Abstract: The present invention provides a process for producing an amino acid N-carboxyanhydride, which comprises reacting an amino acid or a derivative thereof with a compound represented by the following formula (1): wherein R1 and R2 represent the same or different electron-withdrawing substituents and each independently are an optionally substituted acyl group, an optionally substituted alkyloxycarbonyl group, an optionally substituted perfluoroalkyl group, an optionally substituted perchloroalkyl group, a cyano group, a halogen atom, or a nitro group; and a and b are the same or different and each are an integer of 1-5.

Abstract: To provide an efficient method for recovering and producing lactide having high optical purity by depolymerizing a polylactic acid or derivative thereof in order to carry out chemical recycling of the polylactic acid or derivative thereof or of a resin composition comprising same, wherein a mixture of a polylactic acid or derivative thereof and aluminum hydroxide is thermally decomposed at a temperature in a range from at least the melting temperature of the polylactic acid or derivative thereof to no greater than 320° C., thus recovering lactide.

Abstract: The present invention relates to a technique to absorb a speed difference between a data transmission/reception unit, included in a host device which has a interface controller, and a data transmission/reception unit with a external device. The host device and the external apparatus are both electronic apparatus, and the interface controller outputs a transfer clock to the external apparatus, and controls the data transfer between the interface controller and the external apparatus, in accordance with a specific interface specification defined based on the transfer clock.

Abstract: A data transfer control device includes a PATA I/F connected to a PATA bus, a SATA I/F connected to a SATA bus, and a sequence controller that controls a transfer sequence. The PATA I/F includes a task file register that is a pseudo register provided to implement a PATA/SATA bus bridge, and the SATA I/F includes a shadow task file register, a register value being transferred between the shadow task file register and the task file register.

Abstract: A transfer controller (or a host controller) issues IN tokens to a plurality of USB devices connected to USB and including first and second USB devices. When data including destination information which specifies the second USB device as a destination has been received in response to an IN token issued to the first USB device, the transfer controller issues an OUT token to the second USB device and transmits the received data from the first USB device to the second USB device. The transfer controller issues an IN token to at least one of the USB devices which has declared itself to be a local area network (LAN) node.

Abstract: To provide an efficient method for recovering and producing lactide having high optical purity by depolymerizing a polylactic acid or derivative thereof in order to carry out chemical recycling of the polylactic acid or derivative thereof or of a resin composition comprising same, wherein a mixture of a polylactic acid or derivative thereof and aluminum hydroxide is thermally decomposed at a temperature in a range from at least the melting temperature of the polylactic acid or derivative thereof to no greater than 320° C., thus recovering lactide.

Abstract: A macro block MB2 including a physical-layer circuit PHY for communications performs transmission and reception processing to and from a macro block MB1 at a clock frequency CF1. A test circuit TC includes a test transmission buffer TXB that stores a transmission data signal from a test input terminal TPI at a frequency CF2 that is lower than the frequency CF1, and a test reception buffer RXB that outputs a reception data signal to a test output terminal TPO at a frequency CF3 that is lower than the frequency CF1. After the transmission buffer TXB has stored the transmission data signal from the terminal TPI at the frequency CF2, it outputs the stored transmission data signal to the MB2 at the frequency CF1. After the reception buffer RXB has stored the reception data signal from the MB2 at the frequency CF1, it outputs the stored reception data signal to the terminal TPO at the frequency CF3.

Abstract: A test circuit comprises a selector SEL1 having a first input to which signals M1OUT from a macro block MB1 are input and a second input to which test input signals TIN1 and TIN2 for a macro block MB2 are input, and a selector SEL2 having a first input to which a signal SQ from the SEL1 is input and a second input to which a signal M2OUT from the MB2 is input. In a first test mode in which the MB1 is tested, the SEL1 outputs the signals M1OUT from the MB1 to a first input of the SEL2, and the SEL2 outputs the signal SQ from the SEL1 to the MB1. In a second test mode in which the MB2 is tested, the SEL1 outputs the test input signals TIN1 and TIN2 for the MB2 to the MB2, and the SEL2 outputs the signals M2OUT from the MB2 as a test output signal TOUT for the MB2.

Abstract: The present invention relates to a method for preparing polymers by gas-phase deposition polymerization, initiated by a zero valent metal and an initiator.

Abstract: The present invention provides a process for producing an amino acid N-carboxyanhydride, which comprises reacting an amino acid or a derivative thereof with a compound represented by the following formula (1): wherein R1 and R2 represent the same or different electron-withdrawing substituents and each independently are an optionally substituted acyl group, an optionally substituted alkyloxycarbonyl group, an optionally substituted perfluoroalkyl group, an optionally substituted perchloroalkyl group, a cyano group, a halogen atom, or a nitro group; and a and b are the same or different and each are an integer of 1-5.

Abstract: The present invention relates to a method for preparing polymers by gas-phase deposition polymerization, initiated by a zero valent metal and an initiator.

Abstract: The invention relates to a method for preparing copolymers by gas phase radical polymerization and copolymers obtained thereby.

Abstract: A transfer controller (or a host controller) issues IN tokens to a plurality of USB devices connected to USB and including first and second USB devices. When data including destination information which specifies the second USB device as a destination has been received in response to an IN token issued to the first USB device, the transfer controller issues an OUT token to the second USB device and transmits the received data from the first USB device to the second USB device. The transfer controller issues an IN token to at least one of the USB devices which has declared itself to be a local area network (LAN) node.

Abstract: A macro block MB2 including a physical-layer circuit PHY for communications performs transmission and reception processing to and from a macro block MB1 at a clock frequency CF1. A test circuit TC includes a test transmission buffer TXB that stores a transmission data signal from a test input terminal TPI at a frequency CF2 that is lower than the frequency CF1, and a test reception buffer RXB that outputs a reception data signal to a test output terminal TPO at a frequency CF3 that is lower than the frequency CF1. After the transmission buffer TXB has stored the transmission data signal from the terminal TPI at the frequency CF2, it outputs the stored transmission data signal to the MB2 at the frequency CF1. After the reception buffer RXB has stored the reception data signal from the MB2 at the frequency CF1, it outputs the stored reception data signal to the terminal TPO at the frequency CF3.

Abstract: A test circuit comprises a selector SEL1 having a first input to which signals M1OUT from a macro block MB1 are input and a second input to which test input signals TIN1 and TIN2 for a macro block MB2 are input, and a selector SEL2 having a first input to which a signal SQ from the SEL1 is input and a second input to which a signal M2OUT from the MB2 is input. In a first test mode in which the MB1 is tested, the SEL1 outputs the signals M1 OUT from the MB1 to a first input of the SEL2, and the SEL2 outputs the signal SQ from the SEL1 to the MB1. In a second test mode in which the MB2 is tested, the SEL1 outputs the test input signals TIN1 and TIN2 for the MB2 to the MB2, and the SEL2 outputs the signals M2OUT from the MB2 as a test output signal TOUT for the MB2.

Abstract: A macro cell creating method capable of accurately calculating the delay values regarding input/output terminals of a macro cell and efficiently designing a high-speed macro cell. The macro cell creating method includes a first step for creating a frame of a macro cell based on a size estimate of a circuit, a second step for disposing provisional external input/output terminals on the frame of the macro cell based on input/output terminal information of the circuit, a third step for adding connection information of the provisional external input/output terminals with actual input/output terminals to circuit connection information, a fourth step for disposing basic function cells based on the circuit connection information, a fifth step for wiring the basic function cells, a sixth step for deleting wired lines between the provisional external input/output terminals and the actual input/output terminals, and a seventh step for creating macro cell layout data.

Abstract: A process for the production of biodegradable aliphatic polyester particles by (co)polymerizing 2-oxetanone or a mixture containing at least 80% by weight of 2-oxetanone and up to 20% by weight of a cyclic ester or cyclic ether other than 2-oxetanone in the presence of a polymerization initiator supported on a carrier in which an ion polymerization initiator is supported on poly(2-oxetanone) in a liquid medium having a solubility parameter of about 15 to about 18 MPa.sup.1/2 and being capable of dissolving 2-oxetanone, and in a polymerizing apparatus having an internal surface formed of a material which is free of polarity or whose polarity is very small, to form a particulate aliphatic polyester; and a biodegradable aliphatic polyester melt-extrusion film, which comprises the biodegradable aliphatic polyester having a weight average molecular weight of 20,000 to 2,000,000, and having a water vapor transmission rate of 300 to 700 g/m.sup.2 .multidot.24 hours.multidot.25 .mu.

Abstract: A process for the production of biodegradable aliphatic polyester particles by (co)polymerizing 2-oxetanone or a mixture containing at least 80% by weight of 2-oxetanone and up to 20% by weight of a cyclic ester or cyclic ether other than 2-oxetanone in the presence of a polymerization initiator supported on a carrier in which an ion polymerization initiator is supported on poly(2-oxetanone) in a liquid medium having a solubility parameter of about 15 to about 18 MPa.sup.1/2 and being capable of dissolving 2-oxetanone, and in a polymerizing apparatus having an internal surface formed of a material which is free of polarity or whose polarity is very small, to form a particulate aliphatic polyester; and a biodegradable aliphatic polyester melt-extrusion film, which comprises the biodegradable aliphatic polyester having a weight average molecular weight of 20,000 to 2,000,000, and having a water vapor transmission rate of 300 to 700 g/m.sup.2 .multidot.24 hours.multidot.25 .mu.

Abstract: A process for the production of biodegradable aliphatic polyester particles by (co)polymerizing 2-oxetanone or a mixture containing at least 80% by weight of 2-oxetanone and up to 20% by weight of a cyclic ester or cyclic ether other than 2-oxetanone in the presence of a polymerization initiator supported on a carrier in which an ion polymerization initiator is supported on poly(2-oxetanone) in a liquid medium having a solubility parameter of about 15 to about 18 MPa.sup.1/2 and being capable of dissolving 2-oxetanone, and in a polymerizing apparatus having an internal surface formed of a material which is free of polarity or whose polarity is very small, to form a particulate aliphatic polyester; and a biodegradable aliphatic polyester melt-extrusion film, which comprises the biodegradable aliphatic polyester having a weight average molecular weight of 20,000 to 2,000,000, and having a water vapor transmission rate of 300 to 700 g/m.sup.2.24 hours.25 .mu.m and heat-fusing strength of 500 to 5,000 gf/15 mm.