摘要:
An ink cartridge for an ink jet recording device, includes: a container having an ink supply port; at least two ink chambers partitioned in the container, one being located substantially in an upper section and the other being located substantially in a lower section; an ink suction passage connecting a bottom region of the lower section ink chamber to a bottom region of the upper section ink chamber; and a negative pressure generating mechanism provided to a flow passage connecting the upper section ink chamber to the ink supply port.
摘要:
In an ink cartridge, a negative pressure generating mechanism is disposed between an ink storage region and an ink supply port, and has a wall surface having two through-holes for ink flow, and a valve member contacted with and separated from the through-hole by receiving a pressure in an ink supply port side. Ink flowing via the through-hole is supplied via the through-hole to the ink supply port.
摘要:
There is disclosed a hexagonal Group III-V nitride layer exhibiting high quality crystallinity capable of improving the properties of a semiconductor device such as a light emitting element. This nitride layer is a Group III-V nitride layer belonging to hexagonal crystal formed by growth on a substrate having a different lattice constant, which has a growth-plane orientation of {1-100} and in which a full width at half maximum b1 of angle dependence of X-ray diffraction intensity in a {1-210} plane perpendicular to the growth-plane upon X-ray incident angle from a direction parallel to the growth-plane satisfies the condition of 0.01°≦b1≦0.5°, or the full width at half maximum b2 of angle dependence of X-ray diffraction intensity in a {0001} plane upon X-ray incident angle from a direction parallel to the growth-plane satisfies the condition of 0.01°≦b2≦0.5°.
摘要:
Disclosed is a process for producing an oxazoline derivative from a non-protected sugar in a simple manner. Also disclosed is a process for producing a glycoside by utilizing the product of the aforementioned process. A sugar oxazoline derivative is synthesized in one step in an aqueous solution from a sugar having a free hemiacetalic hydroxy group and an amido group by using a haloformamidinium derivative as a dehydrating agent. A glycoside compound is produced by using the oxazoline derivative as a sugar donor and also using a sugar dehydrogenase. The method can be applied to the production of a compound having a long sugar chain, and is therefore useful for the production of a physiologically active oligosaccharide, a carrier for a drug delivery system, a surfactant, a carbohydrate-based drug, a glycopeptide, a glycoprotein, a carbohydrate polymer or the like.
摘要:
A liquid ejection apparatus includes liquid cartridges, each of which includes a liquid container and a pressure chamber, the liquid container having a flexible portion and storing liquid therein, and the pressure chamber applying pressure to the flexible portion of the liquid container; a liquid ejection head, which ejects the liquid; liquid flow paths, which communicate the liquid containers with the liquid ejection head; and an air supply member, which supplies pressurized air to the pressure chambers for compressing the flexible portions so as to supply the liquid from the liquid containers to the liquid flow paths. The air supply member includes: a distribution member, which has an air intake portion for introducing the pressurized air, and air outlet portions for distributing the pressurized air to the liquid cartridges, and branch flow paths, which respectively communicate the air outlet portions with the pressure chambers of the liquid cartridges.
摘要:
A guiding device guides, in a main body of a liquid ejection apparatus, a flexible passage forming member having a passage therein in a predetermined routing direction while curving the passage forming member. The guiding device includes a holding member. The holding member is engaged with a curved section of the passage forming member, and holds the curved section in an undeformable manner in the apparatus main body. The holding member guides the passage forming member in the routing direction. Thus, the guiding device is capable of efficiently routing passage forming members while bending the members in a body of a liquid ejection apparatus.
摘要:
A semiconductor storage device includes an arithmetic operation unit configured to perform an arithmetic operation of generating a different error detecting code depending on the information of a memory address, using the data and the information of the memory address in a memory cell into which the data is written, and a storage unit configured to store the data and the error detecting code in the memory cell.
摘要:
A connection part is attached to an end of a liquid delivery tube, the connection part being provided with a flow path for changing the flowing direction of a liquid. A method for attaching the connection part to the liquid delivery tube comprises the steps of: preparing a pin having a leading end portion of substantially the same section as that of the flow path of the liquid delivery tube and an arcuate portion which curves in an arc from the leading end portion so as to have a substantially constant section; inserting the leading end portion of the pin into the flow path from at least one end of the liquid delivery tube; placing dies so as to enclose at least one end of the liquid delivery tube; forming the connection part by outsert molding from resin which fills the dies in which the liquid delivery tube and the pin are placed; and extracting the pin from the liquid delivery tube in a direction along the arcuate shape of the pin after removal of the dies from the liquid delivery tube and the connection part.
摘要:
The apparatus includes a portable liquid ejecting unit for independently performing by itself a liquid ejection operation to an object, and a stationary unit to be equipped with the liquid ejecting unit so that the stationary unit is separably united with the same. The liquid ejecting unit has a liquid ejecting head for ejecting a liquid toward the object and a liquid container including a storage space for storing a liquid to be fed to the liquid ejecting head. The stationary unit has a liquid tank for storing a liquid to be fed to the liquid ejecting head. The apparatus further has liquid tank connection member for enabling interconnection between the liquid tank and the liquid ejecting head when the liquid ejecting unit is united with the stationary unit. The invention provides a liquid ejecting apparatus which can meet two needs for executing a large amount of printing and transporting when necessary.
摘要:
A superior cement dispersant and a concrete composition containing the cement dispersant, the cement dispersant being a water-soluble amphoteric copolymer which contains an alkylene oxide adduct of a polyamide polyamine having an unsaturated group and at least two types of polyalkylene glycol ester. When the cement dispersant is compounded with a concrete composition, the dispersion performance thereof increases with time, and the concrete viscosity is effectively decreased. The cement dispersant composition contains a water-soluble amphoteric copolymer or the neutralized salt thereof as an essential component, which is obtained by copolymerizing an alkylene oxide adduct of a polyamide polyamine having an unsaturated group, (meta)acrylic acid or an alkali metal, ammonium, or alkanolamine salt thereof, an ester of an alkylene glycol and methacrylic acid, and an ester of an alkylene glycol and acrylic acid. In addition, the concrete composition containing the above cement dispersant is also disclosed.