Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7283146 | Thermal printer temperature management Systems and methods for providing thermal printhead thermal history temperature management by preprocessing target images are described. In one example, a thermal compensation process is applied to a target image to provide offset values in order to create a compens... | 10/16/2007 |
| 7131779 | Actuating control device An actuating control device for use between a printer head and an actuating and transmitting device includes a path planning unit, a feedback unit, a proportional-integral controller and a feed forward controller. The path planning unit issues a position command val... | 11/07/2006 |
| 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 |
| 6533477 | Thermal line printer and printing method therefor There is disclosed a thermosensitive line printer, wherein a heating element array of a thermal head is pressed on a thermosensitive recording paper at a distance L2 from a nipping position by a pair of conveyer rollers, and is driven to record an image f... | 03/18/2003 |
| 6375371 | Non-label printing process for direct thermal imaging materials including an organic silver salt A printing process for a substantially light-insensitive thermographic monosheet material having two edges parallel to one another and >12 cm apart (non-label) for obtaining a desired optical density and a desired colour tone comprising: selecting a therm... | 04/23/2002 |
| 6264382 | Method of printing A method of printing using a thermal print head comprises a plurality of printing elements arranged generally in an array each of which may selectively be energised and de-energised under the control of a control means to transfer pixels of marking medium... | 07/24/2001 |
| 6028674 | Consumer-document inking monitor and control In a printer, periodic testing of printer ink density occurs once the number of print operations exceeds a particular threshold. The threshold is either determined from use or from statistics which summarize the performance of a particular manufacturer an... | 02/22/2000 |
| 5897255 | Speed fonts for matrix printers A method of printing font character bars comprised of a plurality of rows in a direction of printing movement perpendicular to the font character bars which are in turn comprised of a plurality of close adjacent dots to improve print quality at printing s... | 04/27/1999 |
| 5896159 | Temperature controlling method and apparatus for a thermal printhead A temperature controlling method and apparatus for a thermal printhead, in which a temperature of a thermosensitive recording material is detected by measuring a temperature change of the thermal printhead when a surface of the thermosensitive recording m... | 04/20/1999 |
| 5890819 | Thermal printer system and method for improved compensation of variations in operating parameters There is disclosed a thermal printer system in which variations in voltage (and the energy corresponding thereto) supplied to resistance elements of a print head are electronically compensated for. The voltage at the print head is monitored as a line of p... | 04/06/1999 |
| 5868505 | Printer apparatus A printer apparatus in which a multi-nozzle print head can be produced at low cost and which can deal with changes caused with lapse of time. With the printer apparatus, effective resolution can be improved and a more accurate gradation level in picture p... | 02/09/1999 |
| 5651620 | Nonimpact printer having selectable ribbons and print heads A nonimpact printer accommodates at least one ribbon of selected transfer panel types such as yellow, magenta, cyan and black thermal transfer or dye diffusion, precoat, overcoat, and the like, or combinations thereof, and may also include a direct energy... | 07/29/1997 |
| 5153605 | System of controlling energization to thermal head in thermal printer An energization control system for controlling energization of a thermal head of a thermal printer, the thermal head being equipped with a plurality of heating elements successively arranged in line, which are energized to generate heat in response to sup... | 10/06/1992 |
| 4741634 | Printer with variable head displacement This invention provides a printer capable of regulating the displacement of printing head according to the kind of characters to be printed. The printer has a printing head, an identifying device for identifying the print size of the printing head, and a ... | 05/03/1988 |
| 4712930 | Gradation thermal printhead and gradation heat transfer printing apparatus A gradation thermal printhead having a plurality of heat generating elements each having a heat generating body connected between a pair of electrodes, the electric resistance value of the heat generating body being locally increased in one or more portio... | 12/15/1987 |
| 4462704 | Thermal heat driving system A thermal head driving system having a plurality of thermal heads, an electric power source commonly used to drive the heads at the same voltage. A pulse generator provided between the power source and each of the heads for producing a driving pulse havin... | 07/31/1984 |
| 4391535 | Method and apparatus for controlling the area of a thermal print medium that is exposed by a thermal printer After discussion of a typical prior art thermal printer that is capable of providing precise printing of machine-readable characters on a thermal print medium through the use of an electrically-resistive thermal print element, a thermal model of the therm... | 07/05/1983 |
