...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7214347 | Printhead mounting system for a microarray spotting instrument A microarray spotter printhead is mounted to a bracket with a semi-kinematic mounting system for avoiding the need for calibration when replaced. ... | 05/08/2007 |
| 7095032 | Focusing of microscopes and reading of microarrays Microscopes, including viewing and other microscopic systems, employ a hinged, tiltable plate to adjust focus on a flat object such as a microscope slide or biochip by motion, achieved by tilting, which is substantially normal to the focus point on the plane of the ... | 08/22/2006 |
| 7055723 | Device and system for dispensing or aspirating/dispensing liquid samples The invention relates to a device (1) for dispensing or aspirating/dispensing liquid samples, including a pump (2) and a micro-ejection device (3), the micro-ejection device (3) having a pulse generator (4) with a chamber (5... | 06/06/2006 |
| 6915928 | Fluid dispenser A dispensation device having a nozzle defining a chamber and a dispensation orifice which communicates with the chamber. A transfer pin is moveably received within the chamber and moveable between a retracted position and a dispensing position. In the dispensing pos... | 07/12/2005 |
| 6916447 | Apparatus and method for transferring small volumes of substances The present invention provides a method and apparatus for dispensing small volumes of selected substances, such as biological reagents or samples, onto substrates. According to one general embodiment, a plurality of spaced, tandemly-arranged substrates are advanced,... | 07/12/2005 |
| 6757758 | Data transfer method, data transfer apparatus and recording apparatus The invention is to simplify the process from pack bits compression to data transfer, thereby improving throughput. For this purpose there are provided a tag generation unit for reading the data stored in the pre-compression data reception buffer, generating a tag f... | 06/29/2004 |
| 5450104 | Ink jet recording apparatus An ink jet recording apparatus that makes a recording of a measured input at a time occurring at a predetermined cycle and includes a control section for making the recording at the time by printing dots in the form of a segment in a recording sheet width... | 09/12/1995 |
| 5095256 | Drive circuit for a piezoelectric actuator A drive circuit for driving a piezoelectric (PZ) stack, in response to an excitation voltage, generates a dimensional strain varying along a sinusoidal waveform in a PZ stack by applying an excitation voltage intermittently to a series connection of the P... | 03/10/1992 |
| 4983991 | Method and apparatus for marking a film in an X-ray apparatus The inventon relates to a method and apparatus for marking or recording patient-related information and other necessary data in connection with X-ray imaging on a certain section of a film (6) by using a marking apparatus (2) which is movable relative to ... | 01/08/1991 |
| 4901158 | Verification stamp equipment Disclosed is a stamping device for use in facsimile equipment, wherein a document has a mark stamped hereon after its information has been transmitted. The stamp device is composed of a stamp body which has a stamp face for marking the document and a hand... | 02/13/1990 |
| 4548134 | Dot image buffer and dot sequence scrambler for dot matrix line printer In a dot matrix printer, a single main shift register is loaded in the non-printing time during which a transversely shuttling print bar is changing direction with the complete dot row to be printed on the next printing pass of the print bar. A custom VLS... | 10/22/1985 |
| 4543644 | Control circuit for matrix-driven recording A control circuit is used for matrix drive recording. It includes a microprocessor, a RAM for storing data to be recorded therein, an address signal editing circuit for modifying the input addresses to the RAM, a shift register for converting the data fro... | 09/24/1985 |
| 4471365 | Recording apparatus Herein disclosed is a battery-operated, dot type recording apparatus which comprises a drive mechanism unit having its number of revolutions regulated by the output of a quartz oscillator, a circuit for connecting a d.c. power source with a meter only whe... | 09/11/1984 |
| 4433339 | Direct-writing recorder A direct-writing recorder of dot type causes an area of a record paper (70) which is to be printed to oscillate in a direction perpendicular to the paper plane for contact with a printing element (22) on a pointer (21) at a given periodic interval. A vibr... | 02/21/1984 |
| 4243314 | Adjustable width punch marking apparatus for photographic printer A photographic printer has a punch marking system for placing cut and end-of-order marks on the photographic paper. The punch marking mechanism is adjustable to accommodate different widths of print paper. The punch marking mechanism includes guide rods w... | 01/06/1981 |
| 4155326 | Mine safety inspection indicator A mine safety inspection indicator including a plurality of rotatable wheels having indicia printed on one side thereof and attached to a panel having windows therein so that the indicia is selectively visible through the windows, and further including sl... | 05/22/1979 |
| 4084259 | Apparatus for dot matrix recording A dot matrix recording system records a wide range of gray levels without compromising recording resolution. Resolution is maintained by using a relatively small dot matrix, preferably a 2 by 2 matrix, for representation of the graphic information at a po... | 04/11/1978 |
| 4044878 | Matrix printer head having a removable assembly A matrix printer head having a plurality of mutually parallel, straight printing pins guided within at least two mating, semi-cylindrical rods. The rod outer surfaces guide armatures which are connected to the printing pins. Components which are subject t... | 08/30/1977 |
| 4020759 | Method and apparatus for marking a web A method and apparatus for applying viscous liquid marking substance in which the marking substance is applied in small amounts at spaced-apart locations to a moving web from the open mouth of a narrow channel which intermittently contacts the web, the ma... | 05/03/1977 |