Sunstar Engineering Pte. Ltd.

Other

Sunstar Giken Kabushiki Kaisha

Sunstar Suisse S.a.

Uni-sunstar B.v.

Sumitomo Rubber Industries Limited

Shinji Okuda

Masaharu Takada

Yasuyuki Yoshimoto

Tsuyoshi Nagata

Takayuki Hattori

Hiroshi Maeda

Satoshi Tanaka

Shinya Mizone

Kenichi Uesaka

Jun Nishibayashi

Jun Ochi

Yoshiyuki Takahashi

Yoshiya Hattori

Makoto Shiokawa

Shinya Tabata

Kiyoshi Ikeda

Hiroko Yamazaki

Shinji Bessyo

Shinji Ochi

Hitoshi Fujii

Masao Shizuki

An electroconductive roller including an electroconductive cellular material layer, comprised of a polyurethane composition, which has an average foamed cell diameter not more than 100 &#x3bc;m and a variation &#x394;D of the foamed cell diameter not more than 50 &#x3bc;m. The electroconductive roller has a hardness variation &#x394;Hs not more than 8 degrees and a circumferential non-uniformity index R/Rin an electric resistance thereof not more than 1.3. The electroconductive cellular material layer is made of a thermosetting one-part polyurethane composition. And the polyurethane composition is cured instantly at a temperature not less than a thermosetting critical temperature for curing thereof, after it is foamed by a mechanical foaming method.

Electroconductive roller

A piston pump has a piston and cylinder. A gas is supplied into the cylinder during and/or after a suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material to thereby discharge the gas and high-viscosity material into a pipe. Use is made of piston pumpsA andB, each including a cylinder and a piston which reciprocally moves within the cylinder to effect the suction stroke and discharge stroke, and a membrane gas generatorto which compressed air is supplied to generate a gas. A low-pressure gas generated by the membrane gas generatoris supplied into each piston pump and the high-viscosity material is introduced into the gas.

Method and apparatus for mixing a high-viscosity material into a gas

A hollow bead of high quality is applied and molded into a shape corresponding to and following a shape of an applying position onto which the bead is to be applied. A bead-molding apparatus includes a discharging device of a double nozzle structure comprised of an inner nozzle and an outer nozzle, a highly viscous material feed unit for feeding a highly viscous material that is fluid in a form of a stream in a high speed flow region and can retain a shape into which it is applied and molded in a low speed flow region, a manipulator disposed so as to transfer the discharging device mounted thereon to a desired position, and a controller for controlling overall operations of the apparatus. The discharging device is controlled so as to move along the applying position of a member while feeding gases thereto from the inner nozzle and discharging the highly viscous material thereto from the outer nozzle.

Method and apparatus for molding bead

A speaker edge is made of a thermosetting composition consisting of a polyurethane prepolymer and an inactivated solid polyamine as a latent hardener. A gas is dispersed in the thermosetting composition, prior to feed into a mold, so that it can foam and solidify to give the speaker edge. In a method of making the speaker edge, the composition will be injected into a female mold segment heated below the critical thermosetting temperature, foaming the composition. Then placed in the female segment is a male segment heated above the critical temperature, causing the ingredients to react with each other to solidify in the mold. An apparatus for making the speaker edge from the composition has: a device for intake of a gas, another device for injecting the composition into the gas, another device for mechanically dispersing the gas throughout the composition, still another device for injection of this gas-containing composition into a female mold segment, a further device for placing a male segment in the female segment, and a still further device for solidifying the composition, while foaming it.

Speaker edge, method of foam-molding the same, apparatus for foam-molding the same, speaker edge foam-molding system, and speaker employing the speaker edge

A piston pump has a piston and cylinder, the piston being adapted to reciprocally move within the cylinder to effect a suction stroke and discharge stroke. A gas is supplied into the cylinder during and/or after the suction stroke of the piston pump, and a high-viscosity material is supplied into the cylinder after the suction stroke. A discharge stroke of the piston pump is effected after completion of supply of the high-viscosity material in the cylinder to thereby discharge the gas and high-viscosity material into a pipe. A first step introduces a high-viscosity material into a gas, a second step pressurizes, by a pump, a combination of the high-viscosity material and the gas transferred from the first step, a third step passes the combination in a pressurized state through a dispersing pipe to disperse the gas into the high-viscosity material to produce a mixture, and a fourth step discharges the mixture to effect foaming. Use is made of piston pumps A and B, each including a cylinder and a piston which reciprocally moves within the cylinder to effect a suction stroke and discharge stroke, and a membrane gas generator to which compressed air is supplied to generate a gas. A low-pressure gas generated by the membrane gas generator is supplied into each piston pump and the high-viscosity material is introduced into the gas.

A method for the production of a sunroof includes a step for applying adhesive into an edge section and a molding groove along the edge section of glass disposed accurately on a lower mold. A foaming material is applied in the molding groove at a peripheral portion of the glass outside the applied adhesive. The adhesive and the foaming material applied on the glass are molded by connecting the lower mold to an upper mold with a frame, and then heated a step of heating in a state in which the molds are pressed in a vertical direction. The lower and upper molds are detached, and a sunroof is discharged as a finished product.

Method for the production of an opening-closing member and a sunroof produced therefrom for use with vehicle

Low-pressure gas is mixed in a viscous material. The flow of the gas can be easily controlled so that the dispersion of the mixing ratio of the viscous material to the gas may be confined within a small tolerance and fine bubbles may be uniformly distributed in the interior of the viscous material. The gas is mixed in the viscous material by a first pump, from which a mixture of the gas and the viscous material is delivered. Pressure is applied to the mixture by a second pump. The gas is distributed in the interior of the viscous material by allowing the mixture under pressure to pass through a conduit assembly. The viscous material is foamed when the mixture is discharged from a nozzle through a discharge pipe.

Apparatus for foaming a viscous material

The invention resides in mixing low-pressure gas in a viscous material. The flow of the gas can be easily controlled so that the dispersion of the mixing ratio of the viscous material to the gas may be confined within a small tolerance and fine bubbles may be uniformly distributed in the interior of the viscous material. The gas is mixed in the viscous material by means of a first pump 42, from which a mixture of the gas and the viscous material is delivered. Pressure is applied to the mixture by means of a second pump 51. The gas is distributed in the interior of the viscous material by allowing the mixture under pressure to pass through a conduit assembly 61. The viscous material is foamed when the mixture is discharged from a nozzle 73 through a discharge pipe 71.

Method of and apparatus for foaming a viscous material

A solar-cell module and a process for producing the same are disclosed. The solar-cell module comprising a solar-cell panel comprising a light-transmitting plate having a first surface and a second surface opposite to the first surface, and solar-cell elements disposed on the second surface; a frame disposed around the entire periphery of the solar-cell panel and having a flange on which the solar-cell panel is supported on the second surface while the first surface is free; and an adhesive layer disposed between the second surface of the solar-cell panel and the flange of the frame, wherein the adhesive layer comprises a reactive hot-melt adhesive comprising as a major component a urethane prepolymer obtained by reacting a polyhydroxy compound with an excess amount of a polyisocyanate compound. The solar-cell module can be produced easily and is excellent in quality and reliability.

Solar-cell module and process for producing the same

A method of detecting breakage or breakage of a continuous bead of fluid material, for example, a coating material, during the discharge thereof from an applicator nozzle, which comprises the steps of providing the applicator nozzle with a vibration sensor operable to detect vibrations occuring in the applicator nozzle and to generate a vibration signal, indicative of the detected vibration. The vibration signal undergoes a change in level when the vibrations are actually detected by the vibration sensor and the change in level of the vibration signal is compared with a reference amplitude level. Only when the amplitude level of the vibration signal exceeds the reference amplitude level, the change in amplitude level of the vibration signal provides an indication of the actual occurrence of the vibrations in the applicator nozzle.

Method of detecting breakage of a bead of fluid material

A method of and an apparatus for applying a paint, wherein elastic paint-coating means capable of being soaked with a paint are used. The paint-coating means are soaked with a paint and moved along the surfaces of an object to be coated with the paint while being pressed against these surfaces. The paint-coating means are mounted on the main bodies of paint-coating members, which are moved alternately to a first prescribed position where a paint-supplying means is disposed and to a second prescribed position where the object to be coated with the paint is disposed. When the paint-coating members are closed in the first prescribed position so as to hold the paint-supplying means between the paint-coating means, the paint-coating means are pushed against the paint-supplying means so that the paint may soak into the paint-coating means.

Method of and apparatus for applying a paint

An apparatus for inspecting a coating formed on a workpiece, comprising a light emitter and a light receiver positioned on respective sides of the workpiece; an amplifier for amplifying a detection signal from the light receiver and for generating an amplified output signal; a comparator for comparing the amplified output signal with a predetermined level thereby to generate a control signal indicative of a difference between the amplified output signal and the predetermined level; a zero adjustment for adjusting the amplified output signal to a zero value; and a tuning circuit for tuning the amplified output signal, which is generated from the amplifier when the workpiece to be inspected has not yet been formed with the coating, to a predetermined tuned value. The tuning circuit is operable to vary the amplification factor of the amplifier and also to the intensity of light emitted by the light emitter. In place of the tuning circuit, an amplification factor setting citcuit may be used for sampling the light transmissivity of the workpiece and for selecting one of amplification factors according to the result of sampling. After the formation of the coating on the workpiece, the amplified output signal may decrease with a decrease of the light transmissivity of the workpiece, and the coating condition is determined depending on whether or not the amplified output signal is lower than the predetermined level.

Growing community of inventors

Hyogo, Japan

Shinji Okuda