Abstract: There is provided motor, including: a stator including a plurality of laminated plates; and a rotor arranged inside the stator with a gap between the rotor and the stator, wherein the stator further includes an annular yoke located outside of the stator and a plurality of teeth protruding from an inner peripheral surface of the yoke toward the rotor, wherein slots in which coils wound around the teeth are arranged are formed between the teeth that are adjacently arranged, wherein gaps to which a cooling medium is supplied are formed between bottom portions of the slots and the coils, and wherein the stator further includes end plate members arranged so as to face the laminated plates.

Abstract: A shaft includes a main refrigerant passage capable of supplying a refrigerant in one direction on an axial center part and a test piece side sub-refrigerant passage having a starting end communicating with the vicinity of a downstream end in a refrigerant supply direction of the main refrigerant passage. The downstream end in the refrigerant supply direction of the main refrigerant passage is set at the position before an end of the shaft at the side to which a test piece is connected and a predetermined position on the downstream side in the refrigerant supply direction relative to a test piece side bearing. An ending end (discharge port) of the test piece side sub-refrigerant passage is set on the upstream side (counter test piece side) in the refrigerant supply direction relative to the test piece side bearing.

Abstract: A thermally sensitive recording medium which has thermally sensitive recording layer containing colorless or pale colored basic leuco dye and organic color developer as main components on a substrate, wherein said thermally sensitive recording layer contains diphenylsulfone bridgeable type compound represented by general formula (1) and at least one compound represented by general formula (1). In general formula (2), X and Y can be different and indicates a saturated or an unsaturated liner or grafted hydrocarbon group of carbon number 1-12 which can possess ether bond, or indicates wherein R indicates a methylene group or an ethylene group, T indicates a hydrogen atom or an alkyl group of carbon number 1-4, and R1-R6 independently indicate a halogen atom, an alkyl group of carbon number 1-6, or an alkenyl group, further, m, n, p, q, r, t indicate an integer number of 0-4 and when are bigger than 2, R1-R6 can be different, and a is an integer of 0-10.

Abstract: A thermal sensitive recording medium which has a feature to change the color of recorded pattern slowly and spontaneously after development, and the recorded pattern which has several days passed can be easily distinguished from that of just after development. Said thermal sensitive recording medium contains 4-hydroxybenzoic acid ester represented by general formula (I) as a color developer and uses triphenylmethane-based leuco dye and reddish color developing leuco dye whose maximum absorption wave length is 450.about.560 nm as a dye precursor. ##STR1## In this formula, R represents unsubstituted or substituted lower alkyl group of carbon number 1-7 or benzyl group.

Abstract: A thermal sensitive recording sheet comprising a substrate having thereon a thermal sensitive color developing layer mainly composed of basic leuco dye and an organic color developer, characterized by said thermal sensitive developing layer includes derivatives of amino benzene sulfone amide indicated by general formula (I) as an organic color developer, and includes sulfone amide compound indicated by general formula (II) as a sensitizer by amount of 0.01-2 parts based on 1 part of the color developer indicated by general formula (I). ##STR1## wherein "X" indicates an oxygen or sulfur atom, "Y" indicates a lower alkyl group of carbon number 1-4 or electron attracting group and "m" indicates an integral number from 0 to 4. "R" indicates a non-substituted or a substituted phenyl group, aralkyl group, lower alkyl group of carbon number 1-6, cycloalkyl group of carbon number 3-6, lower alkenyl group of carbon number 2-6 or naphthyl group.

Abstract: In a thermal recording sheet including a substrate having thereon a thermal color developing layer containing colorless or pale colored basic achromatic dye and an organic color developer, the thermal color developing layer contains aluminium hydroxide and a urea-formaldehyde resin pigment. The thermal recording sheet is small in abrasion of the recording head and adherence of depositions to the head even after long-run recording, and friction staining in unrecorded portion due to the recording head and change in gloss in unrecorded portion during recording are small.

Abstract: A thermal recording medium wherein ultraviolet absorbent is included in undercoat layer and/or in thermal sensitive color developing layer, ultraviolet isolator consisted of calcined particle which is flaky pigment whose refractive index is 1.5 to 1.6 and whose surface is coated with insoluble cerium compound and amorphous silica is included in thermal sensitive color developing layer and/or in protective layer, and fluorescent dye is included in protective layer.