Abstract: To provide a method for purifying tetrafluoroethylene by removing, from tetrafluoroethylene containing a polymerization inhibitor, the polymerization inhibitor by adsorption. A method of bringing tetrafluoroethylene containing a polymerization inhibitor into contact with a silica gel containing a metal salt in an amount of from 250 to 100,000 mass ppm as calculated as metal atoms to remove the polymerization inhibitor by adsorption, and the metal salt is preferably a salt of a metal of Group 3 to 13 of the Periodic Table, more preferably a salt of a metal of Group 8 to 10 of the Periodic Table. For example, as the metal salt, a salt of at least one metal selected from the group consisting of iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium and platinum may be used.

Abstract: The present invention provides an ion-exchange resin catalyst, as a catalyst for preparing bisphenol from phenol compounds and ketone, which has a higher selectivity to bisphenol and a longer life time, as compared to a conventional ion-exchange resin, and a method for preparing the same. The present invention also provides a method for preparing bisphenol comprising reacting phenol compounds with ketone, wherein the modified acidic ion-exchange resin in which at least one kind of cationic compound selected from the following (a), (b), (c) and (d) ionically binds to an acidic functional group, is used as a catalyst: (a) a quaternary phosphonium ion, (b) a quaternary ammonium ion, (c) a bis(phosphoranylidene) ammonium ion, and (d) an N-substituted nitrogen-containing aromatic cation.

Abstract: An endoscopic instrument according to the present invention includes: a wire disposed in a flexible sheath and capable of freely projecting relative to the flexible sheath, the distal end of the wire expanding in radius to form a loop section or a basket section upon being projected from the sheath; and a fixture cylinder for fixing the inserted proximal end of the wire, wherein the fixture cylinder is provided with a wire-radius-increasing-direction-regulating section for regulating the direction in which the radius of the wire increases; and a wire-fixing section, disposed in the vicinity of the proximal end relative to the wire-radius-increasing-direction-regulating section, for fixing the wire.

Abstract: The present invention provides a method of manufacturing a highly pure ammonium succinate solution including the steps of (A) producing calcium succinate trihydrate by crystallization fermentation of a microorganism; (B) converting calcium succinate trihydrate to calcium succinate monohydrate by transition crystallization; (C) separating the calcium succinate monohydrate crystals; (D) substituting the calcium salt in the calcium succinate monohydrate with ammonium salt resulting in an ammonium succinate solution; and (E) removing the solid calcium carbonate from the ammonium succinate solution.

Abstract: Provided is a highly efficient rectifier which can readily replace a two-terminal diode and whose conduction loss is reduced from that of the two-terminal diode. Connected between the source and drain of a MOSFET (2) including a parasitic diode (2a) are: a micro-power converter section (3) for boosting a conduction voltage Vds between the source and drain to a predetermined voltage; and a self-drive control section (4) that operates based on a voltage outputted from the micro-power converter section (3). When the source and drain are conductive with each other, the micro-power converter section (3) generates, from the conduction voltage Vds, a power source voltage for the self-drive control section (4), and the self-drive control section (4) continues drive control of the MOSFET (2).

Abstract: A first booster circuit and a second booster circuit include input capacitors, reactors, diodes, switch elements, and output capacitors, and are arranged to be symmetric to each other on a positive side and a negative side. The reactors are magnetically coupled to each other. With such configuration, the switch elements are on/off controlled simultaneously based on terminal voltages of the input capacitors and the output capacitors.

Abstract: There is provided a technique for improving the efficiency of a generation system of a series hybrid electric vehicle The series hybrid electric vehicle is composed of: an engine; an n-phase generator driven by the engine; a rectifier generating a DC voltage from an n-phase AC voltage received from the n-phase generator; a battery charged with the DC voltage generated; a motor driving drive wheels; an inverter driving the motor on the DC voltage received from the rectifier and/or a DC voltage supplied from the battery; and a switch. The n-phase generator has n armature windings each having one end connected to a common neutral point. The rectifier has a negative terminal, a positive terminal on which a higher potential is generated than on the negative terminal, and n rectifying arms.

Abstract: A chopper table comprises table bodies for guiding a signature transported by transport belts, and a pair of inlet guides for guiding the signature pushed in by a chopper blade. The table bodies are detachably supported on chopper frames, and the inlet guides are detachably supported on the chopper frames via brackets. The chopper table improves the returnability of the table body and inlet guide when they are removed at the time of a paper jam or replacement of the transport belt, and can easily adjust the gap of a slit between the inlet guides.

Abstract: A chopper table comprises table bodies for guiding a signature transported by transport belts, and a pair of inlet guides for guiding the signature pushed in by a chopper blade. The table bodies are detachably supported on chopper frames, and the inlet guides are detachably supported on the chopper frames via brackets. The chopper table improves the returnability of the table body and inlet guide when they are removed at the time of a paper jam or replacement of the transport belt, and can easily adjust the gap of a slit between the inlet guides.

Abstract: An endoscopic instrument according to the present invention includes: a wire disposed in a flexible sheath and capable of freely projecting relative to the flexible sheath, the distal end of the wire expanding in radius to form a loop section or a basket section upon being projected from the sheath; and a fixture cylinder for fixing the inserted proximal end of the wire, wherein the fixture cylinder is provided with a wire-radius-increasing-direction-regulating section for regulating the direction in which the radius of the wire increases; and a wire-fixing section, disposed in the vicinity of the proximal end relative to the wire-radius-increasing-direction-regulating section, for fixing the wire.

Abstract: A first booster circuit and a second booster circuit include input capacitors, reactors, diodes, switch elements, and output capacitors, and are arranged to be symmetric to each other on a positive side and a negative side. The reactors are magnetically coupled to each other. With such configuration, the switch elements are on/off controlled simultaneously based on terminal voltages of the input capacitors and the output capacitors.

Abstract: A chopper table comprises table bodies for guiding a signature transported by transport belts, and a pair of inlet guides for guiding the signature pushed in by a chopper blade. The table bodies are detachably supported on chopper frames, and the inlet guides are detachably supported on the chopper frames via brackets. The chopper table improves the returnability of the table body and inlet guide when they are removed at the time of a paper jam or replacement of the transport belt, and can easily adjust the gap of a slit between the inlet guides.

Abstract: The present invention provides a technique for enabling permanent magnets constituting the field magnet system of an IPM electric rotating machine to be embedded in a rotor core in a shallower depth. The IPM electric rotating machine is composed of a stator and a rotor. The rotor includes a rotor core and permanent magnets constituting the field magnet system. The rotor core has a side face opposed to the stator, and the permanent magnets are shallowly embedded so that the distance between the pole face thereof and the rotor side face is reduced. Furthermore, two adjacent permanent magnets are intensively spaced so that the following formula holds: 0.3<(Lq?Ld)/Ld, where Lq is the q-axis inductance of the rotor, and Ld is the d-axis inductance thereof.

Abstract: A chopper table comprises table bodies for guiding a signature transported by transport belts, and a pair of inlet guides for guiding the signature pushed in by a chopper blade. The table bodies are detachably supported on chopper frames, and the inlet guides are detachably supported on the chopper frames via brackets. The chopper table improves the returnability of the table body and inlet guide when they are removed at the time of a paper jam or replacement of the transport belt, and can easily adjust the gap of a slit between the inlet guides.

Abstract: A chopper table comprises table bodies for guiding a signature transported by transport belts, and a pair of inlet guides for guiding the signature pushed in by a chopper blade. The table bodies are detachably supported on chopper frames, and the inlet guides are detachably supported on the chopper frames via brackets. The chopper table improves the returnability of the table body and inlet guide when they are removed at the time of a paper jam or replacement of the transport belt, and can easily adjust the gap of a slit between the inlet guides.

Abstract: A chopper table comprises table bodies for guiding a signature transported by transport belts, and a pair of inlet guides for guiding the signature pushed in by a chopper blade. The table bodies are detachably supported on chopper frames, and the inlet guides are detachably supported on the chopper frames via brackets. The chopper table improves the return ability of the table body and inlet guide when they are removed at the time of a paper jam or replacement of the transport belt, and can easily adjust the gap of a slit between the inlet guides.

Abstract: A conveyor apparatus includes a receiving clearance adjustment mechanism for adjusting the vertical clearance between portions of downstream-side upper belts, the portion being located furthest upstream with respect to the conveyance direction of signatures, and upstream-side lower belts. The conveyor apparatus also includes a separation start position adjustment mechanism for adjusting a position at which upstream-side upper belts start to separate away from a signature. The conveyer apparatus can convey sheets, while properly transferring them between upstream-side belts to downstream-side belts, without generation of unintended positional shift, even when changes arise in the thickness and/or length of the sheets.

Abstract: A failure check apparatus for a control apparatus of a vehicle such as ABS. When the failure check apparatus performs initial check for the ABS, it successively activates each of solenoid valves and a motor provided in the ABS, one at a time, for a predetermined time so as to determine whether a failure has occurred in the ABS. At that time, activation of the motor is started when a certain delay time elapses after the end of activation of the last solenoid valve. The delay time is a time which the vibration generated in the control apparatus upon activation of the last solenoid valve converges. Thus, interference between a vibration wave (sound wave) generated upon actuation of the solenoid valves and a vibration wave (sound wave) generated upon actuation of the motor, which differ in nature of vibration, is prevented.

Abstract: The present invention provides a technique for enabling permanent magnets constituting the field magnet system of an IPM electric rotating machine to be embedded in a rotor core in a shallower depth. The IPM electric rotating machine is composed of a stator and a rotor. The rotor includes a rotor core and permanent magnets constituting the field magnet system. The rotor core has a side face opposed to the stator, and the permanent magnets are shallowly embedded so that the distance between the pole face thereof and the rotor side face is reduced. Furthermore, two adjacent permanent magnets are intensively spaced so that the following formula holds; 0.3<(Lq?Ls)/Ld, where Lq is the q-axis inductance of the rotor, and Ld is the d-axis inductance thereof.

Abstract: Disclosed is a compact self-ballasted fluorescent lamp that includes a phosphor coating provided inside a glass tube bent to have a double-spiral configuration. The arc tube has two spiral parts that are wound around an axis “A”, and a turning part joining the two spiral parts. At any cross section of the glass tube, the applied phosphor coating is thicker in the inner surface of the glass tube near the ends of the glass tube in the axis “A” direction, than in the inner surface near the turning part.