摘要:
An ink-jet head includes a holder having first reference surfaces arrayed at a predetermined pitch in a main scanning direction. A plurality of segment chips is held on the holder. Each of the plurality of segment chips has an ink chamber plate and nozzles, each of the ink chamber plates having a flat surface on which grooves forming ink chambers are arrayed in a row perpendicular to the main scanning direction. Each of the ink chamber plates has a second reference surface extending from and coplanar with the flat surface. The second reference surfaces of the ink chamber plates of the plurality of segment chips are in contact with the first reference surfaces of the holder so that the nozzles of the respective segment chips are positioned on the holder at the pitch in the main scanning direction, and the plurality of segment chips are fixed to the holder.
摘要:
A piezoelectric fluid pump includes a stationary pump base and a plurality of piezoelectric elements arranged in parallel on the stationary pump base, each of the piezoelectric elements having, in a polarizing direction thereof or in a direction perpendicular to the polarizing direction, a first end fixed to the stationary pump base and a free, second end. The free, second ends of respective pairs of adjacent the piezoelectric elements are connected to each other, for respective units of the fluid pump. Between the pair of piezoelectric elements and between the stationary pump base and the connecting means, pressure chambers are defined. There are gaps are between walls of the piezoelectric elements and walls of piezoelectric elements of adjacent units.
摘要:
The present invention provides a thermosetting resin composition comprising(a) a prepolymer of a poly-p-hydroxystyrene derivative represented by the general formula ##STR1## wherein A is a halogen group, R.sub.1 is an alkenyl or alkenoyl group of 2 to 4 carbon atoms, 4 carbon atoms, m denotes a number of 1 to 4 and n denotes a number of 1 to 100,(b) an epoxy-modified polybutadiene, and(c) an aromatic maleimide compound, and a prepreg and a laminated sheet which use said resin composition.
摘要:
A plaster, which can be used in the prevention of attacks of bronchial asthma and in the treatment of bronchitis, comprises an adhesive base composition comprising a macromolecular substance and a sequestering agent and containing salbutamol, and a support for supporting the adhesive base composition spread thereon, and a method of producing the plaster are provided.
摘要:
The present invention provides a thermosetting resin composition comprising(a) a prepolymer of a poly(p-hydroxystyrene) derivative represented by the general formula ##STR1## wherein A is a halogen group, R.sub.1 is an alkenyl or alkenoyl group of 2 to 4 carbon atoms, m denotes a number of 1 to 4 and n denotes a number of 1 to 100,(b) an epoxy-modified polybutadiene, and(c) an aromatic maleimide compound, and a prepreg and a laminated sheet which use said resin composition.
摘要:
The thermosetting resin composition of the present invention is prepared by mixing an aromatic cyanamide compound with a cyclic ester compound and/or a cyclic amide compound. Although a solventless type composition is preferable, the present invention is not limited thereto. The cured product of the present invention can be prepared by heating and curing said thermosetting resin composition. The obtained cured product of the present invention usually contains melamine rings, isomelamine rings and linear polyester and/or a linear polyamide units.
摘要:
A polymer which has excellent heat resistance and mechanical properties which is useful as a molding material, contains the structural units having the following formulae [I] and [II]: ##STR1## wherein A and B each represents an at least divalent organic group having at least one aromatic ring such as a diphenyl ring; and m and n each represents a number of at least 1. The polymer is used in the form of a solution or varnish as an impregnating, laminating, bonding or film-forming coating or prepreg-forming varnish. A resin composition for forming the polymer contains an aromatic cyanamide compound and an aromatic amine which are reacted to form a prepolymer which, upon heating, is converted into a cured polymer having the structural units of formulae [I] and [II].
摘要:
[Problem] To provide a novel fluorescent nanoparticle imaging probe having a switching function (a function to quench a fluorescent dye in a blood component and emit fluorescence in a tumor or an inflamed site to be imaged).[Solution] A fluorescent nanoparticle probe comprising: a molecular assembly composed of an amphiphilic block polymer having a hydrophilic block chain and a hydrophobic block chain; and a fluorescent dye encapsulated in the assembly, wherein (a) the hydrophilic block chain comprises, as an essential hydrophilic structural unit, a unit selected from a sarcosine unit and an alkylene oxide unit, (b) the hydrophobic block chain comprises, as an essential hydrophobic structural unit, a unit selected from the group consisting of an amino acid unit and a hydroxylic acid unit, and (c) the fluorescent dye is a polylactic acid-bound cyanine compound comprising: a fluorescent group represented by the formula (I): and a polylactic acid group having 5 to 50 lactic acid units, and two or more molecules of the fluorescent dye are encapsulated in the single molecular assembly.
摘要:
A circuit device connected between a neighboring pair of terminals in a semiconductor integrated circuit is protected from electrostatic damage due to a surge voltage when the surge voltage is applied between the neighboring pair of terminals. The semiconductor integrated circuit is formed to include terminals P0-P14, MOS transistors MN0-MN15 in diode connection, protection diode circuits HD0-HD14, MOS transistors T1-T14 for discharging electricity from batteries, a battery voltage detection control circuit and a clamp circuit for overvoltage protection. Each of the MOS transistors T1-T14 for discharging electricity from the batteries is connected between each neighboring pair of the terminals P0-P14 through wirings. Each of the MOS transistors MN1-MN14 in diode connection is connected between each neighboring pair of the terminals.