1
Young S You, John D Meyer: Solid ink compositions for thermal ink-jet printing having improved printing characteristics. Hewlett Packard Company, September 29, 1992: US05151120 (151 worldwide citation)

Disclosed is an ink-jet composition including an organic carrier that is solid at 25.degree. C. and liquid at the operating temperature of an ink-jet nozzle and a driver having a critical pressure greater than 10 atmospheres, the carrier and driver being miscible in liquid phase. The ink-jet composi ...


2
Howard Matrick, Michele E Shepard, Young S You: Aqueous ink jet inks containing polyol/alkylene oxide condensates as cosolvents. E I Du Pont de Nemours and Company, January 19, 1993: US05180425 (113 worldwide citation)

An ink for ink jet printers which comprises an aqueous carrier medium, pigment dispersion or dye and a polyol/alkylene oxide condensate cosolvent which eliminates film formation on thermal ink jet resistor surfaces thereby eliminating non-uniformity in optical density. The cosolvent present at least ...


3
Young S You: Water based ink compositions exhibiting reduced crusting, clogging and kogation. Hewlett Packard Company, December 8, 1992: US05169437 (40 worldwide citation)

Disclosed herein are aqueous ink compositions containing a specific humectant or a mixture of such humectants. The use of such humectants in aqueous ink compositions greatly mitigates the problems arising with the crusting and clogging of orifice plates in thermal ink jet printers associated with aq ...


4
Robert J Miller, Young S You, Howard S Tom, An Chung R Lin: Solid ink compositions suitable for use in color transparencies. Hewlett Packard Company, November 9, 1993: US05259874 (26 worldwide citation)

Disclosed herein are substantially homogeneous solid ink-jet ink compositions. The use of such compositions with colored transparencies substantially reduces the level of light scattering as compared to the level of light scattering arising from the use of non-homogeneous ink-jet ink compositions. I ...


5
Miller Robert J, Young S You: Microemulsion ink jet ink composition. Hewlett Packard Company, September 10, 1991: US05047084 (25 worldwide citation)

An ink jet ink in the form of a microemulsion of an organic vehicle phase having a colorant dispersed therein and an aqueous phase containing a surfactant, the vehicle phase preferably being liquid at 70.degree. C. and solid at 20.degree. C.


6
Young S You, John D Meyer: Vaporizable solid ink composition for thermal ink-jet printing. Hewlett Packard Company, November 12, 1991: US05065167 (19 worldwide citation)

An ink jet ink including a waxy carrier that is solid at 25.degree. C. and liquid at the operating temperature of an ink jet nozzle and a driver having a critical pressure greater than 10 atmospheres, the carrier and driver being miscible in liquid phase.


7
Young S You: Anti-wetting in fluid nozzles. Hewlett Packard Company, Jeffery B Fromm, November 26, 1985: US04555062 (11 worldwide citation)

A novel ionic surface preparation for nozzles used in spraying fluid droplets such as used in ink jet printers is disclosed. In conjunction with an oppositely charged ionic anti-wetting agent dissolved in the sprayed fluid, the new surface preparation reliably reduces the wetting of the nozzle surfa ...


8
Young S You: Anti-wetting in fluid nozzles. Hewlett Packard Company, Jeffery B Fromm, April 22, 1986: US04583690 (7 worldwide citation)

A novel ionic surface preparation for nozzles used in spraying fluid droplets such as used in ink jet printers is disclosed. In conjunction with an oppositely charged ionic anti-wetting agent dissolved in the sprayed fluid, the new surface preparation reliably reduces the wetting of the nozzle surfa ...


9
Young S You, Robert J Miller, An Chung R Lin: Solid driver for the solid ink jet ink. Hewlett Packard Company, July 27, 1993: US05230732 (4 worldwide citation)

A single-pulse driver for a bubble driven ink jet ink having good staying power at operating temperature, the driver being a solvent for the ink carrier, having a molecular weight less than 150, a boiling point less than 140 centigrade degrees higher than its melting point and a boiling temperature ...


10
Young S You, Robert J Miller, An Chung R Lin: Solid driver for the solid ink jet ink. Hewlett Packard Company, June 2, 1992: US05118347 (4 worldwide citation)

A single-pulse driver for a bubble driven ink jet ink having good staying power at operating temperature, the driver being a solvent for the ink carrier, having a molecular weight less than 150, a boiling point less than 140 centigrade degrees higher than its melting point and a boiling temperature ...