Abstract: A semiconductor device includes a semiconductor element having an Ni—V electrode and a conductor, the semiconductor element and the conductor being bonded via Sn-based lead-free solder. In the semiconductor device, an Sn—V compound layer and an (Ni, Cu)3Sn4 compound layer adjacent to the Sn—V compound are formed adjacent to an interface between the semiconductor element and the Sn-based lead-free solder. A manufacturing method for a semiconductor device according to the present invention includes: causing the Sn-based lead-free solder and the Ni—V electrode to react with each other to form an Sn—V layer and an (Ni, Cu)3Sn4 compound layer; and following formation of the Sn—V layer, leaving an unreacted layer of the Ni—V electrode, the unreacted layer having not reacted with the Sn-based lead-free solder, intact.

Abstract: A radio power transmission system and a radio power transmission method are provided. The radio power transmission system includes a first radio device and a second radio device including a control signal generator and an antenna. The control signal generator generates a control signal for synchronizing frequencies and phases of power waves, based on signals indicating reception intensities of the power waves in a receiving device receiving the power waves. The antenna transmits the control signal to a plurality of the first radio devices. In the radio power transmission system, the plurality of first radio devices radiate, toward the receiving device, the power waves having the frequencies and phases set to a predetermined value based on the control signal.

Abstract: A game machine that can discriminate between two states of an occupied state and an unoccupied state includes a credit function. The game machine includes the credit function configured to determine presence or absence of a credit and a timer part configured to measure a lapse of time, and transitions to the occupied state in which a game is determined to be interrupted or the unoccupied state in which the game machine is determined to be idle according to a determination of the presence or absence of the credit in the credit function when the timer part measures a lapse of a first time.

Abstract: A display device according to one or more embodiments may include a lightguide plate comprising a transparent part, and an incident surface, the lightguide plate configured to display at least one pattern; and a light source facing the incident surface. The lightguide plate may include a plurality of prisms on a surface of the lightguide plate, the plurality of prisms being arranged along the at least one pattern to reflect light emitted from the light source and entering the lightguide plate through the incident surface out of the lightguide plate through an emission surface of the lightguide plate, and a transparent protective layer covering at least a part of the emission surface, the protective layer having a smaller refractive index than the lightguide plate.

Abstract: A radio power transmission system and a radio power transmission method are provided. The radio power transmission system includes a first radio device and a second radio device including a control signal generator and an antenna. The control signal generator generates a control signal for synchronizing frequencies and phases of power waves, based on signals indicating reception intensities of the power waves in a receiving device receiving the power waves. The antenna transmits the control signal to a plurality of the first radio devices. In the radio power transmission system, the plurality of first radio devices radiate, toward the receiving device, the power waves having the frequencies and phases set to a predetermined value based on the control signal.

Abstract: Provided is a living body information identification system that can identify position information of a living body (a person) and state information about a state of the living body without attaching a wireless device or a sensor on a human body. The living body information identification system includes a transceiver configured to transmit radio waves and wirelessly receive a signal, and sensor modules configured to receive the radio waves, convert the received radio waves into power, and use the power as a power supply to transmit own unique ID information to the transceiver. The sensor modules receive the radio waves from the transceiver, convert the received radio waves into power, and use the power as a power supply to transmit state information about a state of the living body to the transceiver. The transceiver identifies the living body based on the ID information and the state information.

Abstract: Provided is a pulse detection apparatus. The apparatus includes: a pulse wave detector that detects a pulse wave, and outputs a pulse wave signal indicating the pulse wave that has been detected; a threshold value setting circuit that sets a threshold value that changes with time in accordance with an amplitude of the pulse wave signal; and a comparator that compares the pulse wave signal with the threshold value, and outputs, as information indicating a pulse, the pulse wave signal exceeding the threshold value.

Abstract: A display device according to one or more embodiments may include a lightguide plate comprising a transparent part, and an incident surface, the lightguide plate configured to display at least one pattern; and a light source facing the incident surface. The lightguide plate may include a plurality of prisms on a surface of the lightguide plate, the plurality of prisms being arranged along the at least one pattern to reflect light emitted from the light source and entering the lightguide plate through the incident surface out of the lightguide plate through an emission surface of the lightguide plate, and a transparent protective layer covering at least a part of the emission surface, the protective layer having a smaller refractive index than the lightguide plate.

Abstract: Provided is a living body information identification system that can identify position information of a living body (a person) and state information about a state of the living body without attaching a wireless device or a sensor on a human body. The living body information identification system includes a transceiver configured to transmit radio waves and wirelessly receive a signal, and sensor modules configured to receive the radio waves, convert the received radio waves into power, and use the power as a power supply to transmit own unique ID information to the transceiver. The sensor modules receive the radio waves from the transceiver, convert the received radio waves into power, and use the power as a power supply to transmit state information about a state of the living body to the transceiver. The transceiver identifies the living body based on the ID information and the state information.

Abstract: A moving body state identification system acquires identified information of a moving body by using a small terminal that does not need to charge or replace a battery. The moving body state identification system includes a transceiver that transmits radio waves and wirelessly receives a signal, ID tags that receive the radio waves, convert the received radio waves into power, and use the power as a power supply to transmit unique ID information to the transceiver, and a state information transmitter that is attached to a moving body, receives the radio waves, converts the received radio waves into power, and uses the power as a power supply to transmit state information about a state of the moving body to the transceiver. The transceiver identifies the moving body based on the ID information and the state information.

Abstract: An operation switch unit attached to a game machine includes a spin button that receives an input operation of an operator, an input detector that detects that the input operation of the operator is performed, and a controller that controls a directional speaker such that the directional speaker emits a directional sound, which does not spread uniformly but has directionality, to the operator as a notification that an operation input is performed based on a detection signal from the input detector.

Abstract: A game machine that can discriminate between two states of an occupied state and an unoccupied state includes a credit function. The game machine includes the credit function configured to determine presence or absence of a credit and a timer part configured to measure a lapse of time, and transitions to the occupied state in which a game is determined to be interrupted or the unoccupied state in which the game machine is determined to be idle according to a determination of the presence or absence of the credit in the credit function when the timer part measures a lapse of a first time.

Abstract: An operation switch unit attached to a game machine includes a spin button that receives an input operation of an operator, an input detector that detects that the input operation of the operator is performed, and a controller that controls a directional speaker such that the directional speaker emits a directional sound, which does not spread uniformly but has directionality, to the operator as a notification that an operation input is performed based on a detection signal from the input detector.

Abstract: The present invention provides a process for preparing a spiroketal derivative, via an intermediate represented by Formula (VI): wherein variable groups and numbers are as defined in the specification, which can be produced from dihalobenzene derivatives in one pot reaction.

Abstract: The present invention provides a novel method for producing a compound represented by general formula (VII) below or a pharmaceutically acceptable salt thereof or a synthetic intermediate thereof: wherein R2 represents a hydrogen atom or a halogen atom, Rc represents a C1-6 alkyl group, X represents a group selected from a heteroaryl group etc., R11 represents an atom or group selected from a hydrogen atom, a halogen atom, a C1-6 alkyl group, etc., R16 and R17 each independently represent an atom or group selected from a hydrogen atom, a C1-6 alkyl group, etc., and R15 represents a hydrogen atom or a C1-6 alkyl group.

Abstract: The present invention provides a novel method for producing a compound represented by general formula (VII) below or a pharmaceutically acceptable salt thereof or a synthetic intermediate thereof: wherein R2 represents a hydrogen atom or a halogen atom, Rc represents a C1-6 alkyl group, X represents a group selected from a heteroaryl group etc., R11 represents an atom or group selected from a hydrogen atom, a halogen atom, a C1-6 alkyl group, etc., R16 and R17 each independently represent an atom or group selected from a hydrogen atom, a C1-6 alkyl group, etc., and R15 represents a hydrogen atom or a C1-6 alkyl group.

Abstract: The present invention provides a process for preparing a spiroketal derivative, via an intermediate represented by Formula (VI): wherein variable groups and numbers are as defined in the specification, which can be produced from dihalobenzene derivatives in one pot reaction.

Abstract: The present invention provides a process for preparing a spiroketal derivative, via an intermediate represented by Formula (VI): wherein variable groups and numbers are as defined in the specification, which can be produced from dihalobenzene derivatives in one pot reaction.

Abstract: There are provided a novel process for producing [{(5Z,7E)-(1S,3R,20S)-1,3-dihydroxy-9,10-secopregna-5,7,10(19),16-tetraen-20-yl}oxy]-N-(2,2,3,3,3-pentafluoropropyl)acetamide, which process is characterized by irradiating a compound represented by the formula: with UV to ring-open the compound, and then isomerizing the resulting compound; an intermediate useful for carrying out the process; and a process for producing the intermediate.

Abstract: The present invention provides a process for preparing a spiroketal derivative, via an intermediate represented by Formula (VI): wherein variable groups and numbers are as defined in the specification, which can be produced from dihalobenzene derivatives in one pot reaction.