"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7413358 | Armature damper, method of manufacturing armature damper, and dot head An armature damper according to the present invention acts to abut against the arm of an armature to stop the arm at a predetermined backward position. The armature damper is formed in a manner that the surface thereof abutting against the arm is formed by a rigid b... | 08/19/2008 |
| 7374354 | Armature, wire dot printer head and wire dot printer In order to realize a weight saving and prevent a concentration of stress to thereby obtain durability endurable for high-speed printing, an armature of the present invention has an arm that is formed into a long-sized plate-like shape and holds a printing wire at i... | 05/20/2008 |
| 7357013 | Marking device for encoding metallic workpieces with two-dimensional matrix codes A marking device for encoding metallic workpieces with two-dimensional matrix codes includes a striking tool for forming the code recesses, driven by an electromagnetic device. The driving movement is performed against the force of a return device. A positioning dev... | 04/15/2008 |
| 7258429 | Adjustment method of dot printing position and printing system A print position adjusting method capable of executing dot adjust value calculation processing in ways that can meet diversified user needs of recent years, and a printing system that can realize the print position adjusting method are provided. Multiple kinds of do... | 08/21/2007 |
| 7246960 | Print head A needle guide (5) is composed of a first guide wall (5a) and a second guide wall (5b) arranged at a distance x from each other. Each of these guide walls is formed with through holes through which needles penetrate and which exten... | 07/24/2007 |
| 7185967 | Printing apparatus, pattern, and computer system A printing apparatus comprises an ejection head for selectively ejecting ink droplets of a plurality of sizes to form dots on a printing medium. The printing apparatus is capable of printing a correction pattern on the printing medium, the correction pattern enablin... | 03/06/2007 |
| 7159960 | Liquid ejecting method, liquid ejecting apparatus, and liquid ejecting system for forming dots up to edge of a medium Liquid droplets, which are ejected toward a region that is outside of a medium, are to be prevented from floating and liquid droplets are to be inhibited from adhering to unanticipated sites when ejecting droplets of liquid to form dots up to the edges of a medium. ... | 01/09/2007 |
| 7137748 | Nitride layer forming method, magnetic circuit forming member, armature, wire dot printer head and wire dot printer In order to realize stable rocking operation of the armature and further obtain magnetic characteristics required for high-speed printing, the magnetic circuit forming member formed of magnetic material like a plate and having the through hole in the direction of th... | 11/21/2006 |
| 7118297 | Print option setting method and system for image forming devices A method and system for setting print options for media to be printed in image-forming devices according to a specific form format is provided. The print option setting method and system includes the steps of detecting line feed information from a print file in the ... | 10/10/2006 |
| 7097281 | Ink supply apparatus for printers An ink supply apparatus for printers is installed on an ink cartridge housing compartment of a printer and includes a liquid storing cartridge which has an ink channeling chamber and a buffer chamber that communicate with each other. The ink channeling chamber has a... | 08/29/2006 |
| 7093919 | Image formation device, process cartridge initializing method, and process cartridge initializing program When a new process cartridge is detected, that new process cartridge is initialized. A flag that indicates initialization status of the new process cartridge is set and stored. When a new process cartridge is detected, the flag is set to indicate non-initialization,... | 08/22/2006 |
| 7083249 | Method for establishing standard values to obscure banding in printed result of ink jet printer and ink jet printer set up by the same The invention relates to a method for setting a tolerance of each standard value, which is a factor in determination of ink droplets landing accuracy, to an ink jet printer that is set up using the method, by implementing a sensory test using printed results of an i... | 08/01/2006 |
| 7064859 | Method, system, program, and data structure for producing a look-up table to enhance print quality Disclosed is a method, system, and program for generating a table for enhancing the print quality of input raster pel data. An output value is generated for different patterns of pel data. Each output value indicates a sub-pulse width power to charge a sub-pel regio... | 06/20/2006 |
| 7059243 | Positive piece engagement indicator for marking tool A positive piece engagement indicator for marking tool is provided in which a metal workpiece is contacted with a workpiece contact probe for providing physical contact with, as well as electrical communication with the metal surface of a workpiece. A test voltage a... | 06/13/2006 |
| 7059787 | Motor control method and apparatus, time recorder having same and impact type printing apparatus An impact printing apparatus is also disclosed with printing pin actuation timing correction dependent upon scanning speed or platen shape, striking duration timing dependent upon scanning rate, or printing pin actuation timing dependent upon stored shift amounts. | 06/13/2006 |
| 7055426 | Positive piece engagement indicator for marking tool A positive piece engagement indicator for marking tool is provided in which a metal workpiece is contacted with a workpiece contact probe for providing physical contact with, as well as electrical communication with the metal surface of a workpiece. A test voltage a... | 06/06/2006 |
| 7048455 | Wire dot printer head with abrasion having magnetic permeability and hardness surface In order to realize a stable rocking operation of the armature for performing high-speed printing, between the armature spacer for accommodating and holding the support shaft of the armature which supports the printing wires, and the yoke for holding the support sha... | 05/23/2006 |
| 7044664 | Prescription drug printer with drug verification indicia and method for use thereof A prescription drug printing machine is used by a physician in connection with prescribing one or more prescription drugs to a patient. The printing machine has a memory unit that contains a database of information on all known available prescription drugs, includin... | 05/16/2006 |
| 7021847 | Marking device A marking device (10) comprises a housing (12) having a handle (16). A frame (20) is pivotally mounted in the housing aout a first axis (22). A marking head (40) mounted on the frame for translational movement in the frame b... | 04/04/2006 |
| 7018116 | Armature, wire dot printer head and wire dot printer In order to enhance magnetic characteristic to realize a stabilized pivotal movement of an armature and to obtain magnetic characteristic required for high-speed printing, an armature according to the present invention has a magnetic circuit forming member formed by... | 03/28/2006 |
| 7014288 | Recording apparatus and control method therefor A recording apparatus comprising a shift register which shifts recording data stored in a buffer memory, by a designated magnitude corresponding to a designated number of the recording elements, and which then transfers the recording data to a recording head. In a c... | 03/21/2006 |
| 6975427 | Method, system, and program for using look-up tables to filter raster data Disclosed is a method, system, and program for modifying raster pel data according to different types of filtering operations. At least two tables are maintained in memory. At least two of the tables provide output pel values for at least two different types of filt... | 12/13/2005 |
| 6975428 | Method, system, and program for reducing toner usage in print output Disclosed is a method, system, and program for reducing toner in an image comprised of raster pel data. A determination is made of pels surrounding subject pels. For each subject pel, a sub-pulse width power is generated to charge a sub-pel region within the subject... | 12/13/2005 |
| 6923520 | Head driving unit and an image forming apparatus using the same A head driving unit the generates a driving waveform, each driving waveform including a plurality of driving pulses, and selects one or more driving pulses to be applied to a liquid drop discharging head in response to data corresponding to an image. By selecting a ... | 08/02/2005 |
| 6908173 | Positional deviation correction using reference and relative correction values in bi-directional printing In the bi-directional printing, a reference correction value is set for correcting printing positional deviation arising between forward and reverse main scanning passes with respect to specific reference dots. An adjustment value is determined, using at least the r... | 06/21/2005 |
| 6896429 | Constant density printer system An ink density closed loop control system for an ink ribbon of an impact printer having a reservoir roller formed of an ink absorbent material with at least one or more channels within the reservoir roller fluidly connected to a pump and ink supply. A transfer rolle... | 05/24/2005 |
| 6857799 | Motor control method and apparatus, time recorder having same and impact type printing apparatus An impact printing apparatus is also disclosed with printing pin actuation timing correction dependent upon scanning speed or platen shape, striking duration timing dependent upon scanning rate, or printing pin actuation timing dependent upon stored shift amounts. | 02/22/2005 |
| 6835011 | Impact dot printing head control apparatus With an impact dot printing head control apparatus according to the invention, the drive control of respective wires is implemented on the basis of a normal fire and a pre-fire by generating the normal fire for driving the respective wires of the impact dot printing... | 12/28/2004 |
| 6759012 | Pin holder for a microarraying apparatus A pin holder for a microarraying apparatus comprising at least one group of bodies of circular cross-section packed together to form a network of pathways in gaps between the bodies; and an array of pins slidably arranged in the pathways. The pins are held in parall... | 07/06/2004 |
| 6755580 | Ink-jet printing head A printing head which outputs an output from a sensor device provided for monitoring various condition of a printing head as-digital data, and a printing apparatus using the printing head. The output from the device for detecting condition of the printing head, e.g.... | 06/29/2004 |
| 6733195 | Head drive circuit for impact dot printer In a head drive circuit for an impact dot printer which performs printing by driving a print wire, a DC power source supplies a power source voltage. A switching element is on/off controlled to apply the power source voltage to a head coil for a predetermined time p... | 05/11/2004 |
| 6719468 | Positive piece engagement indicator for marking tool A positive piece engagement indicator for marking tool is provided in which a metal workpiece is contacted with a workpiece contact probe for providing physical contact with, as well as electrical communication with the metal surface of a workpiece. A test voltage a... | 04/13/2004 |
| 6698954 | Printing process using a plurality of drive signal types A maskable drive signal generator selectively generates one of n types of maskable drive signals for each main scan pass, and a drive signal masking section generates a drive signal to be supplied to ink-expulsion drive elements of a print head by masking... | 03/02/2004 |
| 6698955 | Method and apparatus for adjusting print positions of dot line printer A control circuit generates two sorts of printing timing signals on the basis of the position of the printing mechanism module detected by a detector, and sends the generated signals to respective drive circuits. Herein, the printing mechanism module is c... | 03/02/2004 |
| 6695495 | Constant density printer system An ink density closed loop control system for an ink ribbon of an impact printer having a reservoir roller formed of an ink absorbent material with at least one or more channels within the reservoir roller fluidly connected to a pump and ink supply. A tra... | 02/24/2004 |
| 6695496 | Dot printer A dot printer not using any type, nor requiring any ink ribbon has an ink roller 1, a platen 2 having an outer surface coated with ink by contacting the ink roller 1, and a printing head 3 facing the platen 2 in an appropriately spaced apart relation ther... | 02/24/2004 |
| 6688788 | Dot-matrix printer and printing method A dot-matrix printer for printing on a printing medium comprises a dot-forming section for forming dots on the printing medium; and a referenced data section to be referred to during movement of the dot-forming section, a character string to be printed be... | 02/10/2004 |
| 6659663 | Head drive circuit for impact dot printer For a print head in an impact dot printer, a drive transistor 33 is connected in series to a head coil 59 that drives a print wire, and a pulse 32 is used to turn the drive transistor 33 on and off. Thus, the drive current i is supplied to the head coil 5... | 12/09/2003 |
| 6543944 | Wire dot printer head and wire dot printer using the same A wire dot printer head including a yoke, cores arranged in an annular form on the yoke, coils combined with the cores so as to fit the cores, armatures supported so as to be raised or lowered in respect to the cores, wires supported at the free ends of t... | 04/08/2003 |
| 6517267 | Printing process using a plurality of drive signal types A maskable drive signal generator selectively generates one of n types of maskable drive signals for each main scan pass, and a drive signal masking section generates a drive signal to be supplied to ink-expulsion drive elements of a print head by masking... | 02/11/2003 |