1
Loc V Bui, Donald R Titterington, James D Rise, C Wayne Jaeger, Jon C Mutton, Hue P Le: Imaging process. Tektronix, Ralph D Alessandro, February 14, 1995: US05389958 (289 worldwide citation)

A method and the apparatus for employing the method are disclosed whereby an intermediate transfer surface of a layer of sacrificial liquid is applied to a supporting surface and a phase change ink is deposited on the liquid layer. The inked image is then contact transferred to a final receiving sub ...


2
John S Moore, Hue P Le, J Kirk McGlothlan: Ink jet print head with electropolished diaphragm. Tektronix, Ralph D Alessandro, April 11, 1995: US05406318 (48 worldwide citation)

The present invention provides an ink jet print head having an improved driver design and capable of extended and continuous periods of operation with substantially reduced rectified diffusion-induced printing quality degradation. In preferred ink jet print heads of the present invention, the ink-co ...


3
Hue P Le, Jeffrey J Anderson, Guenther W Wimmer, Monte J Rhoads, Ted E Deur: Method and apparatus for purging an ink jet head. Tektronix, John D Winkelman, David P Petersen, February 23, 1988: US04727378 (43 worldwide citation)

An ink jet head 10 has an ink chamber 14 which receives ink from an ink inlet passageway 38. Pressure pulses applied to the ink chamber cause the ejection of ink drops from an ink drop forming orifice 23 and toward printing medium. A purging outlet 41 communicates with the ink chamber through a purg ...


4
Hue P Le, Joy Roy, Ronald L Adams, James C Oswald, Jeffery J Anderson: Air assisted ink jet head with single compartment ink chamber. Tektronix, John D Winkelman, David P Petersen, March 1, 1988: US04728969 (41 worldwide citation)

An air-assisted drop-on-demand ink jet head 10 has a single compartment ink chamber 14 and is designed for operation over a wide range of ink drop repetition rates, including extremely high repetition rates, such as twenty kilohertz. The components included in the ink jet head have natural resonance ...


5
Hue P Le, Charles W Jaeger, James C Oswald: Air assisted ink jet head with projecting internal ink drop-forming orifice outlet. Tektronix, John D Winkelman, David P Petersen, September 23, 1986: US04613875 (37 worldwide citation)

An air assisted drop-on-demand ink jet head 10 has an ink chamber with an ink drop-forming orifice outlet 23 from which ink drops are generated in response to pressure waves caused by a piezoelectric crystal 56. The ink drops are carried by air outwardly through an external orifice 24 and toward pri ...


6
Ronald F Burr, David A Tence, Hue P Le, Ronald L Adams, Jon C Mutton: Method and apparatus for producing dot size modulated ink jet printing. Tektronix, Ralph D Alessandro, Richard B Preiss, February 27, 1996: US05495270 (36 worldwide citation)

An ink jet (10) apparatus and method provides high-resolution gray scale printing by providing multiple PZT drive waveforms (100, 110, 120), each having a spectral energy distribution that excites a different modal resonance of ink in an ink jet print head orifice (14). By selecting the particular d ...


7
B M Karandikar, Loc V Bui, Hue P Le: Hyperthermogelling aqueous phase change inks and methods for using them in an ink jet printer. Tektronix, Ralph D Alessandro, October 31, 1995: US05462591 (31 worldwide citation)

An aqueous phase change ink contains a selected concentration of hyperthermogelling component that causes the ink to gel when its temperature is increased to its thermo-inversion point or when the concentration of the hyperthermogelling component is increased by evaporation, or substrate absorption, ...


8
Hue P Le, Hoi P Le, Thanh P Le, Linh B Tran: Ultrasonic bonding of ink-jet print head components. PicoJet, Stoel Rives, March 11, 2003: US06530653 (27 worldwide citation)

A piezoelectric ceramic ink-jet print head is made by ultrasonic bonding processes. Several improved features of ink jet print heads include more cost-effective bonding processes using an ultrasonic bonding technique, an improved piezoelectric ceramic structural element pattern, and improved print h ...


9
Jon C Mutton, Hue P Le, Qiming Zhang, Ronald L Adams, L Eric Cross, Thomas R Shrout, Qiyue Chia Jiang: Ferroelectric relaxor actuator for an ink-jet print head. Tektronix, Ralph D Alessandro, Richard B Preiss, August 4, 1998: US05790156 (25 worldwide citation)

A ferroelectric relaxor ceramic actuator material, such as lead magnesium niobate ("PMN"), has high electromechanical conversion efficiency, exhibits wide operating and manufacturing temperature ranges, does not require permanent polarization, and provides useful mechanical activity with reduced ele ...


10
Hue P Le, James C Oswald: Film-protected print head for an ink jet printer or the like. Tektronix, William S Lovell, John D Winkelman, John Smith Hill, March 29, 1988: US04734706 (13 worldwide citation)

A viscoelastic and ink-immiscible fluid is used to form a membrane over the ink orifice of a drop-on-demand, pressure pulse ink jet head. The membrane lies in a plane perpendicular to the direction of emission of ink drops, and provides a barrier between the ink orifice and the external atmosphere. ...