Abstract: A printing method for printing a printing medium includes a non-white ink application step of applying an aqueous non-white ink composition containing a non-white coloring material onto the printing medium, and a white ink application step of applying an aqueous white ink composition containing a white coloring material onto the non-white ink composition on the printing medium to form a superimposed region. The non-white ink composition and the white ink composition each have an organic solvent content limited to 15% or less relative to the total mass of the corresponding ink composition. The mass ratio of the white ink composition to the non-white ink composition in the superimposed region is 1.5 or more in a portion to which the non-white ink composition is applied in an amount largest in the superimposed region.

Abstract: An ink jet recording method includes an ink attachment step of discharging an aqueous white color ink containing a white color material from an ink jet head onto a recording medium having a white color recording surface with glossiness of 30 or less at an L* value of 75 or more, and attaching the aqueous white color ink onto the recording medium, and a drying step of drying the recording medium onto which the aqueous white color ink is attached, in which a ratio of glossiness of an attachment portion of the aqueous white color ink to the white color recording surface after the drying is two times or more.

Abstract: A grinder according to one aspect of the present disclosure includes a motor, a housing for housing the motor, a spindle protruding from the housing and configured to be driven to be rotated by the motor, a wheel cover configured to cover a part of a tip end tool attached to the spindle, a detector configured to detect the wheel cover, and a controller configured to stop or restrict the spindle being driven by the motor in response to non-detection of the wheel cover by the detector.

Abstract: A work tool includes a spindle, a clamp shaft and at least one biasing part. The spindle is configured to be reciprocally rotated within a specified angle range around a driving axis. The spindle has a first inclined face inclined in a direction crossing the driving axis. The clamp shaft includes a shaft part and a head part. The shaft part is configured to be coaxially inserted into the spindle. The head part is formed on a lower end portion of the shaft part and configured to clamp the tool accessory in cooperation with the spindle while a second inclined face of the tool accessory is pressed against the first inclined face. The at least one biasing part is provided in the spindle and configured to always bias the tool accessory downward while the tool accessory is clamped by the head part and the spindle.

Abstract: A lane change estimation device includes a detection unit that detects a surrounding situation of an own-vehicle, a first index value deriving unit that derives a first index value according to a traveling-direction-related relationship between each of a plurality of pairs of vehicles, each pair including two vehicles among the own-vehicle, a first vehicle traveling in front of the own-vehicle in a first lane in which the own-vehicle travels, a second vehicle traveling in front of the own-vehicle in a second lane adjacent to the first lane, and a third vehicle traveling behind the second vehicle in the second lane on the basis of the surrounding situation of the own-vehicle, and an estimation unit that estimates a probability of lane change of the third vehicle on the basis of the first index value derived and a lateral position of the third vehicle.

Abstract: A work tool includes a housing, a spindle, a clamp shaft, a biasing member, an operation member, a motion-converting mechanism and a pushing-down member. The spindle is supported to be rotatable around a driving axis. The clamp shaft is movable in the up-down direction relative to the spindle. The biasing member is configured to bias the clamp shaft upward relative to the spindle so as to apply to the clamp shaft a clamping force for clamping a tool accessory between a head part of the clamp shaft and a lower end portion of the spindle. The motion-converting mechanism is configured to move the pushing-down member in the up-down direction along with turning of the operation member around the driving axis. The pushing-down member is configured to be moved downward so as to push the tool accessory downward when the operation member is turned in a first direction.

Abstract: A water-based inkjet ink composition comprising composite resin fine particles composed of a first resin and a second resin, and having an SP value of from 9.0 to 12.0 (cal/cm3)1/2, wherein the SP value of the second resin is higher than the SP value of the first resin, and the first resin has a higher mass than the second resin.

Abstract: A recording method includes heating a recording medium and attaching an ink composition including an organic solvent and water to the heated recording medium by performing a main scanning a plurality of times. In each main scanning the ink composition is ejected from a recording head while a position of the recording head relative to the recording medium in a main scanning direction is changed. In the ink composition, an absolute value of a difference between a surface tension of the ink composition and a surface tension of the ink composition when the ink composition is evaporated up to an evaporation amount of 0% to 40% by mass is 1 mN/m or less.

Abstract: An ink jet recording method includes an ink attachment step of discharging an aqueous white color ink containing a white color material from an ink jet head onto a recording medium having a white color recording surface with glossiness of 30 or less at an L* value of 75 or more, and attaching the aqueous white color ink onto the recording medium, and a drying step of drying the recording medium onto which the aqueous white color ink is attached, in which a ratio of glossiness of an attachment portion of the aqueous white color ink to the white color recording surface after the drying is two times or more.

Abstract: A recording method according to the invention includes adhering a reaction liquid which reacts with and aggregates components of an ink composition to a recording medium; adhering a first ink composition to the recording medium; and adhering a second ink composition having reactivity with the reaction liquid lower than that of the first ink composition to the recording medium. Adhesion of the second ink composition to the recording medium is performed prior to adhesion of the first ink composition to the recording medium.

Abstract: An ink jet printing method includes a printing step of performing a plurality of times of scanning performed by ejecting a treatment liquid and an ink composition from an ink jet head having treatment liquid nozzles and ink nozzles that is being transferred in a scanning direction, thus applying the treatment liquid and the ink composition onto a printing medium. The ink jet head has an arrangement of treatment liquid ejection nozzles that includes a coincident portion, and an arrangement of ink ejection nozzles that includes a coincident portion, and the coincident portions are coincident in position in the sub-scanning direction with each other.

Abstract: An ink jet printing method includes scanning a printing medium in a scanning direction a plurality of times with an ink jet head from which inks and a treatment liquid acting to flocculate constituents of the inks are ejected. The ink jet head includes first ink nozzles filled with a first ink and arranged in a sub-scanning direction, second ink nozzles filled with a second ink having a different composition from the first ink and arranged in the sub-scanning direction, and treatment liquid nozzles filled with the treatment liquid and arranged in the sub-scanning direction. At least some of the treatment liquid nozzles are coincident in the sub-scanning direction with the first and second ink nozzles. The first ink nozzles are closest to the treatment liquid nozzles in the scanning direction, and the first ink exhibits a viscosity increase by a factor of 6.0 or less.

Abstract: A passing gate determining device includes: an information acquirer configured to acquire information; and a gate selector configured to select a gate near a destination set in advance with priority at a tollgate in which a plurality of gates are disposed in parallel with each other on the basis of the information acquired by the information acquirer.

Abstract: A vehicle control device includes a mounting unit on which a medium storing authentication information for passing through a toll road is mountable, a detector which is configured to detect a state where the medium is mounted on the mounting unit or a state where the medium is not mounted on the mounting unit, and an automated driving controller which is configured to perform automated driving and change control details of the automated driving on the basis of detection results obtained by the detector, wherein the automated driving controller configured to determine whether to change a target gate or not on the basis of a relationship between a time when the mounting state detected by the detector is changed and a time when the vehicle is expected to arrive at the target gate or a relationship between a position of the vehicle at the time when the mounting state detected by the detector is changed and a position of the target gate.

Abstract: An ink jet recording method according to the present embodiment includes ejecting a water-based ink composition where a content of an organic solvent having a standard boiling point of 280° C. or more is 0.5% by mass or less from a head nozzle and attaching the water-based ink composition to a recording medium, in which a contact angle between at least a part of the surface of the member in contact with the water-based ink composition in the members in the head and the water-based ink composition is 30° or less, and the surface of the member in contact with the water-based ink composition is formed of a material having an SP value of 9 or less.

Abstract: A work tool includes a spindle, a clamp shaft, a holding member, an engagement member and a first biasing member. The holding member has a pass-through part. The engagement member is rotatable around a driving axis relative to the holding member between a first position in which the engagement member is allowed to pass through the pass-through part and a second position in which the engagement member is engaged with the holding member. The engagement member allows the clamp shaft to move in an up-down direction relative to the holding member when located in the first position, and to prevent the clamp shaft from moving downward relative to the holding member when located in the second position. The holding member is configured to fixedly hold the clamp shaft relative to the spindle while being biased upward by the first biasing member, with the engagement member in the second position.

Abstract: A vehicle control apparatus is a vehicle control apparatus includes a recognizer configured to recognize a vehicle A traveling in front of a host vehicle in a first lane in which the host vehicle travels, and a vehicle B traveling between the vehicle A and the host vehicle in a traveling direction in a second lane adjacent to the first lane, which are detected by a detector that detects a situation of a periphery of the host vehicle, an estimator configured to estimate a likelihood of changing lanes into the first lane by the vehicle B recognized by the recognizer, and a vehicle controller configured to control a speed of the host vehicle on the basis of a speed of the vehicle A and an estimation result of the estimator.

Abstract: A vehicle control system includes a vehicle selector configured to select, from among other vehicles present near an own vehicle, another vehicle that the own vehicle is to follow when traveling in front of a gate as a following target vehicle, and a gate passage controller configured to cause the own vehicle to travel following the following target vehicle selected by the vehicle selector when passing through the gate.

Abstract: A vehicle control device (1) includes an automated driving control unit (100) configured to execute automated driving of a vehicle and an acquisition unit (124) configured to acquire movement states in a running direction and a lateral direction of the vehicle. The automated driving control unit is configured to execute the automated driving such that the movement states which have been acquired by the acquisition unit before the automated driving has been started are maintained in a predetermined time or a predetermined distance when automated driving has been started by switching from manual driving.

Abstract: A vehicle control system includes: a static information acquirer that is configured to acquire static information that is static information relating to gates; a dynamic information acquirer that is configured to acquire dynamic information that is dynamic information relating to the gates; a selector that is configured to select a gate among a plurality of gates on the basis of the static information acquired by the static information acquirer and thereafter correct a selection result of gates on the basis of the dynamic information acquired by the dynamic information acquirer; and a gate passage controller that is configured to perform control of a vehicle such that the vehicle passes through the gate selected by the selector.