摘要:
A beam having a base material of silicon monocrystal and at least one projection which is integrally formed so as to be supported at least at one end thereof and which has two surfaces having an orientation plane (111), includes a bottom surface in a plane which is common with a plane of the base material; a groove penetrating from the bottom surface to a top of the projection; and a protecting member having a resistance property against a crystal anisotropic etching liquid and covering an inner wall of the groove.
摘要:
A catalytic reactor confining a catalyst in a mid-portion of a tubular housing made up of a pair of shells flanged sideways and welded together. The cross-sectional area of the housing becomes largest in the mid-portion, and the assembled shells define therein a fore-portion diverging towards the mid-portion and an aft-portion converging from the mid-portion. Side flanges of each shell are formed substantially over the entire length of the shell, and the width of the flanges is enlarged in both the fore- and aft-portions. The housing has two coupling flanges welded respectively at the fore- and aft-ends of the housing both to the outer periphery of the shells and to the ends of the side flanges. When the reactor confines therein a porous monolithic core shaped similarly to the mid-portion of the housing and treated with a catalyst, a buffer layer of wire mesh covers the periphery of the core so as to be tightly interposed between the core and the inner surfaces of the assembled shells, and marginal regions of the buffer layer are made to protrude beyond the end faces of the core so as to be forcibly folded inwards during assemblage of the reactor by two peripheral shoulders formed on the inside of the shells at fore- and aft-boundaries of the mid-portion.
摘要:
A beam having a base material of silicon monocrystal and at least one projection which is integrally formed so as to be supported at least at one end thereof and which has two surfaces having an orientation plane (111), includes a bottom surface in a plane which is common with a plane of the base material; a groove penetrating from the bottom surface to a top of the projection; and a protecting member having a resistance property against a crystal anisotropic etching liquid and covering an inner wall of the groove.
摘要:
A loss in the rigidity of a substrate for a liquid discharge head having nozzles at a high density can be suppressed. A liquid discharge head includes plural pressure generating chambers respectively provided with pressure generating elements, plural nozzle apertures respectively communicating with the plural pressure generating chambers and adapted to discharge a liquid, and a reservoir with which the plural pressure generating chambers commonly communicate respectively through communicating parts. The pressure generating chambers and the reservoir respectively have recessed portions formed respectively on one and the other of two principal planes of the same substrate, and the reservoir contains a portion shallower than a portion within the reservoir that communicates with the pressure generating chambers.
摘要:
A beam having a base material of silicon monocrystal and at least one projection which is integrally formed so as to be supported at least at one end thereof and which has two surfaces having an orientation plane (111), includes a bottom surface in a plane which is common with a plane of the base material; a groove penetrating from the bottom surface to a top of the projection; and a protecting member having a resistance property against a crystal anisotropic etching liquid and covering an inner wall of the groove.
摘要:
A reed valve device having two reeds capable of selectively closing and opening the corresponding openings formed in the device is snugly fitted in a casing through an elastomeric sealing member without using any other connecting means. The casing communicates with an exhaust conduit system of an internal combustion engine so that the reed valve device functions to intermittently admit air into the exhaust conduit system by the pulsations of the exhaust gas under pressure passing through the exhaust conduit system.
摘要:
An oscillator device includes an oscillator, a resilient support member configured to support the oscillator for oscillatory motion about an oscillation central axis, a magnetic member provided on the oscillator, and a magnetic-field generating member disposed opposed to the oscillator, wherein the oscillator has a through-hole extending through the oscillator from its top surface to its bottom surface, and wherein the magnetic member is provided in the through-hole.
摘要:
A method for fabricating a mold for a microlens having a desired radius (R) of curvature by electroplating. In this method, a minimum radius (Rmin) of curvature is utilized to achieve the desired curvature radius.
摘要:
An oscillator device includes an oscillator, a resilient support member configured to support the oscillator for oscillatory motion about an oscillation central axis, a magnetic member provided on the oscillator, and a magnetic-field generating member disposed opposed to the oscillator, wherein the oscillator has a through-hole extending through the oscillator from its top surface to its bottom surface, and wherein the magnetic member is provided in the through-hole.
摘要:
In a method of fabricating an array of microstructures, a substrate with an electrically-conductive portion is provided, an insulating mask layer is formed on the electrically-conductive portion of the substrate, a plurality of openings are formed in the insulating mask layer to expose the electrically-conductive portion, and a first plated or electrodeposited layer is deposited in the openings and on the insulating mask layer by electroplating or electrodeposition. A second plated layer is further formed on the first plated or electrodeposited layer and on the electrically-conductive portion by electroless plating to reduce a size distribution of microstructures over the array.