Abstract: A power semiconductor module includes an insulating substrate, conductor patterns and a power semiconductor element. The conductor patterns are formed on both surfaces of the insulating substrate. The power semiconductor element is mounted on the conductor patterns. The conductor patterns include an anode terminal connection portion and a cathode terminal connection portion. A circuit is formed such that a current that flows between the anode terminal connection portion and the cathode terminal connection portion via the power semiconductor element flows on the both surfaces of the insulating substrate.

Abstract: An objective of the present invention is to provide a document creation assistance server and document creation assistance method which are capable of efficiently acquiring information necessary to write a specification or other such documents, and of generating a document from the acquired information.

Abstract: A power semiconductor module includes an insulating substrate, conductor patterns and a power semiconductor element. The conductor patterns are formed on both surfaces of the insulating substrate. The power semiconductor element is mounted on the conductor patterns. The conductor patterns include an anode terminal connection portion and a cathode terminal connection portion. A circuit is formed such that a current that flows between the anode terminal connection portion and the cathode terminal connection portion via the power semiconductor element flows on the both surfaces of the insulating substrate.

Abstract: An objective of the present invention is to provide a document creation assistance server and document creation assistance method which are capable of efficiently acquiring information necessary to write a specification or other such documents, and of generating a document from the acquired information.

Abstract: A disc transport apparatus for detecting a disc-shaped recording medium with specified diameter, transporting the disc-shaped recording medium to a chucking position, but not transporting a disc-shaped recording medium with different diameter, when detected, to the chucking position includes a recording medium mount section capable of mounting a first disc having a first diameter and a second disc having a second diameter that is smaller than the first diameter, an optical detection unit that uses a light receiving section for receiving reflected light from a detection target in response to light emitted from a light emitting section and that is provided at a position opposite a disc having the first diameter when the disc is mounted on the recording medium mount section and at a position not opposite a disc having the second diameter when the disc is mounted on the recording medium mount section, and a control section for determining whether a disc is mounted based on a detection result of the optical detect

Abstract: A disc transport apparatus for detecting a disc-shaped recording medium with specified diameter, transporting the disc-shaped recording medium to a chucking position, but not transporting a disc-shaped recording medium with different diameter, when detected, to the chucking position includes a recording medium mount section capable of mounting a first disc having a first diameter and a second disc having a second diameter that is smaller than the first diameter, an optical detection unit that uses a light receiving section for receiving reflected light from a detection target in response to light emitted from a light emitting section and that is provided at a position opposite a disc having the first diameter when the disc is mounted on the recording medium mount section and at a position not opposite a disc having the second diameter when the disc is mounted on the recording medium mount section, and a control section for determining whether a disc is mounted based on a detection result of the optical detect

Abstract: An optical disk apparatus includes a disk servo unit which generates a servo signal based on a data signal read from an optical disk. The servo signal is supplied to a disk motor to control a rotation of the motor so that a linear velocity of the disk is kept constant when data is read from or written onto the disk. The disk servo unit is connected to the motor when the data is read from or written onto the disk, so that the servo signal is supplied to the motor, and the disk servo unit is disconnected from the motor when a pickup jumps from a present track of the disk to a destination track thereof so that the supply of the servo signal to the motor is inhibited. A velocity change signal which enables the motor to increase or decrease a rotating speed of the motor is generated depending on which one of two directions of the track jump is specified by a direction signal.

Abstract: A floor polisher of the present invention is provided with a main body having a motor incorporated therein, and a driving shaft coupled to the motor and protruding out below the bottom face of the main body. A front end of the driving shaft is polygonal, and a stepped portion is formed in the outer periphery thereof. Moreover, a rotary cleaner unit is detachably mounted to the driving shaft, which is provided with a polygonal axial hole to be engaged with the polygonal end part of the driving shaft. A lever is provided to engage with the stepped portion of the driving shaft to thereby prevent the rotary cleaner unit from shipping off the shaft. The lever is slidable forward and backward, is urged toward the stepped portion, and has an inclined face formed at its front end.

Abstract: An optical recording/reproducing apparatus records an information signal on a rotary optical disk by irradiating an optical beam having an optical power such that an energy sufficient to cause recording of the information signal is incident to a unit area of the optical disk in a unit time while revolting to optical disk at a first predetermined speed, and plays back the information signal from the optical disk by irradiating the optical beam while revolving the optical disk with a second predetermined speed such that the energy incident to a unit area of the optical beam in a unit time at the time of playback does not cause recording on the optical disk.

Abstract: A tracking servo apparatus for performing a control so that a light beam is irradiated onto a predetermined track of an information recording surface of a disc shaped recording medium comprising an optical system for focusing the light beam on the information recording surface of the disc shaped recording medium, a holder for holding the optical system, tracking error detection circuit for detecting a tracking error of the light beam irradiated on the information recording surface with respect to the predetermined track by receiving a reflected light of the irradiated light beam that has been reflected from the information recording surface, and outputs an error signal in accordance with the tracking error, and a piezoelectric device which is connected to the holding means, and is deformed when supplied with an amplified voltage of the error signal so as to deflect the holder and thus moves the optical system so that the light beam is irradiated on to the predetermined track of the information recording surfa

Abstract: An optical recording/reproducing module comprises a housing defined with a depression, a focusing actuator provided on one side of the housing for carrying an objective lens such that the lens is movable in a direction perpendicular to the aforementioned one side, an optical system accommodated in the depression, the optical system includes an optical source for producing a first optical beam to be directed to the objective lens, an optical detector for detecting a second optical beam received by the objective lens and incident to the optical detector, the optical detector further produces an electrical output signal responsive to the second optical beam, and an array of optical elements for guiding the first optical beam produced by the optical source to the objective lens and for guiding the second optical beam received by the objective lens to the optical detector, a cover lid adapted to be mounted on the one side of the housing, the cover lid has a shape adapted to close the depression, and an electrical

Abstract: An optical head apparatus applicable to an optical disc apparatus comprises, a case body having an open surface and a window through which an opto-electronic component can be positioned and housing optical components inside it, a lid being attachable and detachable with respect to the open surface of the case body, and a flexible printed circuit board having a base portion which is adhered to the lid and on which electronic components are mounted and a protruding portion protruding from the base portion and having an opto-electronic component fixed to the distal end portion of it, the opto-electronic component being electrically connected with an electronic circuit which is formed by the electronic components, the distal end portion of the protruding portion of the flexible printed circuit board being fixed to the case body so that the opto-electronic component is position to the window.

Abstract: An optical recording and reproducing apparatus includes a controlling circuit for controlling a light intensity of a laser beam emitted by a laser diode. The controlling circuit sets the light intensity in a verifying mode at a level lower than those in data read and write modes. The verifying mode is a mode for verifying whether or not the recording or reproducing apparatus can operate correctly. The apparatus also comprises a verifying circuit for comparing the reproduced information signal obtained in the verifying mode with a reference information signal which corresponds to the information signal written into the optical disc.

Abstract: Disclosed is a method for making a reinforcing element for use in asbestos-free friction materials. According to the method, heterogenous strands are joined together, without twisting them, and subjected to a fluid jet and to a rubber compounding material. At least one of the strands is fed to the multiplying stage at an overfeed rate.

Abstract: A data transfer apparatus for use with a replaceable disklike record medium such as a flexible magnetic disk having data storage tracks thereon, comprising a disk drive motor for imparting rotation to the record medium, and a head transport motor for transporting a transducer head or heads radially of the record medium so as to enable the transducer head or heads to access the individual data storage tracks on the record medium for data transfer therewith. Also included is a control and drive circuit for controllably energizing the head transport motor. When the record medium is not loaded in the apparatus, the control and drive circuit holds the supply voltage of the head transport motor zero, or lwoer than its normal operating voltage for head transportation, for saving power.

Abstract: A data transfer apparatus for use with a replaceable disklike record medium such as a flexible magnetic disk having data storage tracks thereon, comprising a disk drive motor for imparting rotation to the record medium, and a head transport motor for transporting a transducer head or heads radially of the record medium so as to enable the transducer head or heads to access the individual data storage tracks on the record medium for data transfer therewith. Also included is a control and drive circuit for controllably energizing the head transport motor. When the disk drive motor is out of rotation, the control and drive circuit holds the supply voltage of the head transport motor zero, or lower than its normal operating voltage for head transportation, for saving power.

Abstract: A floppy disk drive which, together with one or more like devices, is daisy chained to host equipment comprising a central processor unit and an associated controller. Each disk drive comprises a disk motor for rotating a record disk under the control of a disk motor drive circuit, a head motor for incrementally moving a transducer head radially of the record disk under the control of a head motor drive circuit, and a read/write circuit for processing data read from, or to be written on, the record disk via the transducer head. The host equipment produces, among other control signals, a MOTOR ON signal for the on/off control of the disk motor via the disk motor drive circuit.

Abstract: A flexible magnetic disk drive is disclosed which has a disk drive motor for imparting rotation to the magnetic disk under the control of a "motor on" signal, and a stepping motor capable of stepwise rotation in response to stepping pulses for transporting a transducer head or heads radially of the magnetic disk for track to track accessing. Connected to the transducer heads for processing data transferred between them and the magnetic disk, a read/write circuit is connected to a supply terminal via a switching transistor. This switching transistor has connected to its base a switch control circuit for holding the switching transistor nonconductive when the disk drive motor is out of rotation and when the stepping motor is in rotation, and for holding the transistor conductive at least during the progress of data transfer between the transducer heads and the magnetic disk.

Abstract: An apparatus for data transfer with a magnetic disk having a metal made hub attached centrally thereto, with the hub having a first opening defined centrally therein and a second opening defined eccentrically therein. The apparatus includes a turntable mounted on a drive spindle which is engageable in the first opening in the hub of the magnetic disk loaded on the turntable. A retractable drive pin is mounted eccentrically on the turntable so as to be sprung into engagement in the second opening in the disk hub upon register therewith. In order to assure engagement of the drive pin in the second opening in the disk hub immediately upon loading of the magnetic disk on the turntable, a disk drive motor for driving the turntable via the drive spindle is connected to a supply terminal via a power control switch.

Abstract: A magnetic disk drive is disclosed which has a write circuit for alternately exciting the a pair of coils of a read/write head in response to a two level write data signal when a write gate signal is in a prescribed state, thereby causing the coils to create magnetic fluxes in the opposite directions in the core. The write circuit excites a different one of the coils of the read/write head each time the write data signal changes in level from a predetermined one to the other. A final excitation circuit is provided for delaying, for example, the write gate signal for a preassigned length of time in order to cause the write circuit to excite a preselected one of the coils of the read/write head in a prescribed direction upon completion of the writing of the write data signal. Consequently, the residual magnetism of the read/write head is of one and the same orientation upon completion of writing, making possible the accurate detection of the peaks of the reproduced waveform at the time of subsequent reading.