Hewlett-Packard Company

Harold Lee Van Nice

Neal W Meyer

Salim Khasawinah

Arun K Agarwal

Kit C Baughman

Jennifer M Korngiebel

Ronald Albert Askeland

Matthew David Giere

Noah C Lassar

Alfred I Pan

Satya Prakash

The invention contemplates a flexible film, and a printhead (TAB head assembly) comprising the same; the flexible film having a converted surface with improved resistance. The converted surface comprises a carbon rich layer, preferably, Diamond Like Carbon (DLC) created through simultaneous surface treatment by multiplexed lasers.

Ink-jet printhead

A novel polymeric orifice plate for a printhead. The plate includes a recess in the top surface thereof which terminates at a position between the top and bottom plate surfaces. The recess communicates with a bore which passes through the remainder of the plate and terminates at the bottom surface. The recess has an upper end with a first opening therein, a lower end with a second opening therein, a side wall, and a bottom wall at the lower end The first opening is larger than the second opening. Application of physical force to the plate does not disturb the second opening in the recess which is &ldquo;inset&rdquo;. The recessed bottom wall (and possibly the top surface) of the plate may include at least one layer of coating material thereon for protective, wettability-control, and other purposes. These designs insure proper ink drop trajectory and high-quality image generation.

High efficiency orifice plate structure and printhead using the same

A novel polymeric orifice plate for a printhead. The plate includes a recess in the top surface thereof which terminates at a position between the top and bottom plate surfaces. The recess communicates with a bore which passes through the remainder of the plate and terminates at the bottom surface thereof. The recess has an upper end with a first opening therein, a lower end with a second opening therein, and a side wall which is preferably oriented at a right angle relative to the top surface of the plate. The recess may also have a bottom wall at the lower end. The first opening is larger than the second opening. The application of physical force to the plate does not disturb the second opening in the recess which is 'inset' and protected. This design insures proper ink drop trajectory and the generation of high-quality printed images.

The present invention is a method of treating foam for improving wettability. The method includes treating foam with reactive species which interact to produce reaction products. The reaction products are then removed from foam. Finally, after removing reaction products the foam is treated with reactive species which interact to produce additional reaction products.

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Corvallis, OR, United States of America

Harold Lee Van Nice