Abstract: A nitride semiconductor crystal has a diameter of four inches or more and is warped to have a curvature radius of 100 m or more, and has an impurity concentration of 1×1017/cm3 or lower. A manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding a gallium trihalide gas having a partial pressure of 9.0×10?3 atm or higher onto the substrate, and growing a GaN crystal in the ?C-axis direction on the substrate, where a growth temperature for the GaN crystal is 1200° C. or higher, or a manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding an aluminum trihalide gas having a partial pressure of 9.0×10?3 atm or higher onto the substrate, and growing an AlN crystal in the ?C-axis direction on the substrate, where a growth temperature for the AlN crystal is 1400° C. or higher.

Abstract: InGaN-based light-emitting devices fabricated on an InGaN template layer are disclosed.

Abstract: A high withstand voltage Schottky barrier diode includes a first layer that includes a first Ga2O3-based single crystal including a first Group IV element and Cl at a concentration of not more than 5×1016 cm?3 and that has an effective donor concentration of not less than 1×1013 and not more than 6.0×1017 cm?3, a second layer that includes a second Ga2O3-based single crystal including a second Group IV element and that has a higher effective donor concentration than the first layer and is laminated on the first layer, an anode electrode formed on the first layer, and a cathode electrode formed on the second layer.

Abstract: InGaN-based light-emitting devices fabricated on an InGaN template layer are disclosed.

Abstract: A crystal laminate structure includes a Ga2O3-based substrate, and a ?-Ga2O3-based single crystal film formed by epitaxial crystal growth on a principal surface of the Ga2O3-based substrate. The ?-Ga2O3-based single crystal film includes Cl and a dopant doped in parallel with the crystal growth at a concentration of not less than 1×1013 atoms/cm3 and not more than 5.0×1020 atoms/cm3.

Abstract: A semiconductor element includes a high-resistivity substrate that includes a ?-Ga2O3-based single crystal including an acceptor impurity, a buffer layer on the high-resistivity substrate, the buffer layer including a ?-Ga2O3-based single crystal, and a channel layer on the buffer layer, the channel layer including a ?-Ga2O3-based single crystal including a donor impurity. A crystalline laminate structure includes a high-resistivity substrate that includes a ?-Ga2O3-based single crystal including an acceptor impurity, a buffer layer on the high-resistivity substrate, the buffer layer including a ?-Ga2O3-based single crystal, and a donor impurity-containing layer on the buffer layer, the donor impurity-containing layer including a ?-Ga2O3-based single crystal including a donor impurity.

Abstract: A semiconductor substrate for being used as a base substrate for epitaxial crystal growth by HVPE method includes a ?-Ga2O3-based single crystal, and a principal surface that is a plane parallel to a [010] axis of the ?-Ga2O3-based single crystal. An epitaxial wafer includes the semiconductor substrate, and an epitaxial layer that includes a ?-Ga2O3-based single crystal and is formed on the principal surface of the semiconductor substrate by epitaxial crystal growth using the HVPE method. A method for manufacturing the epitaxial wafer includes forming the epitaxial layer by epitaxial crystal growth using the HVPE method on the semiconductor substrate.

Abstract: A personal digital assistant attachment structure is used for a saddle-ride vehicle and removably attaches a personal digital assistant including a display screen to a vehicle body. The attachment structure includes a terminal holder that includes a connector cord and a supported portion and is provided separately from the vehicle body. The supported portion includes a cord holder and a holder terminal. The cord holder holds the connector cord and the holder terminal is connected to the second end of the connector cord, A holder support, which is provided integrally with the vehicle body, is removably engaged with the supported portion to support the terminal holder, and includes a vehicle-body-side terminal. The vehicle-body-side terminal is removably connected to the holder terminal during engagement of the supported portion.

Abstract: As one embodiment, the present invention provides a method for growing a ?-Ga2O3-based single crystal film by using HVPE method. The method includes a step of exposing a Ga2O3-based substrate to a gallium chloride-based gas and an oxygen-including gas, and growing a ?-Ga2O3-based single crystal film on a principal surface of the Ga2O3-based substrate at a growth temperature of not lower than 900° C.

Abstract: An electric vehicle can include a power unit including a speed reduction device coupled to a motor output shaft. Two systems can be provided which are a drive-power transmission path to transmit rotation of a motor to a wheel hub, and a regenerative-power transmission path to transmit rotation of the hub to the motor. A drive-side one-way clutch is provided between the hub and a second internal gear being the final-stage gear in the drive-power transmission path and is configured to transmit rotation of the drive-side final-stage gear to the hub. A regeneration-side one-way clutch is provided between the hub and a regeneration-side first-stage gear and is configured to transmit rotation of the hub to the regeneration-side first-stage gear.

Abstract: A nitride semiconductor crystal has a diameter of four inches or more and is warped to have a curvature radius of 100 m or more, and has an impurity concentration of 1×1017/cm3 or lower. A manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding a gallium trihalide gas having a partial pressure of 9.0×10?3 atm or higher onto the substrate, and growing a GaN crystal in the ?C-axis direction on the substrate, where a growth temperature for the GaN crystal is 1200° C. or higher, or a manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding an aluminum trihalide gas having a partial pressure of 9.0×10?3 atm or higher onto the substrate, and growing an AlN crystal in the ?C-axis direction on the substrate, where a growth temperature for the AlN crystal is 1400° C. or higher.

Abstract: A personal digital assistant attachment structure is used for a saddle-ride vehicle and removably attaches a personal digital assistant including a display screen to a vehicle body. The attachment structure includes a terminal holder that includes a connector cord and a supported portion and is provided separately from the vehicle body. The supported portion includes a cord holder and a holder terminal. The cord holder holds the connector cord and the holder terminal is connected to the second end of the connector cord, A holder support, which is provided integrally with the vehicle body, is removably engaged with the supported portion to support the terminal holder, and includes a vehicle-body-side terminal. The vehicle-body-side terminal is removably connected to the holder terminal during engagement of the supported portion.

Abstract: A control apparatus for a motor-assisted bicycle detects a pedaling torque applied to a crankshaft with a pedaling force sensor, controls a motor unit of the motor-assisted bicycle in a regenerative control process to charge a battery, if the torque value of the detected pedaling torque is equal to or smaller than a predetermined level, and controls the motor unit in an assistive control process, if the torque value is greater than the predetermined level. The control apparatus performs an assistive transient control process with an assistive ratio lower than in the assistive control process while the crankshaft makes a predetermined number of revolutions and thereafter performs the regenerative control process, if the torque value detected by the pedaling force sensor has a peak equal to or smaller than the predetermined level.

Abstract: A collection and delivery support system for a saddle-ride type electric vehicle includes a managing terminal that outputs information of registered collection/delivery destinations of cargos and information on battery charging locations arranged within a collection/delivery range of the vehicle, a server that calculates a collection/delivery route passing through respective collection and delivery destinations in order based on a possible traveling distance of the vehicle, and a mobile terminal provided with the vehicle. The server calculates the route such that it includes a battery charging location in the middle thereof, as well as estimated collection/delivery times based on the possible traveling distance information. The display displays information of the calculated route and the estimated collection/and delivery times.

Abstract: A vehicle drive unit includes an axle formed of an output shaft of a motor, and a first support shaft and a second support shaft arranged at both ends of the output shaft. A stator is held on a first holding plate and a second holding plate. The second holding plate and a bearing block form a carrier of planetary gears. The second holding plate includes a bearing holding portion. The second support shaft is supported on the bearing holding portion. The first support shaft is supported on the first holding plate. The output shaft is supported at one end on the first holding plate and the other end on the bearing holding portion.

Abstract: InGaN-based light-emitting devices fabricated on an InGaN template layer are disclosed.

Abstract: A collection and delivery management system and method receives and manages information required for collection and delivery work. A vehicle includes an portable terminal mounted thereon, which receives vehicle state information. The portable terminal determines a state of the collection and delivery work, requests collection and delivery information on cargoes to be collected and delivered to a server, and displays the collection and delivery information. The portable terminal includes an input screen for inputting route completion data corresponding to a result of the collection and delivery work executed, and transmits such route completion data to the server, which transmits the collection and delivery information to the portable terminal according to the request from the portable terminal and records information of the result of the collection and delivery work having been transmitted from the portable terminal so as to be tagged to the collection and delivery information having been transmitted.

Abstract: A collection and delivery support system for a saddle-ride type electric vehicle includes a managing terminal that outputs information of registered collection/delivery destinations of cargos and information on battery charging locations arranged within a collection/delivery range of the vehicle, a server that calculates a collection/delivery route passing through respective collection and delivery destinations in order based on a possible traveling distance of the vehicle, and a mobile terminal provided with the vehicle. The server calculates the route such that it includes a battery charging location in the middle thereof, as well as estimated collection/delivery times based on the possible traveling distance information. The display displays information of the calculated route and the estimated collection/and delivery times.

Abstract: A stator coil for an axial gap electrical rotating machine includes first coil pieces, second coil pieces, and an annular base member having recesses for arranging and holding the first and second coil pieces in back and front faces of the annular base member. The first and second coil pieces are arranged in a circumferential direction of the annular base member in the recesses in both back and front faces of the base member. The first joint portion of one first coil piece faces and is connected to the first joint portion of another first coil piece. The second joint portion of one first coil piece faces and being connected to the second joint portion of another second coil piece or the third joint portion of one second coil piece to provide a coil loop.

Abstract: A control apparatus for a motor-assisted bicycle detects a pedaling torque applied to a crankshaft with a pedaling force sensor, controls a motor unit of the motor-assisted bicycle in a regenerative control process to charge a battery, if the torque value of the detected pedaling torque is equal to or smaller than a predetermined level, and controls the motor unit in an assistive control process, if the torque value is greater than the predetermined level. The control apparatus performs an assistive transient control process with an assistive ratio lower than in the assistive control process while the crankshaft makes a predetermined number of revolutions and thereafter performs the regenerative control process, if the torque value detected by the pedaling force sensor has a peak equal to or smaller than the predetermined level.