Abstract: A steel sheet to be subjected to complicated and difficult press forming is disclosed. The steel sheet includes a base steel sheet and a film disposed on at least one side of the base steel sheet. In the steel sheet, the film includes an organic resin and a wax, the arithmetic average roughness Ra of the base steel sheet is 0.4 ?m or more, the organic resin is at least one resin selected from acrylic resins, epoxy resins, urethane resins, phenolic resins, vinyl acetate resins, and polyester resins, the wax is a polyolefin wax with a melting point of 120° C. or above and 140° C. or below and an average particle size of 3.0 ?m or less, the fraction of the wax in the film is 10 mass % or more, and the standard deviation ? of the film coating weight distribution per side is less than 0.9 g/m2.

Abstract: The rotation angle calculation device includes: an acquisition unit that acquires detection results of a leakage flux generated by a permanent magnet, from each of three detection elements, the permanent magnet being included in a detection target of the rotation angle, the three detection elements being arranged at positions offset by 120 degrees from each other in electrical angle relative to the permanent magnet, a generation unit that generates orthogonal component signals, each of the orthogonal component signals representing one of two orthogonal components representing the strength of the leakage flux, based on the three detection results, and a calculation unit that calculates the rotation angle of the detection target based on the orthogonal component signals.

Abstract: Provided is a non-oriented electrical steel sheet with low high-frequency iron loss without addition of a large amount of alloying elements such as Cr, which causes a decrease in magnetic flux density, and without reduction of the sheet thickness, which causes a decrease in productivity. A non-oriented electrical steel sheet comprises a certain chemical composition containing 0.0005 mass % to 0.0050 mass % of Co, wherein at at least one surface of the non-oriented electrical steel sheet, an amount of N existing as AlN in a range from the surface to a depth of 1/20 of a sheet thickness is 0.003 mass % or less, and the surface has an oxide layer containing one or both of Al and Si and having a thickness of 10 nm or more and less than 80 nm.

Abstract: An organic resin-coated steel sheet is disclosed. The organic resin-coated steel sheet can be used as an automotive steel sheet. The organic resin-coated steel sheet has an organic resin coating film having an average coating weight per side after drying of 0.2 g/m2 or more and 2.0 g/m2 or less on at least one surface thereof. The area fraction of thin film portions in which the coating weight of the organic resin coating film is 0.14 g/m2 or less is 25.0% or less.

Abstract: A rotor includes a plurality of magnetic poles each of which has one slit formed in a rotor core. Each of the magnetic poles is divided into twelve equal areas between first and second circumferential ends thereof. Counting the twelve areas in order of proximity to the first circumferential end, the fourth to ninth areas are respectively defined as a first area, a second area, a third area, a fourth area, a fifth area and a sixth area. The slits of the magnetic poles include a first slit and a second slit. The first slit is arranged in the third area or the sixth area. The second slit is arranged in one of the first area, the second area, the third area, the fourth area, the fifth area and the sixth area.

Abstract: Provided is a non-oriented electrical steel sheet with low high-frequency iron loss without addition of a large amount of alloying elements such as Cr, which causes a decrease in magnetic flux density, and without reduction of the sheet thickness, which causes a decrease in productivity. A non-oriented electrical steel sheet comprises a certain chemical composition containing 0.0005 mass % to 0.0050 mass % of Co, wherein at at least one surface of the non-oriented electrical steel sheet, an amount of N existing as AlN in a range from the surface to a depth of 1/20 of a thickness of the non-oriented electrical steel sheet is 0.003 mass % or less, and the surface has an oxide layer containing one or both of Al and Si and having a thickness of 80 nm to 200 nm.

Abstract: A galvanized steel sheet to be subjected to complicated and difficult press forming is provided. A method for producing such a galvanized steel sheet is also provided. On a surface of a galvanized steel sheet having a metallic zinc layer with a coating weight of 5 g/m2 or more, a film is formed that contains 10 mass % or more of a polyolefin wax having a melting point of 120° C. or above and 140° C. or below and an average particle size of 3.0 ?m or less, and at least one organic resin selected from acrylic resins, epoxy resins, urethane resins, phenolic resins, vinyl acetate resins, and polyester resins, in such a way that the coating weight W (g/m2) of the film per side and the arithmetic average roughness Ra (?m) of the surface of the metallic zinc layer satisfy a relationship of W?0.12×Ra2+0.1.

Abstract: A steel sheet having a lubrication film that is to be subjected to complex forming in which press forming is difficult, and a method for manufacturing the steel sheet, are disclosed. The steel sheet has an organic resin coating film which has an indentation reduced Young's modulus of 20 GPa or higher and 50 GPa or lower and an indentation hardness of 0.5 GPa or higher and 1.5 GPa or lower or which has an indentation reduced Young's modulus of 10 GPa or higher and less than 20 GPa and an indentation hardness of 0.2 GPa or higher and 0.5 GPa or lower and which has a coating weight per side of 0.2 g/m2 or more and 2.0 g/m2 or less on a surface thereof.

Abstract: A lubricating film-coated steel sheet to be subjected to complicated forming is disclosed. The organic resin film contains an acrylic resin having a glass transition point (Tg) of 100° C. or higher and an acid value ratio R=acid value (mg-KOH/g)/Tg (° C.) of 1.50 or more, and 5 mass % or more of a polyolefin wax having a melting point of 100° C. or higher and 145° C. or lower and an average particle diameter of 3.0 ?m or less, and is formed on a surface of a steel sheet at a coating weight, W, of 0.3 g/m2 or more and 2.5 g/m2 or less per surface.

Abstract: A coating solution for coating a metal sheet to be subjected to complicated forming is disclosed. The coating solution contains an acrylic resin having a glass transition point (Tg) of 100° C. or higher and an acid value-to-glass transition point ratio R=acid value (mg-KOH/g)/Tg (° C.) of 1.50 or more, and a polyolefin wax having a melting point of 100° C. or higher and 145° C. or lower and an average particle diameter of 3.0 ?m or less and is applied to a metal sheet.

Abstract: A rotary electric machine includes a bus bar holder provided on one side of a stator in an axial direction, and a plurality of bus bar terminals that electrically connect the stator and a control unit. A lead wire is drawn out to a bus bar terminal side in an axial direction from a lead-out portion located on the bus bar terminal side among a plurality of windings provided all around a circumferential direction of the stator and between a plurality of adjacent windings. The bus bar terminal includes a winding side terminal portion having at least one connection part and a board side terminal portion connected to a board. The bus bar terminals are gathered in a part in the circumferential direction. The lead wire is wired so as to extend from one of the lead-out portions scattered all around the circumferential direction to one of the connection parts.

Abstract: A steel sheet having a film containing an organic resin and a wax on at least one surface of the steel sheet, in which the organic resin is at least one of an acryl-based resin, an epoxy-based resin, a urethane-based resin, a phenol-based resin, a vinyl acetate-based resin, and a polyester-based resin, in which the wax is a polyolefin wax having a melting temperature of 120° C. or higher and 140° C. or lower and an average particle size of 3.0 ?m or less, in which a proportion of the wax in the film is 10 mass % or more, and in which a coating weight per side W (g/m2) of the film and an arithmetic average roughness Ra (?m) of the steel sheet satisfy relational expression (1) below. W?0.12×Ra2+0.

Abstract: A motor includes a motor unit, a speed reduction mechanism, a motion conversion mechanism, and a housing. The motion conversion mechanism converts rotary motion of the speed reduction. mechanism into reciprocating rotary motion and transmits the motion to an output shaft. The speed reduction mechanism includes a worm, a first gear, and a second gear. The worm is disposed on a rotation shaft of the motor unit. The first gear transmits rotation of the worm and rotates about a first shaft. The second gear receives rotation of the first gear and rotates about a second shaft. The motion conversion mechanism includes a rotary member and a rod. The rotary member includes a sector gear and rotates about an axis of the first shaft. The rod couples the second gear and the rotary member. The output shaft includes an output gear that engages the sector gear.

Abstract: A motor includes a motor unit, a speed reduction mechanism, a motion conversion mechanism, and a housing. The motion conversion mechanism converts rotary motion of the speed reduction. mechanism into reciprocating rotary motion and transmits the motion to an output shaft. The speed reduction mechanism includes a worm, a first gear, and a second gear. The worm is disposed on a rotation shaft of the motor unit. The first gear transmits rotation of the worm and rotates about a first shaft. The second gear receives rotation of the first gear and rotates about a second shaft. The motion conversion mechanism includes a rotary member and a rod. The rotary member includes a sector gear and rotates about an axis of the first shaft. The rod couples the second gear and the rotary member. The output shaft includes an output gear that engages the sector gear.

Abstract: A vehicular wiper device includes a first wiper arm, a first drive source, a rocking mechanism, a second drive source, an extension and retraction mechanism, and a control unit. A first wiper blade for wiping a surface to be wiped of a vehicle is connected to the front end of the first wiper arm. The first drive source is directly or indirectly affixed to the vehicle body. The rocking mechanism is driven by the drive force of the first drive source and reciprocates and rocks the first wiper arm. The second drive source is directly or indirectly affixed to the vehicle body separately from the first drive source. The extension and retraction mechanism is driven by the drive force of the second drive source and extends and retracts the first wiper arm in the longitudinal direction thereof.

Abstract: A vehicular wiper device includes a first wiper arm, a first drive source, a rocking mechanism, a second drive source, an extension and retraction mechanism, and a control unit. A first wiper blade for wiping a surface to be wiped of a vehicle is connected to the front end of the first wiper arm. The first drive source is directly or indirectly affixed to the vehicle body. The rocking mechanism is driven by the drive force of the first drive source and reciprocates and rocks the first wiper arm. The second drive source is directly or indirectly affixed to the vehicle body separately from the first drive source. The extension and retraction mechanism is driven by the drive force of the second drive source and extends and retracts the first wiper arm in the longitudinal direction thereof.

Abstract: A stator for a rotating electric machine includes an annular stator core and a plurality of winding groups mounted on teeth of the stator core. Each of the winding groups is either a short-pitch winding group which consists of windings wound at a pitch shorter than 180° in electrical angle or a full-pitch winding group which consists of windings wound at a pitch equal to 180° in electrical angle. The winding groups include at least one short-pitch winding group pair which consists of two short-pitch winding groups that respectively belong to two different phases and are circumferentially adjacent to each other. The two short-pitch winding groups are arranged so as not to overlap each other in a radial direction of the stator core. There are no other winding groups interposed between the two short-pitch winding groups in the circumferential direction of the stator core.

Abstract: A shape optimization method of a plate-like member which has a concavo-convex shape and includes: identifying a bend stress point where a bend stress is higher in a mode where a specific load is applied to the plate-like member; identifying a bend axis from a distribution of stress vectors around the bend stress point; identifying, in an orthogonal surface to the bend axis, a pair of membrane stress points where a ratio of a membrane stress to a sum of the bend stress and the membrane stress is higher; calculating an offset variable which is a distance between a line segment connecting the pair of the membrane stress points and the bend stress point; and identifying a shape of the plate-like member so as to minimize the offset variable.

Abstract: An electric motor includes a rotor including magnetic poles whose number of pole pairs is P, P being a natural number, and a stator including windings. The stator includes (3/2)×P large teeth with a first pole pitch and (3/2)×P small teeth with a second pole pitch smaller than the first pole pitch. The large teeth and the small teeth are disposed so as to circumferentially alternate. The windings are wound concentratedly only on the large teeth. When the first pole pitch in electrical angle is X and the second pole pitch in electrical angle is Y, X is in a range from 144 to 180 degrees, and Y is equal to (240?X) degrees. The circumferentially adjacent windings are supplied with currents having a phase difference of 120 degrees in electrical angle therebetween, respectively.

Abstract: A motor has a plurality of permanent magnet pieces aligned is such a manner as to surround an armature core and a magnetic-flux guide ring disposed between the permanent magnet pieces and the armature core for introducing a magnetic flux from the permanent magnet pieces to the armature core. The magnetic-flux guide ring has a confronting portion confronting each of the magnet pieces, an aperture formed in the confronting portion, and a connecting portion connecting adjacent two confronting portions. The aperture is formed in such a manner as to confront a boundary of adjacent magnet pieces.