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Pub. No.:    WO/2011/136772    International Application No.:    PCT/US2010/032890
Publication Date: 03.11.2011 International Filing Date: 29.04.2010
B41J 2/175 (2006.01), B41J 2/05 (2006.01)
Applicants: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US/US]; 11445 Compaq Center Drive West Houston, TX 77070 (US) (For All Designated States Except US).
ABBOTT, James, E., Jr. [US/US]; (US) (For US Only).
AJAYI, Samuel [US/US]; (US) (For US Only).
BENGALI, Sadiq [US/US]; (US) (For US Only).
HORVATH, Stephen [US/US]; (US) (For US Only).
LONG, Greg, S. [US/US]; (US) (For US Only).
PRAKASH, Satya [US/US]; (US) (For US Only).
PAN, Alfred I-Tsung [US/US]; (US) (For US Only).
SHAARAWI, Mohammed, S. [CA/US]; (US) (For US Only).
PUGLIESE, Roberto, A. [US/US]; (US) (For US Only)
Inventors: ABBOTT, James, E., Jr.; (US).
AJAYI, Samuel; (US).
BENGALI, Sadiq; (US).
HORVATH, Stephen; (US).
LONG, Greg, S.; (US).
PRAKASH, Satya; (US).
PAN, Alfred I-Tsung; (US).
SHAARAWI, Mohammed, S.; (US).
PUGLIESE, Roberto, A.; (US)
Agent: RIETH, Nathan, R.; Hewlett-Packard Company Intellectual Property Administration 3404 E. Harmony Road Mail Stop 35 Fort Collins, CO 80528 (US)
Priority Data:
Abstract: front page image
(EN)A fluid ejection device includes a thin film heater resistor portion having a heater resistor, and a two-layer structure disposed over the heater resistor. The two-layer structure includes a top layer and a bottom layer, with the top layer having a hardness that is at least 1.5 times greater than the hardness of the bottom layer.
(FR)L'invention porte sur un dispositif d'éjection de fluide, ledit dispositif comprenant une partie résistance d'élément chauffant à film mince ayant une résistance d'élément chauffant, et une structure à deux couches disposée sur la résistance d'élément chauffant. La structure à deux couches comprend une couche supérieure et une couche inférieure, la couche supérieure ayant une dureté qui est au moins 1,5 fois supérieure à la dureté de la couche inférieure.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)