Abstract: An optical system (LS) includes lenses (L22,L23) satisfying the following conditional expressions, ndLZ+(0.01425×?dLZ)<2.12, and ?dLZ<35.0, where ndLZ: a refractive index of the lens with reference to d-line, and ?dLZ: Abbe number of the lens with reference to d-line.

Abstract: A current sensor includes a wiring board, a shield, an insulating sensor housing, and a shield adhesive. The wiring board and the shield are accommodated in the sensor housing. The sensor housing has a shield support part to support the shield, and a shield adhesion part. An application surface of the shield adhesion part is further from the shield than a contact surface of the shield support part. The shield is mounted on the contact surface of the shield support part, and the shield adhesive is disposed between the application surface of the shield adhesion part and the shield. The shield and the wiring board are aligned with and spaced from each other in the sensor housing.

Abstract: A method for manufacturing a light-emitting element includes providing the light-emitting element that includes a light-emitting layer with an emission wavelength of not more than 306 nm and a p-type layer including AlGaInN including Mg as an acceptor, and removing hydrogen in the p-type layer from the light-emitting element by irradiating the light-emitting element with ultraviolet light at a wavelength of not more than 306 nm from outside and treating the light-emitting element with heat in a state in which a reverse voltage, or a forward voltage lower than a threshold voltage of the light-emitting element, or no voltage is applied to the light-emitting element. The removing of hydrogen in the p-type layer from the light-emitting element is performed in a N2 atmosphere at not less than 650° C. or in a N2+O2 atmosphere at not less than 500° C.

Abstract: A holding part of a welding gun holds a held part that is provided to an arm having resistance welding electrodes. A first facing part and second facing part of the holding part face each other with the held part therebetween, so as to form a layered part. A connecting part fixes the relative positions of the first facing part and the second facing part. A collar is inserted into a through hole of the first facing part so as to be movable in the layering direction. When a pressing mechanism presses the second facing part, the held part, and the collar in the layering direction, the held part is sandwiched between the second facing part and the collar.

Abstract: Provided are a stud supply device and a stud supply method with which a stud can be supplied to a welding electrode in the correct orientation. The stud supply device comprises: a magazine in which a predetermined number of studs can be aligned and stored in series inside a magazine hole from a stop part to one end side; switching mechanisms having a plurality of balls that can move between a position contacting the studs and a position not contacting the studs, and a reciprocating member that restricts the movement of the plurality of balls, the switching mechanisms switching between a state in which the studs are stopped at the stop part and a state in which the studs are allowed to pass; and a first air injection part that is provided more on the one end side than the stop part, and that injects air from the one end side to the stud stopped at the stop part.

Abstract: Provided are a projection welding device and an electrode cleaning method for the same with which it is possible to keep a stud holding hole formed in a welding electrode clean. A projection welding device welds a stud to a workpiece by holding the stud using a second electrode, bringing the stud into contact with the workpiece, and causing a welding current to flow through the second electrode, wherein the second electrode includes a stud holding hole which extends from a cap opening formed in the distal end, to a bottom portion formed on the base end side, and at least one lateral hole which extends from a side wall opening formed in a side wall to the bottom portion, and the projection welding device is provided with a stud supply device which ejects air into the stud holding hole from the cap opening of the second electrode.

Abstract: A component filling device and a component filling method are provided which, with a configuration that does not involve contact with the workpiece during a stud gun welding operation, can fill a component supply device with a prescribed number of components from a component feeding device. The component filling device (a stud filling device) is provided with: a component storage unit (a tube) which, inside of a component storage hole (the tube hole), can store a prescribed number of components (studs) aligned from a stopping unit towards the top; and a switching mechanism which comprises multiple moving bodies (balls), which can move between a position contacting a component and a position not contacting the component, and a lock unit (a rotation member), which restricts the moving bodies from moving, wherein the switching mechanism can switch between a state in which the stopping unit stops the components and a state in which the components are allowed to pass.

Abstract: Provided is a cancer treatment or prevention technique that molecularly targets GD2. A GD2-binding molecule includes a heavy-chain variable region containing a heavy-chain CDR1 containing the amino acid sequence represented by SEQ ID NO: 1, a heavy-chain CDR2 containing the amino acid sequence represented by SEQ ID NO: 2, and a heavy-chain CDR3 containing the amino acid sequence represented by SEQ ID NO: 3, and/or a light-chain variable region containing a light-chain CDR1 containing the amino acid sequence represented by SEQ ID NO: 9, a light-chain CDR2 containing the amino acid sequence represented by SEQ ID NO: 10, and a light-chain CDR3 containing the amino acid sequence represented by SEQ ID NO: 11.

Abstract: A novel antigen receptor is provided. An antigen receptor contains a GITRL domain at a position closer to the C-terminus via a self-cleaving peptide domain.

Abstract: A method for manufacturing a light-emitting element includes providing the light-emitting element that includes a light-emitting layer with an emission wavelength of not more than 306 nm and a p-type layer including AlGaInN including Mg as an acceptor, and removing hydrogen in the p-type layer from the light-emitting element by irradiating the light-emitting element with ultraviolet light at a wavelength of not more than 306 nm from outside and treating the light-emitting element with heat in a state in which a reverse voltage, or a forward voltage lower than a threshold voltage of the light-emitting element, or no voltage is applied to the light-emitting element. The removing of hydrogen in the p-type layer from the light-emitting element is performed in a N2 atmosphere at not less than 650° C. or in a N2+O2 atmosphere at not less than 500° C.

Abstract: A welding gun includes a proximity restricting mechanism that is provided between a shaft and a cover member in a manner to surround the shaft and to be displaceable relative to the shaft in an axial direction in accordance with expansion and contraction of the cover member, and that restricts the cover member from approaching too closely the shaft.

Abstract: A welding gun includes: a moving mechanism portion (ball screw mechanism) for moving a movable electrode back and forth; a motor that includes a rotor and drives the moving mechanism portion to move the movable electrode back and forth; and a brake mechanism that prevents rotation of the rotor during a braking operation, wherein the brake mechanism includes an annular brake disc that is attached to an outer peripheral surface of the rotor and rotates integrally with the rotor, and a clamping portion that prevents rotation of the brake disc by clamping the brake disc during the braking operation.

Abstract: Provided is a seam welding device capable of seam welding various shapes of objects to be welded. A seam welding device which performs seam welding by causing electricity to be conducted between a first electrode wheel and a second electrode wheel comprises a first motor which drives the first electrode wheel, a second motor which drives the second electrode wheel, and a first belt provided between the first electrode wheel and the first motor. If a direction joining the axes of the first electrode wheel and the second electrode wheel is defined as a vertical direction, the direction from the first electrode wheel toward the second electrode wheel is upward, and the direction from the second electrode wheel toward the first electrode wheel is downward, then the first motor is disposed further upward than a point of contact of the first electrode wheel and the second electrode wheel.

Abstract: In the present invention, while a welding current is applied with respect to a laminate body comprising thick metal plates and thin metal plates, a first welding pressure (F1) with respect to the laminate body from an upper tip contacting the metal plate and a second welding pressure (F2) with respect to the laminate body from a lower tip contacting the metal plate are changed relative to each other. Specifically, F1<F2 in a first step which is an initial period of welding, F1=F2 in a second step which is an intermediate period of welding, and F1>F2 in a third step which is a final period of welding.

Abstract: A welding gun includes a proximity restricting mechanism that is provided between a shaft and a cover member in a manner to surround the shaft and to be displaceable relative to the shaft in an axial direction in accordance with expansion and contraction of the cover member, and that restricts the cover member from approaching too closely the shaft.

Abstract: An electrode moving mechanism of a welding gun includes a first mechanism portion that has a shaft, a second mechanism portion that has a housing capable of housing at least a portion of the shaft, and supports the shaft in a manner to be relatively movable in an axial direction, and a cover member that covers at least a portion of the shaft and is capable of expanding and contracting in accordance with relative displacement between the first mechanism portion and the second mechanism portion, wherein a communication path is formed that enables communication between an internal space, which is between the shaft and the cover member, and an internal space of the housing.

Abstract: A welding gun includes: a moving mechanism portion (ball screw mechanism) for moving a movable electrode back and forth; a motor that includes a rotor and drives the moving mechanism portion to move the movable electrode back and forth; and a brake mechanism that prevents rotation of the rotor during a braking operation, wherein the brake mechanism includes an annular brake disc that is attached to an outer peripheral surface of the rotor and rotates integrally with the rotor, and a clamping portion that prevents rotation of the brake disc by clamping the brake disc during the braking operation.

Abstract: Provided is a seam welding device capable of seam welding various shapes of objects to be welded. A seam welding device which performs seam welding by causing electricity to be conducted between a first electrode wheel and a second electrode wheel comprises a first motor which drives the first electrode wheel, a second motor which drives the second electrode wheel, and a first belt provided between the first electrode wheel and the first motor. If a direction joining the axes of the first electrode wheel and the second electrode wheel is defined as a vertical direction, the direction from the first electrode wheel toward the second electrode wheel is upward, and the direction from the second electrode wheel toward the first electrode wheel is downward, then the first motor is disposed further upward than a point of contact of the first electrode wheel and the second electrode wheel.

Abstract: To provide a welding gun capable of improving the durability by effectively bearing the load in the thrust direction, and capable of providing a heavyweight and large-sized movable gun arm, even in a small-sized main body unit. A welding gun 10 of a guide groove type is provided with a thrust direction guide mechanism including: two guide pins 19a and 19b provided to an arm holder 13 in an integrated manner by penetrating first and second guide grooves 17a and 17b; brackets 23a and 23b being fixedly provided to the end portions of the guide pins 19a and 19b, and having a length sufficient to traverse the first and second guide grooves 17a and 17b in a direction orthogonal to the axis line of the guide pins 19a and 19b; and thrust bearing members 24a and 24b being provided to the end portions of the brackets 23a and 23b, abutting on a side plate 11a of a gun body 11, so as to be movable along the first and second guide grooves 17a and 17b.

Abstract: A welding gun equipped with a retaining unit, which includes a first retaining member and a second retaining member, and retains a stationary gun arm and a movable gun arm. A retaining hole for retaining the stationary gun arm, guide grooves for insertion of rolling members provided on an arm holder that retains the movable gun arm, connecting member insertion holes into which connecting members connecting the first retaining member and the second retaining member are inserted, and a retained member insertion hole for inserting a retained member retained by a moving member that moves the retaining unit to a welding operation location, are formed in the first retaining member and the second retaining member, and the regions where these components are formed are set as thick-walled regions having a greater thickness than other regions. Thus, adequate rigidity is ensured while avoiding an increase in weight.