Abstract: A lubricating oil composition for internal combustion engines is disclosed. The composition exhibits a lower coefficient of friction and improved cleaning properties without causing a deterioration in thermal and oxidation stability.

Abstract: A lubricating oil composition for internal combustion engines containing a base oil mixture with specific properties and a monoglyceride with a specific structure. The lubricating oil composition of the present 5 invention, as well as providing outstanding wear resistance and fuel economy, causes condensed water etc. from water vapor produced as a result of fuel combustion to be dispersed in the oil, so preventing corrosion or rusting of the engine.

Abstract: A lubricating oil composition for internal combustion engines is disclosed. The composition exhibits a lower coefficient of friction and improved cleaning properties without causing a deterioration in thermal and oxidation stability.

Abstract: A lubricating oil composition comprising (A) a lubricating oil base oil the kinematic viscosity of which at 100° C. is in the range of from 1.4 to 6 mm2/s, (B) from 250 to 2000 ppm in terms of molybdenum of a molybdenum dialkyldithiocarbamate, (C) from 20 to 500 ppm in terms of sulphur of tetrabenzyl thiuram disulphide and (D) from 0.05 to 3.0 mass % of an amine. The lubricating oil composition of the present invention has a superior friction reducing effect and which has a superior fuel economy effect.

Abstract: A lubricating oil composition for internal combustion engines containing a base oil mixture with specific properties and a monoglyceride with a specific structure. The lubricating oil composition of the present 5 invention, as well as providing outstanding wear resistance and fuel economy, causes condensed water etc. from water vapour produced as a result of fuel combustion to be dispersed in the oil, so preventing corrosion or rusting of the engine.

Abstract: A lubricating oil composition for internal combustion engines containing a specific base oil, monoglyceride with a specific structure and ethylene oxide adduct with a specific structure in specific quantities and/or ratios. The lubricating oil composition of the present invention, as well as providing outstanding wear resistance and fuel economy, causes condensed water etc. from water vapour produced as a result of fuel combustion to be dispersed in the oil, so preventing corrosion or rusting of the engine.

Abstract: Method for the identification of a lubricating oil composition, characterised in that it comprises the following steps: a heating process to heat the lubricating oil composition which is the target of the investigation and which has the possibility of containing a volatile amine as a marker; after the heating process, a first reaction process which disposes into a vapour phase on top of the liquid surface of the lubricating oil composition a medium which contains an amine colouring reagent to be used in at least one kind of amine-based colouring reaction selected from a group comprised of quinhydrone reactions, ninhydrin reactions and Dragendorff reactions; after the heating process, a second reaction process which disposes into a vapour phase on top of the liquid surface of the lubricating oil composition a medium which contains a pH-dependent colouring reagent to be used in a pH-dependent colouring reaction; and an evaluation process in which the lubricating oil composition which is the target of the invest

Abstract: A lubricating oil composition comprising (A) a lubricating oil base oil the kinematic viscosity of which at 100° C. is in the range of from 1.4 to 6 mm2/s, (B) from 250 to 2000 ppm in terms of molybdenum of a molybdenum dialkyldithiocarbamate, (C) from 20 to 500 ppm in terms of sulphur of tetrabenzyl thiuram disulphide and (D) from 0.05 to 3.0 mass % of an amine. The lubricating oil composition of the present invention has a superior friction reducing effect and which has a superior fuel economy effect.

Abstract: An ink tank includes an ink containing chamber configured to directly contain ink, a supply port configured to supply the ink from the ink containing chamber to a recording head, a capillary member disposed in the supply port to hold the ink, and a sealing member configured to cover the supply port. An air volume (V) of a space constituted by the capillary member and the sealing member, an ink volume (Vi) held by the capillary member, and a maximum volume (Vexp) when air expands in the space accompanying environmental fluctuation of the ink tank, satisfy Vi?Vexp?V.

Abstract: An optical range finder is provided with a projection unit for projecting luminous flux to an object located in an optical axis direction, a detection unit for receiving the luminous flux returned from the object, a holding frame housing the projection unit and the detection unit, and a support substrate on which the holding frame is supported. The holding frame has a partition wall for separating the detection unit and the projection unit from each other. An end of the partition wall is provided with a tip protruding from a bottom of the holding frame. In the support substrate, a groove is formed in a surface side which comes in contact with the bottom of the holding frame to be engaged with the tip of the partition wall. Light leaked from the projection unit through a thickness of the support substrate to the detection unit is shut off by a combination of the tip and the groove.

Abstract: An optical range finder is provided with a projection unit for projecting luminous flux to an object located in an optical axis direction, a detection unit for receiving the luminous flux returned from the object, a holding frame housing the projection unit and the detection unit, and a support substrate on which the holding frame is supported. The holding frame has a partition wall for separating the detection unit and the projection unit from each other. An end of the partition wall is provided with a tip protruding from a bottom of the holding frame. In the support substrate, a groove is formed in a surface side which comes in contact with the bottom of the holding frame to be engaged with the tip of the partition wall. Light leaked from the projection unit through a thickness of the support substrate to the detection unit is shut off by a combination of the tip and the groove.