Abstract: In a rotating electric machine, each phase of a plurality of three-phase windings is divided into a plurality of partial windings, disposed on a stator core. For example, the partial windings of the U-phase are distributively arranged on four U-phase winding areas 2U1 to 2U4, and on each of these winding areas, two partial windings overlap through a pair of slots between which two teeth are interposed. At each coincident location of a pair of slots, two partial windings of different three-phase windings overlap. For example, a pair of slots on the U-phase winding area 2U1, a partial winding UA1 of a U-phase winding UA and a partial winding UB3 of a U-phase winding UB overlap. At a pair of slots on the U-phase winding area 2U1, a partial winding UG2 of a U-phase winding UG and a partial winding UB2 of a U-phase winding UB overlap.

Abstract: A super resolution medium (1) is provided with an information signal region (11) where a content, such as a video or audio content, is recorded and a test read region (12) where reproduction setting value adjustment information is recorded for adjusting a setting value for reproduction. A shortest mark length on a first prepit row formed in the information signal region (11) is shorter than a length of an optical system resolution limit of a playback apparatus. The types of mark lengths, recorded in the test read region (12), on the second prepit row for adjusting the setting value are the same as part or all types of mark lengths on the first prepit row. Further, the second prepit row includes a prepit having a mark length shorter than the length of the optical system resolution limit of the payback apparatus. Still further, each of the first and second prepit rows has at least three types of mark lengths.

Abstract: A magnetic recording medium includes: tracks each including a magnetic recording section in which information is recorded and a non-magnetic-recording section in which no information is recorded; and nonmagnetic guide sections magnetically separating the tracks from one another. The non-magnetic-recording section is formed integrally with nonmagnetic guide sections. The magnetic recording medium includes at least one pair of a first region in which at least a portion of each of the respective non-magnetic-recording sections of first and second tracks and a portion of a magnetic recording section of a third track coincide with one another at a position along a direction in which the tracks extend; and a second region in which at least a portion of each of the respective non-magnetic-recording sections of the first and third tracks and a portion of a magnetic recording section of the second track coincide with one another at a position along the direction in which the tracks extend.

Abstract: In an optical information recording medium (1), a light-transmitting layer (10) or a transparent substrate, an information recording layer (20), and a substrate (30) are stacked in this order from a side from which reproducing light (2) enters. The information recording layer (20) includes at least a reproducing film (21) whose complex refractive index at a light source wavelength (?) of the reproducing light (2) is changed by heat. The relationship of 0.67×(?/NA)>TP>0.04×(?/NA) is satisfied, where TP is a track pitch of prepits (31) formed on the substrate (30), and NA is a numerical aperture of an objective lens (55) for converging the reproducing light (2) on the optical information recording medium.

Abstract: There is provided a storage layer (13) between storage layers (11), (15). The storage layer (13) produces a relatively large spherical aberration for a protection layer thickness error. Information is written to or read from the storage layer (13) with a beam of light having a second wavelength. Information is written to or read from the storage layers (11), (15) with a beam of light having a first wavelength (longer than the second wavelength). Accordingly, a multi-format optical storage medium is realized on which information can be recorded or reproduced with a single objective lens. Also, an optical pickup is realized which is capable of recording or reproducing information on the multi-format optical storage medium.

Abstract: An image display apparatus 100 that displays an image using a light modulated according to an image signal includes a projection optical system 90 that includes a projection lens 20, a first mirror 30 that reflects a light from the projection lens 20, and a second mirror 40 that widens an angle of a light from the first mirror 30 by reflecting the light, and projects the light modulated according to the image signal from an optical engine unit 10; a third mirror 50 that reflects a light from the projection optical system 90; and a screen 50 that transmits a light from the third mirror 50. The projection lens 20 and the second mirror 40 are arranged in such a manner that an optical axis of the projection lens 20 substantially matches an optical axis of the second mirror 40, and shift the light from the optical engine unit 10 to a specific side from the optical axis of the projection lens 20.

Abstract: An antenna device 1 has an antenna unit 2 which includes an antenna core member 5 including a soft magnetic member 51 having conductivity and a conductor member 6 which is attached to the antenna core member 5. At least part of the antenna core member 5 (for example, a core sheet 50A) is a sensor electrode which is able to detect an object. The sensor electrode is used as a sensor electrode such as a capacitance-operated sensor electrode. Thus, it is possible to provide an antenna device and a door handgrip apparatus having an antenna unit including an antenna core member which is shared for an antenna function and a sensor function.

Abstract: In order to provide a motor characterized by a high level of efficiency equal to or better than that of using the silicon steel plate, achieved by easy production method and reduced core loss, which result from reduction in the manpower for production by using the sintered metal or powdered iron core in at least one of the stator and rotor, the present invention provides a motor comprising a stator and a rotor wherein either one of said stator or rotor has a magnet, and the other has a magnetic substance. This motor is further characterized in that the main magnetic flux flowing between the stator and rotor changes in the three-dimensional directions according to the magnetic structure of this motor, and at least part of said magnetic substance is composed of an aggregate of magnetic powder.

Abstract: An optical disk includes a plurality of information units, each of which has a pit array made up of a phase pit on an information track and phase pits surrounding the phase pit. With this structure, information can be recorded at high density, and recorded information can be reproduced from the optical disk under stable conditions.

Abstract: Titanium-aluminum alloy is prepared as a master alloy, and the aluminum master alloy and a pure titanium material are melted by an electron beam to yield titanium alloy.

Abstract: In order to provide a motor characterized by a high level of efficiency equal to or better than that of using the silicon steel plate, achieved by easy production method and reduced core loss, which result from reduction in the manpower for production by using the sintered metal or powdered iron core in at least one of the stator and rotor, the present invention provides a motor comprising a stator and a rotor wherein either one of said stator or rotor has a magnet, and the other has a magnetic substance. This motor is further characterized in that the main magnetic flux flowing between the stator and rotor changes in the three-dimensional directions according to the magnetic structure of this motor, and at least part of said magnetic substance is composed of an aggregate of magnetic powder.

Abstract: An electric rotating machine having a stator including a stator core formed by accumulating and fixing a plurality of stator steel sheets, and stator coils mounted onto the stator core, a rotor having a rotation shaft received within an inner peripheral side of the stator, a molded resin frame for receiving the stator therein and a pair of end brackets for rotatably holding the rotation shaft of the rotor via bearings. A respective end bracket is fixed on opposite ends of the stator by through bolts inserted into through bolt holes formed therein, and each of the end brackets having a plurality of two kinds of bolt holes. Each of the stator steel sheets forming the stator core functions as a magnetic circuit, and corner portions thereof are formed with bolt holes in a semi-circular shape with an opening portion for receiving the through bolts.

Abstract: An electric rotating machine having a stator including a stator core formed by a plurality of stator steel sheets, and stator coils mounted onto the stator core, a rotor having a rotation shaft, a frame for receiving the stator therein, and a pair of end brackets for holding the rotation shaft of the rotor via bearings rotatably. The pair of end brackets is fixed on opposite ends of the stator by through bolts inserted into through bolt holes formed therein and each of the end brackets has a plurality of two kinds of bolt holes. Each of the stator steel sheets has a substantially constant width in a radial direction over an entire periphery thereof so as to function as a magnetic circuit, and corner portions are formed with through bolt holes. The frame is a molded frame of resin having lighter specific gravity than a specific gravity of steel.

Abstract: Titanium-aluminum alloy is prepared as a master alloy, and the aluminum master alloy and a pure titanium material are melted by an electron beam to yield titanium alloy.

Abstract: An electric rotating machine having a stator including a stator core formed by accumulating and fixing a plurality of stator steel sheets, and stator coils mounted onto the stator core, a rotor having a rotation shaft received within an inner peripheral side of the stator, a molded resin frame for receiving the stator therein and a pair of end brackets for rotatably holding the rotation shaft of the rotor via bearings. A respective end bracket is fixed on opposite ends of the stator by through bolts inserted into through bolt holes formed therein, and each of the end brackets having a plurality of two kinds of bolt holes. Each of the stator steel sheets forming the stator core functions as a magnetic circuit, and corner portions thereof are formed with bolt holes in a semi-circular shape with an opening portion for receiving the through bolts.

Abstract: An electric rotating machine having a stator including a stator core formed by a plurality of stator steel sheets, and stator coils mounted onto the stator core, a rotor having a rotation shaft, a frame for receiving the stator therein, and a pair of end brackets for holding the rotation shaft of the rotor via bearings rotatably. The pair of end brackets is fixed on opposite ends of the stator by through bolts inserted into through bolt holes formed therein and each of the end brackets has a plurality of two kinds of bolt holes. Each of the stator steel sheets has a substantially constant width in a radial direction over an entire periphery thereof so as to function as a magnetic circuit, and corner portions are formed with through bolt holes. The frame is a molded frame of resin having lighter specific gravity than a specific gravity of steel.

Abstract: An electric rotating machine includes a stator with a stator core formed of a plurality of stator steel sheets with corner portions having through bolt holes for receiving through bolts therein, and a rotor. A frame receives the stator with end brackets being fixed on ends of the stator by through bolts inserted into the through bolt holes thereof. Each of the end brackets includes bolt holes corresponding to the through bolt holes formed on the stator steel sheets and bolt holes for at least attaching the electric rotating machine outside. The frame is molded so that axes of symmetry extending between a rotation shaft of the rotor and the through bolt holes of the stator steel sheets and axes of symmetry extending between the bolt holes for attaching the electric rotating machine outside and the through bolt holes of the stator steel sheets are shifted by a predetermined angle.