Abstract: An article support having a mount section comprising: a first engaging element (18) that has a pillar protruding from a base and a first hook extending from the pillar so that it can be displaced elastically; and a second engaging element that has a pillar protruding from the base and a second hook extending from the pillar so that it can be displaced elastically. The first hook and the second hook can be displaced elastically independently of each other and are disposed on the sides opposite to each other with respect to the pillars and. When the mount section is attached to an object, the pillar of the first engaging element bears a load on the object and the first hook and the second hook are engaged with the object to fixedly hold the article support on the object.

Abstract: An article support having a mount section comprising: a first engaging element (18) that has a pillar protruding from a base and a first hook extending from the pillar so that it can be displaced elastically; and a second engaging element that has a pillar protruding from the base and a second hook extending from the pillar so that it can be displaced elastically. The first hook and the second hook can be displaced elastically independently of each other and are disposed on the sides opposite to each other with respect to the pillars and. When the mount section is attached to an object, the pillar of the first engaging element bears a load on the object and the first hook and the second hook are engaged with the object to fixedly hold the article support on the object.

Abstract: An ink composition for use in an on-demand inkjet printer capable of printing on plain paper at a recording rate of 10 ips or higher, which ink composition comprises at least a pigment and non-pigment components including at least water and a thickening agent and shows a weight loss ratio at 25° C. and 60 RH % for 30 minutes of 5 to 25% based on the total weight of the ink. Also disclosed is an on-demand inkjet recording process using the ink composition.

Abstract: An ink jet printer which performs recording by allowing an ink droplet to be attached to plain paper, characterized in that there is used an ink composition comprising at least water, a pigment and a water-soluble organic solvent which exhibits a weight loss of from 10% to 40% based on the total weight of ink, a 25° C. surface tension increase of not smaller than 1 mN/m from the initial value and a viscosity change of not greater than 150% of the initial value after 24 hours of aging at a temperature of 25° C.

Abstract: A wiper apparatus for use in a motor vehicle with a pivot extending from an interior side of a vehicle body toward the external and penetrating a pivot holder that is fixed integrally onto the vehicle body. The pivot is rotatable with respect to the pivot holder and further holds a wiper arm at its penetrating tip portion. An outer circumferential surface of the pivot has an engaging groove that is fitted with an elastic retainer ring to retain the pivot on the pivot holder. An upper side surface of the engaging groove is an inclined surface so that the retaining ring can get out of the engaging groove with the aid of the inclined groove side surface when the pivot is pressed downwardly. Thus, the pivot can be easily removed from the pivot holder for replacement or the like, and if a large shock load acts on the pivot, it is possible to prevent the shock load from reaching the entire wiper apparatus or the vehicle body.

Abstract: When a solid ink printing master plate is constructed by liquefying by heating an ink composition which exists as a solid at room temperature, imparting some jet energy thereto thereby jetting out ink droplets, and then fixing the thus spattering ink droplets onto a substrate, the adhesion strength between the ink composition and the substrate is controlled to 25 g/mm2 or more.

Abstract: An ink composition for use in an on-demand inkjet printer capable of printing on plain paper at a recording rate of 10 ips or higher, which ink composition comprises at least a pigment and non-pigment components including at least water and a thickening agent and shows a weight loss ratio at 25° C. and 60 RH % for 30 minutes of 5 to 25% based on the total weight of the ink. Also disclosed is an on-demand inkjet recording process using the ink composition.

Abstract: A solid-ink printing original plate which comprises a substrate and an image comprising ink dots formed on the substrate, and which is produced by a process comprising the steps of: melting a solid ink that is a solid at a room temperature; and jetting the melt of the solid ink onto a substrate to form ink dots, wherein the solid ink has a penetration index of not more than 5 at a room temperature. Also disclosed is a process for producing the solid-ink printing original plate.

Abstract: A hot-melt ink composition comprising at least one composition of: (a) a cyan ink composition containing a cyan pigment as a colorant, wherein the cyan ink composition shows a maximum chroma C* on a recording medium of 45 or higher, a hue angle H0 at the maximum chroma of from 240° to 270° and a color difference &Dgr;E* of 3 or smaller as measured through 100-hour irradiation with xenon lamp light at a luminous energy of 0.35 W/m2 and a wavelength of 340 nm; (b) a yellow ink composition containing a yellow pigment as a colorant, wherein the yellow ink composition shows a maximum chroma C* on a recording medium of 70 or higher, a hue angle H0 at the maximum chroma of from 90° to 110° and a color difference &Dgr;E* of 5 or smaller as measured through 100-hour irradiation with xenon lamp light at a luminous energy of 0.

Abstract: A solid-ink printing original plate which comprises a substrate and an image comprising an ink dot formed on the substrate, and which is prepared by a process comprising the steps of: melting a solid ink that is a solid at a room temperature; and jetting the melt of the solid ink onto a substrate to form an ink dot, wherein the ink dots that have solidified on the substrate have an ink dot height of at least 5 &mgr;m, and a ratio (aspect ratio) of the ink dot height to the minor axis size of the ink dot of from 0.05 to 0.5. Also disclosed is a process for producing the solid-ink printing original plate.

Abstract: A hot-melt ink composition adapted for an ink jet recording process comprising the steps of: heating an ink composition which stays as solid at room temperatures so that it is liquefied; and then applying some jetting energy to the ink composition so that it is jetted onto a recording medium in the form of ink droplet to form a recorded dot, wherein said ink composition comprises a pigment and an alcoholic wax having a hydroxyl value of from 20 to 150 and has a melt viscosity of from 5 to 30 mPa.s upon the use thereof.

Abstract: An optical memory device having at least two nonlinear optical media connected together by at least two light paths. This optical memory device can make high-speed light pulse signal processing which cannot be realized by the conventional electric switch.

Abstract: An electro-luminescent conversion light emitting device for use in an information communication field. The light emitting device includes a semi-transparent reflective film substrate. On the semi-transparent reflective film is formed a transparent conductive film. On the transparent conductive film is formed a light emitting layer of organic thin film on the transparent conductive film. On the light emitting layer is formed an electrode. The semi-transparent reflective film 2 transmits parts of the light emitted by the light emitting layer to the glass substrate and reflects parts of the light to the light emitting layer. The semi-transparent reflective film acts as a light resonator with the Ag-Mg metal electrode on back of the light emitting layer.

Abstract: A first half-mirror, a buffer layer, a second half-mirror, a transparent electrode, an organic luminescent layer and a metal electrode which also serves as a reflector are formed on a transparent substrate thereby to constitute a first resonator between the second half-mirror and the metal electrode and a second resonator between the first half-mirror and the metal electrode. Light output of a desired wavelength is obtained from the light emitted from the organic luminescent layer utilizing resonance characteristics of the first and second resonators.

Abstract: A resonance type variable wavelength luminescent device which can control a spectrum of emission light of luminescent elements in response to an input signal such as voltage, heat, pressure, sound wave, magnetic field, electric field, gravity, electromagnetic wave or the like. Sequentially formed as laminated on a glass substrate are a semi-transparent reflective film, first electrically conductive transparent electrode films, a variable optical length layer, second electrically conductive transparent electrode films, a hole injection layer, an active layer made of aluminum chelate or the like and metallic electrodes, so that the first and second electrically conductive transparent electrode films are mutually arranged in a matrix form.

Abstract: A multi-color light-emitting element has at least two optical micro-cavity structures having respectively different optical lengths determining their emission wavelengths. Each micro-cavity structure contains a film of or organic material as a light-emitting region, which may be a single film of uniform thickness in the element.

Abstract: An organic nonlinear optical single crystal belonging to a rhombic or monoclinic system and having a light absorption wavelength end of 410 nm or less and at least one nonlinear optical coefficient of 30 pm/V or more, and being able to phase match to the light absorption wavelength end, such as a single crystal of 1,4-dioxa-8-aza-8-(4'-acetylphenyl)-spiro[4.5]decane, is effective in nonlinear optical components and light frequency convertors.

Abstract: A nonlinear optical element comprising a tetraazaporphyrin compound represented by the formula (I): ##STR1## This nonlinear optical element is excellent in that it is improved over low switching speed of the conventional inorganic materials and over small nonlinearity and poor chemical and physical stability and workability of the conventional organic materials.

Abstract: According to the present invention, there is provided a non-linear optical device comprising a non-linear optical medium comprising an organic compound, which remarkably improves the non-linear optical properties. The non-linear optical device according to the present invention is suited for the second and third harmonic generations, photomixing optical parametric oscillations, optical switches and optical bistable devices.

Abstract: Disclosed is an electrophotographic photoreceptor in which an organic lubricant is provided on the surface of an organic photoconductive layer or on a protective layer formed on the organic photoconductive layer. Elements of the organic lubricant are partly exposed from the surface of the organic photoconductive layer or the protective layer while the remainder portions of the elements are embedded or fixed by chemical reaction in the surface region of the photoconductive layer or the protective layer so that the exposed portions of the elements of the organic lubricant provides a lubricating surface layer. The lubricating surface layer supresses wear of the photoreceptor thereby enabling the photosensitive layer to withstand a long repeated use without impairing electrophotographic characteristics.