Abstract: Compounds represented by formula (I) below; a process for producing the compounds by culturing a microorganism belonging to the genus Aspergillus and isolating the above-mentioned compounds from the culture; an angiogenesis inhibitory agent containing as an active ingredient the compounds; and an Aspergillus sp. F-1491 (FERM BP-8288) strain capable of producing the compounds. In formula (I), R represents a methyl group or an ethyl group, R1 represents a hydrogen atom, a chlorine atom, a hydroxyl group or a methoxy group, R2 represents a hydroxyl group, or R1 and R2 taken together form an epoxy ring structure.

Abstract: 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 film structure. At another step, material for an orifice layer is deposited into the pits. At another step, a firing chamber is etched into the orifice layer. At another step, a trench is etched into the backside of the wafer in the vicinity of the filled pits. The material filling each pit is not removed and remains in place to define the respective pillars. Two or more pillars are formed within the trench for each inkjet nozzle chamber. Alternatively pillars are formed by depositing material into the underside trench and performing photoimaging processes.

Abstract: 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-8287) capable of producing the substance F-1490; and an osteoclast differentiation inhibitory agent containing as an active ingredient the compound represented by formula (I): wherein X represents —O— or —CH2—, and R represents a hydroxyl group when X represents —O—, or a hydrogen atom when X represents —CH2—.

Abstract: 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 the first layer of material and a fluid-well image is transferred to the second layer of material. That portion of the second layer of material where the orifice image is located is then developed along with that portion of the first layer of material where the fluid well is located to define an orifice in the substrate.

Abstract: 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 foam to expand and move to the atmosphere. An atmospheric vent is in fluid communication with at least one of the grooves.

Abstract: 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 contact arrays. Each contact array has a different pattern of contact area locations. A portion of the contact areas of each contact array are capable of providing identity information for the print cartridge.

Abstract: 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 areas of the first contact array are different from locations of the contact areas of the second contact array. The printing apparatus further includes a carriage that interchangeably receives the first cartridge and the second cartridge. A controller identifies whether the first cartridge or the second cartridge is installed in the carriage.

Abstract: 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 disposed on the vertical wall of the cartridge. The columnar arrays extending along at least one half of the height of a region occupied by the contact array. The columnar arrays of each pair of columnar arrays converge toward each other in a direction toward the lower portion of the cartridge body.

Abstract: 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 a first column and a second column of the ink orifices and along which the printhead traverses during printing, and an air movement system directing a stream of gas to the print zone substantially parallel to the first column and the second column of the ink orifices and offset from and between the first column and the second column of the ink orifices as the ink drops are ejected during printing.

Abstract: Systems, methods, and devices are provided for printhead calibration. A method includes printing a swath. A temperature rise of a printhead is measured during the swath and an operating energy of the printhead is calibrated based on the measured temperature rise while performing a non-test print job.

Abstract: Methods and systems for forming slotted substrates are described. In one exemplary embodiment, a substrate has a thickness defined by a first surface and a generally opposing second surface. The substrate has a fluid-feed slot extending between the first surface and the second surface with the fluid-feed slot being defined, at least in part, by a central portion and one or more capillary channels in fluid flowing relation to the central portion.

Abstract: 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 having a pivoting armature that pushes a compliant diaphragm against a valve seat to close the valve. Preferably, the armature is configured as a “see-saw,” such that as the valve is opened, an opposing end of the see-saw also displaces the diaphragm. In this manner, fluid pressure in a valve chamber is relatively constant, and there are no significant pressures which prevent the valve from opening and closing. The preferred application of the valve is to actively drive printer ink supply, such that ink can be selectively drawn using the valve from a remote ink supply into a local ink reservoir, mounted near a print head.

Abstract: 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 film structure. At another step, material for an orifice layer is deposited into the pits. At another step, a firing chamber is etched into the orifice layer. At another step, a trench is etched into the backside of the wafer in the vicinity of the filled pits. The material filling each pit is not removed and remains in place to define the respective pillars. Two or more pillars are formed within the trench for each inkjet nozzle chamber. Alternatively pillars are formed by depositing material into the underside trench and performing photoimaging processes.

Abstract: A fluid ejection method for selectively depositing fluid on printing media is provided. The method includes providing a carrier configured to receive a fluid ejecting substrate. The fluid ejecting substrate has an orifice layer, first planar surface and a contact surface positioned below the first planar surface. Inserting the fluid ejecting substrate into the carrier and forming an electrical coupling between the contact surface of the fluid ejecting substrate and the carrier are included in the method. The method further includes providing a mold for dispensing an encapsulant on top of the electrical coupling to form a substantially co-planar surface with the fluid ejecting substrate and an upper surface of the carrier.

Abstract: 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 removed by an anisotropic etch. Such etchant works from the top surface and a side edge of the substrate. The single-side fabrication process is distinguished from fabrication processes that work from a bottom of a die to form the feed channel and fill channels and work from a top of the die to form printing elements.

Abstract: In one embodiment, a fluid ejection device comprises a substrate having a fluid slot defined from a first surface through to a second opposite surface; an ejection element formed over the first surface and that ejects fluid therefrom; and a filter having feed holes positioned over the fluid slot near the first surface. Fluid moves from the second surface through the feed holes to the ejection element. In a particular embodiment, the filter is formed of a first material that is surrounded by a second material. In another particular embodiment, the filter is formed from the back side and is formed of the same material as the substrate.

Abstract: 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 having a pivoting armature that pushes a compliant diaphragm against a valve seat to close the valve. Preferably, the armature is configured as a “see-saw,” such that as the valve is opened, an opposing end of the see-saw also displaces the diaphragm. In this manner, fluid pressure in a valve chamber is relatively constant, and there are no significant pressures which prevent the valve from opening and closing. The preferred application of the valve is to actively drive printer ink supply, such that ink can be selectively drawn using the valve from a remote ink supply into a local ink reservoir, mounted near a print head.

Abstract: 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 layers and substrate in the openings are etched to create deep slots beneath the first surface of the substrate. The photoresist is removed. A protection layer is applied over the set of thin-film layers thereby filling the deep slots in the set of thin-film layers and substrate. A feed channel is created on a second surface of the substrate until the protection layer within the deep slots is exposed. The protection layer is then removed.

Abstract: 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 movement system directs an air stream to the print zone substantially parallel to the intended ink drop trajectory as the ink drops are ejected during printing so as to affect air currents acting on the ink drops during printing and prevent print defects caused by the air currents. The air stream, however, does not disrupt the intended trajectory of the ink drops during printing.

Abstract: 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 coupling with the carrier. The fluid ejecting substrate has a generally planar orifice layer and a generally planar contact surface positioned below the orifice layer. The orifice layer extends above the upper surface of the carrier and defines a plurality of orifices therein. An encapsulant at least partially encapsulates the fluid ejecting substrate and the carrier.