Abstract: A motor vehicle peripheral monitoring apparatus uses a monitor region extension member as optical image forming means. The monitor region extension member comprises an upper image passage part and an upper image compression part. The upper image passage part includes a prism structural element of substantially a semi-conical shape whose prism apical angles become the maximum angle at the center of the member and are decreased toward the extremity from the center of the member. The upper image compression part includes a cylindrical structural element having a curved surface whose angles are set to be smaller continuously from the prism apical angles of the upper image passage part.

Abstract: An apparatus for inspecting a disc recording medium detects whether the high-frequency signals have been missed or not by the high-frequency-signal drop-out detecting circuit (26), in addition to the verification of the reproduced data and the detection of servo error of large instant change. Therefore, defect sectors of which sure detection have been heretofore difficult is detected with high efficiency, so as to prevent errors of the reproduced data.

Abstract: Phosphorothiolates represented by the formula, ##STR1## wherein R is an alkyl; A is an alkyl, haloalkyl, alkenyl, alkinyl, alkylthioalkyl, phenylthioalkyl, phthalimidoalkyl or phenylalkyl; X is hydrogen, a halogen or an alkyl; and n is an integer of 1 to 5, are obtained by (1) reacting sodium or potassium hydrosulfide with a compound represented by the formula, ##STR2## WHEREIN R, X and n have the same significances as mentioned above, to prepare a thiophosphate represented by the formula, ##STR3## wherein R, X and n have the same significances as mentioned above; and M is an alkali metal, and then (2) reacting said thiophosphate with a halide represented by the formula,Y -- Awherein A has the same significance as mentioned above; and Y is a halogen.The phosphorothiolates have insecticidal and fungicidal activities.

Abstract: A herbicidal and fungicidal composition which comprises as an active ingredient a pyridyltriazinone compound of the formula: ##STR1## wherein R is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, an alkoxycarbonylmethyl group whose alkoxy has 1 to 3 carbon atoms or a phenyl group.

Abstract: Novel N-substituted amino acid derivatives of the formula: ##STR1## wherein R.sub.1 is an alkenyl group having 2 to 5 carbon atoms, a halogen-substituted alkenyl group having 2 to 5 carbon atoms or an alkynyl group having 2 to 5 carbon atoms, R.sub.2 is a methyl or ##STR2## group in which R.sub.2 ' is an alkyl group having 1 to 4 carbon atoms or a halogen-substituted alkyl group having 1 to 4 carbon atoms; and R.sub.3 is a hydrogen atom, an alkyl having 1 to 20 carbon atoms, cycloalkyl having 3 to 6 carbon atoms, benzyl, hydroxyethyl or methoxyethyl group, and inorganic or organic acid addition salts thereof, which possess useful soil fungicidal activities and can be produced by reacting a sarcosine derivative of the formula:CH.sub.3 HNCH.sub.2 COOR.sub.3 (II)wherein R.sub.3 is as defined above, with a halogen compound of the formula:R.sub.1 -- X (III)wherein R.sub.1 is as defined above and X is a halogen atom, or by reacting an N-substituted glycine derivative of the formula: ##STR3## wherein R.sub.1 and R.

Abstract: Phosphorothiolates represented by the formula, ##STR1## wherein R is an alkyl; A is an alkyl, haloalkyl, alkenyl, alkinyl, alkylthioalkyl, phenylthioalkyl, phthalimidoalkyl or phenylalkyl; X is hydrogen, a halogen or an alkyl; and n is an integer of 1 to 5, are obtained by (1) reacting sodium or potassium hydrosulfide with a compound represented by the formula, ##STR2## WHEREIN R, X, and n have the same significances as mentioned above, to prepare a thiophosphate represented by the formula, ##STR3## wherein R, X and n have the same significances as mentioned above; and M is an alkali metal, and then (2) reacting said thiophosphate with a halide represented by the formula,Y--Awherein A has the same significance as mentioned above; and Y is a halogen.The phosphorothiolates have insecticidal and fungicidal activities.

Abstract: N-substituted-aminoacetamide compounds having the formula (I) ##STR1## wherein R.sub.1 represents a lower alkenyl group having up to 5 carbon atoms, a halogen-substituted lower alkenyl group having up to 5 carbon atoms or a lower alkynyl group having up to 5 carbon atoms, R.sub.2 and R.sub.3, which may be the same or different, each represents a hydrogen atom or a lower akyl group having up to 4 carbon atoms, and the inorganic and organic acid addition salts thereof, which are useful as fungicidal agents, processesfor preparing N-substituted-aminoacetamide compounds and fungicidal compositions containing at least one compound of the formula (I) as an active inredient.

Abstract: Novel N-(3,5-dihalophenyl)imide compounds, which exhibit a strong antimicrobial activity against microorganisms including phytopathogenic fungi, parasites of industrial products and pathogenic microorganisms, represented by the formula, ##STR1## wherein X and X' each represent halogens and A represents a substituted ethylene such as chloroethylene, C.sub.1 - C.sub.4 alkylthioethylene, C.sub.1 - C.sub.2 alkyl-ethylene or 1,2-di-C.sub.1 - C.sub.2 -alkyl-ethylene, a cyclopropylene such as 1,3-dimethylcyclopropylene, trimethylene, a cyclohexylene-1,2-, cyclohexenylene-1,2-, cyclohexadienylene-1,2- or o-phenylene.The N-(3,5-dihalophenyl)imide compounds can be obtained by any of methods which produce imide compounds or reaction of an N-(3,5-dihalophenyl)maleimide compound with a mercaptan, a hydrogen halide, phosphorus chloride or thionylchloride.

Abstract: N-substituted aminonitrile derivatives of the formula (I) ##EQU1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are as hereinafter defined, useful as fungicides, method for their preparation, and fungicidal compositions containing the N-substituted aminonitrile derivatives of the formula (I).