|
| US3950761 | 19 jul 1974 | 13 apr 1976 | Casio Computer Co., Ltd. | Ink pressurizing apparatus for an ink jet recorder |
| US3961337 | 26 aug 1974 | 1 jun 1976 | Teletype Corporation | Disposable ink supply and nozzle system using a simple pump |
| US4152710 | 6 okt 1977 | 1 maj 1979 | Nippon Telegraph & Telephone Public Corporation
Sharp Kabushiki Kaisha | Ink liquid supply system for an ink jet system printer |
| US4549189 | 2 jun 1983 | 22 okt 1985 | Fuji Xerox Co., Ltd. | Thermal printing head |
| US4920362 | 16 dec 1988 | 24 apr 1990 | Hewlett-Packard Company | Volumetrically efficient ink jet pen capable of extreme altitude and temperature excursions |
| US4961076 | 30 dec 1988 | 2 okt 1990 | Hewlett-Packard Company | Reliability improvement for ink jet pens |
| US4992802 | 22 dec 1988 | 12 feb 1991 | Hewlett-Packard Company | Method and apparatus for extending the environmental operating range of an ink jet print cartridge |
| US4994824 | 16 dec 1988 | 19 feb 1991 | Hewlett-Packard Company | Modal ink jet printing system |
| US5039999 | 26 jun 1990 | 13 aug 1991 | Hewlett-Packard Company | Accumulator and pressure control for ink-ket pens |
| US5040002 | 16 mar 1990 | 13 aug 1991 | Hewlett-Packard Company | Regulator for ink-jet pens |
| US5047790 | 12 jan 1990 | 10 sep 1991 | Hewlett-Packard Company | Controlled capillary ink containment for ink-jet pens |
| US5526030 | 5 okt 1992 | 11 jun 1996 | Hewlett-Packard Company | Pressure control apparatus for an ink pen |
| US5537134 | 30 jun 1993 | 16 jul 1996 | Hewlett-Packard Company | Refill method for ink-jet print cartridge |
| US5606988 | 4 feb 1994 | 4 mar 1997 | Hewlett -Packard Company | Connector assembly for ink cartridge |
| US5646666 | 26 jan 1994 | 8 jul 1997 | Hewlett-Packard Company | Back pressure control in ink-jet printing |
| US5751300 | 4 feb 1994 | 12 maj 1998 | Hewlett-Packard Company | Ink delivery system for a printer |
| US5917523 | 30 apr 1996 | 29 jun 1999 | Hewlett-Packard Company | Refill method for ink-jet print cartridge |
