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Naoto Kawamura Patents
Inventor:
Kawamura; Naoto
Address:
Corvallis, OR
No. of patents:
106
Patents:


1 2 3


Patent Number Title Of Patent Date Issued
7204933 Method of forming pillars in a fully integrated thermal inkjet printhead April 17, 2007
Pillars are formed in a fully integrated thermal inkjet printhead to prevent particles from entering into a nozzle chamber along an ink refill channel. The pillars are formed after a step of applying a thin film structure to a substrate. At one step, pits are etched through the thin
7137690 Interconnect circuit November 21, 2006
A print cartridge includes a cartridge body having a lower portion and a vertical wall. A printhead is coupled with the lower portion of the cartridge body. A contact array including a plurality of contact areas is disposed on the vertical wall. The contact array is one of at least two
7111929 Magnetically-actuated fluid control valve September 26, 2006
This disclosure provides a valve which is controlled by a magnetic actuator. More specifically, the actuator is a polarized, magnetic actuator, that is, a magnetic actuator containing both a permanent magnet and an electromagnet. The actuator can be an inexpensive commercial relay ha
7101029 Interconnect circuit September 5, 2006
A printing apparatus includes one of a first cartridge or a second cartridge. The first cartridge has a first contact array including a plurality of contact areas. The second cartridge has a second contact array including a plurality of contact areas. The locations of the contact are
7060821 Osteoclast differentiation inhibitors June 13, 2006
A compound represented by formula (I); a process for producing a compound (substance F-1490) of formula (I), wherein X represents --O-- and R represents a hydroxyl group, by using a microorganism belonging to the genus Cunninghamella; and a Cunninghamella sp. F-1490 strain (FERM BP-8
7056444 Method of forming pillars in a fully integrated thermal inkjet printhead June 6, 2006
Pillars are formed in a fully integrated thermal inkjet printhead to prevent particles from entering into a nozzle chamber along an ink refill channel. The pillars are formed after a step of applying a thin film structure to a substrate. At one step, pits are etched through the thin
7032994 Interconnect circuit April 25, 2006
A print cartridge includes a cartridge body having a lower portion and a vertical wall. A printhead is attached to the lower portion of the cartridge body. A contact array having a first pair of columnar arrays of contact areas and a second pair of columnar arrays of contact areas is
7026352 Physiologically active substances April 11, 2006
The present invention provides a novel bioactive substance having an antitumor activity and a process for producing it, and a medical use thereof. Namely, it provides a 12-membered ring macrolide compound represented by the following formula obtained from the incubation solution of S
6997538 Inkjet printing with air current disruption February 14, 2006
An inkjet printer includes a printhead having a plurality of ink orifices formed therein. During printing, ink drops are ejected through the ink orifices into a print zone between the printhead and a print medium. An air current disruption system directs an air stream through the print
6966112 Methods of fabricating FIT firing chambers of different drop weights on a single printhead November 22, 2005
Inkjet printheads capable of printing smaller and larger drop-weight quantities of ink, and methods of manufacturing the inkjet printheads, are disclosed. The inkjet printhead includes a substrate. One or more portions of the substrate may be etched such that the substrate might have
6962406 Fluid ejection device and method of manufacture November 8, 2005
A fluid ejection device capable of ejecting fluid onto media and a method of manufacture are provided. The device has a carrier having an upper surface that defines a recess. A fluid ejecting substrate is disposed in the recess and is configured for establishing electrical and fluidic
6905619 Method of forming pillars in a fully integrated thermal inkjet printhead June 14, 2005
Pillars are formed in a fully integrated thermal inkjet printhead to prevent particles from entering into a nozzle chamber along an ink refill channel. The pillars are formed after a step of applying a thin film structure to a substrate. At one step, pits are etched through the thin
6902259 Direct imaging polymer fluid jet orifice June 7, 2005
A process for creating and an apparatus employing shaped orifices in a semiconductor substrate. A first layer of material is applied on the semiconductor substrate then a second layer of material is then applied upon the first layer of material. An orifice image is then transferred to
6890068 Ink containment system for an ink-jet pen May 10, 2005
A porous foam based ink containment system is provided with grooves defined in the exterior portion thereof, for storing ink, while preventing ink leakage from the ink-jet pen. The grooves provide passageways to allow air diffused throughout the ink and trapped air bubbles within the foa
6886905 Inkjet printing with air movement system May 3, 2005
A printer for printing on a print medium includes a printhead having ink orifices formed therein through which ink drops are ejected into a print zone between the printhead and the print medium during printing, wherein the printhead has a scan axis oriented substantially perpendicular to
6783689 Method of forming pillars in a fully integrated thermal inkjet printhead August 31, 2004
Pillars are formed in a fully integrated thermal inkjet printhead to prevent particles from entering into a nozzle chamber along an ink refill channel. The pillars are formed after a step of applying a thin film structure to a substrate. At one step, pits are etched through the thin
6776915 Method of manufacturing a fluid ejection device with a fluid channel therethrough August 17, 2004
A monolithic inkjet printhead is formed using single-side fabrication processes. Printing elements and feed channels are formed by processes working from a top of the die. During formation of the printing elements filler material is applied to the feed channel. Such material is later
6761439 Magnetically-actuated fluid control valve July 13, 2004
This disclosure provides a valve which is controlled by a magnetic actuator. More specifically, the actuator is a polarized, magnetic actuator, that is, a magnetic actuator containing both a permanent magnet and an electromagnet. The actuator can be an inexpensive commercial relay ha
6719398 Inkjet printing with air movement system April 13, 2004
An inkjet printer includes a printhead having a plurality of ink orifices formed therein. During printing, ink drops are ejected through the ink orifices into a print zone between the printhead and a print medium with an intended ink drop trajectory toward the print medium. An air moveme
6718632 Method of making a fluid-jet ejection device April 13, 2004
A method of creating a fluid ejection device is described. The fluid ejection device has a substrate having a set of thin-film layers disposed on a first surface. A photoresist is applied on the set of thin-film layers, the photoresist has openings defined therein. The set of thin-film
6692111 Electrical interconnect for an inkjet die February 17, 2004
An electrical interconnect for an inkjet printhead comprising an ink-ejecting semiconductor die is described. The ink-ejecting die further comprises a substrate having an opposing upper surface, lower surface, and a thin film stack. The upper surface of the substrate is beveled on at
6660175 Method of forming pillars in a fully integrated thermal inkjet printhead December 9, 2003
Pillars are formed in a fully integrated thermal inkjet printhead to prevent particles from entering into a nozzle chamber along an ink refill channel. The pillars are formed after a step of applying a thin film structure to a substrate. At one step, pits are etched through the thin
6648437 Fluid ejection device and method of fluid ejection November 18, 2003
A fluid ejection device capable of ejecting fluid onto media. The device includes a carrier having an upper surface that defines a recess. The device further includes a fluid ejecting substrate disposed therein that is configured for establishing electrical and fluidic coupling with the
6641744 Method of forming pillars in a fully integrated thermal inkjet printhead November 4, 2003
Pillars are formed in a fully integrated thermal inkjet printhead to prevent particles from entering into a nozzle chamber along an ink refill channel. The pillars are formed after a step of applying a thin film structure to a substrate. At one step, pits are etched through the thin
6640402 Method of manufacturing an ink actuator November 4, 2003
An inkjet printer printhead utilizes a substrate, an orifice layer, and a directionally biased electrostrictive polymer ink actuator disposed between the orifice layer and the substrate to eject ink from the printhead. The electrostrictive polymer ink actuator has a passivation layer
6600828 Image processing method and apparatus, and storage medium therefor July 29, 2003
When additional information is embedded into image data, both image quality and tolerance are improved. The image processing method includes the steps of: providing a plurality of pixels or a plurality of spatial-frequency components into which additional information is to be embedded; a
6520627 Direct imaging polymer fluid jet orifice February 18, 2003
A process for creating and an apparatus employing shaped orifices in a semiconductor substrate. A first layer of material is applied on the semiconductor substrate then a second layer of material is then applied upon the first layer of material. An orifice image is then transferred to
6513896 Methods of fabricating fit firing chambers of different drop weights on a single printhead February 4, 2003
Inkjet printheads capable of printing smaller and larger drop-weight quantities of ink, and methods of manufacturing the inkjet printheads, are disclosed. The inkjet printhead includes a substrate. One or more portions of the substrate may be etched such that the substrate might have
6481832 Fluid-jet ejection device November 19, 2002
The invention is a fluid ejection device, such as a printhead, that has a substrate with a first surface mating to an orifice layer, preferably through a stack of thin-film layers. The orifice layer defines a fluid chamber interfacing to an orifice opening or nozzle. The substrate has a
6477281 Image processing system having multiple processors for performing parallel image data processing November 5, 2002
An image processing apparatus is composed of an image memory comprising a plurality of memory elements, and a processor unit comprising a plurality of processor elements. By suitably engineering the arrangement of the image memory of memory elements, the arrangement of the processor unit
6474772 Method of determining thermal turn on energy November 5, 2002
A method of determining thermal turn on energy is disclosed. The method comprises heating a fluid ejection device to a predetermined temperature that is below a fluid ejection temperature; applying firing pulse bursts to a resistor of said fluid ejection device, the pulses in each of sai
6454955 Electrical interconnect for an inkjet die September 24, 2002
An electrical interconnect for an inkjet printhead comprising an ink-ejecting semiconductor die is described. The ink-ejecting die further comprises a substrate having an opposing upper surface, lower surface, and a thin film stack. The upper surface of the substrate is beveled on at
6447102 Direct imaging polymer fluid jet orifice September 10, 2002
A process for creating and an apparatus employing shaped orifices in a semiconductor substrate. A first layer of material is applied on the semiconductor substrate then a second layer of material is then applied upon the first layer of material. An orifice image is then transferred to
6365058 Method of manufacturing a fluid ejection device with a fluid channel therethrough April 2, 2002
One method of fabricating a fluid ejection device comprises forming a heating element on a first surface of a substrate. Adjacent the heating element, a hole is formed through the first surface to define a fill channel. The fill channel is filled with a filler material, and after fil
6325354 Magnetically-actuated fluid control valve December 4, 2001
This disclosure provides a valve which is controlled by a magnetic actuator. More specifically, the actuator is a polarized, magnetic actuator, that is, a magnetic actuator containing both a permanent magnet and an electromagnet. The actuator can be an inexpensive commercial relay ha
6322201 Printhead with a fluid channel therethrough November 27, 2001
A printhead has a substrate with a first surface, an opposite substantially parallel second surface, and an edge surface extending from the first surface to the second surface. The substrate further includes a fluid channel that extends from the edge surface inward away from the edge
6309054 Pillars in a printhead October 30, 2001
Pillars are formed in a fully integrated thermal inkjet printhead to prevent particles from entering into a nozzle chamber along an ink refill channel. The pillars are formed after a step of applying a thin film structure to a substrate. At one step, pits are etched through the thin
6162589 Direct imaging polymer fluid jet orifice December 19, 2000
A process for creating and an apparatus employing shaped orifices in a semiconductor substrate. A first layer of material is applied on the semiconductor substrate then a second layer of material is then applied upon the first layer of material. An orifice image is then transferred to
6158846 Forming refill for monolithic inkjet printhead December 12, 2000
A refill channel for multiple rows of nozzles is formed in a silicon die by thinning the die in the vicinity of the rows, then etching respective trenches within the thinned portion of the die. Monolithic architectures including such trenches are achieved for existing inkjet nozzle geome
6137443 Single-side fabrication process for forming inkjet monolithic printing element array on a substr October 24, 2000
A monolithic inkjet printhead is formed using single-side fabrication processes. Printing elements and feed channels are formed by processes working from a top of the die. During formation of the printing elements filler material is applied to the feed channel. Such material is later
6126276 Fluid jet printhead with integrated heat-sink October 3, 2000
A printhead used to eject fluid onto a recording medium has an integrated heat-sink which is used to cool the energy dissipation elements used to propel the fluid from the printhead. The printhead is comprised of a semiconductor substrate that has been processed with thin-film layers. On
6126273 Inkjet printer printhead which eliminates unpredictable ink nucleation variations October 3, 2000
An inkjet printer printhead utilizes a substrate, an orifice layer, and a directionally biased electrostrictive polymer ink actuator disposed between the orifice layer and the substrate to eject ink from the printhead. The electrostrictive polymer ink actuator has a passivation layer
6019907 Forming refill for monolithic inkjet printhead February 1, 2000
A refill channel for multiple rows of nozzles is formed in a silicon die by thinning the die in the vicinity of the rows, then etching respective trenches within the thinned portion of the die. Monolithic architectures including such trenches are achieved for existing inkjet nozzle geome
5917947 Image processing method and apparatus permitting use of PDL in compression memory June 29, 1999
In an image processing apparatus, a memory stores encoded image data, and command data is interpreted and converted into image data. The encoded image data stored in the memory is decoded and synthesized with the converted image data. The resulting synthesized image data is then enco
5861892 Image processing apparatus using compressed-data processing January 19, 1999
An image processing apparatus in which image data is input, a generator generates area information and a processor processes the image data in accordance with the area information. The generator includes a first generator for generating the area information by using area data for each
5812165 Leak resistant ink-jet pen September 22, 1998
A three-color ink-jet cartridge has a conduit connecting an ink reservoir to a print head orifice. The conduit includes a standpipe which has a pair of internal longitudinal grooves to permit ink to flow past a trapped bubble in the standpipe thereby preventing ink leakage through the
5812146 Image processing apparatus using compressed data processing September 22, 1998
There is disclosed an image processing apparatus in which original image data are compressed by encoding to a smaller quantity, then the image processing is conducted in such compressed form, and thus processed data are released with a high resolving power and a satisfactory tonal re
5714985 Image processing system capable of high-speed and high-resolution image synthesis February 3, 1998
An image processing system, particularly for a color image, capable of various and precise image processings. For this purpose there are provided a memory for ordinary image processing, additional memories for expanding the memory capacity, and a system bus, an address bus and a high-spe
5712929 Image processing apparatus January 27, 1998
An image processing apparatus comprises an input device for inputting an image data, a first converter circuit for converting the input image signal to an analog image output and a second converter circuit for converting the input image data to a digital image output. The first conve
5692210 Image processing apparatus having parallel processors for communicating and performing positiona November 25, 1997
An image processing apparatus is composed of an image memory comprising a plurality of memory elements, and a processor unit comprising a plurality of processor elements. By suitably engineering the arrangement of the image memory of memory elements, the arrangement of the processor unit
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