Abstract: A fluid pressure actuator includes an output cylinder, a fluid pressure pump, an electric motor, a first output cylinder passage, a second output cylinder passage, a return passage and a swash plate control cylinder. The output cylinder includes a first output cylinder chamber, a second output cylinder chamber and an output piston arranged between the first output cylinder chamber and the second output cylinder chamber. The fluid pressure pump includes a first supply and discharge port, a second supply and discharge port and a swash plate for changing displacement of the fluid pressure pump. The electric motor drives the fluid pressure pump. The first output cylinder passage connects the first output cylinder chamber and the first supply and discharge port. The second output cylinder passage connects the second output cylinder chamber and the second supply and discharge port. The return passage is connected to an accumulator for accumulating working fluid leaked from the fluid pressure pump.

Abstract: The present invention provides an ophthalmic pharmaceutical composition containing acetylated hyaluronic acid and a pharmacologically acceptable carrier. Preferably, the average molecular weight of the acetylated hyaluronic acid is 10,000 to 1,000,000, and the acetyl group substitution number is from 2.0 to 4.0. In a preferred embodiment, this ophthalmic pharmaceutical composition is used in the treatment or prevention of dry eye, and in an even more preferred embodiment it is a dry-eye instillation.

Abstract: In a voltage controlled oscillation circuit including a cascade connection of a voltage-to-current conversion circuit (310) for generating an input voltage converted current which is a current corresponding to an input voltage and a current controlled oscillation circuit (120) of which an oscillation frequency varies according to the input voltage converted current, the voltage-to-current conversion circuit (310) includes a first current source for outputting a current in proportion to the input voltage and a plurality of second current sources for outputting a current in proportion to a voltage obtained by shifting the input voltage. Then, a current obtained by adding a current output from the first current source and currents output from the plurality of current sources is output as the input voltage converted current to the current controlled oscillation circuit (120).

Abstract: A semiconductor integrated circuit having jitter measuring function includes a slicer (11), a T/V converter (12), an A/D converter (13), a processor (14), a multiplexer (15), and a correction section (16). The slicer (11) binarizes an input signal to generate a data signal. The T/V converter (12) outputs a voltage corresponding to the data length of an input signal. The multiplexer (15) selects the data signal or a reference signal as the input signal to the T/V converter (12). The A/D converter (13) converts the output voltage of the TN converter (12) to digital data. The processor (14) measures jitter in the input signal to the T/V converter (12) in accordance with the digital data. The correction section (16) compares the output voltage of the T/V converter (12) produced where the reference signal has been selected by the multiplexer (15) with a predetermined voltage, and corrects the output characteristics of the T/V converter (12) according to the comparison results.

Abstract: The invention provides a dovetail structure of a fan which attaches the fan 20 having an inlet hub diameter smaller than an outlet hub diameter to a portion around a discoid disc 10 rotationally driven by a turbine. The disc 10 has a plurality of main dovetail grooves 12 extending in parallel to an axis 1 of a rotation axis from a leading edge to a trailing edge thereof. The fan 20 has a main dovetail portion 22 fitted to the main dovetail groove 12, and a sub engagement portion 24 for supporting a front centrifugal force. Further, the dovetail structure is provided with a spin cone 30 engaging with the sub engagement portion 24 so as to be capable of transmitting the front centrifugal force to the disc 10.

Abstract: The present invention provides an ophthalmic pharmaceutical composition containing acetylated hyaluronic acid and a pharmacologically acceptable carrier. Preferably, the average molecular weight of the acetylated hyaluronic acid is 10,000 to 1,000,000, and the acetyl group substitution number is from 2.0 to 4.0. In a preferred embodiment, this ophthalmic pharmaceutical composition is used in the treatment or prevention of dry eye, and in an even more preferred embodiment it is a dry-eye instillation.

Abstract: [PROBLEMS] A novel process which can simply prepare a crosslinked hyaluronic acid gel having a small crosslinking agent content and exhibiting excellent viscoelasticity is provided. [MEANS TO SOLVE] A method of producing cross-linking hyaluronic acid gel, comprising stirring and mixing a mixture containing 20 W/V % or more of hyaluronic acid, a crosslinking agent and water under acidic or alkaline condition.

Abstract: A polysiloxane having a phosphorylcholine group represented by the following general formula (1). To develop a method to obtain a polysiloxane having a phosphorylcholine group with ease and great versatility and provide a polysiloxane having a phosphorylcholine group in order to obtain a polysiloxane that has a wide range of application as a biocompatible material and a cosmetic material.

Abstract: A double-walled damping structure includes two parallel face plates 1 and 2, a plurality of ribs 3 and 4 extending in the same direction to connect the two parallel face plates 1 and 2, wherein in a section taken perpendicularly to the direction of extension of the ribs 3 and 4, all or most of the holes defined by the adjacent two ribs and the face plates are trapezoidal. The structure less transmits vibration, and is capable of further increasing a damping effect when a damping material is attached.

Abstract: A production method of dry water containing an aqueous ingredient coated with a hydrophobic powder to form a powder state capable of liquefying upon embrocation at the time of use, wherein the dry water is produced by charging a hydrophobic powder and an aqueous ingredient into a hollow container forming a hydrophobic enclosed space in the inside thereof, followed by agitating at a high speed in the enclosed hydrophobic hollow container to form the aqueous ingredient to fine aqueous droplets, and then allowing the surfaces of the fine aqueous droplets to be uniformly adsorbed with the hydrophobic powder, whereby the dry water in the form of a powder state, but is capable of being liquefied upon embrocation at the time of use to be simply produced in a large scale.

Abstract: A double-walled damping structure includes two parallel face plates 1 and 2, a plurality of ribs 3 and 4 extending in the same direction to connect the two parallel face plates 1 and 2, wherein in a section taken perpendicularly to the direction of extension of the ribs 3 and 4, all or most of the holes defined by the adjacent two ribs and the face plates are trapezoidal. The structure less transmits vibration, and is capable of further increasing a damping effect when a damping material is attached.

Abstract: Provided is an energy absorbing member which makes it possible to induce contraction and deformation into a form of bellows, with Euler's buckle being restrained. An energy absorbing member comprises a hollow extrusion which is made of an aluminum alloy and has an outer portion and an inner rib connected to the outer portion, and the radius of the corner where the rib and the outer portion are connected to each other is not more than a half of the thickness of the rib. A similar energy absorbing member has plural inner ribs which are connected to the outer portion and cross each other, and the radius of the corner where the ribs cross each other is 1 mm or less.

Abstract: Low molecular weight acetylhyaluronate has the following characteristics:intrinsic viscosity: 50 to 200 cm.sup.3 /gsubstitution degree of acetyl group: 2.6 to 3.6 (excluding N-acetyl group)A skin-softening composition is mainly composed of this low molecular weight acetylhyaluronate. It can exhibit excellent skin-softening effect and moisturizing effect, while appropriately suppressing the thread-forming ability inherent in hyaluronic acid. A method of manufacturing acetylhyaluronate comprises the steps of suspending hyaluronic acid powder in an acetic anhydride solvent and then adding concentrated sulfuric acid thereto to effect acetylation. A method of purifying acetylhyaluronate comprises the steps of adding raw acetylhyaluronate to an aqueous acetone solution, adding and dissolving sodium lactate therein, and then adding highly concentrated acetone thereto to precipitate highly pure acetylhyaluronate. Acetylhyaluronate having highly purity can be obtained inexpensively.

Abstract: A cushion structure of seat has a major holding part constructed of foamed polyurethane. A wadding is applied to a front surface of the major holding part. The wadding is constructed of down and feather which are bound with a binder. The major holding part and the wadding which are thus united are put in a bag-shaped outer skin.

Abstract: A system and method for controlling the opening angle of a throttle valve installed within an engine for a vehicle, in which the rate of change of the opening angular position of the throttle valve is calculated as a substantially cubic function of a relative rate of change in an angular position of an accelerator pedal, so that the speed of vehicle is held approximately constant when there is no consistent change in the angular position of the accelerator pedal and the speed of vehicle changes quickly as the rate of change of the angular position of the accelerator pedal increases.

Abstract: An apparatus responsive to a change in the position of an accelerator pedal for controlling movement of a throttle valve situated within an induction passage. The apparatus includes a control circuit which determines new and minimum values for the position of the accelerator pedal and determines a demand value corresponding to a setting of the position of the throttle valve as a function of the difference between the new and minimum values. The control circuit substitutes the new value for the minimum value when the accelerator pedal remains released and placed at the same position for a predetermined time.

Abstract: An item selection signal input system includes a sheet file carrying a plurality of item lists, each of the item lists being provided with item indicia for marking switches formed on a keyboard panel. The sheet file is removably wound around a bidirectionally rotatable drum through the use of a claw provided on the bidirectionally rotatable drum and an engaging member secured to one end of the sheet file. When different key markings are required, the sheet file is demounted from the bidirectionally rotatable drum, and a new sheet file is mounted on the bidirectionally rotatable drum through the use of the claw and the engaging member.

Abstract: An engine control apparatus comprises a fuelcut control circuit for terminating delivery of fuel to the engine when the throttle valve opens at an angle less than a predetermined value and the transmission is in high gear or in neutral. The apparatus also comprises means for preventing the fuelcut control circuit from terminating fuel delivery to the engine when the pressure stored in a brake booster increases to a level insufficient for application of braking to the vehicle.

Abstract: A navigation information announcing system for a motor vehicle comprises a tape player, circuitry for measuring the distance actually travelled by the vehicle, circuitry for reproducing distance information pre-recorded on a magnetic tape, and a comparator. A distance indicated by a reproduced datum from a magnetic tape is compared with the distance actually travelled so that the tape player performs a pause operation until the two distances equal each other. When these distances equal each other, the normal playback operation is reestablished so as to reproduce oral information pre-recorded on the magnetic tape, supplying the vehicle driver with directional information.