1
Ross R Allen, Si Ty Lam, Paul H McClelland, Eric G Hanson: Wide inkjet printhead. Hewlett Packard Company, November 21, 1995: US05469199 (134 worldwide citation)

A novel, wide inkjet printhead and method of forming said inkjet printhead is disclosed, wherein a pattern of orifices are formed, using a step-and-repeat process, in a flexible tape using laser ablation or other suitable etching devices. The location of the orifices corresponds to where ink will be ...


2
Julie E Fouquet, Phillip W Barth, Kok Wai Chang, Leslie A Field, Eric G Hanson, Long Yang, David K Donald: Total internal reflection optical switches employing thermal activation. Hewlett Packard Company, December 16, 1997: US05699462 (89 worldwide citation)

A switching element defines a transmitting state and a reflecting state for a pair of intersecting waveguides that have a gap at their intersection. In the preferred embodiment, the switching element exhibits total internal reflection at the gap sidewall from one waveguide to the other when not in t ...


3
Christopher A Schantz, Eric G Hanson, Si Ty Lam, Paul H McClelland, William J Lloyd, Laurie S Mittelstadt, Alfred I Tsong Pan: Laser ablated nozzle member for inkjet printhead. Hewlett Packard Company, April 19, 1994: US05305015 (84 worldwide citation)

In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form tapered inkjet orifices. The nozzle member is then mounted to a substrate containing heating elements, each heating element being associated with a singl ...


4
Eric G Hanson: Optical switch attenuator. Hewlett Packard Company, Douglas A Kundrat, Edward Y Wong, October 18, 1983: US04410238 (67 worldwide citation)

An optical switch having low insertion loss and low crosstalk is provided by two slabs of birefringent material having a polarization rotator as a control element interposed therebetween. By controlling the polarization rotator electrically, a selectable ratio of transmitted-to-displaced output opti ...


5
Christopher A Schantz, Eric G Hanson, Si Ty Lam, Paul H McClelland, William J Lloyd, Laurie S Mittelstadt, Alfred I Pan: Nozzle member including ink flow channels. Hewlett Packard Company, March 1, 1994: US05291226 (53 worldwide citation)

In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form inkjet orifices, ink channels, and vaporization chambers in the unitary nozzle member. The nozzle member is then mounted to a substrate containing heatin ...


6
Christopher A Schantz, Eric G Hanson, Si Ty, Paul H McClelland, William J Lloyd, Winthrop D Childers: Integrated nozzle member and tab circuit for inkjet printhead. Hewlett Packard Company, Dennis G Stenstrom, August 15, 1995: US05442384 (36 worldwide citation)

In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form inkjet orifices. The nozzle member also has formed on it conductive traces for supplying electrical signals to heating elements on a substrate mounted to ...


7
Alfred I Tsung Pan, Eric G Hanson, Christopher A Schantz, Winthrop D Childers: Plastic substrate for thermal ink jet printer. Hewlett Packard Company, April 16, 1991: US05008689 (31 worldwide citation)

A substrate for the print head of an ink jet printer includes a plastic base, a metallization layer overlying the plastic base, and a dielectric structure overlying the metallization layer. A thin film resistor is deposited over the substrate, as required. Preferred materials include polyimide plast ...


8
Christopher A Schantz, Eric G Hanson, Si Ty Lam, Paul H McClelland, William J Lloyd, Laurie S Mittelstadt, Alfred I Pan: Method of making a nozzle member including ink flow channels. Hewlett Packard Company, April 25, 1995: US05408738 (30 worldwide citation)

In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form inkjet orifices, ink channels, and vaporization chambers in the unitary nozzle member. The nozzle member is then mounted to a substrate containing heatin ...


9
Eric G Hanson, Ronald Hiskes, Christopher A Schantz: Optical fiber with hermetic seal and method for making same. Hewlett Packard Company, John A Frazzini, April 23, 1985: US04512629 (24 worldwide citation)

A coating is applied to an optical fiber to form a thin hermetic seal. The coating is preferably applied on-line by a process such as chemical vapor deposition. The coating retains its integrity under extreme conditions of temperature and pressure thereby expanding the range of uses of optical fiber ...


10
Alfred I Tsung Pan, Ross R Allen, Eric G Hanson: Solder jet printhead. Hewlett Packard Company, Timothy Rex Croll, July 14, 1998: US05779971 (22 worldwide citation)

A solder drop ejector is disclosed where a current through liquid solder in a channel flows in a direction opposite to the direction of current through a fixed conductor insulated from the channel. The magnetic fields generated repulse the solder toward an orifice to eject a droplet of solder. The d ...