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Class Information
Number: 400/241.2
Name: Typewriting machines > Including interposed inking device (e.g., ribbon) for record-medium > Ribbon, per se > Particular ribbon material > Synthetic material > Wherein ink is entrapped in ribbon material (e.g., microcapsules, micropores, etc.)
Description: Subject matter wherein the substance includes a component having extremely small orifices or openings or chambers therein, the orifices or openings or chambers each holding a discrete quantity of ink*.

Patents under this class:

Patent Number Title Of Patent Date Issued
6706353 Image forming substrate Mar. 16, 2004
6402402 Pressure-sensitive and heat-sensitive image transfer apparatus for recording Jun. 11, 2002
6210053 Image-forming apparatus with a thermal head including an arcuate bimetal element Apr. 3, 2001
6106173 Image-forming system including a plurality of thermal heads and an image-forming sheet with a plurality of types of micro-capsules Aug. 22, 2000
5172131 Thermal transfer printing processes with multi-use transfer elements Dec. 15, 1992
5106217 Thermocolor ribbon and method of making same Apr. 21, 1992
5104717 Ink and multistrike ribbons incorporating the same Apr. 14, 1992
4884908 Overlappingly overstrikeable ribbon and use thereof in continuously full cassettes Dec. 5, 1989
4782352 Capsule rupture printing system Nov. 1, 1988
4740798 Transfer-type thermal printing device Apr. 26, 1988
4739338 Heat-sensitive transfer recording method Apr. 19, 1988
4725860 Ink carrier film in use with ink jet recording device Feb. 16, 1988
4713281 Multiple-use pressure-sensitive transfer recording media Dec. 15, 1987
4707707 Thermal-transfer ink ribbon Nov. 17, 1987
4672393 Thermal printer Jun. 9, 1987
4662651 Document protection using multicolor characters May. 5, 1987
4652486 Multi-strike ink ribbon Mar. 24, 1987
4624881 Multiple-use pressure-sensitive transfer recording media Nov. 25, 1986
4603986 Ink projecting typewriter ribbon Aug. 5, 1986
4585692 Aliphatic polyurethane matrix transfer medium and porous magnesium silicate filler Apr. 29, 1986
4544292 Multistrike ribbon Oct. 1, 1985
4515489 Overstrike ribbon for print wheels May. 7, 1985
4476176 Multi-colored printing ribbon ink barrier system Oct. 9, 1984
4469516 Pigment preparations; process for their manufacture and their use Sep. 4, 1984
4372582 Stabilizer for electron doner-acceptor carbonless copying systems Feb. 8, 1983
4321286 Process for producing transfer ribbons Mar. 23, 1982
4262937 Carbonless imaging system Apr. 21, 1981
4260664 Transfer elements and process Apr. 7, 1981
4251276 Thermally activated ink and transfer method Feb. 17, 1981
4150187 Transfer elements and process Apr. 17, 1979
4121961 Method of label installation Oct. 24, 1978
4105225 Autographic register systems Aug. 8, 1978
4046073 Ultrasonic transfer printing with multi-copy, color and low audible noise capability Sep. 6, 1977
4018955 Process for producing a ring-shaped one-color or multi-color ribbon and a ribbon produced in accordance with this process Apr. 19, 1977

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