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Class Information
Number: 347/64
Name: Incremental printing of symbolic information > Ink jet > Ejector mechanism (i.e., print head) > Drop-on-demand > With thermal force ejection > Composite ejector > Protective
Description: Subject matter wherein one of the layers is provided as a protection against the corrosive nature of the fluid*.










Patents under this class:
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Patent Number Title Of Patent Date Issued
6512284 Thinfilm fuse/antifuse device and use of same in printhead Jan. 28, 2003
6491377 High print quality printhead Dec. 10, 2002
6485131 Ink-jet head base board, ink-jet head, and ink-jet apparatus Nov. 26, 2002
6485130 Bonding process Nov. 26, 2002
6474790 Ink jet recording head Nov. 5, 2002
6467864 Determining minimum energy pulse characteristics in an ink jet print head Oct. 22, 2002
6467884 Substrate unit for liquid discharging head, method for producing the same, liquid discharging head, cartridge, and image forming apparatus Oct. 22, 2002
6454397 Ink-jet head and control method thereof Sep. 24, 2002
6450622 Fluid ejection device Sep. 17, 2002
6439698 Dual curable encapsulating material Aug. 27, 2002
6431687 Manufacturing method of monolithic integrated thermal bubble inkjet print heads and the structure for the same Aug. 13, 2002
6412920 Ink jet printing head, ink jet head cartridge and printing apparatus Jul. 2, 2002
6390703 Media handling system May. 21, 2002
6382775 Liquid ejecting printing head, production method thereof and production method for base body employed for liquid ejecting printing head May. 7, 2002
6378978 Chip structure of inkjet printhead and method of estimating working life through detection of defects Apr. 30, 2002
6364465 Ink jet heads having photoresist layer containing poly (amic acid) Apr. 2, 2002
6361150 Electrostatic discharge protection of electrically-inactive components in a thermal ink jet printing system Mar. 26, 2002
6352338 Ink-jet print head, production method thereof, and printing apparatus with the ink-jet print head Mar. 5, 2002
6341848 Fluid-jet printer having printhead with integrated heat-sink Jan. 29, 2002
6336713 High efficiency printhead containing a novel nitride-based resistor system Jan. 8, 2002
6331044 Corrosion resistant thermal ink jet print cartridge and method of manufacturing same Dec. 18, 2001
6331049 Printhead having varied thickness passivation layer and method of making same Dec. 18, 2001
6328432 Ink jet recording head having mending layers between side walls and electrodes Dec. 11, 2001
6315398 Thermal ink jet heater design Nov. 13, 2001
6315384 Thermal inkjet printhead and high-efficiency polycrystalline silicon resistor system for use therein Nov. 13, 2001
6299294 High efficiency printhead containing a novel oxynitride-based resistor system Oct. 9, 2001
6293654 Printhead apparatus Sep. 25, 2001
6291545 Fluorine-containing epoxy resin composition readily soluble in solvent Sep. 18, 2001
6267471 High-efficiency polycrystalline silicon resistor system for use in a thermal inkjet printhead Jul. 31, 2001
6260956 Thermal ink jet printhead and process for the preparation thereof Jul. 17, 2001
6238041 Heat-generator supporting member for ink-jet head and ink-jet head employing the same May. 29, 2001
6231166 Ink jet head May. 15, 2001
6227640 Variable drop mass inkjet drop generator May. 8, 2001
6224191 Ink jet recording head May. 1, 2001
6161924 Ink jet recording head Dec. 19, 2000
6151042 High performance polymer compositions Nov. 21, 2000
6142612 Controlled layer of tantalum for thermal ink jet printer Nov. 7, 2000
6142606 Ink jet recording head, substrate for use of such head, ink jet cartridge, and ink jet recording apparatus Nov. 7, 2000
6139131 High drop generator density printhead Oct. 31, 2000
6084615 Structure of inkjet nozzle for ink cartridge Jul. 4, 2000
6070969 Thermal inkjet printhead having a preferred nucleation site Jun. 6, 2000
6042221 Ink-jet recording head and ink-jet recording apparatus Mar. 28, 2000
6039436 Thermal ink-jet printhead with lateral thermal insulation for the heating elements Mar. 21, 2000
6012804 Ink jet recording head Jan. 11, 2000
5992983 Liquid jet recording head Nov. 30, 1999
5946013 Ink jet head having a protective layer with a controlled argon content Aug. 31, 1999
5943076 Printhead for thermal ink jet devices Aug. 24, 1999
5869595 Polyimide curing process and improved thermal ink jet printhead prepared thereby Feb. 9, 1999
5844586 Process for making ink jet heater chips Dec. 1, 1998
5808641 Liquid jet head manufacturing method and a liquid jet head manufactured by said manufacturing method Sep. 15, 1998

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