In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7365762 | Thermal printing head comprising a printable tape guiding member, in the form of a protection cover for a flexible control printed circuit A thermal printing head comprises a guide member made in a single-piece and designed as a jumper comprising two superimposed walls, covering, at least partly, respectively and jointly both surfaces of a flexible printed circuit board and providing between them a spa... | 04/29/2008 |
| 7284832 | Ink cartridge unit and inkjet printer having the same An ink cartridge unit for reducing material costs and enhancing reliability. The ink cartridge unit including an ink cartridge having at least one head chip to eject ink stored in the ink cartridge according to printing data. A drive substrate having a circuit patte... | 10/23/2007 |
| 7040549 | Systems and methods for controlling fluid feed to an aerosol generator A method for controlling the supply of liquid to an aerosol generator comprises operating a liquid supply system to supply a liquid to a vibratable aperture plate of an aerosol generator which senses an amount of liquid adhering to the vibratable aperture plate, and... | 05/09/2006 |
| 6931941 | Method and apparatus for fatigue testing A fatigue test system includes a frame having top, intermediate and bottom supports each operatively interconnected by at least one extension, and the intermediate support being disposed between the top and bottom supports. The fatigue test system further includes a... | 08/23/2005 |
| 5933178 | Multi-stylus head and process for producing the same Odd- and even-numbered conductors of recording electrodes, for example, first or second recording electrodes, are divided in the direction in which the conductor at the time of winding are stacked up to form different layers so as to increase the distance... | 08/03/1999 |
| 5530690 | Multi-needle recording head and method of manufacturing the same A multi-needle recording head has retaining members within an electrode support block, each retaining member serving to retain a recording electrode wire. The retaining members can not only lessen a stress generated by the hardening and contracting of a r... | 06/25/1996 |
| 5351072 | Automatic lead supply apparatus for plotter When a pen holder of a drawing head of an automatic lead supply apparatus is raised and lowered, and a knocking pipe of a pencil holder held by the pen holder strikes or is pressed against a knocking plate in order to repeatedly raise and lower the knocki... | 09/27/1994 |
| 5343232 | Multiple-needle electrode head There are disclosed a multiple-needle electrode head and its manufacturing method. The head comprises: a first head half body including at least two electrode substrates, each having needle-shaped electrodes formed in a row on its one surface and insulate... | 08/30/1994 |
| 5317342 | High-density print head The invention is a print head for a thermal or electrostatic printer, the print head being made from a high-density circuit. The high-density circuit includes conductors having a spacing less than about 0.005 inches, the conductors being disposed over a r... | 05/31/1994 |
| 5260717 | Recording head having electrically insulating layer having optimum surface waviness and roughness A recording head including an electrically insulating layer, a plurality of recording electrodes and at least one return circuit electrode provided on the opposite sides of the insulating layer, the insulating layer and electrodes being adapted to be held... | 11/09/1993 |
| 5241325 | Print cartridge cam actuator linkage Apparatus and techniques are disclosed for aligning the operation of the ink jet printhead cartridges of a multiple printhead ink jet swath printer that includes a print carriage that is movable along a horizontal carriage scan axis, (b) first and second ... | 08/31/1993 |
| 5231422 | Recording head having two substrates superposed such that electrode supporting surface of one of the substrates faces non-electrode-supporting surface of the other substrate A recording head operable to apply an electric current to an electrically resistive layer, the head including two substrates each of which supports at least one electrode on one of opposite major surfaces thereof. At least one of the two substrates has an... | 07/27/1993 |
| 5225855 | Electrographic flare reduction by spacing and gas control An apparatus for selectively setting the distance between the write head of an electrographic printing apparatus and a recording medium in combination with the use of a gas, present in the gap between the medium and the write head whereby the gas has a Pa... | 07/06/1993 |
| 5212502 | Ink jet print head mounting mechanism An exact constraint mounting is provided between the print head and the carriage of an ink jet printer. The mounting scheme includes three generally spherical alignment features on the carriage, a conical depression on the print head for cooperating with ... | 05/18/1993 |
| 5208987 | Marking device with vibrating yieldable writing tip A marking device which includes a hand-held housing and electrically powered means for vibrating the housing. An ink cylinder having a writing tip at its end is slidably supported within a cartridge casing, and a spring biases the cylinder outwardly on th... | 05/11/1993 |
| 5173718 | Scanning head A scanning head comprises a support member for supporting the head in pressing contact with a platen. The support member has lower strength portions spaced longitudinally of the head, and higher strength portions alternate with the lower strength portions... | 12/22/1992 |
| 5164740 | High frequency printing mechanism The present invention provides an ink-jet ejection device which is capable of ejection or ink (including hot melt ink) jet frequencies greater than 50,000 Hz. A cantilevered beam of selected shape is mounted at its base to a piezoelectric element which os... | 11/17/1992 |
| 5150525 | Drawing device for use in drafting machine A drawing device for use in a drafting machine includes one length of long casing; a lead guide fixedly secured to the leading end of the casing; one length of pipe member inserted from the other end side of the casing into the same in such a manner as to... | 09/29/1992 |
| 5148194 | Ink jet recording apparatus with engaging members for precisely positioning adjacent heads A liquid jet recording head comprises a recording apparatus having an orifice for discharging liquid and an energy generator for generating energy to discharge the liquid. Each recording head has an engaging member which is of complementary contour to an ... | 09/15/1992 |
| 5132705 | Recording head including electrode supporting substrate having thin-walled contact end portion A recording head including at least one electrode, and a substrate structure for supporting each electrode. Each electrode and the substrate are held in contact with a recording medium or a planar intermediate member interposed between the recording mediu... | 07/21/1992 |
| 5119114 | Method and apparatus for centering aligning and attaching carriage shafts in a pen plotter This invention is directed to a method and associated apparatus for allowing the carriage shafts of a pen plotter to be mounted and aligned quickly and accurately without the introduction of any bending stresses or intra-shaft misalignment. The shafts hav... | 06/02/1992 |
| 5107277 | Current sensitized transfer type printer with a heated common electrode A current-sensitized transfer type printer comprising an ink sheet including an ink layer, a conductive layer and a resistance layer which are stacked in this order, a feeding mechanism for feeding the ink sheet in a predetermined direction, a plurality o... | 04/21/1992 |
| 5107283 | Electrostatic recording head with improved alignment of recording electrodes The present invention is directed to an electrostatic recording head comprising an electrode substrate made of an insulating material, a plurality of parallel recording electrodes made of a conductive material and formed on at least one of the side surfac... | 04/21/1992 |
| 5083139 | Thermal head formed of a flat cable encapsulated in a supporting body The present invention enables simplification of the assembly of a thermal head capable of performing printing at a high density and with a high resolution. A stable support of electrodes is also provided, along with an improvement in characteristics. The ... | 01/21/1992 |
| 5079566 | Printing apparatus with a printhead having stratified recording electrodes, return electrode and preheating electrode for use with resistive thermal transfer ribbon An ink transferring printing mechanism includes an ink sheet having a resistance layer, a conductive layer and an ink layer which are stacked in this order, and a recording head. The recording head has a plurality of recording electrodes arranged in a lin... | 01/07/1992 |
| 5072116 | Microprobe preparation thereof and electronic device by use of said microprobe A microprobe is constituted by a single crystal having an apex portion surrounded by facets having specific place directions and having specific crystal faces. The microprobe is provided on a part of a main surface of a substrate or a part of a thin film ... | 12/10/1991 |
| 5065169 | Device to assure paper flatness and pen-to-paper spacing during printing A printer includes an inkjet pen to eject ink drops for printing on the surface of a sheet, a carriage mounted to carry the pen back and forth on the sheet, and a skid-like spacer to ride upon the printed surface. The spacer maintains a preselected spacin... | 11/12/1991 |
| 5059985 | Thermal printing apparatus A printing apparatus for printing on a recording medium by using an ink film which has an electrically resistive layer and a thermally fusible and transferable ink layer. The apparatus includes a thermal head which has a substrate, and a plurality of reco... | 10/22/1991 |
| 5049898 | Printhead having memory element A disposable printing assembly includes a memory element in which data characterizing the assembly can be stored. This data can characterize the identity of the assembly, or one or more of its operational characteristics. Such operational characteristics ... | 09/17/1991 |
| 5039232 | Office machine including a multicolor plotting mechanism A typewriter includes a carriage arranged for reciprocating travel, a receiving arrangement mounted on the carriage, a drive arrangement mounted on the carriage, and a ribbon cartridge receivable in and removable from the receiving arrangement and operati... | 08/13/1991 |
| 5023700 | Minutely patterned structure A patterned structure including a plurality of patterned sheet members which have respective configurations and which are partially superposed on each other and which cooperate with each other to define a plurality of voids. At least one of the sheet memb... | 06/11/1991 |
| 4991300 | Lead automatic supply device for X-Y plotter A lead automatic supply device for an X-Y plotter has a writing implement stocker connected to a first rotary drive device, and a lead supply stocker rotatably disposed above the writing implement stocker. The lead supply stocker is connected to a second ... | 02/12/1991 |
| 4990937 | Device for supporting a print head A device for supporting a print head includes a tabular print head capable of contacting a platen, the print head being mounted on a head-supporting plate retained by a supporting shaft. A central part of the supporting shaft is supported on a fixed recei... | 02/05/1991 |
| 4980705 | Print recording head A plurality of recording electrodes are disposed in parallel form on an elastic metallic thin plate through an insulating layer, a protrusion made of a conductive material is formed in the proximity of the tip of each of recording electrodes, and notched ... | 12/25/1990 |
| 4973987 | Thermal recording head A thermal head for transferring heat-sensitive ink material coated on an ink support onto a recording sheet comprises heating elements capable of coming in pressure contact with the support for heating a transfer part of the ink support. A pressing protru... | 11/27/1990 |
| 4972205 | Thermal printing head A thermal printing head according to the present invention comprises a heat sink plate carrying, on its one surface, heating elements and a presser cover. The presser cover receives heat from the heat sink plate with a time lag through screws used to moun... | 11/20/1990 |
| 4963886 | Thermal printing head The present invention provides a thermal printing head which comprises an elongate heat sink plate, an elongate head circuit board mounted on the heat sink plate, a connector board partially overlapping the circuit board, and an elongate presser cover mou... | 10/16/1990 |
| 4959668 | Device for producing images on printing image carriers The invention proposes an electrical image producing device for use with printing image carriers of printing presses. The main components of the device are writing units designed in the form of electrodes which are able to be activated individually in acc... | 09/25/1990 |
| 4951070 | Charge transfer imaging cartridge mounting and printer There is described a cartridge mounting for locating a cartridge in a printer adjacent a print drum for receiving a charge image from the cartridge. The cartridge includes a spine and has a longitudinal axis substantially parallel to the axis of rotation ... | 08/21/1990 |
| 4922269 | Liquid jet recording head unit, method of making same and liquid jet recording apparatus incorporating same A liquid jet recording head unit comprises a recording head, for forming flying liquid droplets which are discharged through an orifice by the action of energy generated by an energy generating member provided on a substrate and connected to an electrode ... | 05/01/1990 |