Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 6988791 | Ejection head for aggressive liquids manufactured by anodic bonding A method for manufacturing an ejection head (10) or ejector suitable for ejecting in the form of droplets (16) a liquid (14) conveyed inside the ejection head (10), comprising a step of producing, from a silicon wafer, a nozzle plate (... | 01/24/2006 |
| 6851791 | Polychromatic printhead This invention relates to a printhead in which a plurality of resistors are selectively activated by an external control circuit to produce the ejection of droplets of ink through nozzles located in correspondence with the resistors. Selection and activation are per... | 02/08/2005 |
| 6780340 | Ejection head for aggressive liquids manufactured by anodic bonding A method for manufacturing an ejection head (10) or ejector suitable for ejecting in the form of droplets (16) a liquid (14) conveyed inside the ejection head (10), comprising a step of producing, from a silicon wafer, a nozzle plate (... | 08/24/2004 |
| 6728012 | Multifunction terminal A multifunction terminal is suitable for performing the functions of printing, scanning, copying, fax transmission and reception and/or sorting of documents. It comprises feeding stations (12, 14) for the sheets and the originals, a feeding path (18) w... | 04/27/2004 |
| 6700577 | Bit string conversion device This invention relates to a device for converting bit strings from a first resolution to a second resolution suitable for application, in particular, on peripherals such as printers, scanners or facsimile machines. The device comprises a source register 3... | 03/02/2004 |
| 6628421 | Electronic device for the control of moving elements in text and/or image processing equipment This invention relates to a device for controlling the activation of moving elements, such as for example an ink jet type print-head or a sensor of equipment for scanning text and/or images. The device, upon the measurement by means of, for example, the m... | 09/30/2003 |
| 6565078 | Device for feeding sheets from a ream of the type comprising a main feeding roller and an auxiliary separating roller A device (10) for feeding sheets from a ream (22) comprising a main feeding roller (24) subdivided into a plurality of sleeves (32) which rotate in contact with an uppermost sheet (23a), coming from the ream, to feed it along a path (30), and an auxiliary... | 05/20/2003 |
| 6565175 | Integrated printhead This invention relates to an integrated printhead (20) for ink jet printers, wherein the addressing of the various nozzles is effected in at least 3-D mode. The head (20) comprises a plurality of groups (24) of ink jet elements (21, 22) arranged in M rows... | 05/20/2003 |
| 6535149 | Device for compressing/decompressing bit strings This invention relates to an electronic device, for a fax machine in particular, comprising controlling means (11) capable of associating compression codes or code words with strings of source information in accordance with a first processing speed, and s... | 03/18/2003 |
| 6517182 | Droplet volume calculation method for a thermal ink jet printer A method for detecting the volume (Vol) of the droplets of ink (22) ejected by a thermal ink jet printhead (11), comprising a continuous driving cycle during which one or more thermal ejection actuators (17) of the printhead (11) are driven in pulsing fas... | 02/11/2003 |
| 6511148 | Ink jet color printer and relative method of operation An ink jet color printer (10) comprises a printer body (15) having a casing with a rear wall (17) provided with a slot (13) in which an interchangeable, disposable type paper cassette (18) containing printing media with given common characteristics is rem... | 01/28/2003 |
| 6508530 | Aligning method for multiple ink jet color printheads with built-in optoelectronic position detector The single heads (40) mounted on a single print carriage of an ink jet printer comprise a column (50) of phototransistors (51-i), built directly into the chip of each head in the same process steps as used for the circuits for selecting and driving the ac... | 01/21/2003 |
| 6497470 | Ink jet printhead with large size silicon wafer and relative manufacturing process An actuator assembly (81) for ink jet printheads, both monochromatic and colour, with a large number of nozzles (62), consists of a die (58) stuck on a rigid substrate (166) and divided into two parts lengthwise to permit the flow of ink from the tank to ... | 12/24/2002 |
| 6443445 | Device for the feeding of flat materials A sheet feeding device for printers and other machines comprises a movable support (17) whereon a stack of sheets may be arranged and resiliently urged against selection wheels (19). A retracting mechanism (50) is arranged so as to push back during one ph... | 09/03/2002 |
| 6412921 | Ink jet printhead An ink jet printhead optimally utilizes the surface area of the upper face of a silicon die, even in the case of a non-monochromatic head having plural ink tanks. For each tank of ink, the ink includes one pass-through slot that departs from the lower fac... | 07/02/2002 |
| 6371589 | Device for controlling energy supplied to an emission resistor of a thermal ink jet printhead In a thermal ink jet printhead, an emission resistor includes a layer of electrically conductive material for making connections to the resistor. A temperature sensor and a reference temperature sensor, provided for detecting the temperature of enucleatio... | 04/16/2002 |
| 6371591 | Alignment system for multiple color ink jet printheads and associated printhead with built-in optical position detector The individual monochromatic printheads mounted simultaneously on the scanning carriage of an ink jet printer are provided with an opto-electronic position detector of the four-quadrant type, which is integrated directly in the chip of each head by means ... | 04/16/2002 |
| 6296245 | Device for the picking and feeding of sheets from a ream A device 100 for the feeding of sheets 14 from a ream 18, with a main rotating, feeding roller 27; a tray 13 containing the ream 18; and an auxiliary roller 130 arranged adjacent to the feeding roller 27, wherein the tray 13 is suitable for moving cyclica... | 10/02/2001 |
| 4458275 | Method and device for testing units for processing magnetic disks The method of testing units for the processing of magnetic disks comprises the insertion of a suitably modified disk into the testing unit and the reading of this disk when operations controlled by a testing programme are carried out. The disk for testing... | 07/03/1984 |
