Abstract: A method of manufacturing an optical coupler that includes: preparing a light-transmitting substrate having a first main surface and a second main surface aligned in a first direction; applying a first photosensitive glass paste containing a first filler to the first main surface; arranging a grayscale mask formed in a binary pattern on the second main surface; emitting an ultraviolet ray to the second main surface to expose the first photosensitive glass paste; removing the grayscale mask from the second main surface and developing the first photosensitive glass paste; and removing the light-transmitting substrate from the first photosensitive glass paste developed and curing the first photosensitive glass paste, wherein a longest length of the first filler is larger than a wavelength of the ultraviolet ray.

Abstract: In order to provide a novel human-derived monoclonal antibody that binds to a spike (S) protein of a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to neutralize SARS-CoV-2, an antigen-binding fragment thereof, and a pharmaceutical composition containing the antibody or the antigen-binding fragment thereof, the present invention provides: a human-derived monoclonal antibody against SARS-CoV-2, the antibody binding to the S protein of SARS-CoV-2 to neutralize viral activity of the S protein including an immune escape mutation; an antigen-binding fragment thereof; nucleic acids encoding the antibody and the antigen-binding fragment thereof; and a pharmaceutical composition for treating or preventing a SARS-CoV-2 coronavirus infectious disease, the pharmaceutical composition containing the antibody or the antigen-binding fragment thereof.

Abstract: Provided is a technique that enables voltages to be applied, with high precision, to an electrode layer for inhibition and removal of koge while suppressing increase in the size a substrate. A liquid ejection head substrate includes: electrothermal conversion elements that apply heat to a liquid; an upper electrode part in which a plurality of upper electrodes that protect the electrothermal conversion elements are formed at positions where the upper electrodes come into contact with the liquid; a counter electrode part which is provided to correspond to the upper electrode part and in which a plurality of counter electrodes are formed to be electrically connectable to the upper electrodes via the liquid; and a generation unit that generates a voltage to be applied to at least one of the upper electrode part and the counter electrode part.

Abstract: A driving assistance system includes a memory and a processor coupled to the memory. Based on use history data of a driving assistance function including positions at which the driving assistance function has been used at respective vehicles, which is collected from plural vehicles and stored in the memory, and based on position information indicating planned travel positions at which a specific vehicle is going to travel, the processor aggregates use frequencies of the driving assistance function at the planned travel positions of the plural vehicles, and, based on the aggregated use frequencies, the processor outputs information that suggests use of the driving assistance function at the specific vehicle.

Abstract: The game system includes a first acquisition unit that acquires vehicle information about a vehicle, and a first transmission unit that transmits the vehicle information acquired by the first acquisition unit to a personal terminal brought into the vehicle. A vehicle-mounted device mounted on the vehicle; a second acquisition unit that acquires the vehicle information transmitted from the first transmission unit; and the vehicle information acquired by the second acquisition unit, on the personal terminal and the personal terminal including a control unit that controls the progress of the game by using it as a parameter of the game that is being executed.

Abstract: The mobile device is provided with an operation restriction unit, and the operation restriction unit determines which seat of the vehicle is being operated from the captured image of the back camera. When determining that the captured image is captured by the driver's seat, the operation restriction unit restricts the operation of the process execution unit. Accordingly, in the mobile device, it is possible to prevent the mobile device from being operated in the driver's seat, which is appropriately restricted from being operated in the driver's seat in a vehicle or the like.

Abstract: A display control device includes a processor. The processor identifies an attraction target that guides a line of sight of an occupant, acquires the line of sight of the occupant, and causes a display unit attached to an eyeball of the occupant to display a guidance display that guides the line of sight of the occupant to the attraction target based on positional relationship between the line of sight of the occupant and the attraction target.

Abstract: A determination unit that determines whether a driver of a vehicle is dozing or looking away based on a state of the driver, a smart contact lens worn on an eyeball of the driver, and a display control unit that causes the smart contact lens to display a warning when the determination unit determines that the driver is dozing or looking away are provided.

Abstract: A display control device includes a processor. The processor identifies an attraction target that guides a line of sight of an occupant, acquires the line of sight of the occupant, and causes a display unit attached to an eyeball of the occupant to display a guidance display that guides the line of sight of the occupant to the attraction target based on positional relationship between the line of sight of the occupant and the attraction target.

Abstract: A determination unit that determines whether a driver of a vehicle is dozing or looking away based on a state of the driver, a smart contact lens worn on an eyeball of the driver, and a display control unit that causes the smart contact lens to display a warning when the determination unit determines that the driver is dozing or looking away are provided.

Abstract: A mold is fabricated with a cavity formed in an insulating layer formed so as to be placed on an upper surface of a conductive base material. This mold is disposed in an electrolyte bath to be applied with a voltage, and a metal is electrodeposited on the bottom surface of the cavity to electroform a metal-formed product in the cavity. In this electrodepositing process, when the width of the cavity is taken as W and a vertical height of a head space between an upper opening of the cavity and an upper surface of a metal layer is taken as H, the growth of the metal layer is stopped so that the height H of the head space left above the metal layer satisfies: where 300 ?m?W; H?W/3.75 where 200 ?m?W<300 ?m; H?W/4 where 100 ?m?W<200 ?m; and H?W/10 where W<100 ?m.

Abstract: A mold is fabricated with a cavity formed in an insulating layer formed so as to be placed on an upper surface of a conductive base material. This mold is disposed in an electrolyte bath to be applied with a voltage, and a metal is electrodeposited on the bottom surface of the cavity to electroform a metal-formed product in the cavity. In this electrodepositing process, when the width of the cavity is taken as W and a vertical height of a head space between an upper opening of the cavity and an upper surface of a metal layer is taken as H, the growth of the metal layer is stopped so that the height H of the head space left above the metal layer satisfies: H?W/2.85 where 300 ?m?W; H?W/3.75 where 200 ?m?W<300 ?m; H?W/4 where 100 ?m?W<200 ?m; and H?W/10 where W<100 ?m.

Abstract: According to one embodiment, a spindle motor includes a cylindrical body, a rotor, and a stator. The cylindrical body defines a cylindrical space having the center axis on the rotational axis. The rotor includes an annular body that is connected to one end of the cylindrical body and defines an opening of the cylindrical space. The stator closes the opening while rotatably supporting the rotor. The clearance is formed between the stator and the annular body throughout the circumference of the annular body. The clearance becomes narrower in a direction away from the cylindrical space.

Abstract: In a disclosed fluid dynamic bearing motor, and a disc drive employing the same, variations in motor performance due to a change in viscosity of a bearing fluid caused by a temperature change is canceled. The fluid dynamic bearing includes a sleeve with a shaft insertion hole in it. A shaft is rotatably inserted into the shaft insertion hole. A bearing fluid is disposed between an internal surface of the shaft insertion hole and the shaft. The shaft is formed of a material selected from a group consisting of steel, iron alloy material, aluminum alloy material, and copper alloy material. The sleeve is made of titanium material.

Abstract: A magnetic disk apparatus for reading and writing information to a magnetic disk including a motor for rotating the magnetic disk mounted thereon; a disk-shaped clamp for mounting the magnetic disk on the motor by screw fastening; and a C-shaped balancer for adjusting the rotary balance of the magnetic disk and mounted on the outer surrounding portion of the clamp, wherein the C-shaped balancer has a generally rectangular cross-section.

Abstract: A recording disk is mounted on a hub in a recording disk drive. The hub is mounted on a rotation shaft. The lower end of the rotation shaft is received on a thrust bearing. The packing is interposed between the enclosure and the thrust bearing. The packing serves to protect the inner space of the enclosure from dust. When the rotation shaft, the hub, the thrust bearing, and the like are assembled into the enclosure, an urging force is applied on the upper end of the rotation shaft. The thrust bearing urges the packing against the enclosure. Since the top surface of the hub is set lower than the top end of the rotation shaft, the urging force is reliably received on the rotation shaft. The alignment cannot be deteriorated between the rotation shaft and the hub.

Abstract: For a magnetic disk apparatus for reading and writing information to a magnetic disk in the present invention, the recessed portion of the cover of the magnetic disk apparatus has a two-level structure; the space between the inner surface of the recessed portion, corresponding to the region of the magnetic disk surface which the actuator arm does not traverse, and the surface of the magnetic disk is made as narrow as possible. The air flow generated in that space by the rotation of the magnetic disk is thereby suppressed and as a result, magnetic disk resonance is suppressed. Also, the noise level is further suppressed by having two layers of damping plates attached to the outer surface of the cover.

Abstract: A process of production of a compressor shoe superior in durability and reduced in manufacturing cost, wherein a process of quenching the shoe is performed in a vacuum, inert gas, or modified gas so as to prevent oxidation of the chrome and manganese of the surface of the material or the quenching process is performed after forming an antioxidation film on the surface of the material to prevent the oxidation of the chrome and manganese.

Abstract: For a magnetic disk apparatus for reading and writing information to a magnetic disk in the present invention, the recessed portion of the cover of the magnetic disk apparatus has a two-level structure; the space between the inner surface of the recessed portion, corresponding to the region of the magnetic disk surface which the actuator arm does not traverse, and the surface of the magnetic disk is made as narrow as possible. The air flow generated in that space by the rotation of the magnetic disk is thereby suppressed and as a result, magnetic disk resonance is suppressed. Also, the noise level is further suppressed by having two layers of damping plates attached to the outer surface of the cover.

Abstract: A cutting process S1 cuts a wire 1 into cut pieces each having a volume approximately equivalent to that of a desired shoe 11. A forging process S2 sequentially forges cut pieces 2 with forging dies 13, 23, and 33 having three cavities 13c, 23d, and 33e respectively, and obtains a steel sphere 8. A finishing process S3 obtains a shoe-shaped material 10 from the steel sphere 8 without a heat treatment, and carries out a heat treatment to the obtained material 10, thereby to obtain a shoe 11 for a compressor.