Abstract: A cutting tool includes a cutting insert having a cutting edge; a holder holding the cutting insert; a sensor provided in the holder; and an information communication circuitry that is provided in the holder, transmits an inquiry for parameter information related to measurement by the sensor to a management device provided outside the cutting tool, and acquires the parameter information from the management device.

Abstract: An optical apparatus includes a light emitting apparatus and a host apparatus. The light emitting apparatus includes a housing extending in a first direction, a light emitting device mounted in the housing, an optical connector including a first optical connection part provided at one end of the housing, and an electrical connector including a first electrical connection part provided at one end of the housing and receiving a voltage to drive the light emitting device. The host apparatus includes a host optical connector including a second optical connection part which faces the first optical connection part and is optically coupled thereto, a host electrical connector including a second electrical connection part facing the first electrical connection part and being electrically connected to the first electrical connection part, and a host board mounting the host optical connector and the host electrical connector thereon.

Abstract: An optical module includes a light-forming unit configured to form light, and a protective member surrounding and sealing the light-forming unit. The light-forming unit includes a laser diode, a first MEMS including a first mirror having a first reflective surface that reflects and scans light from the laser diode, the first mirror oscillating to form a first plane, and a second MEMS including a second mirror having a second reflective surface that reflects and scans light from the first mirror, the second mirror oscillating to form a second plane orthogonal to the first plane.

Abstract: A cutting tool including a rake face and a flank face includes: a substrate; and a coating film disposed on the substrate, wherein the coating film includes an Al2O3 layer, residual stress of the Al2O3 layer has a minimum value Rmin at at least a portion of a region d1 of the rake face, the minimum value Rmin is more than ?0.27 GPa and less than or equal to ?0.1 GPa.

Abstract: A semiconductor optical device in which a light emitting region that emits light and a reflecting region that reflects the light to the light emitting region side are integrated includes a core layer that is provided in the light emitting region, and a waveguide layer that is provided in the reflecting region, that is optically coupled to the core layer, and that has a band gap that is larger than energy of the light. The reflecting region has a first thyristor that overlaps the waveguide layer in a direction that intersects a propagation direction of the light.

Abstract: In a power supply control device, an upstream switch and a downstream switch are respectively disposed upstream and downstream of a load in a current path for a current flowing through the load. One end of a first resistor is connected to a connection node between the upstream switch and the load. One end of a series circuit including a connection switch and a second resistor is connected to a connection node between the load and the downstream switch. A constant voltage is applied to the other end of the series circuit. A microcomputer detects any failure of the upstream switch, the downstream switch, and the load based on one of the values of voltages at the two connection nodes.

Abstract: Provided is a detection device that detects an abnormality in a network in which a plurality of messages including a periodic message are transmitted and received. The detection device includes: a calculation unit configured to calculate a detection index that increases and decreases according to a relationship between an observation result of the plurality of messages and reference information related to the observation result; a detection unit configured to perform a detection process of detecting an abnormality in the network, based on the detection index calculated by the calculation unit; and a reset unit configured to monitor the detection index, and reset the detection index to be used in the detection process, upon detecting an extremum of the detection index.

Abstract: A heat-resistant electric wire of the present disclosure includes a conductor, and an insulator configured to cover the conductor. A ratio of an outer diameter of the conductor to an outer diameter of the insulator is 0.45 to 0.55. The conductor is a compressed conductor in which a stranded wire including a plurality of conductor element wires is compressed, the plurality of conductor element wires being twisted together. The insulator contains one or more types of resin materials selected from a fluororesin and a fluororubber and includes a cavity. Porosity of the insulator is 10% to 60%.

Abstract: An optical modulator integrated laser includes a substrate, a laser portion provided on the substrate and outputting laser light, an optical modulation portion provided on the substrate and modulating the laser light, and a first terminating portion provided on the substrate and including a first resistive film. The optical modulation portion includes a modulation electrode that is supplied with a modulation signal, a signal pad connected to the modulation electrode and for being connected to a first wire for inputting the modulation signal to the optical modulation portion, and a first pad for being connected to a second wire having a ground potential. The signal pad and one end of the first resistive film are connected to each other. The other end of the first resistive film and the first pad are connected to each other.

Abstract: An optical modulator integrated laser includes a substrate, a laser portion provided on the substrate and outputting laser light, an optical modulation portion provided on the substrate and modulating the laser light, and a first terminating portion provided on the substrate and including a first resistive film. The optical modulation portion includes a modulation electrode that is supplied with a modulation signal, a signal pad connected to the modulation electrode and for being connected to a first wire for inputting the modulation signal to the optical modulation portion, and a first pad for being connected to a second wire having a ground potential. The modulation electrode and one end of the first resistive film are connected to each other. Another end of the first resistive film and the first pad are connected to each other.

Abstract: An in-vehicle device is installed in a vehicle, and includes: a communication unit configured to receive reception target data from a roadside device that is a device located outside the vehicle; and a learning unit configured to learn a reception condition for the reception target data by evaluating an extent to which the reception target data received by the communication unit has been used by a function control device installed in the vehicle. The learning unit specifies the reception condition, during a learning period in which the communication unit repeatedly receives the reception target data. The communication unit receives the reception target data according to whether or not the reception condition is satisfied, after the reception condition has been specified by the learning unit.

Abstract: A superconducting wire connection structure includes a first superconducting wire and a second superconducting wire. The first superconducting wire has a first end portion in a longitudinal direction of the first superconducting wire. The second superconducting wire has a second end portion in a longitudinal direction of the second superconducting wire. Each of the first superconducting wire and the second superconducting wire has a base material, an intermediate layer disposed on the base material, and a superconducting layer disposed on the intermediate layer. A connection portion, which is a portion of the superconducting wire connection structure where the superconducting layer at the first end portion and the superconducting layer at the second end portion are connected, has a first sandwiching member and a second sandwiching member.

Abstract: A single-crystal diamond includes n types of regions different in total concentration of an impurity, the n types of regions being observed in an observed surface being in parallel to a (110) face. Each of the n types of regions has an area not smaller than 0.1 ?m2. At least one of a first line, a second line, and a third line on the observed surface crosses a boundary between the n types of regions at least four times. The first line, the second line, and the third line are in parallel to a <?110> direction and have a length of 1 mm. A midpoint of the first line corresponds to the center of gravity of the observed surface. The second line and the third line are distant from the first line by 300 ?m in a <001> direction and a <00?1> direction, respectively.

Abstract: A connector is provided with a connecting member including a contact point portion, a housing for holding the connecting member and a protecting member displaceable with respect to the connecting member to a protection position for protecting the contact point portion and a connection position for bringing the contact point portion into contact with a circuit board. The housing includes a lock portion for holding the protecting member at the protection position.

Abstract: One aspect of the present disclosure is to provide a connector enabling good heat dissipation. A connector 11 according to the one aspect of the present disclosure is provided with a housing 13 made of metal, a flat plate-like busbar 14 to be held in the housing 13, a first ceramic member 18 to be interposed between one flat surface 14a of the busbar 14 and a first contact portion 17 of the housing 13, a second ceramic member 20 to be interposed between another flat surface 14a of the busbar 14 and a second contact portion 19 of the housing 13, and a bolt 21 and a nut 22 for collectively fastening the busbar 14, the first and second ceramic members 18, 20 and the first and second contact portions 17, 19.

Abstract: A reactor is provided with a coil including a pair of winding portions, a magnetic core to be arranged inside and outside the winding portions, a holding member for specifying mutual positions of the coil and the magnetic core, a case for accommodating an assembly including the coil, the magnetic core and the holding member, and a sealing resin portion to be filled into the case. The case includes a bottom plate portion on which the assembly is placed, a side wall portion for surrounding the assembly, and an opening facing the bottom plate portion. The side wall portion includes a pair of long side parts facing each other and a pair of short side parts facing each other. The assembly is so accommodated into the case that an axial direction of each winding portion is along a depth direction of the case.

Abstract: A resin composition for the secondary coating of an optical fiber is a resin composition containing a non-reactive urethane compound having a number average molecular weight of 10000 or more and 50000 or less, a photopolymerizable compound, and a photopolymerization initiator, the content of the non-reactive urethane compound is 0.05 parts by mass or more and 5 parts by mass or less based on the total amount of the resin composition, and the non-reactive urethane compound is a reaction product of a polyol having a number average molecular weight of 8000 or more and 20000 or less, a diisocyanate, and a compound having active hydrogen.