Abstract: Disclosed is a thienopyridine derivative represented by formula (I): ##STR1## wherein one of A and B represents --S-- and the other represents --CH.dbd.; R represents hydrogen or lower alkyl, and Z represents pyridyl; or a pharmaceutically acceptable salt thereof.The thienopyridine derivative is useful as an immunoregulator and for the prevention and treatment of osteoporosis.

Abstract: Disclosed is a pyrazolonaphthyridine compound represented by the formula: ##STR1## wherein R.sup.1 is represents hydrogen, lower alkyl, aralkyl, or substituted or unsubstituted aryl, R.sup.2 represents hydrogen, lower alkyl, thienyl, substituted or unsubstituted aryl, hydroxy or amino, or a pharmaceutically acceptable salt thereof.The compound possesses antiinflammatory effect, immunosuppressive effect, broncho-dilatory effect and hair growth-stimulative effect.

Abstract: Disclosed are naphthyridine derivatives represented by formula (I) ##STR1## wherein: X represents hydrogen; lower alkyl; aralkyl; substituted or unsubstituted aryl; substituted or unsubstituted aromatic heterocyclic group; --NR.sup.1 R.sup.2 wherein R.sup.1 and R.sup.2 independently represent hydrogen or lower alkyl; ##STR2## wherein W represents N or CH, Z represents a single bond, oxygen or NR.sup.3 (wherein R.sup.3 represents hydrogen, lower alkyl or benzyl) and n1 and n2 represent an integer of 1 to 3; or substituted or unsubstituted thiazolinyl; andY is a single bond or alkylene and pharmaceutically acceptable salts thereof. The compounds show potent anti-inflammatory activity and are expected to be useful in treating rheumarthritis.

Abstract: Disclosed is a hexitol derivative represented by the formula (I): ##STR1## wherein Q represents a formula selected from the group consisting of ##STR2## wherein a represents NH, O or S;each of b, c and d independently represents CH or N;each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represents hydrogen, lower alkyl, trifluoromethyl, aryl, lower alkanoyloxy, amino, lower alkylamino, lower alkanoylamino, lower alkanoyl, aroyl, halogen, nitro, (CH.sub.2).sub.m OR.sup. 7, (CH.sub.2).sub.m SR.sup.7, (CH.sub.2).sub.m CO.sub.2 R.sup.7 where R.sup.7 represents hydrogen or lower alkyl and m represents an integer of 0 to 3;each of R.sup.5 and R.sup.6 independently represents hydrogen or lower alkyl;U represents >N-- or ##STR3## W represents a single bond, --O-- or --S--; X represents ##STR4## wherein each of Y.sup.1 and Y.sup.2 independently represents hydrogen, lower alkyl, hydroxyl, lower alkanoyloxy, nitrile or phenyl; or Y.sup.1 and Y.sup.2 are combined together to form oxygen;each of Y.sup.3 and Y.

Abstract: Novel imidazoquinolone derivative represented by formula (I); ##STR1## wherein R.sup.1 represents lower alkyl or --(CH.sub.2).sub.m CO--R.sup.3 where R.sup.3 represents hydrogen, lower alkyl, hydroxy or lower alkoxy; and m is an integer of 1 to 3; R.sup.2 represents lower alkyl; or a pharmaceutically acceptable salt thereof.

Abstract: Novel imidazoquinolone derivative represented by the formula (I); ##STR1## wherein R.sup.1 represents hydrogen, alkyl, cycloalkyl, alkenyl aralkyl, aralkenyl or substituted or unsubstituted aryl; X represents nitrogen or ##STR2## where R.sup.2 is hydrogen, hydroxyl, alkyl, cycloalkyl, alkenyl, aralkyl, aralkenyl, substituted or unsubstituted aryl, thiol, halogen, substituted or unsubstituted aromatic heterocyclic group, or --(CH.sub.2).sub.m CO.sub.2 R.sup.6 where R.sup.6 is hydrogen or lower alkyl and m is an integer of 0 to 3; Y represents oxygen or sulfur; R.sup.3 represents alkyl, cycloalkyl, alkoxyalkly, alkenyl, aralkyl, aralkenyl, --(CH.sub.2).sub.n -- Het where Het is substituted or unsubstituted aromatic heterocyclic group and n is an integer of 1 to 3 or --(CH.sub.2).sub.n CO.sub.2 R.sup.6a where n has the same meaning as defined above and R.sup.6a has the same meaning as defined as to R.sup.6 ; each of R.sup.4 and R.sup.

Abstract: A suspended membrane structure, comprising:a plurality of suspending members arranged substantially parallel or substantially radial fashion;a membrane downward hung by a plurality of wire members (or hanging members) from a plurality of points on each suspending member; anda plurality of bracing cables each provided on the membrane in the same direction with that of said suspending member at each middle position between said suspending members, and capable of imparting a tensile force to said membrane.

Abstract: In a disclosed displacement detecting apparatus, a nut member retains a plurality of balls to circulate therein while in engagement with a helical groove of a screw shaft. The nut member is unrotatable and linearly movable, and the screw shaft is rotatable and linearly immovable. A rotation detector and a brake are attached to the screw shaft. The nut member may act as a piston of a cylinder in which the nut member is mounted, or may be connected to a separately provided piston of the cylinder.

Abstract: A piston member is mounted in a cylinder body to be axially movable and unrotatable relative thereto. A ball nut retaining balls is fixed to the piston member, and a screw shaft having a helical groove in engagement with the balls is mounted to be rotatable and axially immovable relative to the cylinder body. The screw shaft makes many rotations when the piston under fluid pressure slightly advances axially inside the cylinder.

Abstract: A magnetic cylinder has at least one magnet unit on the movable side and at least one magnet unit on the stationary side. Each unit on any such side consists of a plurality of magnets as are set to result in the positive and negative magnetic poles to alternate equiangularly in the peripheral direction of the cylinder. A piston rod and a maneuvering mechanism are operatively connected to the at least one magnet unit on the movable side in such a manner that the at least one magnet unit on the movable side may be rotationally rocked by means of the maneuvering mechanism so that by the thusly shifted attracting or repelling action between both the said magnet units the piston rod is caused to reciprocatingly move to and for in the axial direction of the cylinder.

Abstract: In a data communication system in which data communication is carried out between two or more data processing units and at least one device to be controlled thereby, each coupled via data station to a common data transmission path connected in a loop fashion, a conflict preventing circuit is provided between said device to be controlled and the associated data station, which conflict preventing circuit comprises a flip-flop to be set in response to its own device identifying data received from a particular communicating unit for keeping its own device enabled, an address register for storing a unit identifying data of said communicating unit, and an AND gate responsive to the device identifying data input and a busy signal from its own device for latching said flip-flop and said address register while the device is busy or communicating with said particular unit, thereby preventing said flip-flop and said address register from being affected from a data transmitted from a different unit while the device is co