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Graphtec Kabushiki Kaisha Patents
Assignee:
Graphtec Kabushiki Kaisha
Address:
Kanagawa-ken, JP
No. of patents:
17
Patents:




Patent Number Title Of Patent Date Issued
5895895 Input pen April 20, 1999
In an input pen for transmitting to a tablet 19 information of variation in writing pressure as well as information of designated positions, a joint 10 is mounted on the rear end of a shaft a writing tip 12. A movable magnetic core 9 is attached to the joint 10. A push rod 13 is passed i
5220354 Thermal printing head June 15, 1993
The voltage drop in the power supply common conductor of a thermal printing head deteriorates the quality of printing. In order to compensate this voltage drop, the power supply common conductor is provided with multiple feed points. Each feed point is connected through a V-shaped connec
5216444 Apparatus for controlling reference position of paper in a multiple-time recorder and control me June 1, 1993
In a multiple-time recorder in which different colored recordings are superimposed on a single sheet to draw a multi-colored drawing, the reference position of the recording paper must remain at a same point for each-time drawing of a single color. At an initialization, a physical pr
5216439 Scaling systems for data recorders June 1, 1993
Data is recorded with a plurality of clocked recording elements in a plurality of recordings in a plurality of different scales determined by different data recording parameters. Data recording parameters for any scale are electronically fixed for each recording in that scale, and are
5120907 Device for determining position coordinates of points on a surface June 9, 1992
A device for determining position coordinates of points on a surface, has a tablet containing plural number of equally spaced driver windings and plural number of equally spaced sense windings. Each driver winding has a pair of parallel conductors laid in X-direction, and each sense wind
5095180 Device for determining position coordinates March 10, 1992
In a cordless digitizer comprising a tablet, a cursor, and a signl processor, a power-supply grid structure (or structures) is provided in the tablet, and a power-supply frequency coupling coil is equipped in the cursor. The electric power to the cursor is supplied through electromag
5043910 Printed circuit board function testing system August 27, 1991
A printed circuit board function testing system compares permissible range data to a waveform signal obtained from a given measuring point of a non-defective circuit board in actual operation and a waveform signal obtained from a corresponding given measuring point of a test circuit
5030969 Ribbon charging mechanism in a multicolor thermal transfer printer July 9, 1991
Several pairs of ink sheet reels are mounted on an ink sheet stock assembly. The supporting axis of a sheet take-up reel of a pair of ink sheet reels is grasped by an axis clutch of a sheet transfer assembly, and the sheet transfer assembly is placed at the remote end from the ink sheet
4928117 Thermal printout density control May 22, 1990
Data records provided by thermal recording heads, including a plurality of clocked heating elements, are controlled in density by continually storing for each of such heating elements a present moment recording datum and further recording data including a one-clock-interval-old recording
4916462 Reference line setting system for grid pattern recorders April 10, 1990
When selecting a coordinate grid pattern within which to record data on a chart, a line of such grid pattern is selected as a reference line recordable by one of the elements of a recording head. A reference level corresponding to that reference line is provided. One heating element is
4912483 Balanced head suspension in thermal recorders March 27, 1990
Information is recorded with one or more elongate thermal recording heads on a recording medium advancing at least intermittently on a recording medium support. Such recording head or heads are being pressed against the recording medium at the recording medium support by at least two bia
4905016 Recorder with a pencil pen and method therefor February 27, 1990
A recorder with a pencil pen which contains a plurality of pencil leads therein comprises means for causing a lead chuck mechanism of the pencil lead to hold and release the pencil lead and means for vertically moving a pencil lead displacement mechanism of the pencil pen. Those means ar
4855755 Thermal head supporting means in thermal recording apparatus August 8, 1989
In a thermal recording apparatus using a plurality of thermal heads supported by a head supporting means including a head supporting mechanism and a head pressing mechanism. The head supporting means includes single supporting units provided for correspondingly respectively supporting th
4806708 Coordinate determining device and method of determining X-Y coordinate position February 21, 1989
A coordinate determining tablet and method for determining an X-Y coordinate position using electromagnetic induction, including a plurality of conductive wires mounted on an insulating plate such that the wires are formed in a parallel return winding pattern displaced from each other by
4795858 Device for determining position coordinates of points on a surface January 3, 1989
A device for determining position coordinates of points on a surface, have a cursor structure, a grid structure, and a signal processor. The cursor structure has a cursor coil and a signal generator to impress a reference phase voltage to the coil. Voltages induced from the cursor coil i
4630071 XY recorder December 16, 1986
An XY recorder in which a recording paper is moved on a platen along the X axis in accordance with one variable and a stylus is moved along the Y axis in accordance with another variable, employs a controller to control the paper movement in several different modes. In a paper draw out m
4565918 Heating circuit for a thermal recording-pen January 21, 1986
In an automatic recording instrument having a thermal recording-pen to record on a heat sensitive recording-paper, an operational amplifier output supplies the heating current to the thermal pen through a resistor. A non-linear transfer element receives the output voltage of the amplifie

 
 
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