Abstract: In order to accurately detect an engine or prime mover entering an idling state the position and rate of movement of a control element (such as an engine throttle valve) which varies with the load or torque produced is monitored. If the rate of movement is found to be sequentially within two ranges, the second of which is narrower than the first, and the control element is close to its minimum torque indicative position, a control signal is issued to release a transmission lock-up clutch or the like device which is associated with the engine.

Abstract: Novel 3(2H)-pyridazinone derivatives having the general formula (I): ##STR1## wherein, R denotes a straight or branched C.sub.1 to C.sub.6 alkyl; A denotes a straight or branched C.sub.1 to C.sub.6 alkyl or a halogen; X denotes oxygen or sulfur atom; Q denotes a group; ##STR2## when A is a straight or branched C.sub.1 to C.sub.6 alkyl, and Q denotes a group: ##STR3## when A is a halogen atom; R.sup.1 and R.sup.2 denote each independently hydrogen, a lower alkyl, a lower haloalkyl, or 4-tert-butylphenyl; B denotes --CR.sup.6 .dbd.CR.sup.7 --, --CR.sup.6 R.sup.7 O--, or ##STR4## (wherein, R.sup.6 and R.sup.7 denote various specific organic radicals. A process for preparation of said derivatives is also provided. These derivatives are useful as an active ingredient of insecticidal, acaricidal, nematicidal and/or fungicidal compositions for agricultural and horticultural uses as well as of expellent compositions for ticks parasitic on animals.

Abstract: A 3(2H)-pyridazinone derivative of the general formula (I): ##STR1## wherein R is a straight or branched C.sub.2 -C.sub.6 alkyl,A is a straight or branched C.sub.1 -C.sub.6 alkyl or a halogen atom,X is --O-- or --S--,R.sup.1 and R.sup.2 are each independently hydrogen atom or C.sub.1 -C.sub.3 alkyl,B is --CH.dbd.CH--, --N.dbd.CH--, --N.dbd.N--, --S--, --O-- or ##STR2## wherein R.sup.3 is hydrogen or C.sub.1 -C.sub.3 alkyl, Y is a halogen atom, a straight or branched C.sub.1 -C.sub.6 alkyl, a C.sub.3 -C.sub.6 cycloalkyl or cycloalkoxy, and other substituents,n is 0 or an integer of 1 to 3, and when n is 2 or 3, Y may be same or different, with the proviso that when B is --CH.dbd.CH--, n is an integer of 1 to 3 and at least one of Y is --O--W, as this term is defined in the specification.A process for the preparation of said derivatives is also provided.

Abstract: An electronic device having a first type of external leads with a mechanical strength enhanced therefor and a second type of external leads smaller in a mechanical strength as compared with that of the first type of external leads. The mechanical strength of the first type of external leads is enhanced by making a width or a diameter of the first type of external leads larger than the width or the diameter of the second type of external leads, and the first type of external leads are disposed near edge portions or corner portions of the electronic device having a rectangular sealing means. Then the second type of external leads are disposed between the first type of external leads.

Abstract: An oral composition which comprises containing therein synthetic amorphous zirconosilicate containing 0.1 to 10 wt % of zirconium in terms of ZrO.sub.2 based on SiO.sub.2 and a fluoride compound. The fluoride compound is retained stable for a long period of time.

Abstract: A stable toothpaste composition which includes as an abrasive amorphous silica or silicate having a specific surface area of 5 to 100 m.sup.2 /g as measured by BET method with nitrogen adsorption and a specific surface area of 100 to 400 m.sup.2 /g as measured by BET method with water vapor adsorption.

Abstract: A dentifrice composition having an excellent storage-stability which comprises a zirconium-bonded synthetic amorphous silicate (zirconosilicate) with a zirconium content of 0.1 to 10% by weight as ZrO.sub.2 based on SiO.sub.2 and a dentifrice vehicle containing water, humectant and flavor, and by adjusting the refractive index of the vehicle substantially identical with that of the silicate, the dentifrice composition can be made transparent.

Abstract: Pyrazoline derivatives useful as insecticides having the formula ##STR1## wherein X represents a hydrogen atom or a halogen atom; Y represents a halogen atom, a trifluoromethyl group or --A--R'; R represents a C.sub.1-10 alkyl group, a lower alkenyl group or a lower alkynyl group; and A represents an oxygen atom, a sulfur atom, a sulfinyl group or a sulfonyl group and R' represents a halogen-substituted lower alkyl group.

Abstract: Novel phenoxypicolinic aldehydes, namely, 6-(4'-difluoromethoxyphenoxy)picolinic aldehyde and 5-fluoro-6-phenoxypicolinic aldehyde.

Abstract: Pyrazoline derivatives useful as insecticides having the formula ##STR1## wherein R.sup.1 represents hydrogen atom, a lower alkyl group, (CH.sub.2).sub.n CN group, (CH.sub.2).sub.n OR group, phenyl group or a halogen-substituted phenyl group; R.sup.2 represents hydrogen atom or methyl group; Y represents hydrogen atom or chlorine atom; X represents oxygen atom, sulfur atom, sulfinyl or sulfonyl group; R.sup.3 represents a halogen-substituted lower alkyl group; and n is integer 1 to 3 and R represents a lower alkyl group.

Abstract: Pyrazoline derivatives having the formula ##STR1## wherein R.sup.1 represents hydrogen atom, a lower alkyl group, phenyl group or a halogen-substituted phenyl group; R.sup.2 represents hydrogen atom or phenyl group which can have halogen substituents; X represents oxygen or sulfur atom; Y and Z respectively represent hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, nitro-group, trifluoromethyl group, a lower alkylthio group, an acyl group, nitrile group or a lower alkyl sulfonyl group.

Abstract: A process for producing 6-phenoxypicolinic aldehydes, which comprises reacting a 2-halogeno-6-phenoxypyridine represented by the general formula I: ##STR1## where X is a halogen atom, Y is independently an alkyl group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms, an alkoxy group of 1 to 4 carbon atoms substituted by a halogen atom, an alkylthio group of 1 to 4 carbon atoms, a trifluoromethyl group, a fluorine atom or a chlorine atom, Z is a hydrogen atom or a fluorine atom, and n is an integer of 0 to 2, with magnesium metal, and then with a formylating reagent. These compounds are used as intermediates for the synthesis of insecticides.

Abstract: Phenylcyclopropane carboxylic acid derivatives having the formula ##STR1## wherein X represents hydrogen or a halogen atom, C.sub.1-5 alkyl group C.sub.1-5 alkoxy group, trifluoromethyl, cyclopropyl, tri-lower alkylsilyl, lower alkylthio or cyano group; Y represents hydrogen atom or cyano group; and R represents ##STR2## are novel compounds which are useful as insecticides and acaricides.

Abstract: Phenylcyclopropane carboxylic acid derivatives having the formula (I) ##STR1## wherein X represents a C.sub.2 -C.sub.10 straight or branched alkyl group, are novel compounds having excellent acaricidal effect.

Abstract: A phenoxypyridine derivative having the formula(CH.sub.3 COO).sub.n CH.sub.3-n R (I)wherein R represents ##STR1## and n is 1 or 2 is produced by reacting a phenoxypyridine-N-oxide derivative having the formula(CH.sub.3 COO).sub.n-1 CH.sub.4-n R' (III)wherein R' represents ##STR2## and n is 1 or 2 with acetic anhydride. The phenoxypyridine derivatives are especially suitable for producing synthetic pyrethroids having excellent insecticidal and acaricidal activity in high yield and an economical process.

Abstract: Insecticidal compounds having the formula ##STR1## wherein X and Y are the same or different and represent a hydrogen or a halogen atom, methyl group, a lower alkoxy group, trifluoromethyl group, phenoxy group or X and Y form ##STR2## group except both of X and Y are hydrogen atoms.