Fuji Photo Film Company, Limited

Fujifilm Corporation

Renesas Electronics Corporation

Yoichi Hayashi

Akira Mizuta

Iwao Komaki

Shinichi Kato

Shinji Watanabe

Nobuyuki Tada

Akihisa Kita

Kyohisa Uchiumi

Shinichiro Okada

Tetsuya Fukumoto

A hard disk inspection apparatus comprises a disk holding device which holds a hard disk; a light source which generates a light that illuminates an inspection region portion of a hard disk that is held by the disk holding device; a light guide which has a branched shape and guides a light from the light source to a plurality of light projecting parts; and an image pickup device which takes an image by receiving reflected light from the inspection region portion; wherein an illumination light is shone onto the inspection region from plural courses by shining the illumination light that is guided by the light guide onto the inspection region front the plurality of light projecting parts.

Hard disk inspection apparatus

An inverter apparatus is for correcting deviations among current detectors of a three-phase motor. The inverter apparatus includes bidirectional switching elements that have on and off states in the cases in which there are 1 and 0 mean on- and off-states. The states are alternately repeated by controlling the switches, and measurement for correcting the deviations among the current detectors are obtained in the state Currents have the same amplitude flow on a U phase and a V phase. In the state of normal use, the inverter apparatus is operated by correcting detected current values based on the measurement data.

Inverter apparatus and a semiconductor device used for the same

An inspection device of a tape reel comprises a first inspection deviceconsisting of a light projector, a mirror, and a light receiver, a second inspection deviceconsisting of a light projector, a mirror, and a light receiver, and a rotatorthat rotates a tape reel, and parallel lights R, Rirradiated from the light projectorare reflected by the mirror, to be made incident on inner surfaces of flangesof the tape reel, whereas parallel lights R, Rirradiated from the light projectorare reflected by the mirrorto be made incident on the inner surfaces of the flangesof the tape reel, and parallel lights Rto Rthat pass the inner surfaces of the flangesare received by the light receiveror the light receiver. Thereby, an inspection device capable of inspecting a position of each flange of the tape reel, distance between flanges, and an inclined angle of each flange in a un-contact state accurately at high speed, an inspection method for the same, and a positioning device of a member to be positioned capable of positioning the position of the flange accurately are provided.

Inspection device of a tape reel

To provide a winding appearance inspection device of a tape capable of gathering a line speed in an inspection process, as well as capable of inspecting a winding appearance of the tape wound on a roll body core, even in a reel having a flange formed in a roll body core (a roll body core). Winding appearance inspection deviceserves as a device that evaluates the winding appearance of the tape such as film T or the like wound on roll body core H, comprising light projectorthat irradiates a light along winding surface S of the tape such as film T or the like that at least partially passes near the roll body core H, and receiverthat receives the light.

Inspection device of winding appearance of tape and improvement processing method for the same

In the tape winder for winding a tape on a reel to form a tape roll, a nozzle which blows a gas toward an outer peripheral surface of the tape roll at a winding time of the tape is fixed on a slider, which is slidably supported on a rail. In this way, the nozzle is supported movably forward and backward with respect to the tape roll. Moreover, the nozzle is pressed toward the tape roll by an air cylinder with a constant pressing force. Thus, the nozzle is allowed to accurately follow an outer peripheral surface of the tape roll, and a constant pressure can be applied to the outer peripheral surface of the tape roll. Consequently, the tape can be wound with an adequate winding tightness.

Tape winder

A magnetic disc cartridge includes a casing formed of upper and lower shell halves mated together, a disc-like recording medium supported for rotation in the casing and a liner fixed to each of the inner surfaces of the upper and lower shell halves by ultrasonic welding by use of an ultrasonic welding horn. The liner has an outer contour defined by an outer peripheral edge, a central opening defined by an inner peripheral edge, and a slit-like cutaway portion defined by a pair of linear edges extending between the outer peripheral edge and the inner peripheral edge. The ultrasonic welding horn is provided with a welding pattern in the form of a protrusion pattern formed on a welding face thereof over the entire welding area in which the ultrasonic welding horn is brought into contact with the liner, and the liner is welded to the inner surface of the shell half over the entire area of the liner along the welding pattern.

Magnetic disc cartridge, method of manufacturing the same and method of cleaning liners of the same

A magnetic tape cartridge comprises: a cartridge case including an opening portion, an upper cartridge and a lower cartridge, the upper cartridge having a supporting shaft; a reel, around which a magnetic tape can be wound, accommodated in the cartridge case, wherein the magnetic tape can be drawn out from the opening portion of the cartridge case; a lid pivotably attached to the supporting shaft in order to open and close the opening portion; and a lid spring being a torsion coil spring having a coil portion through which the lid spring is attached to the supporting shaft so as to urge the lid to close the opening portion. In the magnetic tape cartridge, it is preferable that the coil portion is a compressive spring. Alternatively, it is also preferable that one leg portion of the lid spring is supported by a frame formed on at least one of the upper cartridge and the lower cartridge, and the other leg portion of the lid spring is supported by a protruding portion provided for the lid so that a portion of the other leg portion adjacent to an end portion thereof is brought into contact with the protruding portion.

Magnetic tape cartridge

In the method and apparatus for assembling a magnetic tape cartridge, a plurality of assembling stations, each of which includes an assembling robot for assembling the respective parts of a magnetic tape cartridge , respectively comprise pallet delivery mechanism capable of delivering sequentially a pallet on which an upper cases can be placed. The pallet comprises front and rear reel brake hold mechanism respectively capable of holding front and rear reel brakes against the energizing forces of brake springs in such a manner that the front and rear reel brakes retreat from the installation area of the reel , lid spring hold mechanism capable of holding the lid engaging portion of a lid spring in such a manner that the lid engaging portion is not in engagement with a lid , reel hold mechanism capable of holding a reel on the upper case side against the energizing force of a reel spring , and lower case hold mechanism capable of holding a lower case on the upper case side. Accordingly, it is possible to obtain a magnetic tape cartridge having an excellent assembling accuracy with high productivity.

Method and apparatus for assembling magnetic tape cartridge

A magnetic tape cartridge has a reel which includes an upper reel and a lower reel which are plastic moldings, the lower reel being welded to the upper reel by ultrasonic welding. In the shoulder of a boss section of the upper reel, a plurality of recesses are formed in such a manner that the recesses are radially outwardly extended from the center of rotation of the upper reel, and on the surface of the lower reel which are confronted with the recesses, a plurality of welding ribs are formed so as to be engaged with the bottoms of the recesses.

Magnetic tape cartridge having a lower reel recess which is labyrinth-engaged with a stopper ring barrier

It is an object of the invention to provide a method and a device which can manufacture, by ultrasonic welding, a reel for use in a magnetic tape cartridge with an improved yield rate, while not only restricting the deformation of workpieces but also preventing the products from varying in quality. At least one of the amplitude of an oscillator power source 80 and pressure to be applied to workpieces in an ultrasonic welding operation are set high in the early stage of the ultrasonic welding operation and are then switched into lower levels in the middle of the ultrasonic welding operation when the workpieces, that is, upper and lower reels 4 and 5, begin to melt together.

Ultrasonic welding device and method, and a magnetic tape cartridge reel

A method and apparatus for extracting a molded product wherein the molded product, specifically, a shutter molded of a synthetic resin with a very small thickness, from an injection molding die at a high speed without malfunction or deformation of the molded product. The apparatus includes as essential components an opposing pair of chucking members for supplementarily supporting a molded product in the clamped state while restrictively locating it at a predetermined position, and a suction pad located in alignment with the predetermined position of the molded product for grasping the latter by the action of suction. In an alternate embodiment, two chuck arms having respective suction pads at their ends are moved into contact with the shutter from opposite sides. With the invention the molded product can completely be extracted from an injection molding die in cooperation of the chucking members with the suction pad.

Method for extracting molded product from injection molding die

A molded product extraction apparatus in which a molded product formed using an injection molding process is extracted from a mold while being sandwiched. Surface portions for contacting the molded product are provided on the forward ends of a pair of opposite chuck arms disposed so as to be movable relative to each other to thereby hold the molded product, and elastic members of silicone foam rubber including continuous bubbles connected with each other are formed inside the surface portions. With the invention, it is possible to extract a molded product from a mold at a high speed without deforming the molded product.

Growing community of inventors

Kanagawa, Japan

Yoichi Hayashi