOPTO huggingface dataset:
Patent JP-2023035388-A (JP)
Title: Cleaning method and manufacturing method of silicon wafer
Inventor: FUJII KOTA
IPC: H01L21/304
Filed: 2021-09-01
Abstract: To provide a cleaning method capable of roughening the front and back surfaces or the back surface of a silicon wafer, and a manufacturing method of a silicon wafer, capable of achieving a silicon wafer, only one surface of which is roughened.SOLUTION: Provided is a cleaning method of a silicon wafer, in which the silicon wafer is roughened. The cleaning method includes; a step of preparing, as the silicon wafer, a silicon wafer that has no native oxide film and has an exposed bare surface; and a cleaning step of roughening the front and back surfaces or the back surface of the prepared silicon wafer by cleaning the silicon wafer with an aqueous solution that contains ammonium hydroxide and a hydrogen peroxide solution. An aqueous solution that has an etching selectivity of Si with respect to SiO2 of 95 or more and 1,100 or less is used in the cleaning step.SELECTED DRAWING: Figure 1
Patent JP-2023035481-A (JP)
Title: tool holder
Inventor: QIN TIAN CHI
IPC: B23B31/117
Filed: 2021-09-01
Abstract: To provide a tool holder which can be fixed to a tool and a machine tool easily without needing a complicated structure.SOLUTION: A tool holder includes: an insertion hole into which a tool may be inserted; and a coupling part which is coaxially arranged with the insertion hole and may be coupled to an inner diameter of a spindle of a machine tool. A first liquid pressure chamber is provided at the outer periphery side of the insertion hole and the tool is held by a first thin wall part which is deformed to the inner diameter side by a pressure being applied to a fluid enclosed in the first liquid pressure chamber. A second liquid pressure chamber is provided at the outer periphery side of the coupling part and the tool holder is fixed to the spindle by a second thin wall part which is deformed to the outer diameter side by a pressure being applied to a fluid enclosed in the second liquid pressure chamber. The first liquid pressure chamber and the second liquid pressure chamber are coupled in a manner that the fluid may circulate.SELECTED DRAWING: Figure 1
Patent JP-2023035606-A (JP)
Title: Vertical mold wafer boat
Inventor: OGITSU TAKESHI
IPC: H01L21/673
Filed: 2021-09-01
Abstract: To prevent a wafer product area from being affected even when a scratch is caused due to contact with a wafer supporting portion, and suppress a decrease in yield in a vertical mold wafer boat equipped with a plurality of wafer support portions for holding a silicon wafer having a chamfered portion (inclined surface) inclined at a predetermined angle with respect to the horizontal direction at its peripheral edge.SOLUTION: An inclined surface 2a1 inclined downward inward in the radial direction is formed on the upper surface of a wafer support portion 2a on which a silicon wafer W is placed, and the inclination angle θ1 of the inclined surface with respect to the horizontal direction is larger than the inclination angle θ2 with respect to the horizontal direction of a lower chamfered portion Wa of the silicon wafer peripheral portion by an angle of 5 degrees or more and 10 degrees or less.SELECTED DRAWING: Figure 2
Patent JP-2021184507-A (JP)
Title: Semiconductor device
Inventor: NAKAZAWA YASUTAKA
IPC: H01L29/786
Filed: 2021-09-06
Abstract: To provide a semiconductor device that has an oxide semiconductor film and a transistor of excellent electric characteristics.SOLUTION: A semiconductor device has a transistor. The transistor includes: a gate electrode; a first insulation film; an oxide semiconductor film; a source electrode; a drain electrode; and a second insulation film. Each of the source electrode and the drain electrode has a first conductive film, a second conductive film in contact with the first conductive film thereon, and a third conductive film in contact with the second conductive film thereon. The second conductive film has copper. The first conductive film and the third conductive film have a material for suppressing diffusion of copper. An end of the second conductive film has a region containing copper and silicon.SELECTED DRAWING: Figure 1
Patent JP-2021193458-A (JP)
Title: Virtual and augmented reality system and method
Inventor: CHENG HUI-CHUAN
IPC: G02B5/30
Filed: 2021-09-07
Abstract: To provide a suitable virtual and augmented reality system, and a method.SOLUTION: An imaging system includes a light source which is configured to generate a light beam. The system also includes first and second optical induction optical elements which has individual first and second incident parts and which are configured to propagate at least the individual first and second parts of the light beam by total internal reflection. The system further includes an optical distributor having an optical distributor incident part, a first emission part and a second emission part. The optical distributor is configured to orient the first and second parts of the light beam toward the first and second incident parts. The optical distributor incident part and the first emission part are matched with a first axis. The optical distributor incident part and the second emission part are matched with a second axis different from the first axis.SELECTED DRAWING: Figure 1
Patent JP-2023040754-A (JP)
Title: Working machine
Inventor: OKA KAZUTERU
IPC: B25F5/00
Filed: 2021-09-10
Abstract: To perform processing to a workpiece smoothly.SOLUTION: In an electric cutting machine 10, a set part 71 for setting a workpiece W is formed at a head plate 70 and the set part 71 is open to the outside of the head plate 70. The workpiece W is inserted from a set insertion part 71A of the set part 71 to a support groove part 71B to be supported by the head plate 70. A shutter 82 is movably provided at the head plate 70 and arranged at an open position where the set part 71 is open. When a set part opening/closing mechanism 80 operates in conjunction with movement of a blade 66 from an initial position, the shutter 82 moves from the open position to the closed position and the set insertion part 71A of the set part 71 is closed by the shutter 82. The structure allows the shutter 82 to inhibit foreign objects from entering the set part 71. Thus, cutting can be performed to the workpiece W smoothly.SELECTED DRAWING: Figure 1
Patent JP-2023041077-A (JP)
Title: Safety lighting device for attention attraction
Inventor: MIURA MASAKAZU
IPC: E01F9/669
Filed: 2021-09-11
Abstract: To provide a safety display lighting device for attention attraction capable of making an approaching vehicle recognize that the vehicle is working from as far as possible in working at night or in a dark place or working on a highway.SOLUTION: A safety display lighting device is provided with a flexible tubular body cover that is made of a material having light transmissivity, is a tubular body having a cross-sectional shape of a major arc, and has a gap space formed between an outer circumferential surface and an inner circumferential surface of the tubular body, and a flexible substrate inserted into the gap space and formed by providing wiring on a sheet-like substrate on which a plurality of LED elements are arranged at predetermined intervals is provided, and both ends of the cylindrical body cover are expanded to detachably fit a pipe in the cavity part of the cylindrical body.SELECTED DRAWING: Figure 1
Patent JP-2023041207-A (JP)
Title: Backlight structure for liquid crystal display device
Inventor: KURITA ATSUSHI
IPC: F21S2/00
Filed: 2021-09-13
Abstract: To provide backlight structure for a liquid crystal display device capable of providing a stable display even if environmental temperature varies.SOLUTION: Backlight structure for a liquid crystal display device comprises a flexible printed board 28 which has a projection part 28x having no electric wiring, a light guide plate 16 which has a part of a bottom surface nearby a light reception-side surface arranged on a principal part of the flexible printed board, and a case 14 which has an opening part in a region corresponding to the projection part of the flexible printed board, and further comprises a first adhesion member 34 which fixes the projection part of the bent flexible printed board to a case reverse surface while the projection part of the flexible printed board crosses the case at the opening part of the case, and is bent to sandwich the case from the reverse surface side, and a second adhesion member which has adhesion surfaces on both sides and fixes the light guide plate on the flexible printed board to the flexible printed board.SELECTED DRAWING: Figure 1
Patent JP-2023041463-A (JP)
Title: Two wire welding starting method and welding apparatus
Inventor: IGARASHI TOMOYA
IPC: B23K9/12
Filed: 2021-09-13
Abstract: To provide a two wire welding starting method and a welding apparatus which can sense contacting of a filler wire with an object to be welded to accurately control a timing of feeding the filler wire, without preparing a power source different from a welding power source.SOLUTION: A two wire welding starting method, which makes a welding wire advance in a welding direction while generating an arc between a weld wire of a consumable electrode and an object to be welded to form a weld pool, and supplies a filler wire to the weld pool from a rear side in the welding direction, feeds the filler wire toward the object to be welded, measures a load of feeding the filler wire, determines whether the filler wire contacts the object to be welded or not on the basis of the measured load of feeding, and when determining that the filler wire contacts the object to be welded, pulls back the filler wire from the object to be welded by a predetermined quantity, and feeds the filler wire to the object to be welded at a timing and a feeding speed which are in accordance with the predetermined quantity after starting firing of the arc.SELECTED DRAWING: Figure 4
Patent JP-2023041535-A (JP)
Title: Agent for improving texture of soft puffed food having inner layer and outer layer, texture holding agent, and method for producing soft puffed food
Inventor: YASUI SHINOBU
IPC: A21D2/18
Filed: 2021-09-13
Abstract: To provide a technique for a soft puffed food having an inner layer and an outer layer whereby it is possible to improve the soft and moist texture of the inner layer or it is possible to inhibit a degradation in the soft and moist texture of the inner layer over time, holding the favorable texture.SOLUTION: An agent for a soft puffed food having an inner layer and an outer layer whereby it is possible to improve the softness and/or moistness of the inner layer, comprises one or more reduced starch syrup selected from the following (a)-(d) as an active ingredient and is blended in the outer layer for use: (a) a reduced starch syrup having a saccharide composition consisting of monosaccharides of 30-50 mass%, disaccharides of 20-55 mass% and tri- or higher saccharides of 40 mass% or less, (b) reduced starch syrup having a saccharide composition consisting of monosaccharides of less than 30 mass% and penta- or higher saccharides of less than 50 mass%, (c) reduced starch syrup having a saccharide composition consisting of penta- or higher saccharides of 50 mass% or more, and (d) reduced starch syrup obtained by reducing a starch syrup with a dextrose equivalent of 10 or more to less than 100.SELECTED DRAWING: Figure 3
Patent JP-2021193603-A (JP)
Title: Disaster prevention system
Inventor: SUGIYAMA YASUNORI
IPC: G08B17/00
Filed: 2021-09-15
Abstract: To provide a disaster prevention system for enhancing reliability by securing the reliable operation of a preliminary substrate exchanged when a circuit board of a disaster prevention reception board gets out of order.SOLUTION: A disaster prevention system monitors an abnormality by connecting terminal devices such as fire detectors 16 to a disaster prevention reception board 10. The disaster prevention reception board 10 includes: a preliminary board test section 100 for confirming operations of a preliminary main section CPU board 54a, a preliminary sub-section CPU board 56a, and a preliminary section board 60a; and a preliminary board test section 102 for confirming operations of a preliminary main control CPU board and a preliminary sub-control CPU board.SELECTED DRAWING: Figure 2
Patent JP-2023042720-A (JP)
Title: Bathtub washing device
Inventor: KUBO TAKASHI
IPC: A47K3/00
Filed: 2021-09-15
Abstract: To provide a bathtub washing device that can safely discharge hot water of a water tank.SOLUTION: A bathtub washing device (10) includes: a hot water passage (14) which supplies hot water from a hot water apparatus (2) to a washing nozzle (5) arranged in a bathtub; a water tank (15) installed in the middle of the hot water passage (14); a pump (16) for sending hot water of the water tank (15) to the washing nozzle (5); and control means (20) for controlling bathtub washing operation which injects hot water and cleaning fluid from the washing nozzle (5) by driving the pump (16). The device has a temperature sensor (19) that detects a hot water temperature of the hot water passage (14). The control means (20), when the detected temperature of the temperature sensor (19) becomes a preset reference temperature or above during bathtub washing operation, stops the retention of hot water into the water tank (15). Then, the control means drives the pump (16) at a second target rotational number which is lower than a first target rotational number in the bathtub washing operation, with discharging operation performed by discharging the hot water of the water tank (15).SELECTED DRAWING: Figure 3
Patent JP-2023043615-A (JP)
Title: game machine
Inventor: OGURA TOSHIO
IPC: A63F7/02
Filed: 2021-09-16
Abstract: To provide a game machine with enhanced marketability.SOLUTION: A game machine includes performance control means and the like, can be controlled to be in a special state in which a variable display period is short, and displays a specific background image in a notification performance. At a time with the specific background image being displayed in the notification performance, a decoration identification information combination corresponding to said time, is the displayed. At a time with a normal background image being displayed upon completion of the notification performance, a decoration identification information combination corresponding to said time is displayed, and the specific image is displayed in a manner in which the specific image operates close to a numerical image of the decoration identification information combination. The specific image is not displayed in the special state. The special state includes a first special state that is controlled when an advantageous state is completed and a second special state that is controlled on the condition that variable display is executed a predetermined number of times. The number of variable display patterns in the second special state of variable display not controlled to be in the advantageous state is less than the number of the first special state, and the average period of a variable display period of the variable display pattern in the second special state of variable display not controlled to be in the advantageous state is shorter than the average period of the first special state.SELECTED DRAWING: Figure 11-50
Patent JP-2022000351-A (JP)
Title: Liquid droplet ejector
Inventor: GREGORY JOHN MCAVOY
IPC: B41J2/16
Filed: 2021-09-22
Abstract: To provide a piezoelectric liquid droplet ejector that is configured to reduce acoustic crosstalk between piezoelectric liquid droplet ejectors arranged adjacent to each other on a print head and secure the number of more nozzles.SOLUTION: A piezoelectric liquid droplet ejector comprises: a substrate having an attachment surface and a nozzle surface at the opposite side thereof; at least one electronic component integrated with the substrate; a nozzle formation layer formed on a least a portion of the nozzle surface of the substrate; a fluid chamber having a fluid chamber outlet defined by nozzle portions of at least some of nozzle formation layers; a piezoelectric actuator formed in at least a portion of the nozzle portions of the nozzle formation layers; and a protective layer covering the piezoelectric actuator and the nozzle formation layers. The piezoelectric actuator comprises a piezoelectric body provided between first and second electrodes. At least either of the first and second electrodes is electrically connected to at least one electronic component. The piezoelectric body includes one or a plurality of piezoelectric materials that can be processed at a temperature lower than 450°C.SELECTED DRAWING: Figure 2
Patent JP-2023046636-A (JP)
Title: Game medium transaction system
Inventor: OKUYAMA MOTOKI
IPC: G06Q30/06
Filed: 2021-09-24
Abstract: To protect a user's privacy while holding down processing costs in management of transaction recording of a game medium using a block chain technology.SOLUTION: A game system 1 includes: a game progress part 562 for progressing a game; a game medium management part for relating a game medium to a user in accordance with a transaction result of game media among multiple users; and a first recording part 235 for recording a transaction record of a game medium in a block chain. The first recording part 235 records a transaction record in a block chain by regarding that a game medium is traded between a first user and a final user related to the game medium in the multiple transactions when the transactions of the game medium are performed for multiple times.SELECTED DRAWING: Figure 4
Patent JP-2023050439-A (JP)
Title: Information processing device, information processing method and program
Inventor: SHUDO TAKAO
IPC: G06Q50/10
Filed: 2021-09-30
Abstract: To provide, with a comprehensive situation in which an object subjected to consulting is involved, information suitable for such an involved situation.SOLUTION: A server 10 calculates evaluation values of multiple items (seven items) by analyzing answers of an answerer for multiple questions, determines a cluster (user attribute) of the answerer on the basis of the combination of the calculated evaluation values of the multiple items, selects an evaluation result (advice information) to the answers by the answerer on the basis of the determined cluster of the answerer, and controls the output (display output) of the selected evaluation result.SELECTED DRAWING: Figure 11
Patent JP-2023051088-A (JP)
Title: Transmission control method, and information processor
Inventor: TAKIZAWA KENICHI
IPC: H04W72/0446
Filed: 2021-09-30
Abstract: To provide a transmission control method capable of preferably controlling the delay at a sending station that performs consecutive transmissions.SOLUTION: The transmission control method is a method of controlling multiple sending stations that are connected with a receiving station of the wireless communication partner in a manner of non-orthogonal multiple access manner. Each of the multiple sending stations is capable of sending the same signal to the receiving station predetermined successively times a predetermined period by consecutive transmission. An information processor executes the steps of: acquiring information that represents the codeword length used by each of the multiple sending stations for the consecutive transmission; and assigning the transmission power that ensures the required power difference between sending stations to each of the multiple sending stations so that the shorter the codeword length, the higher the transmission power.SELECTED DRAWING: Figure 8
Patent JP-2023053734-A (JP)
Title: Face type diagnosis device, face type diagnosis method, and program
Inventor: NISHI CHIE
IPC: G06T7/00
Filed: 2021-10-01
Abstract: To provide a face-type diagnosis device capable of improving the diagnostic accuracy of face type, and a face-type diagnosis method and program.SOLUTION: The face-type diagnosis device includes: an image acquisition unit that acquires a first image capturing a first facial expression of a user and a second image capturing a second facial expression of the user; a feature extraction unit that extracts first features of the face part of the user in the first image and second features of the face parts of the user in the second image; and a face-type determination unit that determines the face type of the user based on the first features and the second features.SELECTED DRAWING: Figure 6
Patent JP-2023056326-A (JP)
Title: Automobile
Inventor: HAMADA TAKAYUKI
IPC: B60W30/14
Filed: 2021-10-07
Abstract: To enable an automobile to travel in a further excellent travelling state.SOLUTION: A first fuel economy in a first travelling state in which a current vehicle speed, or a first vehicle speed, is set as a set vehicle speed onto a travelling scheduled route on which a vehicle is predicted to travel from a current place, and the vehicle travels while executing travelling support control by which a driving device is controlled so that the vehicle travels at the set vehicle speed when a precedent vehicle does not exist in a predetermined distance and the driving device is controlled so that the vehicle travels while following the precedent vehicle with a set inter-vehicle distance when the precedent vehicle exists in the predetermined distance, and a second fuel economy in a second travelling state in which the vehicle travels while executing travelling support control at a second vehicle speed which is different from the current vehicle speed are calculated, and reduction amounts of carbo dioxide based on the fuel economy at the time when the first travelling state is changed to the second travelling state on the basis of a difference between the first fuel economy and the second fuel economy are calculated and notified.SELECTED DRAWING: Figure 2
Patent JP-2023061657-A (JP)
Title: Bonded structure
Inventor: TAGUCHI YUSUKE
IPC: H01H3/12
Filed: 2021-10-20
Abstract: To reduce the concern of separation by application of load not intended by a user.SOLUTION: A bonded structure is a bonded structure formed from a first structural member with a frame-like structure and a second structural member bonded to the inside of the first structural member. The first structural member has a protrusion part formed with an anchor shape and the second structural member has a hole part in contact with the protrusion part which the first structural member has and the protrusion part has a stress concentration part on which stress concentrates when load is applied to the second structural member.SELECTED DRAWING: Figure 1
Patent JP-2023062726-A (JP)
Title: Compound type cylinder block
Inventor: SEKINE KANEKATSU
IPC: F02F1/00
Filed: 2021-10-22
Abstract: To decrease the weight of a compound type cylinder block 1 by providing a part of an oil falling hole on which hydraulic pressure does not act, in a synthetic resin outer member 3.SOLUTION: A compound type cylinder block 1 of an internal combustion engine, is composed of a metallic main block 2, and a synthetic resinous outer member 3, and is heat-welded on a joint surface orthogonal to a cylinder axis direction. The main block 2 includes a lower deck 11, a pedestal portion 12, and a cylinder wall 13. The outer member 3 includes an upper deck portion 41, and a water jacket structure wall 42. An oil falling hole upper half portion 58 is formed on the outer member 3 side, and an oil falling hole lower half portion 32 is formed on the main block 2 side.SELECTED DRAWING: Figure 11