摘要:
The present invention provides a compound of the formula: ##STR1## process for their production, pharmaceutical compositions containing them and their pharmaceutical uses, and intermediates useful for their production and processes for the production of such intermediates. The compounds are used as anti-hyperlipoproteinemic agents for example.
摘要:
A non-volatile semiconductor memory device comprises a semiconductor substrate of a first conduction type, an impurity buried layer of a second conduction type formed at the surface of the semiconductor substrate for constituting either one of a drain region or a source region, an epitaxial layer of a second conduction type formed at the surface of said impurity buried layer, an insulatiang partition wall extended vertically from the surface of the epitaxial layer surrounding operation regions in the impurity buried layer for defining the operation regions therein, at least one electron holding portion extended vertically with a predetermined distance from the operation regions and disposed within the insulating partition wall apart from the operation region, the impurity buried layer or the drain region by an insulation film of such a thickness as causing a tunnel effect, control gates disposed within the insulation partition wall disposed on every electron holding portions on the side opposite to the operation regions and extended vertically with a certain gap from the electron maintaining portions, and a control gate disposed within the insulating partition wall on every electron holding portions on the opposite side to the operation region extended vertically and with a certain gap to the electron holding portions, and an impurity region of a second conduction type formed at the surface of the operation region for constituting the other of the drain region or the source region.
摘要:
A semiconductor integrated device (CBi-CMOS) is disclosed wherein both CMOS transistors and a vertical npn and pnp transistor are formed in a single semiconductor substrate and a latch up phenomenon in the CMOS is prevented. A method of manufacturing the CBi-CMOS is also disclosed. In the CBi-CMOS, four elements, that is, an n-MOSFET, a p-MOSFET and npn and pnp vertical transistors are formed in an n-type epitaxial silicon layer formed on a p-type silicon substrate. The n-MOSFET is formed in a p-well which has a p.sup.+ -type buried region. In the element region of the p-MOSFET, an n.sup.+ -type buried region is also formed. In the element regions of the npn and pnp vertical transistors, a first p.sup.+ -type isolation diffusion region is selectively formed. And an n.sup.+ -type buried region is selectively formed both in these element region of the npn and pnp vertical transistors. In the element region of the npn transistor, the vertical npn transistor is formed using the n-type region surrounded by the first p.sup.+ -type isolation diffusion region as a collector. In the element region of the pnp transistor, a p.sup.+ -type buried region is formed on the n.sup.+ -type buried region, and the vertical pnp transistor is formed using the p.sup.+ -type buried region as a collector. In this case, a second p.sup.+ -type isolation diffusion region is formed to isolate an n-type base region of the vertical pnp transistor.
摘要:
A hydrophobic organic solvent containing a compound of the formula ##STR1## is dispersed and emulsified in an aqueous medium containing a sulfinic acid of the formulaR.sub.5 --SO.sub.2 H (I)and serving as an aqueous medium for preparing microcapsules to react the compounds of the formulae (I) and (II) and synthesize a diarylmethane derivative of the formula ##STR2## while encapsulating oily droplets of the resulting hydrophobic organic solvent solution of the diarylmethane derivative. Colorless chromogenic materials can be synthesized and encapsulated at the same time by this process.
摘要:
A process for the preparation of peroxides by condensation reaction of a tertiary organic hydroperoxide with a tertiary alcohol, which is characterized in that zinc chloride is present as a catalyst in an amount of at least 1% by weight based on the tertiary alcohol, is disclosed. This process can be advantageously applied to continuous manufacture of peroxides, and according to this process, peroxides can be obtained in high yields.
摘要:
The method of making impermeable microcapsules comprises the steps of preparing an aqueous dispersion of microcapsules having a capsule wall of a water-insoluble polyamine-epoxy resin and adding to the aqueous dispersion an electrolyte to dehydrate the microcapsules.
摘要:
The black color developing heat-sensitive recording material comprises a base sheet and a color developing layer formed on at least one surface of the base sheet, the color developing layer including colorless or light-colored chromogenic material and acceptor which is reactive with said chromogenic material to develop a black color. At least 60% by weight of the chromogenic material comprises at least two kinds of black color developing fluoran compounds having the eneral formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, X.sub.l and Ym are described hereinafter and the amount of each of said black color developing fluoran compounds is not larger than 90% by weight of the total amount of said black color developing fluoran compounds.
摘要:
An inflatable protector bag of a vehicle safety device for protecting a vehicle occupant during a collision by the vehicle. The protective bag has a collapsed inoperative condition and an expanded operative condition having when unloaded, a generally hexahedral configuration consisting of two rectangular sheet sections, two isosceles triangular sheet sections and two congruent scalene quadrilateral sheet sections. The protector bag is produced from a totally closed hollow rectangular confinement having a pair of flat coextensively overlapping sheet sections such that three triangular pocket portions are formed at three of the vertices of the rectangular confinement and are sealed along the respective bases of the triangular pocket portions.
摘要:
A sintered ferrite magnet comprising a first granular ferrite compound phase containing Ca, La, Fe and Co and having a Curie temperature Tc1 between 415° C. and 430° C., and a second granular ferrite compound phase containing Sr, La, Fe and Co and having a Curie temperature Tc2 between 437° C. and 455° C., the volume ratio of the first ferrite compound phase being 50-90%, and the volume ratio of the second ferrite compound phase being 10-50%, with their total volume ratio being 95% or more.
摘要:
A storage apparatus 10 is disclosed, that comprises a wiring substrate 11 having a first surface and a second surface, a flat type external connection terminal 12a disposed on the first surface of the wiring substrate 11, a semiconductor device 14 disposed on the second surface of the wiring substrate 11 and having a connection terminal 14a connected to the flat type external connection terminal 12a, a molding resin 15 for coating the semiconductor device 14 on the second surface of the wiring substrate 11, a card type supporting frame 10a having a concave portion or a hole portion fitting the wiring substrate 11, the semiconductor device 14, and the molding resin 15 in such a manner that the flat type external connection terminal 12a is exposed to the first surface of the wiring substrate 11, and adhesive resin a adhering integrally the flat type external connection terminal 12a, the wiring substrate 11, the semiconductor device 14, the molding resin 15, and the card type supporting frame 10a. In addition, the storage apparatus 10 can be combined with a card type supporting means 21 that supports detachably with the flat type external connection terminal 12a exposed to one of the surfaces so as to be used as a card type storage apparatus 20 having bigger size.