Abstract: Disclosed herein is an ink-jet recording method in which recording is conducted with an ink comprising a pigment component on a recording medium comprising a substrate and a porous layer including polymer particles provided thereon. The method comprises, in the case where the pore diameter distribution of the porous layer including polymer particles and the particle diameter distribution of the pigment component are both expressed in terms of frequency distribution, the steps of forming an image upon controlling a proportion of the frequency of the pore diameter of the porous layer including polymer particles, which overlaps the particle diameter distribution of the pigment component, to the frequency of the whole pore diameter of the porous layer including polymer particles to from 0.1% to 10%; and heat-treating the porous layer including polymer particles after the formation of the image.

Abstract: In a recording medium having an ink accepting layer formed on at least one surface of a base paper, the ink accepting layer is formed in the form of islands scattered on the surface of the base paper with a uniform plane density.

Abstract: The present invention provides a recording medium having an ink receiving layer on its base material, in which the ink receiving layer is obtained by coating the base material with dispersed liquid containing aluminum hydrate, a coupling agent, and a resin emulsion having hydrolyzable groups expressed by the following general formula (1):

Abstract: The present invention provides a recording medium having an ink receiving layer on its base material, in which the ink receiving layer is obtained by coating the base material with dispersed liquid containing aluminum hydrate, a coupling agent, and a resin emulsion having hydrolyzable groups expressed by the following general formula (1): —MRn(OR′)3−n  (1) where R and R′ represent hydrogen or alkyl groups, which may be either identical or different; n represents an integer from 0 to 2; and M represents Si, Ti, or Zr. In addition, the invention provides an image formation method for forming an image by ejecting ink from micropores to attach the ink on the recording medium, and also provides a production method for the recording medium.

Abstract: There is provided an optical apparatus which has excellent assembly performance, can suppress an increase in cost, and attain a decrease in thickness. The optical apparatus includes a board (1) having a photographing optical system and a mechanical system mounted on its surface. A plurality of opening portions (1a, 1b, 1c) are formed in the board (1). The opening portion (1a) is sealed with a sealing member such as a glass member to allow a light beam to pass and prevent dust and the like from entering the storage space for parts between the board (1) and a shield case (49). The photographing optical system mounted on the board (1) includes a stop unit (30) for adjusting the light amount of an object image guided through the opening portion (1a), and prism-like optical members (G1, G2, G3, G4), each consisting of, e.g., a glass or plastic material and having a sculptured surface as a reflecting surface.

Abstract: Disclosed herein is a recording medium comprising a substrate and an ink-receiving layer provided on the substrate, wherein the ink-receiving layer comprises an alumina hydrate having a boehmite structure, an average particle thickness of 2.0 to 6.0 nm and a crystallite size of 5.0 to 8.0 nm in a direction of a (020) plane, and the recording medium has a degree of parallelization of 30 to 1,000.

Abstract: A printing apparatus which uses a printing medium, which can retain lots of coloring materials near the surface of the printing medium and can cause ink solvent to permeate rapidly, and can performs printing in a printing mode that is suitable for the above mentioned printing medium, is provided. Furthermore, a user friendly printing apparatus is realized. More specifically, The printing mode for the above mentioned printing medium is made into a mode that uses less ink ejection per one pixel.

Abstract: A recording medium having a non-sized single-layer fibrous structure which is composed mainly of a fibrous material and contains no filler and employing a face of the single-layer fibrous structure as an ink-receiving face, wherein alumina hydrate of a boehmite structure and a cationic resin are present at least near the surface of the fibrous material.

Abstract: Disclosed herein is an ink-jet recording method in which recording is conducted with an ink comprising a pigment component on a recording medium comprising a substrate and a porous layer including polymer particles provided thereon, the method comprising, in the case where the pore diameter distribution of the porous layer including polymer particles and the particle diameter distribution of the pigment component are both expressed in terms of frequency distribution, the steps of forming an image upon controlling a proportion of the frequency of the pore diameter of the porous layer including polymer particles, which overlaps the particle diameter distribution of the pigment component, to the frequency of the whole pore diameter of the porous layer including polymer particles to from 0.1% to 10%, and heat-treating the porous layer including polymer particles after the formation of the image.

Abstract: A human body detector for a seat which does not deteriorate comfort of sitting even when it is disposed on the seat, has a high sensitivity and can be easily fitted to the seat. Vibration detection means (5) is disposed in such a manner that even when a person is seated, the means (5) comes into contact with the bottom surface of a seat pad (16) of a seat (19) and accordingly the person does not feel the means (5). According to this construction, the human body does not easily feel the means (5) by the provision of the seat pad (16), the existence of the vibration detection means (5) is hardly felt even when the hardness and the shape are changed, and various measures for improving the sensitivity of the vibration detection means (5) can be taken. The vibration detection means (5) may be merely bonded to the seat pad (16) or may be fixed to a seat spring (17) or a seat frame (18), and can be fitted more easily to the seat (19) than when it is disposed below a surface cloth (15) of the seat (19).

Abstract: Two kinds of pressure sensors using a piezoelectric composite comprising amorphous chlorinated polyethylene, crystalline chlorinated polyethylene and piezoelectric ceramic powder are disclosed. The first is a piezoelectric cable comprising an inner conductor of a metal helix, the volume within the metal helix is filled with fine insulating polymer fibers, a piezoelectric composite layer circumferentially surrounding the inner conductor, and an outer conductor of a metal film attached on a polymer membrane. The metal film is in contact with said composite layer but separated from the inner conductor and a protective jacket. The second type of pressure sensor is a planar sensor comprising a piezoelectric composite in a planar form sandwiched with conductors of two metal films attached on two polymer membranes, each metal film is in contact with the composite but separated from each other.

Abstract: A memory device with an Exclusive-OR function includes memory cells for storing a data of true or false value. Input data is written into at least one selected memory cell separately or simultaneously as a positive or negative logic. The stored data is read from at least one selected memory cell separately or simultaneously, e.g., as a positive logic data if an identity-retrieval data has a true value, and as a negative logic data if the identity-retrieval data has a false value.

Abstract: A data storing apparatus in which a magnetic storing means includes magnetic memory cells for memorizing data of a first value or a second value. Input data is written to the memory cells separately or simultaneously by electromagnetic induction. One or more magnetic memory cells are selected, with respect to which the data is to be read or written. Each magnetic memory cell has a ferromagnetic body holding the data of the first value or the second value in accordance with direction of magnetization or magnetizing force thereof. The current control means performs the reading or writing of the data with respect to the selected magnetic cells. The current control means comprises semiconductor devices and controls current therethrough in both directions.

Abstract: A light-transmitting recording material for electrophotography is disclosed which has a light-transmitting base material and a surface layer. The surface layer contains a thermoplastic resin and a release agent having a melting point of from 40.degree. C. to 120.degree. C. Also, a heat fixing method is provided in which a toner image is formed and heat-fixed on the above light-transmitting recording material.

Abstract: The body movement of a person in a bed or a seat is detected by a piezo-electric element without contacting to the body, and absence or presence in the bed or the seat and rough body movement are judged by detecting the fine body movement propagated by the functioning of heart and breathing of the body, and in case the presence in bed is judged the time measurement operation is started by the timer, and by judging the absence and rough body movement the time measurement is reset. It is judged that the body on the bed or the seat has fallen asleep when the measurement time of the timer exceeds a predetermined set time.

Abstract: A light-transmitting recording material for electrophotography has a light-transmitting base material, a conductive undercoat layer formed on the light-transmitting base material, and a light-transmitting toner acceptable layer formed on the conductive undercoat layer. The surface resistivity of the conductive undercoat layer ranges from 1.times.10.sup.7 .OMEGA. to 1.times.10.sup.10 .OMEGA. at 20.degree. C. and 60% relative humidity. The conductive undercoat layer contains a metallic conductive or semiconductive material, and the light-transmitting toner acceptable layer includes a wax as a releasing agent and a thermoplastic resin. Also, a heat fixing method is provided in which a toner image is formed and heat-fixed on the above-mentioned light-transmitting recording material.

Abstract: An image signal recording apparatus controlling the transfer of image data from temporary memory to non-volatile memory obtains an image of an object, inputs an image signal corresponding to the obtained image, and temporarily stores the input image signal. When it has been detected that an image signal corresponding to a storable capacity of the temporary storage has been input, the subsequent photographing operation is prohibited. It is thereby possible to securely store an image signal corresponding to an obtained image of an object.

Abstract: The body movement of a person in a bed or a seat is detected by a piezo-electric element without contacting to the body, and absence or presence in the bed or the seat and rough body movement are judged by detecting the fine body movement propagated by the functioning of heart and breathing of the body, and in case the presence in bed is judged the time measurement operation is started by the timer, and by judging the absence and rough body movement the time measurement is reset. It is judged that the body on the bed or the seat has fallen asleep when the measurement time of the timer exceeds a predetermined set time.

Abstract: The present invention is to enable phototaking operation even during the signal transfer from the buffer to the final recording medium. Image pickup device 14 converts the optical image into an electrical signal. A recording process circuit 20 applies a process, such as compression, to the taken image. The image information processed by the circuit 20 is recorded in a rigid disk device 26, through a buffer memory 22 and an interface 28, under the control of a memory control circuit 24. A system control circuit 30 enables the continuous recording operation or the single recording operation, respectively when the remaining capacity of the memory 22 is at least equal to V1, or less than V1. Also the circuit 30 interrupts the continuous recording operation or reduces the rate of the continuous recording, if the remaining capacity of the memory 22 reaches V2 (<V1) in the course of a continuous recording operation. V2 corresponds to a memory capacity of image information of at least an image frame.

Abstract: A drilling method and a drilling apparatus of a hard brittle material in which a core drill is used for abrasive grinding of high accuracy and high durability.