Abstract: An ink jet head has a head substrate including discharge elements for discharging ink, with an electric wiring board being electrically connected to the head substrate, in which the periphery of the head substrate is sealed with a first sealant, and an electric splice between the head substrate and the electric wiring board is sealed with a second sealant. The first and second sealants contain the same base resin and curing agent, and the second sealant shows higher hardness than the first sealant after curing. This ink jet head is free from problems such as cavities and fissures at the boundary of the two sealants caused by a difference in linear expansion coefficients.

Abstract: An aspect of the present invention is a process for producing a liquid ejection head including an ejection orifice member provided with ejection orifices for ejecting liquid. The process includes supplying to a surface of a base material for forming the ejection orifice member a mixture of a first composite for imparting a hydrophobic characteristic to the surface and a second composite being able to exhibit a hydrophilic characteristic by being irradiated with light; imparting a hydrophobic characteristic to the entire or a part of the surface by utilizing the first composite; and then irradiating the second composite with light in a partial region of the surface for imparting a hydrophilic characteristic to the region irradiated with the light.

Abstract: An ink jet ink reservoir having a part of its members formed of a polyolefin resin is provided which is free from printing defects caused by filter clogging attributable to a compound derived from an antioxidant. An ink jet ink reservoir used in an ink jet recording apparatus, wherein a part of constituent members of the ink jet ink reservoir is formed of a polyolefin resin, wherein the polyolefin resin contains as additive an antioxidant at least with a hindered phenol skeleton and a phosphorus antioxidant more hydrophobic than bis(2,6-di-t-butylphenyl) pentaerythritol diphosphite (denoted by P-6). The members are free from a phosphorus antioxidant having hydrophobicity equal to or lower than the above P-6.

Abstract: An ink jet recording head comprising a discharge port for discharging an ink; and a sealing tape for sealing the discharge port; wherein the sealing tape includes a pressure-sensitive adhesive layer constituted of an acrylic crosslinked polymer formed by crosslinking an alkyl (meth)acrylate ester copolymer with a metal chelate compound, and is peelably adhered, through the pressure-sensitive adhesive layer, to a part where the discharge port is formed.

Abstract: The present invention provides an anti-curl agent containing an amide compound of specific structure and molecular weight, an ink jet ink containing the amide compound, a method for ink jet recording to form images by ejecting the ink, and a method for reducing curl of recording media using the ink. The anti-curl agent of the present invention can reduce shape changes of a printed paper with a lapse of time, i.e., the curl phenomenon, tending to occur in particular with a plain paper printed over the entire surface, without deteriorating image quality.

Abstract: An adsorbent for ink jet use arranged in a position to be in contact with ink, having the higher capability of adsorption with respect to hydrophobic substance contained in ink than colorant therein. Then, an ink retaining container comprises an ink retaining portion for retaining ink to be supplied to an ink jet head, an ink supply opening which becomes the ink supply portion from the ink retaining portion to the head, an atmospheric communication opening for communicating the ink retaining portion with the air outside. This ink retaining container is provided with the above-mentioned adsorption member arranged in a position to be in contact with ink in it. With the adsorbent and the ink retaining container thus arranged, it is made possible to perform ink jet recording with excellent print characteristics by effectively removing the hydrophobic substance eluted form the ink absorbent in the ink retaining container.

Abstract: An ink jet head has a head substrate including discharge elements for discharging ink, with an electric wiring board being electrically connected to the head substrate, in which the periphery of the head substrate is sealed with a first sealant, and an electric splice between the head substrate and the electric wiring board is sealed with a second sealant. The first and second sealants contain the same base resin and curing agent, and the second sealant shows higher hardness than the first sealant after curing. This ink jet head is free from problems such as cavities and fissures at the boundary of the two sealants caused by a difference in linear expansion coefficients.

Abstract: The invention relates to a process for producing a high-quality ink-jet recorded image. The process comprises the steps of (i) applying a first ink containing at least one colorant to an opaque printing medium by an ink-jet method to form a visible image; and (ii) applying a second ink, which does not change or substantially not change the hue of the printing medium, to a portion of the printing medium that is complementary to the visible image, thereby alleviating a difference in gloss between the visible image and the portion complementary to the visible image.

Abstract: The present invention provides an anti-curl agent containing an amide compound of specific structure and molecular weight, an ink jet ink containing the amide compound, a method for ink jet recording to form images by ejecting the ink, and a method for reducing curl of recording media using the ink. The anti-curl agent of the present invention can reduce shape changes of a printed paper with a lapse of time, i.e., the curl phenomenon, tending to occur in particular with a plain paper printed over the entire surface, without deteriorating image quality.

Abstract: An useful aqueous photocurable resin composition is provided. The aqueous photocurable resin composition of the present invention comprises at least water, a polymerizable material polymerizable with radical initiation and a water-soluble photopolymerization initiator which generates a radical with light, wherein the polymerizable material has at least two polymerizable functional groups and one anionic functional group.

Abstract: In a system in which a computer terminal of a doctor, capable of entering audio data and an image and of data printing, is capable of communicating with a server managed by a third person and having a large-capacity memory apparatus, dialog data, containing an image and audio data in a dialog between the doctor and a patient, are transmitted from the computer terminal of the doctor to the server for storage in the large-capacity memory apparatus, then the audio data in the dialog data are recognized and converted into text data, clinical report data are generated from the text data, and the clinical report data are printed by the computer terminal of the doctor to generate a clinical report. The clinical report is shown to the patient and is given an approving signature, which is stored in correlation with the dialog data.

Abstract: An adsorbent for ink jet use arranged in a position to be in contact with ink, having the higher capability of adsorption with respect to hydrophobic substance contained in ink than colorant therein. Then, an ink retaining container comprises an ink retaining portion for retaining ink to be supplied to an ink jet head, an ink supply opening which becomes the ink supply portion from the ink retaining portion to the head, an atmospheric communication opening for communicating the ink retaining portion with the air outside. This ink retaining container is provided with the above-mentioned adsorption member arranged in a position to be in contact with ink in it. With the adsorbent and the ink retaining container thus arranged, it is made possible to perform ink jet recording with excellent print characteristics by effectively removing the hydrophobic substance eluted form the ink absorbent in the ink retaining container.

Abstract: The invention relates to a process for producing a high-quality ink-jet recorded image. The process comprises the steps of (i) applying a first ink containing at least one colorant to an opaque printing medium by an ink-jet method to form a visible image; and (ii) applying a second ink, which does not change or substantially not change the hue of the printing medium, to a portion of the printing medium that is complementary to the visible image, thereby alleviating a difference in gloss between the visible image and the portion complementary to the visible image.

Abstract: An adsorbent for ink jet use arranged in a position to be in contact with ink, having the higher capability of adsorption with respect to hydrophobic substance contained in ink than colorant therein. Then, an ink retaining container comprises an ink retaining portion for retaining ink to be supplied to an ink jet head, an ink supply opening which becomes the ink supply portion from the ink retaining portion to the head, an atmospheric communication opening for communicating the ink retaining portion with the air outside. This ink retaining container is provided with the above-mentioned adsorption member arranged in a position to be in contact with ink in it. With the adsorbent and the ink retaining container thus arranged, it is made possible to perform ink jet recording with excellent print characteristics by effectively removing the hydrophobic substance eluted form the ink absorbent in the ink retaining container.

Abstract: Provided is an inexpensive vehicular communication apparatus capable of transferring image data containing a record of an accident to a safe, external location, the apparatus being usable in an ordinary automotive vehicle. The apparatus includes an image sensing device, a data storage device for storing image data that has been captured by the image sensing device, a sensor for sensing impact, a portable-terminal holding device in which a portable terminal is capable of being placed, and an operation controller which, if impact has been sensed by the sensor, is for notifying a prescribed party via the portable terminal unless the portable terminal is removed from the portable-terminal holding device within a predetermined period of time.

Abstract: An useful aqueous photocurable resin composition is provided. The aqueous photocurable resin composition of the present invention comprises at least water, a polymerizable material polymerizable with radical initiation and a water-soluble photopolymerization initiator which generates a radical with light, wherein the polymerizable material has at least two polymerizable functional groups and one anionic functional group.

Abstract: Provided is an inexpensive vehicular communication apparatus capable of transferring image data containing a record of an accident to a safe, external location, the apparatus being usable in an ordinary automotive vehicle. The apparatus includes an image sensing device, a data storage device for storing image data that has been captured by the image sensing device, a sensor for sensing impact, a portable-terminal holding device in which a portable terminal is capable of being placed, and an operation controller which, if impact has been sensed by the sensor, is for notifying a prescribed party via the portable terminal unless the portable terminal is removed from the portable-terminal holding device within a predetermined period of time.

Abstract: The ink jet recording apparatus of this invention comprises a means 67 for heating a record material to a predetermined temperature range at the position of recording, a recording head 41 for ejecting ink 46 from an ink ejection orifice 49 toward the record material to perform recording, the ink containing a substance having thickening properties when undergoing heat, and/or a substance having a cloud point for the heat; a means 69 for measuring the duration for which the recording head resides at the position of recording; and means for controlling the duration of residence in accordance with the properties of the ink to prevent the ejection function being impaired owing to the heating of the surroundings of the ink ejection orifice.

Abstract: Disclosed herein is a water-based ink for ink-jet, comprising a liquid composition containing a coloring material and a liquid medium, wherein the ink comprises a polymer exhibiting a heat-reversible type thickening property and a compound having a light-heat converting function, or a polymer which exhibits a heat-reversible type thickening property and has a moiety capable of undergoing light-heat conversion.

Abstract: An adsorbent for ink jet use arranged in a position to be in contact with ink, having the higher capability of adsorption with respect to hydrophobic substance contained in ink than colorant therein. Then, an ink retaining container comprises an ink retaining portion for retaining ink to be supplied to an ink jet head, an ink supply opening which becomes the ink supply portion from the ink retaining portion to the head, an atmospheric communication opening for communicating the ink retaining portion with the air outside. This ink retaining container is provided with the above-mentioned adsorption member arranged in a position to be in contact with ink in it. With the adsorbent and the ink retaining container thus arranged, it is made possible to perform ink jet recording with excellent print characteristics by effectively removing the hydrophobic substance eluted form the ink absorbent in the ink retaining container.