Abstract: A cutting tool according to this invention includes a cutting edge configured to cut a workpiece; a rake surface configured to come in contact with a chip, which appears when the workpiece is cut by the cutting edge; and a relieved surface configured to come in contact with a to-be-cut surface of the workpiece. A plurality of first grooves are formed on a cutting edge side of the rake surface. The plurality of first grooves includes a plurality of aligned grooves arranged adjacent to each other, and a connection groove connecting at least two of the plurality of aligned grooves to each other.

Abstract: A transfer member includes: an inner layer; and an outer layer that is adhered to the inner layer and has a hardness lower than a hardness of the inner layer.

Abstract: A transfer device includes a transfer drum that rotates in conjunction with a fixing roller, a transfer belt that transfers an image onto a medium while rotating along with the transfer drum in a state where the medium is nipped between the transfer belt and the transfer drum, a pressing member that is disposed in a space enclosed by the transfer belt, and a switching unit that moves the pressing member and switches between a pressed state in which the transfer belt is pressed against the transfer drum and a separated state in which the transfer belt is separated from the transfer drum.

Abstract: The laser welding device includes a laser transmission window and a gas injection nozzle. The gas injection nozzle includes an optical path hole and an injection unit that injects an inert gas for shielding metal vapor into the optical path hole toward an irradiation direction side and an optical axis side of a laser beam.

Abstract: A laser welding device includes a chamber which has an internal space in which a workpiece is disposed, a laser beam irradiation unit which irradiates the workpiece with a laser beam to weld the workpiece, a vacuum pump which suctions air in the chamber to decrease a pressure in the chamber, a laser transmission window through which the laser beam emitted from the laser beam irradiation unit is transmitted, and a shutter which is disposed on the chamber side with respect to the laser transmission window and closed when the pressure in the chamber is returned to the atmospheric pressure after laser welding.

Abstract: The present invention provides a method of immunologically detecting SARS-CoV-2, the method comprising detecting a SARS-CoV-2 N protein in a specimen taken from a subject by using the following antibodies (1) and (2): (1) a first antibody to a first epitope in a 306th to 339th amino acid region in the SARS-CoV-2 N protein, and (2) a second antibody to a second epitope in a 365th to 419th amino acid region in the SARS-CoV-2 N protein.

Abstract: The laser welding device includes a laser transmission window and a gas injection nozzle. The gas injection nozzle includes an optical path hole and an injection unit that injects an inert gas for shielding metal vapor into the optical path hole toward an irradiation direction (E) side and an optical axis (A) side of a laser beam (L).

Abstract: A laser welding device includes a chamber which has an internal space in which a workpiece is disposed, a laser beam irradiation unit which irradiates the workpiece with a laser beam to weld the workpiece, a vacuum pump which suctions air in the chamber to decrease a pressure in the chamber, a laser transmission window through which the laser beam emitted from the laser beam irradiation unit is transmitted, and a shutter which is disposed on the chamber side with respect to the laser transmission window and closed when the pressure in the chamber is returned to the atmospheric pressure after laser welding.

Abstract: This laser welding device includes a tubular portion. The tubular portion includes a first tubular portion and a second tubular portion. The second tubular portion has a constant cross-sectional shape orthogonal to an irradiation direction along the irradiation direction E. The tubular portion has a predetermined length that is longer than a length of a chamber in the irradiation direction.

Abstract: An electrostatic chuck includes a dielectric layer and a conductive layer located inside the dielectric layer. The dielectric layer includes an upper surface and a plurality of protrusions protruding from the upper surface. Each of the protrusions includes a top portion that serves as an attraction surface on which a substrate is attracted. The dielectric layer includes a plurality of first dielectric portions and a second dielectric portion. The second dielectric portion surrounds each of the first dielectric portions in the upper surface of the dielectric layer. At least some of the first dielectric portions include the protrusions and are bonded to the conductive layer. Each of the first dielectric portions is formed from a material that differs from that of the second dielectric portion.

Abstract: Respective outer peripheral surfaces (33, 35) of opening-side end portions (30, 31) of a front cover (12) and a pump shell (7), which have been shaped by pressing, are formed by slimming such that the outside diameters of the slimmed outer peripheral surfaces are equal to each other. With the opening-side end portions abutting against each other, a high-energy beam such as a laser beam (R) is radiated toward the abutment surfaces (30, 31) from the radially outer side to weld the abutment surfaces to each other. Consequently, it is possible to perform welding accurately through easy processing in order to easily manufacture a fluid coupling with high precision that facilitates post-processing.

Abstract: An electrostatic chuck includes a dielectric layer and a conductive layer located inside the dielectric layer. The dielectric layer includes an upper surface and a plurality of protrusions protruding from the upper surface. Each of the protrusions includes a top portion that serves as an attraction surface on which a substrate is attracted. The dielectric layer includes a plurality of first dielectric portions and a second dielectric portion. The second dielectric portion surrounds each of the first dielectric portions in the upper surface of the dielectric layer. At least some of the first dielectric portions include the protrusions and are bonded to the conductive layer. Each of the first dielectric portions is formed from a material that differs from that of the second dielectric portion.

Abstract: An electrostatic chuck includes a mount base. The mount base includes a base body and an electrostatic electrode, which is located in the base body. The base body is formed from a ceramic that contains aluminum oxide, which serves as a main component, yttrium oxide, magnesium oxide, and calcium oxide. A content percentage of the calcium oxide is 0.4 wt % to 0.6 wt %.

Abstract: Respective outer peripheral surfaces (33, 35) of opening-side end portions (30, 31) of a front cover (12) and a pump shell (7), which have been shaped by pressing, are formed by slimming such that the outside diameters of the slimmed outer peripheral surfaces are equal to each other. With the opening-side end portions abutting against each other, a high-energy beam such as a laser beam (R) is radiated toward the abutment surfaces (30, 31) from the radially outer side to weld the abutment surfaces to each other. Consequently, it is possible to perform welding accurately through easy processing in order to easily manufacture a fluid coupling with high precision that facilitates post-processing.

Abstract: An electrostatic chuck includes a placing stage formed from a ceramic including aluminum oxide and yttrium oxide, and an electrostatic electrode arranged in the placing stage, wherein a content rate of the yttrium oxide is 0.5 wt % to 2.0 wt %. Preferably, the electrostatic chuck is used while being heated at a temperature of 100° C. to 200° C.

Abstract: An electrostatic chuck includes a placing stage formed from a ceramic including aluminum oxide and yttrium oxide, and an electrostatic electrode arranged in the placing stage, wherein a content rate of the yttrium oxide is 0.5 wt % to 2.0 wt %. Preferably, the electrostatic chuck is used while being heated at a temperature of 100° C. to 200° C.

Abstract: A method of setting a parameter in a method of detecting a decreased tire air pressure for detecting a decreased tire air pressure based on a wheel rotational speed obtained from tires attached to a four-wheel driving vehicle. The method includes a vehicle model preparation step of preparing a vehicle model including a suspension member; a tire model preparation step of preparing a tire model; a step of inputting a friction coefficient between a tire and a road surface; and a simulation step of performing a running simulation of the vehicle model attached with the tire model. A determination parameter for determining whether the tire has a decreased air pressure or not is set based on wheel rotational speeds of the tires of the respective four wheels obtained in the simulation step.

Abstract: The method includes: a step of calculating wheel rotation information; a judgment step of judging a decrease in a tire air pressure by comparing a predetermined reference value with a decreased pressure judgment value showing a wheel speed ratio of the front and rear axes; an initialization step of storing the wheel speed ratio between the front and rear axes at the regular internal pressure; and a step of determining whether the distribution of the front and rear driving torque is equidistribution or not.

Abstract: It is the purpose of the present invention to provide a method, apparatus and program for alarming decrease in tire air-pressure capable of precisely detecting decrease in tire air-pressure even during turning round a corner with a large bank angle.

Abstract: A method of setting a parameter in a method of detecting a decreased tire air pressure for detecting a decreased tire air pressure based on a wheel rotational speed obtained from tires attached to a four-wheel driving vehicle. The method includes a vehicle model preparation step of preparing a vehicle model including a suspension member; a tire model preparation step of preparing a tire model; a step of inputting a friction coefficient between a tire and a road surface; and a simulation step of performing a running simulation of the vehicle model attached with the tire model. A determination parameter for determining whether the tire has a decreased air pressure or not is set based on wheel rotational speeds of the tires of the respective four wheels obtained in the simulation step.