Abstract: [Task] The chromium nitride ion-plating coating has a property that it is hard but is liable to peel off. Year by year, the required level of wear resistance and scuffing resistance becomes higher in a diesel engine. The property of a coating is improved to enhance the wear resistance and scuffing resistance and also to improve resistance against peeling off. [Means for Solution] (1) Composition is mainly composed of chromium, nitrogen, and carbon, and the concentration of carbon relative to the total concentration of the main components is from 4 to 8% by weight. (2) The crystal structure is that texture of the CrN (111) plane orientation is from 0.4 to 2.0 in terms of a CrN (111) structural coefficient. (3) Vickers hardness is from Hv 1600 to Hv 2000.

Abstract: According to one embodiment, a display device includes: a casing comprising an opening; a display, at least a part of the display being housed in the casing; a circuit board configured to be housed in the casing and comprising a first side and a second side; a plurality of connector terminals on each of the first side and the second side of the circuit board and exposed through the opening; a first covering configured to be supported on the circuit board, and facing the first side to cover the opening; and a second covering configured to be supported on the circuit board, and facing the second side to cover the opening.

Abstract: [Task] The chromium nitride ion-plating coating has a property that it is hard but is liable to peel off. Year by year, the required level of wear resistance and scuffing resistance becomes higher in a diesel engine. The property of a coating is improved to enhance the wear resistance and scuffing resistance and also to improve resistance against peeling off. [Means for Solution] (1) Composition is mainly composed of chromium, nitrogen, and carbon, and the concentration of carbon relative to the total concentration of the main components is from 4 to 8% by weight. (2) The crystal structure is that texture of the CrN (111) plane orientation is from 0.4 to 2.0 in terms of a CrN (111) structural coefficient. (3) Vickers hardness is from Hv 1600 to Hv 2000.

Abstract: A piston ring having improved scuffing resistance, cracking resistance and fatigue resistance, consists of a high-chromium martensitic stainless steel and a sliding nitriding layer formed on the surface of said steel. The stainless steel consists of C: 0.3 to 1.0%; Cr: 14.0 to 21.0%, N: 0.05 to 0.50%, at least one of Mo, V, W and Nb: 0.03 to 3.0% in total, Si: 0.1 to 1.0%, Mn 0.1 to 1.0%, P: 0.05% or less, S: 0.05% or less, the balance being Fe and unavoidable impurities. The sliding nitriding layer comprises on its surface hard particles mainly consisting of nitrides in a range of from 0.2 to 2.0 ?m of average particle size, 7 ?m or less of the longest diameter, and from 5 to 30% in area ratio.

Abstract: An image pickup device has a first casing, a second casing constructed to be engaged slidably into the first casing, an image pickup unit arranged in the first casing or the second casing, the image pickup unit receiving reflected light from an object via a lens and outputting image information corresponding to the reflected light, a cushioning member constructed to be connected to the first casing and the second casing, respectively, and is expanded or contracted according to sliding action of the second casing, and a recording unit connected to the first casing and the second casing via the cushioning member, the recording unit recording the image information output from the image pickup unit to a storage area, wherein the recording unit is held in empty space constructed to be made when the second casing is slid.

Abstract: A piston ring for internal combustion engines has a coating film comprising a heat-resistant material and a solid lubricant dispersed therein on at least one side surface, the heat-resistant material comprising at least one of a polyamideimide-silicon dioxide hybrid material and a polyimide-silicon dioxide hybrid material having high heat resistance and mechanical strength and low hygroscopicity.

Abstract: Aggressive property of the nitrided side rails (30), which are combined with a spacer expander (31) to construct the oil-control ring, against the opposing material is improved. A nitriding layer consisting of nitrogen diffusion layer is formed on the outer peripheral surface or inner and outer peripheral surfaces of side-rail steel. The surface is free of compound layer. Hard grain-boundary phases (intergranular phases) are not present at least in the surface region of the side rail.

Abstract: A piston ring having improved scuffing resistance, cracking resistance and fatigue resistance, consists of a high-chromium martensitic stainless steel and a sliding nitriding layer formed on the surface of said steel. The stainless steel consists of C: 0.3 to 1.0%; Cr: 14.0 to 21.0%, N: 0.05 to 0.50%, at least one of Mo, V, W and Nb: 0.03 to 3.0% in total, Si: 0.1 to 1.0%, Mn 0.1 to 1.0%, P: 0.05% or less, S: 0.05% or less, the balance being Fe and unavoidable impurities. The sliding nitriding layer comprises on its surface hard particles mainly consisting of nitrides in a range of from 0.2 to 2.0 &mgr;m of average particle size, 7 &mgr;m or less of the longest diameter, and from 5 to 30% in area ratio.

Abstract: The steel for nitriding consists of 0.5 to 1.0% of C, 1.0% or less of Si, 0.3 to 1.0% of Mn, 5.0 to 12.0% of Cr, 0.5 to 2.0% of Mo, 0.1 to 0.3% of V, the balance being Fe and exhibits improved wear-resistance and fatigue-strength.

Abstract: A composite electromagnetic wave absorber capable of restricting the height of a pyramidal electromagnetic wave absorber and being applied to a compact anechoic chamber, wherein an upper absorber (3) is fabricated by dispersing ferrite powder in a general-purpose resin having a permittivity of not higher than 4.9.

Abstract: The steel for nitriding consists of 0.5 to 1.0% of C, 1.0% or less of Si, 0.3 to 1.0% of Mn, 5.0 to 12.0% of Cr, 0.5 to 2.0% of Mo, 0.1 to 0.3% of V, the balance being Fe and exhibits improved wear-resistance and fatigue-strength.

Abstract: This invention provides an alumina base ceramic sintered body excellent in wear resistance with high hardness, also with high strength and high toughness, and particularly suitable for a cutting tool or wear resistant member. This sintered body contains 5-70 % by volume of WC and 5-70% by volume of Ti (C,N) solid solution having a C/N mole ratio ranging from 1:9 to 9:1, the WC and Ti (C,N) having particle sizes of 5 .mu.m or less, respectively.

Abstract: Disclosed herein is a process for producing an unsaturated fatty acid or derivative thereof which comprises culturing an unsaturated fatty acid-producing microorganism belonging to the genus Rhodococcus in a medium containing a saturated fatty acid or a derivative thereof, or causing the resting cells of the microorganisms to act on a saturated fatty acid or a derivative thereof. Also disclosed herein is a process for producing an alkene or derivative thereof which comprises culturing an unsaturated hydrocarbon compound-producing microorganism belonging to the genus Rhodococcus in a medium containing an alkane or derivative thereof, or causing the resting cells of the microorganism to act on an alkane or derivative thereof.

Abstract: Novel alkaline cellulase K, CMCase I and CMCase II are obtained by isolation from a culture product of Bacillus sp KSM-635.These enzymes stably work in a wide range including an alkaline side, and their activity is shown even at low temperatures. Further, they have a strong resistance to surface active agents, chelating agents and proteinases. Therefore, they can be effectively utilized not only as an additive for clothing detergents, but also as a biomass and in other fields.

Abstract: A novel microorganism Torulopsis bombicola KSM-36 (FERM BP-799) isolated from cabbage leaves grown in a cabbage field located in Musashino-shi, Tokyo, has sophorose-producing activity.