摘要:
A method of manufacture of a surface acoustic wave device which includes a step of applying a photosensitive film resist on a substrate and forming a photosensitive film resist layer over at least a portion of a surface of the substrate; a step of forming acoustic absorbers only at the two sides orthogonal to the direction of the surface acoustic wave transmission; a step of placing in a package a surface acoustic wave element obtained by cutting and dividing the substrate and electrically connecting a connection electrode of the surface acoustic wave element with an external terminal of the package; and a step of sealing an opening of the package with a lid, wherein the main surface of the acoustic absorbers is formed parallel to the surface of the substrate.
摘要:
The purpose of the invention is to provide a disk driver which makes it easy for users to set the settings. In a device driver which operates in the computer and has a function where each item of the device is set, when the arrangement information stored in the memory corresponding to a user is read in, the screen shows a display in accordance with it. In the arrangement settings, the user can freely arrange each of the setting items on the screen. Then the arrangement information is maintained in the computer together with the user information.
摘要:
An ultrasonic imaging apparatus comprises an ultrasonic transducer for emitting an ultrasonic beam onto an interest region of a living body containing a blood flow and outputting an echo signal, a correlation circuit for determining a correlation of the signals obtained from the ultrasonic transducer and a velocity calculation circuit for calculating the velocity of the blood flow from the correlation data obtained by the correlation circuit. A zero shift process circuit zero-shifts the velocity data obtained from the velocity calculation circuit and compresses the zero-shifted velocity data in correspondance with an amount of zero shift. The zero-shifted flow velocity data is displayed within a possible display range.
摘要:
A composition for use as a self-locking agent is provided which comprises an aqueous dispersion of the following ingredients dissolved and dispersed in water: (a) a polyamide powder insoluble or slightly soluble in water, (b) an isocyanate compound, (c) a surfactant and (d) a water-soluble polyamide. The composition permits a polyamide resin layer of a smooth surface to be formed on a screw surface of a to-be-coated member. With use of the composition, it is possible to prevent slippage and sagging of the resin layer coated on the screw surface and improve the precision in resin coating processing.
摘要:
An electronic component, in which a chip can be mounted on a certain predetermined place of the package at a high accuracy level, which package having a stepped level-difference in the inner wall of a cavity. The package is provided with a stepped level-difference in the inner wall surface, and an internal contact electrode formed on the upper surface of the stepped level-difference. At the bottom of the package is a shield electrode, on which a chip is mounted via an adhesion layer. The chip and the internal contact electrode are electrically connected by an interconnection wire. Location aligning for the chip and the interconnection wire, at least either one of these, is conducted by making use of a region, which is non-electrode portion, provided on the inner bottom surface of the package.
摘要:
An endoscope including a scope for observing an object, in which at least one of sucking, gas feeding and liquid feeding operations is conducted at the scope, and a time elapsed after a start of the operation is detected by a time detector, and in which the time detected by the time detector is compared with a predetermined reference value, and then the operation is canceled by a canceling device when the time detected by the detected means is at least equal to the predetermined reference value.
摘要:
An electronic endoscopic system comprises an endoscope having a solid-state element assembled to an end thereof, a memory for storing color correction data with respect to a reference color of sections to be obtained by dividing a chromaticity diagram plotted according to the color reproductivity of the solid-state imaging element, and a device for selectively addressing the color correction data stored in the memory.
摘要:
Provided are a thiol-reactive polyoxyalkylene-modified lipid which can be used to chemically modify bioactive substances and which can be used for drug delivery systems such as liposomes and a method for producing the same. The polyoxyalkylene-modified lipid is represented by the following formula (1): (wherein, R1 and R2 are hydrocarbon groups which are the same as or different from each other and which contain 4 to 24 carbon atoms, R3 is a divalent hydrocarbon group containing 1 to 6 carbon atoms, OA is oxyalkylene groups containing 2 to 4 carbon atoms, n is the average addition mole number of the oxyalkylene groups and is 5 to 1,000, and Z is a group containing either maleimide or iodoacetamide.)
摘要:
A method for producing a polyoxyalkylene derivative represented by the following general formula (1): Z(OA)n-OH]m (1) wherein Z is a residue of glycerin or diglycerin, OA is an oxyalkylene group having 2 to 4 carbon atoms, n is an average number of moles of the oxyalkylene group added and is 80 to 800, and m is 3 to 4, the method comprising steps (A), (B), (C), (D), (E), and (F) defined in the present description.
摘要:
A surface acoustic wave (SAW) device having improved moisture resistance is provided. The device includes a piezoelectric substrate, an interdigital transducer (IDT) electrode on a first surface of the piezoelectric substrate, and a resin coating for covering the IDT electrode. After a piece of resin material of the resin coating is dipped in an amount of pure water as solvent having a mass as 10 times great as the piece of resin material at 120° C. under 2 atom pressure for twenty hours, a concentration of chlorine ion in the solvent is not higher than 50 ppm.