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| Number | Title | Issue Date |
| 5322811 | Method for manufacturing a recording head with integrally housed semiconductor functional elements A method for manufacturing a recording head with integrally housed functional elements includes the steps of: (a) providing a plurality of base members each having a single-crystal semiconductor layer thereon, (b) bonding the single-crystal semiconductor layer... | 06/21/1994 |
| 5264874 | Ink jet recording system A recording head for discharging ink by using thermal energy comprises a plurality of outlets for discharging ink and a substrate including a common substrate plate of P type, a plurality of electrothermal converting elements and a plurality of functional... | 11/23/1993 |
| 5216447 | Recording head An ink jet recording apparatus having a recording head wherein an electrothermal converting element for generating the emission energy and a semiconductor functional element are integrally formed within a semiconductor substrate. The functional element wi... | 06/01/1993 |
| 5212503 | Liquid jet recording head having a substrate with minimized electrode overlap A substrate for use with a liquid jet recording head has a semiconductor substrate, functional elements formed on said semiconductor substrate, and electro-thermal transducers electrically connected to the functional elements for generating thermal energy... | 05/18/1993 |
| 5175565 | Ink jet substrate including plural temperature sensors and heaters A substrate for a liquid jet recording head includes a plurality of built-in energy elements forming an array for generating thermal energy for ejecting liquid, built-in electrode wiring for supplying electric signals to the energy generating elements and... | 12/29/1992 |
| 5159353 | Thermal inkjet printhead structure and method for making the same An improved thermal inkjet printhead having MOSFET drive transistors incorporated therein. The gate of each MOSFET transistor is formed by applying a layer of silicon dioxide onto a silicon substrate, applying a layer of silicon nitride onto the silicon d... | 10/27/1992 |
| 5157419 | Recording head substrate having a functional element connected to an electrothermal transducer by a layer of a material used in a heater layer of the electrothermal transducer A recording head has a liquid emission section with an orifice for emitting ink, an electro-thermal transducer producing thermal energy for ink emission and a functional element electrically connected to the electro-thermal transducer. The functional elem... | 10/20/1992 |
| 5122812 | Thermal inkjet printhead having driver circuitry thereon and method for making the same An improved thermal inkjet printhead and manufacturing method in which driver circuitry (e.g. MOSFET transistors), heating resistors, and a specialized arrangement of conductive elements are used. A substrate is provided having a plurality of drive transi... | 06/16/1992 |
| 5081474 | Recording head having multi-layer matrix wiring A recording head has a liquid channel defining member for defining a liquid channel communicated to a discharging opening for discharging ink, and a base member having a plurality of electricity-heat converting elements for generating heat to be transmitt... | 01/14/1992 |
| 5081473 | Temperature control transducer and MOS driver for thermal ink jet printing chips A transducer for a thermal ink jet printhead has a primary heating region having a tantalum layer, a silicon nitride layer and a polysilicon resistor layer. An n- drift layer resistor serves as a secondary heating region and a field layer of s... | 01/14/1992 |
| 5075250 | Method of fabricating a monolithic integrated circuit chip for a thermal ink jet printhead A thermal jet ink printing is provided with an improved printhead. The printhead is formed by monolithic integration of MOS logic elements and drivers onto the same silicon substrate containing the resistive elements using a more efficient manufacturing p... | 12/24/1991 |
| 5063655 | Method to integrate drive/control devices and ink jet on demand devices in a single printhead chip A method to integrate thermal drop on demand ink jet devices and related pulse driver circuitry for chips used in thermal ink jet printers. This integrated printhead chip is made by first fabricating on the substrate the driver pulse circuitry through the... | 11/12/1991 |
| 5055859 | Integrated thermal printhead and driving circuit Disclosed is a thermal print head in which heating resistance elements are arranged with high density. The thermal print head comprises a head substrate, formed of a single-crystal silicon wafer, and a print driver circuit element. The print driver circui... | 10/08/1991 |
| 5045870 | Thermal ink drop on demand devices on a single chip with vertical integration of driver device This application discloses a novel method to integrate thermal drop on demand ink jet devices and related pulse driver circuitry for chips used in thermal ink jet printers. This integrated printhead chip is made by first fabricating on the substrate the d... | 09/03/1991 |
| 4947192 | Monolithic silicon integrated circuit chip for a thermal ink jet printer A thermal jet ink printing system is provided with an inproved printhead. The printhead is formed by monolithic integration of MOS transistors switches onto the same silicon substrate containing the resistive elements. In a preferred embodiment, the trans... | 08/07/1990 |
| 4899180 | On chip heater element and temperature sensor This bubblejet device has integrated into it a number of heater resistors and a temperature sensor which operate in conjunction with a temperature regulating circuit to heat the chip to its optimum operating temperature within seconds of turn-on, and ther... | 02/06/1990 |
| 4862197 | Process for manufacturing thermal ink jet printhead and integrated circuit (IC) structures produced thereby A new and improved thermal ink jet printhead and fabrication process therefor are described. In one embodiment of this invention, heater resistors are formed on one area of an insulating substrate and relative large area electrical contacts are formed on ... | 08/29/1989 |
| 4719477 | Integrated thermal ink jet printhead and method of manufacture This application discloses a novel thermal ink jet printhead and related integrated pulse driver circuit useful in thermal ink jet printers. This combined printhead and pulse drive integrated circuit includes a first level of metalization comprising a ref... | 01/12/1988 |
| 4429321 | Liquid jet recording device A liquid jet recording device comprises a plurality of heat actuating chamber portions communicating with ejecting orifices for ejecting a liquid to form flying droplets, an electrothermal transducer provided for each heat actuating chamber portion so as ... | 01/31/1984 |
| 4288801 | Monolithic HVMOSFET active switch array Integrated monolithic arrays of high voltage metal oxide semiconductor field effect transistors having closed geometry grounded peripheries for interdevice isolation are able to function as drivers that may be switched on and off. The HVMOSFET'S include D... | 09/08/1981 |
| 3949410 | Jet nozzle structure for electrohydrodynamic droplet formation and ink jet printing system therewith The practice of this disclosure obtains a monolithic structure useful for electrohydrodynamically synchronizing the formation of droplets in a jet stream exiting from a jet nozzle. The monolithic structure is primarily adaptable for ink jet printing. The ... | 04/06/1976 |
