Abstract: A resin composition, a shaped article, a fiber, a film and a sheet. The resin composition includes two or more kinds of polyolefin resins (A), and 0.05 to 10 mass % of an ?-olefin (co)polymer (B) satisfying requirements (b-1) to (b-3): (b-1) A methyl group index is 40 to 60%. The methyl group index is a ratio of an integral of a peak observed in a range of 0.50 to 1.15 ppm to an integral of peaks observed in a range of 0.50 to 2.20 ppm in a 1H-NMR spectrum of a solution of the (co)polymer (B) in deuterated chloroform, positions of the peaks being calculated relative to a solvent peak at 7.24 ppm assigned to CHCl3 in deuterated chloroform as a reference. (b-2) A weight average molecular weight determined by GPC is 1,500 to 20,000. (b-3) No melting point is observed from ?100 to 150° C. in DSC.

Abstract: An air conditioner for a vehicle includes: an air-conditioning case having therein an air flow passage through which air toward the vehicle interior flows, and an outlet opening formed at an upper part of the air-conditioning case and through which the air toward the vehicle interior passes; a heat exchanger disposed on a lower side of the outlet opening inside the air-conditioning case to exchange heat between air toward the vehicle interior and a heat-exchange medium; and an ion generator that includes electrodes to generate ions. The ion generator is mounted on the air-conditioning case such that the electrodes are exposed in air flowing through the air flow passage. The air-conditioning case has a collision-side wall surface with which the airflow having passed through the heat exchanger collides to be directed upward, and a lateral-side wall surface connected to and laterally adjacent to the collision-side wall surface.

Abstract: An air conditioner for a vehicle includes: an air-conditioning case having therein an air flow passage through which air toward the vehicle interior flows, and an outlet opening formed at an upper part of the air-conditioning case and through which the air toward the vehicle interior passes; a heat exchanger disposed on a lower side of the outlet opening inside the air-conditioning case to exchange heat between air toward the vehicle interior and a heat-exchange medium; and an ion generator that includes electrodes to generate ions. The ion generator is mounted on the air-conditioning case such that the electrodes are exposed in air flowing through the air flow passage. The air-conditioning case has a collision-side wall surface with which the airflow having passed through the heat exchanger collides to be directed upward, and a lateral-side wall surface connected to and laterally adjacent to the collision-side wall surface.

Abstract: In a field effect transistor, a Group III nitride semiconductor layer structure containing a hetero junction, a source electrode 101 and a drain electrode 103 formed apart from each other over the Group III nitride semiconductor layer structure, and a gate electrode 102 disposed between these electrodes, are provided. Over the surface of the Group III nitride semiconductor layer structure, a SiO2 film 122 containing oxygen as a constitutive element is provided, in contact with both side faces of the gate electrode 102. Over the surface of the Group III nitride semiconductor layer structure, a SiN film 121 is provided so as to cover the region between the SiO2 film 122 and the source electrode 101, and the region between the SiO2 film 122 and the drain electrode 103. The SiN film 121 is composed of a material different from that composing the SiO2 film 122, and contains nitrogen as a constitutive element.

Abstract: A centrifugal multi-blade fan has multiple blades about a rotational shaft and draws in air along the rotational shaft and then blows the air approximately perpendicular to the rotational shaft to reduce wind noise. A scroll casing encloses the multi-blade fan and defines a scroll-shaped airflow passage for directing the air blown from the multi-blade fan. The scroll casing has an intake opening and an outlet opening at a scroll end, in a downstream scroll casing portion. The scroll casing expands such that a flow passage cross-sectional area on the airflow downstream side is larger than that on an airflow upstream side. A ratio of a blade length to a diameter of the multi-blade fan is greater than or equal to 0.12, and an outer scroll casing radius, relative to the rotational axis, increases as a logarithmic spiral, its expansion angle being from 3.3° to 4.8°.

Abstract: The present invention solves characteristic deterioration caused by peaking and a ground inductance, and provides a transimpedance amplifier capable of achieving a higher gain and a wider band. For this purpose, the transimpedance amplifier is configured to include a feedback circuit having two or more extreme frequencies and having a filter characteristic which is flat with respect to frequencies in a frequency region not more than a smallest extreme frequency among the extreme frequencies, which is flat with respect to frequencies in a frequency region not less than a largest extreme frequency among the extreme frequencies, and which has at least one negative inclination portion with respect to frequencies in a frequency region between the smallest and largest extreme frequencies.

Abstract: A semiconductor device 100 contains an undoped GaN channel layer 105, an AlGaN electron donor layer 106 provided on the undoped GaN channel layer 105 as being brought into contact therewith, an undoped GaN layer 107 provided on the AlGaN electron donor layer 106, a source electrode 101 and a drain electrode 103 provided on the undoped GaN layer 107 as being spaced from each other, a recess 111 provided in the region between the source electrode 101 and the drain electrode 103, as being extended through the undoped GaN layer 107, a gate electrode 102 buried in the recess 111 as being brought into contact with the AlGaN electron donor layer 106 on the bottom surface thereof, and an SiN film 108 provided on the undoped GaN layer 107, in the region between the gate electrode 102 and the drain electrode 103.

Abstract: The present invention solves characteristic deterioration caused by peaking and a ground inductance, and provides a transimpedance amplifier capable of achieving a higher gain and a wider band. For this purpose, the transimpedance amplifier is configured to include a feedback circuit having two or more extreme frequencies and having a filter characteristic which is flat with respect to frequencies in a frequency region not more than a smallest extreme frequency among the extreme frequencies, which is flat with respect to frequencies in a frequency region not less than a largest extreme frequency among the extreme frequencies, and which has at least one negative inclination portion with respect to frequencies in a frequency region between the smallest and largest extreme frequencies.

Abstract: A seal structure is provided for an air conditioning unit mounted inside a passenger compartment of a vehicle and connected with pipes, which extends to the passenger compartment from an engine cabin through a pipe penetration opening of an isolation member. The seal structure includes an annular-shape pipe coupling wall formed at a case of the air conditioning unit and arranged at an outer side of a connection unit of the pipes, a first packing unit sandwiched between the pipe coupling wall and the connection unit, and a second packing unit between the isolation member and a front end of the pipe coupling wall. The second packing unit is bonded to both the first packing unit and the pipe coupling wall.

Abstract: A centrifugal multi-blade fan has multiple blades about a rotational shaft and draws in air along the rotational shaft and then blows the air approximately perpendicular to the rotational shaft to reduce wind noise. A scroll casing encloses the multi-blade fan and defines a scroll-shaped airflow passage for directing the air blown from the multi-blade fan. The scroll casing has an intake opening and an outlet opening at a scroll end, in a downstream scroll casing portion. The scroll casing expands such that a flow passage cross-sectional area on the airflow downstream side is larger than that on an airflow upstream side. A ratio of a blade length to a diameter of the multi-blade fan is greater than or equal to 0.12, and an outer scroll casing radius, relative to the rotational axis, increases as a logarithmic spiral, its expansion angle being from 3.3° to 4.8°.

Abstract: A seal structure is provided for an air conditioning unit mounted inside a passenger compartment of a vehicle and connected with pipes, which extends to the passenger compartment from an engine cabin through a pipe penetration opening of an isolation member. The seal structure includes an annular-shape pipe coupling wall formed at a case of the air conditioning unit and arranged at an outer side of a connection unit of the pipes, a first packing unit sandwiched between the pipe coupling wall and the connection unit, and a second packing unit between the isolation member and a front end of the pipe coupling wall. The second packing unit is bonded to both the first packing unit and the pipe coupling wall.

Abstract: In a predetermined range from a nose portion toward a scroll finish side in a scroll casing of a centrifugal blower, a first clearance dimension on a side of a suction port between an outer periphery of a centrifugal fan and a side plate of the scroll casing is set smaller than a second clearance dimension on a side opposite to the suction port between the outer periphery of the centrifugal fan and the side plate of the scroll casing. In addition, in the vicinity of the nose portion, a first wall part of the scroll casing on the side of the suction port protrudes toward a scroll finish side, from a second wall part of the scroll casing on the side opposite to the suction port.

Abstract: A centrifugal ventilator fan, which has improved fan performance and lower noise. A first outlet angle, on an upstream end of the fan, is less than a second outlet angle. Additionally, the first outlet angle is equal to zero degrees or greater and five degrees or less, while the second outlet angle is equal to thirty degrees or greater and forty five degrees or less. Furthermore, a first inlet angle, on an upstream end, is greater than a second inlet angle, on the opposite end. The first inlet angle is equal to sixty-five degrees or greater and ninety degrees or less, and the second inlet angle is equal to fifty-five degrees or more and seventy-five degrees or less.

Abstract: In a vehicle air conditioner with a heat pump refrigerant cycle, an interior heat exchanger of the refrigerant cycle is disposed in an air conditioning case to heat air in a heating operation and to cool air in a cooling operation. Further, a cooling heat exchanger for cooling air by evaporating the refrigerant is disposed so that a part of refrigerant circulating in the refrigerant cycle flows into the cooling heat exchanger at least in the heating operation. In addition, a decompression unit for decompressing refrigerant flowing to the cooling heat exchanger is disposed, and the decompression unit is opened even in the cooling operation. Accordingly, dehumidifying capacity of the air conditioner can be improved while the refrigerant cycle has a simple structure.

Abstract: An air conditioning unit of a vehicle air conditioner is disposed inside a dashboard approximately at a center portion in a vehicle right-left direction. Center face air outlets are provided in the dashboard opposite to right and left end sides of the air conditioning unit, and center face openings are provided in the air conditioning unit at right and left end sides in a vehicle right-left direction. Therefore, the center face outlets on the dashboard and the center face openings of the air conditioning unit can be connected by center face ducts each of which extends substantially straightly. Accordingly, pressure loss of air in the center face ducts can be reduced, and an air amount blown from the center face air outlet into the passenger compartment can be effectively increased.

Abstract: An air conditioning unit of a vehicle air conditioner is disposed inside a dashboard approximately at a center portion in a vehicle right-left direction. Center face air outlets are provided in the dashboard opposite to right and left end sides of the air conditioning unit, and center face openings are provided in the air conditioning unit at right and left end sides in a vehicle right-left direction. Therefore, the center face outlets on the dashboard and the center face openings of the air conditioning unit can be connected by center face ducts each of which extends substantially straightly. Accordingly, pressure loss of air in the center face ducts can be reduced, and an air amount blown from the center face air outlet into the passenger compartment can be effectively increased.

Abstract: In a vehicle air conditioner, a heater core is disposed in an air conditioning case to heat air so that conditioned air is obtained. The air conditioning case has a rear wall surface extending substantially in a vehicle width direction and in a vertical direction, and a foot opening portion is provided in the wall surface at an upper side position of the heater core to extend in an entire width dimension of the wall surface in the vehicle width direction. A foot air duct is connected to the wall surface around the foot opening portion, and extends downwardly to be tilted toward right and left sides. Foot air outlets are provided at a bottom end of the foot air duct to be opened downwardly. Thus, a flow resistance in a foot air-outlet passage can be reduced, and air can be uniformly blown toward a foot area.

Abstract: In an air conditioning apparatus, an air conditioning case has an upstream portion defining an air intake port through which air flows into the upstream portion substantially parallel to a core surface of a heat exchanger. The air intake port has a vertical dimension H1 that is smaller than a vertical dimension H2 of the core surface. The upstream portion has an air flow direction changing portion protruding inside of the upstream portion at a position opposite to the core surface above the air intake port. The air flow direction changing portion defines a clearance between the core surface and itself. A part of the air turned upward and further turned substantially parallel to the core surface strikes the air flow direction changing portion and flows toward the core surface through the clearance.

Abstract: In a vehicle air conditioner with a heat pump refrigerant cycle, an interior heat exchanger of the refrigerant cycle is disposed in an air conditioning case to heat air in a heating operation and to cool air in a cooling operation. Further, a cooling heat exchanger for cooling air by evaporating the refrigerant is disposed so that a part of refrigerant circulating in the refrigerant cycle flows into the cooling heat exchanger at least in the heating operation. In addition, a decompression unit for decompressing refrigerant flowing to the cooling heat exchanger is disposed, and the decompression unit is opened even in the cooling operation. Accordingly, dehumidifying capacity of the air conditioner can be improved while the refrigerant cycle has a simple structure.

Abstract: If a refrigerant leaks from an interior heat exchanger, an outside air mode is switched ON, and a first bypass channel is opened to supply air, not having passed through the interior heat exchanger, to a passenger compartment through a defroster opening portion, while also supplying air, having passed through the internal heat exchanger, to the passenger compartment through a foot opening portion. Consequently, air having passed through the first bypass channel and thereby containing a considerable quantity of outside air free from the leaked refrigerant is supplied to the upper side of the passenger compartment, while air having passed through the interior heat exchanger and thereby containing the leaked refrigerant is supplied to the lower side of the passenger compartment, which makes it possible to prevent driver inhalation of the refrigerant.