Abstract: A lens unit including a lens group formed by aligning a plurality of lenses along an optical axis; and a lens barrel having a cylindrical shape and including an inner accommodation space for accommodating and holding the lens group, the lens group including a first lens located to be closest to an object side and a second lens adjacent to the first lens on an image side, the lens unit including an annular body that integrates the first lens and the second lens and that is fit to outer circumferences of the first lens and the second lens to cover a joint portion between the first lens and the second lens from an outside, and the annular body is fit to an inner circumferential surface of the lens barrel, and includes a seal portion for tightly sealing an inside of an inter-lens space.

Abstract: According to one embodiment, a magnetic disk device includes a magnetic disk and a magnetic head. The magnetic disk includes a data area on/from which data can be recorded/reproduced. The magnetic head records data on the data area and reproduces data from the data area. An outer edge of the data area includes first outer edge, second outer edge positioned on the further inner circumferential side of the magnetic disk relatively to the first outer edge, and third outer edges each connecting between the first outer edge and the second outer edge. The outer edge of the data area incudes concave parts made inwardly concave toward the inner circumferential side of the magnetic disk at not less than part thereof.

Abstract: Provided is an inertial sensor module having excellent detection accuracy. The inertial sensor module includes: a first sensor having a first axis, a second axis, and a third axis as detection axes; and a second sensor having accuracy higher than that of the first sensor and having the third axis as a detection axis. The first sensor and the second sensor are disposed on an inner bottom surface which is one plane in a package. The first sensor and the second sensor are sealed by the package in an airtight manner.

Abstract: According to one embodiment, a disk device includes a disk-shaped recording medium, a magnetic head including a write head, a read head, and a heater, and a controller including a reference signal generator outputting a reference signal having a constant voltage amplitude at the same frequency as a high-frequency component of a gap measurement signal recorded in the recording medium, a measurer measuring a component amplitude of a reproduced signal of the gap measurement signal and an amplitude of the reference signal, and a heater controller controlling a power value of heater power supplied to the heater based on the measured values of the component amplitude and the amplitude of the reference signal.

Abstract: According to one embodiment, a magnetic disk device includes a magnetic disk, a magnetic head that includes a write head configured to write data to the magnetic disk, a read head configured to read data from the magnetic disk, and a heater configured to adjust a flying height of the write head, and a controller that includes a first detection unit configured to detect the flying height of the write head, a second detection unit configured to detect a positioning error of the magnetic head with respect to a track of the magnetic disk, and a memory configured to store a first threshold and a second threshold.

Abstract: According to one embodiment, a disk device includes a disk-shaped recording medium, a magnetic head including a write head, a read head, and a heater, and a controller including a reference signal generator outputting a reference signal having a constant voltage amplitude at the same frequency as a high-frequency component of a gap measurement signal recorded in the recording medium, a measurer measuring a component amplitude of a reproduced signal of the gap measurement signal and an amplitude of the reference signal, and a heater controller controlling a power value of heater power supplied to the heater based on the measured values of the component amplitude and the amplitude of the reference signal.

Abstract: According to one embodiment, a disk device includes a rotatable magnetic disk, an actuator which supports and moves a head, a ramp which holds the head at an unloaded position, a motor which rotates the magnetic disk, and a controller which performs a load operation and a seek operation. When a radial travel speed of the head during the load operation is referred to as Vr1, a circumferential travel speed of the head is referred to as Vt1, a radial travel speed of the head during the seek operation is referred to as Vrs, and a circumferential travel speed is referred to as Vts, the controller controls at least one of the radial travel speed of the head and number of revolutions of the magnetic disk to satisfy a relationship (Vr1/Vt1)<(Vrs/Vts).

Abstract: An inertial measurement unit includes: a substrate; a sealing member; a first inertial sensor module including a first inertial sensor and a first package accommodating the first inertial sensor; and a second inertial sensor module including a second inertial sensor and a second package accommodating the second inertial sensor. A material of the first package includes a resin. A material of the second package is an inorganic material. The first inertial sensor module is accommodated in a space between the substrate and the sealing member and thus airtightly sealed therein. The second inertial sensor module is provided outside the space.

Abstract: Provided is a production method for a freshness-keeping bag capable of reducing the inflow of oxygen from the outside of the bag to a very low level, and thereby keeping the freshness of a content thereof for a long period of time.

Abstract: According to one embodiment, a disk device includes a rotatable magnetic disk, an actuator which supports and moves a head, a ramp which holds the head at an unloaded position, a motor which rotates the magnetic disk, and a controller which performs a load operation and a seek operation. When a radial travel speed of the head during the load operation is referred to as Vr1, a circumferential travel speed of the head is referred to as Vt1, a radial travel speed of the head during the seek operation is referred to as Vrs, and a circumferential travel speed is referred to as Vts, the controller controls at least one of the radial travel speed of the head and number of revolutions of the magnetic disk to satisfy a relationship (Vr1/Vt1)<(Vrs/Vts).

Abstract: A magnetic disk device of an embodiment includes: a head structure including at least one reproducing head and main magnetic pole gap installation portion behind a flying slider and including at least two thermal actuators; and a control unit that can independently control the thermal actuators and that sets spacing of the reproducing head and the main magnetic pole gap installation portion with respect to a recording medium by setting a rotational speed at the time of contact, which rotational speed is a rotational speed of the recording medium, to be lower than a normal rotational speed when the reproducing head and the main magnetic pole gap installation portion are brought into contact with the recording medium.

Abstract: An organic electroluminescent element which has a substrate, a pair of electrodes disposed on this substrate and composed of an anode and a cathode, and at least one organic layer disposed between these electrodes and including a light-emitting layer, and in which a compound expressed by General Formula 1-1 is contained in at least one layer of the aforementioned light-emitting layer(s) exhibits high luminous efficiency, excellent blue color purity, and little change in chromaticity accompanying drive deterioration.

Abstract: An ultrasonic probe has a transduction layer in which a plurality of transducers are placed, a backing layer provided at a rear side of the transduction layer with a wiring layer therebetween, and a plurality of heat dissipation members provided in the backing layer. The plurality of heat dissipation members extend in a line form in the backing layer, and are placed with an aligned direction of extension. An area occupancy percentage of the heat dissipation member at a center region of the backing layer is larger than that at an outer side of the center region. The center region is not positioned at ends of the cross section intersecting the direction of extension of the heat dissipation member, includes a center of gravity of the cross section, and occupies an area less than or equal to a half of an area of the cross section.

Abstract: An object of the present invention is to provide a polymerizable liquid crystal composition used for formation of an optically anisotropic film having excellent moisture-heat resistance and an excellent surface condition, an optically anisotropic film, an optical film, a polarizing plate, and an image display device. The polymerizable liquid crystal composition of an embodiment of the present invention is a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound and a compound represented by Formula (1): L1-SP1-(E3-A1)m-E1-G1-C(?O)—O—C(?O)-G2-E2-(A2-E4)n-SP2-L2, in which a content of the compound represented by Formula (1) is 0.01 to 5 parts by mass with respect to 100 parts by mass of the polymerizable liquid crystal compound.

Abstract: An organic electroluminescent element including a luminescent compound represented by the following formula (in which R1 to R14 each independently represent a hydrogen atom, a deuterium atom, an alkyl group, an aryl group, a heteroaryl group, a fluorine atom, a cyano group, an amino group, an alkoxy group, an aryloxy group, a thio group, or a silyl group, and 8 to 13 groups out of R1 to R14 each represent a hydrogen atom or a deuterium atom) in a light emitting layer has high durability and excellent chromaticity.

Abstract: An inertial measurement device includes: a first inertial sensor; a first inertial sensor module in which the first inertial sensor is stored in a first package made of resin; a base having a concave portion and made of ceramic; and a lid body. The first inertial sensor module is accommodated in an accommodation space between the base and the lid body and is hermetically sealed.

Abstract: An inertial measurement unit includes: a substrate; a sealing member; a first inertial sensor module including a first inertial sensor and a first package accommodating the first inertial sensor; and a second inertial sensor module including a second inertial sensor and a second package accommodating the second inertial sensor. A material of the first package includes a resin. A material of the second package is an inorganic material. The first inertial sensor module is accommodated in a space between the substrate and the sealing member and thus airtightly sealed therein. The second inertial sensor module is provided outside the space.

Abstract: A vehicle control device that controls a vehicle electric brake system includes: a shutdown determination part that determines whether the vehicle control device itself has been previously shut down normally or abnormally; a cranking determination part that determines whether an instruction to perform a cranking at a start-up of the vehicle is based on a manual operation of a driver of the vehicle or automatically; a diagnosis part that performs a plurality of initial diagnoses of the vehicle control device at the start-up of the vehicle; and a diagnosis skip control part configured to provide control such that the diagnosis part skips at least one of the initial diagnoses when the shutdown determination part determines that the vehicle control device has been previously shut down abnormally, and at the same time, when the cranking determination part determines that the cranking has been conducted based on the driver's manual operation.

Abstract: Provided is an inertial sensor module having excellent detection accuracy. The inertial sensor module includes: a first sensor having a first axis, a second axis, and a third axis as detection axes; and a second sensor having accuracy higher than that of the first sensor and having the third axis as a detection axis. The first sensor and the second sensor are disposed on an inner bottom surface which is one plane in a package. The first sensor and the second sensor are sealed by the package in an airtight manner.

Abstract: The disclosure relates to organic electroluminescent elements, compounds for use in the elements, and devices using the elements, which include a compound represented by the following General Formula (1): where R1 to R3 and R6 to R8 each independently represents a hydrogen atom, which may be a deuterium atom, or a substituent with a Hammett substituent constant ?p value of ?0.15 or more, R5, R9 and R10 each independently represents a hydrogen atom or a substituent, L1 represents a divalent linking group, DG1 represents a donor group, and n1 represents 1 or 2, and where R1 to R3, R5 to R10, L1, and DG1 are not bound to each other to form a ring.