摘要:
Novel benzimidazole derivatives of the formula: ##STR1## wherein R.sup.1 is a lower alkyl group, a lower alkenyl group or a lower alkynyl group, R.sup.2 is hydrogen atom, a lower alkyl group or a lower hydroxyalkyl group, and n is 2 or 3, or a pharmaceutically acceptable acid addition salt thereof, which have potent antihistaminic activity with less toxicity and hence are useful as an antihistaminics, and a process for the preparation of the compounds, and a pharmaceutical composition useful as antihistaminics containing the compound as an essential active ingredient.
摘要:
Novel benzimidazole derivatives of the formula: ##STR1## wherein R.sup.1 is an alkyl group having 1 to 3 carbon atoms, allyl group, propargyl group, or phenyl group; R.sup.2 is hydrogen atom or an alkyl group having 1 to 3 carbon atoms; and n is 2 or 3, or pharmaceutically acceptable acid addition salts thereof, which have excellent antihistaminic activities and are useful as antiallergics for various allergic diseases, and a process for the preparation thereof, and an antihistaminic composition containing the compound as an active ingredient.
摘要:
A chip including a Hall element for detecting a magnetic force is p repared. On the chip is formed an unhardened magnetic resin layer, which is formed of a mixture of soft magnetic powder an dsilicone rubber. The unhardened magnetic resin layer is applied with a magnetic field and is stretched in a direction perpendicular to one face of the chip, so that its top portion is formed in a substantially conical shape and its bottom portion is formed in a substantially rectangular block, the ratio of the length Wa of its base to its height Wb, Wb/Wa, being equal to or greater than 1. The magnetic resin layer is then hardened. As a result, a magnetic force detecting semiconductor device is provided, which has a magnetic resin layer with a high magnetic force convergence that has its top portion formed in a conical shape and its bottom portion formed in a rectangular block, the ratio of the length of its base to its height being equal to and greater than 1.
摘要:
Disclosed is a semiconductor device with its gate electrode and source/drain extraction electrodes being made of the same material on a GaAs substrate, and with its source/drain heavily doped regions, which are formed by doping Se in a lightly doped semiconductor layer on the GaAs substrate, self-aligned with both gate electrode and source/drain extraction electrodes.
摘要:
A silicon-germanium non-formation region not formed with a silicon germanium layer and a silicon-germanium formation region formed with a silicon germanium layer are provided in a silicon chip, an internal circuit and an input/output buffer are arranged in the silicon-germanium formation region, and a pad electrode and an electrostatic protection element are arranged in the silicon-germanium non-formation region.
摘要:
According to one embodiment, when a row address of a port A matches a row address of a port B, a memory cell is accessed only from the port A by controlling a word line potential of the port A based on a third clock, and data is exchanged between a bit line of the port A and the port A based on a first clock and data is exchanged between the bit line of the port A and the port B based on a second clock.
摘要:
According to the present invention, a turbine shell is manufactured by a method which includes the steps of preparing a planar blank, simultaneously forming a plurality of blade fixture slits 32A, 32B and 32C in the blank 40, and deforming the blank 40 into a curved concave shape by effecting drawing work.
摘要:
A semiconductor device for detecting or emitting a magnetic line of force or light is so provided that the major surface of its built-in semiconductor chip has a predetermined inclination angle relative to a mount surface of a mount substrate. An active layer of element for detecting a magnetic line of force or light or an element for emitting a magnetic line of force or light is formed on the major surface of the semiconductor chip. It is, therefore, possible to achieve a smaller mount thickness as defined relative to a mount surface and to detect a magnetic line of force or light coming in a direction parallel to the mount surface or to emit a magnetic line of force or light in a direction vertical to the mount surface.
摘要:
According to one embodiment, when a row address of a port A matches a row address of a port B, a memory cell is accessed only from the port A by controlling a word line potential of the port A based on a third clock, and data is exchanged between a bit line of the port A and the port A based on a first clock and data is exchanged between the bit line of the port A and the port B based on a second clock.
摘要:
A silicon-germanium non-formation region not formed with a silicon germanium layer and a silicon-germanium formation region formed with a silicon germanium layer are provided in a silicon chip, an internal circuit and an input/output buffer are arranged in the silicon-germanium formation region, and a pad electrode and an electrostatic protection element are arranged in the silicon-germanium non-formation region.