Abstract: An automotive in-tank fuel hose which has excellent flexibility and is highly resistant to sour gasoline and to hydrolysis. The automotive in-tank fuel hose for installation in a fuel tank comprises a single layer structure formed by at least one of (A) a thermoplastic polybutylene terephthalate elastomer containing a dimer acid moiety and (B) a thermoplastic polybutylene naphthalate elastomer containing a dimer acid moiety. The automotive in-tank fuel hose follows a deformation of the fuel tank and absorbs vibration caused by a fuel pump.

Abstract: A fuel hose which satisfies low-permeability requirements in conformity with stringent regulations against vapor emission of fuel gases, is halogen-free and has excellent hydrolysis resistance, inter-layer adhesiveness and low-temperature flexibility. The fuel hose comprises: an innermost layer (1) comprising a thermoplastic polyester elastomer and having a flexural modulus in a predetermined range; an intermediate layer (2) comprising a polyester resin and provided around the innermost layer (1); and an outermost layer (3) comprising a thermoplastic polybutylene terephthalate elastomer and provided around the intermediate layer (2).

Abstract: A fuel hose which is less permeable to an automotive fuel and highly resistant to a sour gasoline. The fuel hose comprises at least one layer including an innermost layer which comprises a thermoplastic polybutylene terephthalate elastomer containing a dimer acid moiety.

Abstract: A fuel hose which is less permeable to an automotive fuel and highly resistant to a sour gasoline. The fuel hose comprises at least one layer including an innermost layer which comprises a thermoplastic polybutylene terephthalate elastomer containing a dimer acid moiety.

Abstract: An antenna device having a high gain is presented. The device includes an antenna element, a variable capacitor disposed closely to the antenna element and connected to the antenna element in series or parallel to form a resonance circuit, a tuning voltage supply terminal for supplying a tuning voltage for varying a capacitance of the variable capacitor, and an signal power terminal capable of at least one of sending a signal power to the resonance circuit and receiving a signal power from the resonance circuit.

Abstract: A fuel hose which satisfies low-permeability requirements in conformity with stringent regulations against vapor emission of fuel gases, is halogen-free and has excellent hydrolysis resistance, inter-layer adhesiveness and low-temperature flexibility.

Abstract: A plurality of individually corresponding heaters and temperature sensors are provided along with a plurality of a PID control means. An average temperature/gradient temperature calculating means calculates the average temperatures of the temperatures measured by the temperature sensors and the gradient temperatures based on the measured temperatures. Each of the PID control means outputs an operation signal so that the average temperatures or gradient temperatures may be made equal to the desired values. A distributing means distributes the operation signal from each of the PID control means to each heater so that control by the PID control means may produce no effect on the control of the other PID control means.

Abstract: The present invention provides a low cost microstrip line with low loss and a microwave device using the microstrip line. The microstrip line comprises (a) a dielectric substrate for general purpose use with relatively high loss in a microwave frequency, (b) a strip conductor foil disposed on the front surface of the substrate, (c) a metal plate for grounding disposed in contact with the back of the dielectric substrate, and (d) an air layer formed on a portion of the metal plate for grounding, the portion facing to the strip conductor foil.

Abstract: An antenna device having a high gain is presented. The device includes an antenna element, a variable capacitor disposed closely to the antenna element and connected to the antenna element in series or parallel to form a resonance circuit, a tuning voltage supply terminal for supplying a tuning voltage for varying a capacitance of the variable capacitor, and an signal power terminal capable of at least one of sending a signal power to the resonance circuit and receiving a signal power from the resonance circuit.

Abstract: The invention relates to a filter device, and is intended to prevent drastic changes of output modulation signal and assures the performance as modulator if output modulation signal is transmitted and stopped frequency by using TDMA in communication control. To achieve the object, the invention comprises a shift register 1, a plurality of memories 2 connected to this shift register 1 and increased in the bit width of input address by one bit each, and a selector 3 for selecting outputs from these plurality of memories 2, in which the output of the shift register 1 is used as a higher side address of each one of the memories 2, a lower side address of each one of the memory addresses is common, the bit width of the higher side address increases by one bit each starting from one bit, and addresses are assigned sequentially from the lower side of the higher side address of the memories 2 depending on the shift from the lowest side bit of the shift register 1.

Abstract: A filter comprises an inductor, a first variable capacitance diode, a second variable capacitance diode having nearly identical characteristic as the first variable capacitance diode, a control terminal for applying voltage to the first and the second variable capacitance diodes, an input terminal, an output terminal and a signal line between the input terminal and the output terminal. A cutoff frequency is controllable with the voltage applied to the control terminal. The variable frequency filter which can receive a large signal has reduced size due to a structure in which the first and the second variable capacitance diodes having nearly identical characteristics are connected either in series or in parallel with their polarities reversed against each other.

Abstract: A hose with a sticking layer, whose end is connected to an inserting section of a cylindrical member and which is provided with a resin hose main body composed of a resin layer having a monolayered structure or a multilayered structure and with a sticking layer mainly containing rubber or resin applied to at least an inner circumference of one end or both ends of the resin hose main body, and its connecting structure are provided.

Abstract: A tube connector device for connecting at least one first tube which is disposed on one side of a panel and at least one second tube which is disposed on the other side of the panel, the tube connector device including (a) at least one tubular connector for connecting the first tube and the second tube, such that the first tube is attached to one open end of the connector while the second tube is attached to the other open end, (b) a connector holder for holding the connector such that the connector holder is fitted on an external circumferential surface of the above-indicated other open end of the connector, and (c) a fixture for attaching the connector holder to the panel such that the connector holder is fitted into a communication hole formed through the panel, and wherein the connector holder is made of a rubber or a thermoplastic elastomer, and includes a tubular body having an axial hole engaging the above-indicated other open end, and a flange portion extending outwardly from the tubular body in a rad

Abstract: A quick connector comprises a tubular-shaped female member, a tubular-shaped male member, and an engager member which comprises a "C" ring-shaped and tapered stopper whose diameter can be increased in said annular-shaped concave, and which has the smaller diameter ends having the small diameter at the inner side of said female member and having the large diameter at the side of said opened flange to engage said engager projection, and which has the larger diameter ends having the diameter larger than that of said opened flange of said female member to face the inside end surface of said opened flange; a regulator which is installed in the axial direction to said stopper, and which is projected in the centrifugal directions than do the larger diameter ends of said stopper, and which is brought into contact with the inner peripheral surface of said annular-shaped concave to regulate the displacement in the radial direction of said stopper; and a linkage for connecting said stopper and said regulator.

Abstract: In a video signal apparatus, a carrier signal generating circuit includes a VCO for generating a signal having a frequency at least twice that of a carrier signal necessary for conversion to a lower band with a sub-carrier in an NTSC system, a one-half divider circuit for dividing the VCO frequency signal by two, a delayed flip-flop circuit for receiving the divided signal and the sub-carrier signal to generate a difference frequency signal, a 1/40 divider circuit for dividing the Q output, a phase comparator circuit for comparing the phases of the 1/40 divided signal and the horizontal synchronizing signal to output a phase difference, a frequency discriminator circuit for comparing the phase of the flip-flop output with the frequency-divided output of the horizontal synchronizing signal to output a frequency error, and a circuit for converting the output of the phase comparator circuit and the frequency error into DC voltages and applying their sum as a control voltage for the VCO.

Abstract: A quick connector includes a male member, a female member and an engager claw member. The male member includes a ring-shaped engager. The female member includes a receiver hole having an opening into which the male member is inserted, a ring-shaped stopper surface disposed oppositely to the opening, and a regulatory inner peripheral surface extending from the periphery of the stopper surface in an axial direction. The engager claw member disposed in the receiver hole of the female member, and it includes a ring-shaped base disposed movably in an axial direction, arms extending from the base to the opening in an axial direction and adapted for being elastically deformable in a radial direction, and a claw disposed so as to extend from each of the arms and adapted for engaging with the engager of the male member.

Abstract: A quick connector includes a male member, a female member, an engager claw member and an urging member. The male member includes an engager at an end. The female member includes a receiver opening, and a inner peripheral surface at least. The engager claw member is disposed relatively movably in an axial direction in the female member, and includes a flange, an engager claw adapted for engaging with the engager of the male member, and a projection adapted for engaging with the inner peripheral surface of the female member at least. The urging member is interposed between the female member and the flange of the engager claw member, and urges the engager claw member outward to the receiver opening of female member. The projection of the engager claw member engages with the inner peripheral surface of the female member, and simultaneously the engager claw of the engager claw member engages with the engager of the male member.

Abstract: A connector includes a first member and a second member. The first member includes a conduit having a ring-shaped projection formed at a rear end and a tubular body having first engagers and second engagers. The second member has a tubular shape, and includes third engagers and a presser formed adjacent to a rear end. The ring-shaped projection of the conduit engages with the first engagers of the tubular body, thereby preventing a relative movement between the conduit and the tubular body in an axial direction in the first member. Further, the second engagers of the tubular body engage with the third engagers of the second member, thereby preventing a relative movement between the first member and the second member in an axial direction in the connector.