Abstract: In a method for producing hydrogen and carboxylic acid, a primary alcohol of 1 to 7 carbon atoms and water are reacted by being continuously introduced into a flow reactor packed with a solid catalyst consisting of an alloy of ruthenium and tin on a support and passed through the reactor under temperature and pressure conditions at which the water assumes a gaseous state. This method enables hydrogen and carboxylic acid to be produced in a high yield or at a high purity from a primary alcohol and water in a short time and by simple operations.

Abstract: In a method for producing hydrogen and carboxylic acid, a primary alcohol of 1 to 7 carbon atoms and water are reacted by being continuously introduced into a flow reactor packed with a solid catalyst consisting of an alloy of ruthenium and tin on a support and passed through the reactor under temperature and pressure conditions at which the water assumes a gaseous state. This method enables hydrogen and carboxylic acid to be produced in a high yield or at a high purity from a primary alcohol and water in a short time and by simple operations.

Abstract: A method for producing a sugar anhydride, said method comprising: (1) a step for conducting a first heat treatment by heating a polysaccharide having a reducing end at 130-350° C. in the presence of an alcohol compound having 1-10 carbon atoms and not having an acetal structure; (2) a step for conducting a second heat treatment by heating the polysaccharide having been heated in the first heat treatment and thus thermally decomposing the polysaccharide to thereby give a gaseous sugar anhydride, without forming a char or with forming a filmy char, and without generating carbon monoxide or with regulating the generation amount of carbon monoxide, if any, to not more than 5 parts by mass per 100 parts by mass of the absolute dry mass of the polysaccharide; and (3) a collection step for cooling the gaseous sugar anhydride to a temperature equal to or lower than the boiling point thereof and then collecting the same. According to this method, a sugar anhydride can be easily produced at a high yield.

Abstract: The present invention is a copolymer containing, as essential structural units, unit A represented by Formula (1) and unit B represented by Formula (2): (wherein R1 and R4 each independently represent a hydrogen atom or a methyl group, and R2 and R3 each independently represent a hydrogen atom or a C1-20 hydrocarbon group, excluding cases where two or more groups of R1 to R3 are hydrogen atoms.) (wherein R5 represents a hydrogen atom or a methyl group, and R6 represents a group selected from the group consisting of C1-20 hydrocarbon groups optionally containing an oxygen atom, C1-20 alkoxy groups, hydrogen atoms, oxygen radicals and hydroxyl groups.

Abstract: The present invention is a copolymer containing, as essential structural units, unit A represented by Formula (1) and unit B represented by Formula (2): (wherein R1 and R4 each independently represent a hydrogen atom or a methyl group, and R2 and R3 each independently represent a hydrogen atom or a C1-20 hydrocarbon group, excluding cases where two or more groups of R1 to R3 are hydrogen atoms.) (wherein R5 represents a hydrogen atom or a methyl group, and R6 represents a group selected from the group consisting of C1-20 hydrocarbon groups optionally containing an oxygen atom, C1-20 alkoxy groups, hydrogen atoms, oxygen radicals and hydroxyl groups.

Abstract: There is provided a switching power supply circuit which receives a voltage from a direct current voltage source and supplies a direct current power to a load part. The circuit includes a switching element, a current detection circuit which is serially connected to the switching element, and which converts a current flowing in the switching element into a voltage, a control circuit which outputs a switch driving signal to control an ON/OFF operation of the switching element such that a current flowing in the load part becomes constant, a reference voltage generation circuit which generates a reference voltage proportional to an ON duty of the switch driving signal, and an error amplification circuit which outputs error information between a voltage output from the current detection circuit and the reference voltage. The control circuit adjusts the ON duty of the switch driving signal based on the error information.

Abstract: There is provided switching power unit comprising: a PFC voltage detector that detects PFC voltages of the power-factor improvement unit; an output voltage detector that is provided in a current resonance converter unit; a switching controller into which output signals from the PFC voltage detector and output signals from the output voltage detector are input, wherein the switching controller in a full-bridge circuit of first to fourth switching elements, based on output signals from the PFC voltage detector and the output voltage detector, controls the PFC voltages by changing on-duty of the first and second switching elements, and also controls the output voltages by changing switching frequencies of the full-bridge circuit.

Abstract: A USB device includes: a communication section that is capable of wirelessly communicating with a communication device that supports a predetermined communication standard; a USB communication section that is capable of communicating with a USB host device; and a connection section that, when a connection to the communication device is requested under the condition that a connection to the USB host device is requested, determines whether or not a protocol supported by the communication device is any of multiple protocols, and establishes the connection to the USB host device through the USB communication section using a device class corresponding to the determined protocol.

Abstract: A switching power supply apparatus includes: an input part; an input filter provided for a power factor correction circuit, which includes at least a line capacitor; a bridgeless power factor correction circuit that is connected to the input part; and an inrush current suppression circuit to suppress inrush current, wherein the bridgeless power factor correction circuit comprises: a conversion unit, which has a boost inductor unit and a switching circuit connected to the boost inductor unit; and a smoothing unit that is connected to an output terminal side of the conversion unit, and wherein the inrush current suppression circuit is arranged at least one of: a path connecting between an end of the input filter and the boost inductor unit; a path connecting between the boost inductor unit and the switching circuit; and a path connecting between the switching circuit and the smoothing unit.

Abstract: Provided is an information processing apparatus having a plurality of antennas for short range wireless communication, cooperating with a detected terminal apparatus when each of the antennas detects the terminal apparatus as a counter communication party, and performing a process associated in advance with the antenna that detects the terminal apparatus, including a scanner, wherein if a first antenna among the antennas detects a first terminal apparatus, the image data read by the scanner is transmitted to the first terminal apparatus through the first antenna so as to be stored in the first terminal apparatus, wherein the scanner includes: a platen; a carriage in which a scanner head is provided, wherein a first antenna among the antennas is provided to the carriage, and wherein, every time when the second antenna is moved together with the carriage to sequentially detect the terminal apparatuses mounted on the platen, the information processing apparatus and the terminal apparatuses cooperate with each ot

Abstract: There is provided switching power unit comprising: a PFC voltage detector that detects PFC voltages of the power-factor improvement unit; an output voltage detector that is provided in a current resonance converter unit; a switching controller into which output signals from the PFC voltage detector and output signals from the output voltage detector are input, wherein the switching controller in a full-bridge circuit of first to fourth switching elements, based on output signals from the PFC voltage detector and the output voltage detector, controls the PFC voltages by changing on-duty of the first and second switching elements, and also controls the output voltages by changing switching frequencies of the full-bridge circuit.

Abstract: There is provided a switching power supply circuit which receives a voltage from a direct current voltage source and supplies a direct current power to a load part. The circuit includes a switching element, a current detection circuit which is serially connected to the switching element, and which converts a current flowing in the switching element into a voltage, a control circuit which outputs a switch driving signal to control an ON/OFF operation of the switching element such that a current flowing in the load part becomes constant, a reference voltage generation circuit which generates a reference voltage proportional to an ON duty of the switch driving signal, and an error amplification circuit which outputs error information between a voltage output from the current detection circuit and the reference voltage. The control circuit adjusts the ON duty of the switch driving signal based on the error information.

Abstract: A USB device includes: a communication section that is capable of wirelessly communicating with a communication device that supports a predetermined communication standard; a USB communication section that is capable of communicating with a USB host device; and a connection section that, when a connection to the communication device is requested under the condition that a connection to the USB host device is requested, determines whether or not a protocol supported by the communication device is any of multiple protocols, and establishes the connection to the USB host device through the USB communication section using a device class corresponding to the determined protocol.

Abstract: Provided is an information processing apparatus having a plurality of antennas for short range wireless communication, cooperating with a detected terminal apparatus when each of the antennas detects the terminal apparatus as a counter communication party, and performing a process associated in advance with the antenna that detects the terminal apparatus, including a scanner, wherein if a first antenna among the antennas detects a first terminal apparatus, the image data read by the scanner is transmitted to the first terminal apparatus through the first antenna so as to be stored in the first terminal apparatus, wherein the scanner includes: a platen; a carriage in which a scanner head is provided, wherein a first antenna among the antennas is provided to the carriage, and wherein, every time when the second antenna is moved together with the carriage to sequentially detect the terminal apparatuses mounted on the platen, the information processing apparatus and the terminal apparatuses cooperate with each ot

Abstract: A printer includes a body, a print engine accommodated in the body, and a pair of antennae for near-field communication, the pair of antennae being provided on any one of front and rear surfaces, right and left surfaces, and upper and lower surfaces of the body, wherein in cases where a first antenna receives a radio signal related to a first print job, any one of the following is performed: (1) performing all of the printing in accordance with the first print job with the print engine; (2) performing part of the printing in accordance with the first print job with the print engine, followed by outputting a radio signal related to a remaining portion of the first print job from a second antenna other than the first antenna; and (3) outputting a radio signal related to the first print job from the second antenna without performing printing in accordance with the first print job with the print engine.

Abstract: An image forming system includes a first terminal device and a second terminal device. The first terminal device includes a storing unit that stores image data, a network connecting unit for establishing a connection with another terminal device through the Internet, an inputting unit that accepts input of a facsimile number of the second terminal device, a producing unit that produces peer-to-peer connection information for establishing a peer-to-peer connection with the second terminal device using the network connecting unit, and a facsimile transmitter that transmits the peer-to-peer connection information over telephone lines to the second terminal device in accordance with the facsimile number whose input is accepted by the inputting unit.

Abstract: A method for processing backup in the invention calculates a necessary capacity of a second storage medium when backing up in a plurality of divided sessions backup target data stored on a first storage medium, decides the number of dividing into the sessions based on the calculated necessary capacity and an available capacity of the second storage medium, and copies the backup target data from the first storage medium to the second storage medium, the backup target data being divided according to the number of dividing into the sessions.

Abstract: A power supply method to a memory card that has been inserted into an apparatus that can be inserted with a plurality of types of memory cards, includes: detecting that one type of the memory card out of a plurality of the types of memory cards has been inserted into a card slot; judging whether or not there has been detected an insertion of a different type of memory card from the type of the memory card that has already been detected, within passing of a predetermined time from when the insertion of the one type of the memory card has been detected; specifying the type of the memory card that has been inserted, based on a result of the judgment; and supplying electric power to the specified type of memory card.

Abstract: A USB composite device including devices of different USB subclasses and enable communications between the devices and a host without increasing the number of logic interfaces, comprising a first device having a first USB subclass and a second device having a second USB subclass corresponding to a second communication command are assigned as devices of the same USB subclass to the same logic interface, and logic interface information that associates the same logic interface with the same USB subclass and the number of logical units are sent to the host. The first and second devices send back device information to the host for each logical unit in response to an inquiry about the device information from the host with the same communication command, and the host performs communications with the communication command supported by each device.

Abstract: When a user requests the process of saving files stored in a memory card in a storage medium, such as DVD-RW, in MPV format, the multifunction printer 10 selects a file available for printing based on file extensions from the plurality of files stored in the memory card (step S130), creates a folder, and copies the selected file into the folder (step S140). The multifunction printer subsequently create and save a manifest in the folder, and stores information on saving location as asset information of the selected file in the manifest (step S160). The multifunction printer writes metadata into the asset information (step S170-S210) and registers link information to the created manifest in root manifest (step S220). A file can be readily acquired afterwards by using the root manifest and the manifest and be printed out. And files available for a predetermined usage can be managed easily.