Abstract: A novel information processing device that is highly convenient or reliable is provided. The information processing device includes a sensor portion, a communication portion, a display portion, and an arithmetic device; the sensor portion has a function of obtaining position information, and the communication portion has a function of obtaining map information and legal speed limit information. The arithmetic device identifies first legal speed limit information from the map information on the basis of the position information, the arithmetic device generates first image information including the first legal speed limit information, and the display portion has a function of displaying the first image information.

Abstract: An image forming apparatus includes a driving roller for transporting a medium; a follower roller disposed to face the driving roller for transporting the medium; a guide member for guiding the medium to change a transport direction thereof by an angle greater than 30°; and a rotational member disposed to be freely rotatable at a position corresponding to a side edge of the medium. Accordingly, after the driving roller and the follower roller transport the medium, when the medium contacts with the guide member, side edges of the medium contact with the guide member at an angle smaller than that of a center portion of the medium contacting with the guide member.

Abstract: There are provided a nozzle capable of enhancing the straight-advancing capability of jetted fluid to increase the back wash effect of a filter member, and a filter-type dust collector capable of effectively carrying out dust removal from a filter member with such a nozzle. To this end, the nozzle has a Laval nozzle section secured to the inside of an outer tube at its proximal end and a fluid guide section disposed at the leading end of the outer tube. The fluid guide section has a plurality of suction holes elongated in the flowing direction of the pressurized fluid. This nozzle is mounted on a pulse header tube of a dust removal device.

Abstract: An image forming apparatus includes a driving roller for transporting a medium; a follower roller disposed to face the driving roller for transporting the medium; a guide member for guiding the medium to change a transport direction thereof by an angle greater than 30°; and a rotational member disposed to be freely rotatable at a position corresponding to a side edge of the medium. Accordingly, after the driving roller and the follower roller transport the medium, when the medium contacts with the guide member, side edges of the medium contact with the guide member at an angle smaller than that of a center portion of the medium contacting with the guide member.

Abstract: A crystalline semiconductor film in which the position and the size of crystal grains are controlled is provided, and a TFT that can operate at high speed is obtained by forming a channel formation region of the TFT from the crystalline semiconductor film. A heat retaining film is formed on an insulating surface, a semiconductor film is formed to cover the heat retaining film, and a reflective film is formed to partially cover the semiconductor film. The reflective films and the semiconductor film are irradiated with a laser beam. The reflective film creates a distribution in effective irradiation intensity of laser beam on the semiconductor film. The distribution, with the heat retaining effect provided by the heat retaining film, generates a temperature gradient in the semiconductor film. Utilizing these, the position where crystal nuclei are to be generated and the direction in which crystal growth should advance can be controlled and crystal grains having a large grain size can be obtained.

Abstract: An object of the present invention is to provide a light emitting device including an organic light emitting layer and an organic compound and having high light emitting efficient along with less deterioration in characteristics. In the light emitting device, an anode, a cathode facing the anode, light emitting layers each comprising an organic compound and being provided between the anode and the cathode, and carrier transporting layers each comprising an organic compound, are provided over a substrate. Each of the light emitting layers and each of the carrier transporting layers are alternately stacked. A thickness of each of the carrier transporting layers is thinner than that of each of the light emitting layers. When each of the carrier transporting layers is a hole transporting layer, each of the light emitting layers has an electron transporting property. When each of the carrier transporting layers is an electron transporting layer, each of the light emitting layers has a hole transporting property.

Abstract: A crystalline semiconductor film in which the position and the size of crystal grains are controlled is provided, and a TFT that can operate at high speed is obtained by forming a channel formation region of the TFT from the crystalline semiconductor film. A heat retaining film is formed on an insulating surface, a semiconductor film is formed to cover the heat retaining film, and a reflective film is formed to partially cover the semiconductor film. The reflective films and the semiconductor film are irradiated with a laser beam. The reflective film creates a distribution in effective irradiation intensity of laser beam on the semiconductor film. The distribution, with the heat retaining effect provided by the heat retaining film, generates a temperature gradient in the semiconductor film. Utilizing these, the position where crystal nuclei are to be generated and the direction in which crystal growth should advance can be controlled and crystal grains having a large grain size can be obtained.

Abstract: There are provided a nozzle capable of enhancing the straight-advancing capability of jetted fluid to increase the back wash effect of a filter member, and a filter-type dust collector capable of effectively carrying out dust removal from a filter member with such a nozzle. To this end, the nozzle has a Laval nozzle section secured to the inside of an outer tube at its proximal end and a fluid guide section disposed at the leading end of the outer tube. The fluid guide section has a plurality of suction holes elongated in the flowing direction of the pressurized fluid. This nozzle is mounted on a pulse header tube of a dust removal device.

Abstract: A crystalline semiconductor film in which the position and the size of crystal grains are controlled is provided, and a TFT that can operate at high speed is obtained by forming a channel formation region of the TFT from the crystalline semiconductor film. A heat retaining film is formed on an insulating surface, a semiconductor film is formed to cover the heat retaining film, and a reflective film is formed to partially cover the semiconductor film. The reflective films and the semiconductor film are irradiated with a laser beam. The reflective film creates a distribution in effective irradiation intensity of laser beam on the semiconductor film. The distribution, with the heat retaining effect provided by the heat retaining film, generates a temperature gradient in the semiconductor film. Utilizing these, the position where crystal nuclei are to be generated and the direction in which crystal growth should advance can be controlled and crystal grains having a large grain size can be obtained.

Abstract: A first insulating layer is embedded within a semiconductor film formed on a base insulating film, a second insulating layer is formed on a portion of the semiconductor film, and a laser beam is irradiated from the top side (or from both the top side and the bottom side) of the substrate. A thermal gradient develops in the semiconductor film due to the thermal insulating effect of the base insulating film, due to the thermal insulating effect of the first insulating layer, and due to the antireflection effect and thermal insulating effect of the second insulating layer. The location and direction of lateral growth of crystal nuclei are controlled by utilizing these effects, and large size crystal grains can be obtained.

Abstract: A first insulating layer is embedded within a semiconductor film formed on a base insulating film, a second insulating layer is formed on a portion of the semiconductor film, and a laser beam is irradiated from the top side (or from both the top side and the bottom side) of the substrate. A thermal gradient develops in the semiconductor film due to the thermal insulating effect of the base insulating film, due to the thermal insulating effect of the first insulating layer, and due to the antireflection effect and thermal insulating effect of the second insulating layer. The location and direction of lateral growth of crystal nuclei are controlled by utilizing these effects, and large size crystal grains can be obtained.

Abstract: A crystalline semiconductor film in which the position and the size of crystal grains are controlled is provided, and a TFT that can operate at high speed is obtained by forming a channel formation region of the TFT from the crystalline semiconductor film. A heat retaining film is formed on an insulating surface, a semiconductor film is formed to cover the heat retaining film, and a reflective film is formed to partially cover the semiconductor film. The reflective films and the semiconductor film are irradiated with a laser beam. The reflective film creates a distribution in effective irradiation intensity of laser beam on the semiconductor film. The distribution, with the heat retaining effect provided by the heat retaining film, generates a temperature gradient in the semiconductor film. Utilizing these, the position where crystal nuclei are to be generated and the direction in which crystal growth should advance can be controlled and crystal grains having a large grain size can be obtained.

Abstract: A stepping motor comprises a rotor, a stator, coils for magnetizing the stator, and a controller for controlling the excitation of the coils to control the rotation of the rotor. The rotor is cylindrical and has a multiplicity of alternately arranged north and south poles. The stator has a plurality of stator teeth arranged about the rotor. The controller is arranged to rotate the rotor a predetermined amount to a selected stop position and then determine whether to maintain the excitation of the coils or to inhibit the excitation of the coils based upon the relative position between the stator teeth and the rotor poles in the stop position.

Abstract: In a dot matrix type printer, a method of printing wherein successive lines are printed using a first and second plurality of print wires to print a first line in left to right and a second in right to left printing that is done in two passes over each line. When high-quality printing is required, all print wires are used in both passes with the print head being repositioned, at the start point of the first line by a feed direction adjustment to center the print wires between the previously printed dots, prior to the second pass over the two lines. The result is high-quality printed characters. In normal print, the odd print wires comprise the first plurality of print wires used in the first pass and the even print wire comprise the second plurality used in the second pass over the two lines.

Abstract: A resist film for protecting a circuit pattern is coated onto a circuit pattern formed on a circuit board, and further, a part of the resist film with which another unit comes into contact is coated with a thermosetting film. Namely, the other unit is brought into contact with a part of the circuit pattern coated with the thermosetting film, and thus, the other unit and the resist film do not come into contact with each other directly, regardless of whether or not the other unit has a high temperature.

Abstract: Disclosed is a printing device such as an electronic typewriter and a wire-dot type printer. With the disclosed printing device, control means is operated in response to depression of a character key, on condition that a bold-face print mode is being set on, to print a character designated by the character key at different three or more print positions, including a first print position, a second print position spaced apart from the first print position along the print line so that a second dint formed in the second print position is not overlapped with a first dint formed in the first print position, and a third print position located between the first and second print positions to form a third dint to fulfil a un-printed area of the print sheet remaining between the first and second dints.

Abstract: In a printed character printed with a printing apparatus provided with a plurality of type elements and a print hammer, the specified left or right edge portion thereof has ink adhered heavily on the paper, and this specified edge portion is difficult to be erased when erasing a wrongly printed character with a correction ribbon.In the disclosed character erasable printing apparatus, after moving the carriage from the print position by a predetermined minute distance in the printing direction or in its opposite direction toward the specified edge portion, a first hammering for erasure is carried out, and subsequently after moving the carriage in the direction opposite to above-described movement, at least, and without feeding the correction ribbon relative to the carriage, a second hammering for erasure is carried out with an unused fresh portion of the correction ribbon made to face the specified edge portion having residual ink.

Abstract: A step motor driving device comprises a single control circuit and a single voltage generating circuit for controlling plural step motors, each step motor being connected to a drive circuit. The control circuit outputs a control signal to the voltage generating circuit so that it selectively supplies high voltage and/or low voltage to the step motors. Therefore, the driving device of the present invention can control more than two step motors either jointly or individually by means of a simple circuit structure.

Abstract: In the conventional printing apparatuses wherein a type-wheel and a carriage are driven respectively by stepping motors, after turning on power supply, a original position of the carriage is initialized by a sensor method, and a original position of the type-wheel is initialized by a step-out method. In this case, a sensor is required to be mounted within a very narrow range equivalent to several steps, and a stopper for restraining rotation of the type-wheel is required to be mounted within a very narrow range in the vicinity of a frame side wall.

Abstract: A method or system for bringing a movable element of a stepper motor to its home position by mechanically blocking the movable element from further moving from the home position, wherein the movable element is moved in one direction by repeating an energization cycle in which windings for sequentially establishing different energization phases are energized in a predetermined sequence at a predetermined interval from one phase to another. After the movable element is mechanically blocked, a motor driver circuit energizes at least one of the windings which corresponds to at least one of the energization phases that precedes another of the energization phases which corresponds to the home position of the movable element. This energization of the winding or windings for each preceding phase continues for a time longer than the predetermined energization interval of the normal energization cycle.