Abstract: A liquid sealed damper includes: an attachment portion attached to a peripheral portion of an opening of a vehicle or an opening and closing member for covering the opening; a contact portion to which an external force is input; an insulator configured to isolate vibration and connect the attachment portion and the contact portion; a main liquid chamber in which working liquid is sealed; an auxiliary liquid chamber having a wall portion formed of a diaphragm; and an orifice passage formed in the partition member and communicating with the main liquid chamber and the auxiliary liquid chamber. The partition member has a substantially circular surface forming a wall portion of the main liquid chamber. An opening portion at one end of the orifice passage is formed in the circular surface. The opening portion is formed to extend from an outer edge portion to a central portion of the circular surface.

Abstract: A liquid sealed damper includes: an attachment portion attached to a peripheral portion of an opening of a vehicle or an opening and closing member for covering the opening; a contact portion to which an external force is input; an insulator configured to isolate vibration and connect the attachment portion and the contact portion; a main liquid chamber in which working liquid is sealed, the insulator serving as a wall portion of the main liquid chamber; an auxiliary liquid chamber divided from the main liquid chamber by a partition member and having a wall portion formed of a diaphragm; and an orifice passage formed in the partition member and communicating with the main liquid chamber and the auxiliary liquid chamber. The partition member has an inner gap in the shape of a recess, and a part of the diaphragm is inserted into the inner gap.

Abstract: A liquid sealed damper includes: an attachment portion attached to a peripheral portion of an opening of a vehicle or an opening and closing member for covering the opening; a contact portion to which an external force is input; an insulator configured to isolate vibration and connect the attachment portion and the contact portion; a main liquid chamber in which working liquid is sealed; an auxiliary liquid chamber having a wall portion formed of a diaphragm; and an orifice passage formed in the partition member and communicating with the main liquid chamber and the auxiliary liquid chamber. The partition member has a substantially circular surface forming a wall portion of the main liquid chamber. An opening portion at one end of the orifice passage is formed in the circular surface. The opening portion is formed to extend from an outer edge portion to a central portion of the circular surface.

Abstract: A liquid sealed damper includes: an attachment portion attached to a peripheral portion of an opening of a vehicle or an opening and closing member for covering the opening; a contact portion to which an external force is input; an insulator configured to isolate vibration and connect the attachment portion and the contact portion; a main liquid chamber in which working liquid is sealed; an auxiliary liquid chamber having a wall portion formed of a diaphragm; and an orifice passage formed in the partition member and communicating with the main liquid chamber and the auxiliary liquid chamber. The partition member has a substantially circular surface forming a wall portion of the main liquid chamber. An opening portion at one end of the orifice passage is formed in the circular surface. The opening portion is formed to extend from an outer edge portion to a central portion of the circular surface.

Abstract: A liquid sealed damper includes: an attachment portion attached to a peripheral portion of an opening of a vehicle or an opening and closing member for covering the opening; a contact portion to which an external force is input; an insulator configured to isolate vibration and connect the attachment portion and the contact portion; a main liquid chamber in which working liquid is sealed, the insulator serving as a wall portion of the main liquid chamber; an auxiliary liquid chamber divided from the main liquid chamber by a partition member and having a wall portion formed of a diaphragm; and an orifice passage formed in the partition member and communicating with the main liquid chamber and the auxiliary liquid chamber. The partition member has an inner gap in the shape of a recess, and a part of the diaphragm is inserted into the inner gap.

Abstract: The ink jet recording method performs ink jet recording of an image on a recording medium using an ink jet head. The method allows an electrostatic force to act on ink prepared by dispersing charged particles containing colorants in a dispersion medium to form a thread of said ink, divides the thread into ink droplets of the ink to eject the ink droplets toward the recording medium and allows the ink droplets to be landed onto the recording medium moving relatively to the ink jet head to form an image dot on the recording medium. When a speed at which the recording medium and an ejection portion of the ink jet head for ejecting the ink droplets move relatively is referred to as “v”, a division frequency of the thread is referred to as “f”, and a diameter of the thread is referred to as “d”, the following expression is satisfied: (v/f)<(a×d) where “a” is a coefficient.

Abstract: The ink jet recording method allows an electrostatic force to act on an ink composition containing at least charged particles containing a colorant and a dispersion medium to form a thread of the ink composition, and divides the thread into small portions to eject ink droplets on a recording medium. A first average concentration of the charged particles contained in the thread from its tip end portion to its central portion is higher than a second average concentration of the charged particles contained in a whole thread. And/or, a first force acting on the charged particles contained in the thread is made larger than a second force obtained by subtracting the first force acting on the charged particles contained in the thread from a second force acting on a whole thread.

Abstract: An electrostatic ink jet head has a head substrate, an insulating substrate having at least one through hole, an ink guide, ink supply means, a control electrode, and meniscus control means. An ink passage is formed between the head substrate and the insulating substrate. The meniscus control means controls fixing of an edge portion of an ink meniscus formed in proximity to the through hole or within the through hole. With the meniscus control means, it becomes possible to maintain the position and shape of the ink meniscus with stability, thereby allowing ejection and flying of liquid droplets, such as ink droplets, with stability and formation of an image of high quality on a liquid droplets reception member such as a recording medium.

Abstract: In a printer, in order to compensate for non-uniformity of one of or both of film thickness of each pixel by an ink applying characteristic of the printer and fluctuations over time of a surface area, as well as to compensate for positional non-uniformity, new image data is generated from original image data and from the ink applying characteristic of the printer. Even if ink is supplied in a constant amount, an image is formed without non-uniform density. The printer has a simple structure in which a single dam plate (ink key) is provided along an axial direction of an ink moving roller. In ink supply control, a degree of opening of the dam plate is always a constant degree of opening, and an amount of ink supplied per unit time is a constant amount.

Abstract: The ink jet recording method allows an electrostatic force to act on an ink composition containing at least charged particles containing a colorant and a dispersion medium to form a thread of the ink composition, and divides the thread into small portions to eject ink droplets on a recording medium. A first average concentration of the charged particles contained in the thread from its tip end portion to its central portion is higher than a second average concentration of the charged particles contained in a whole thread. And/or, a first force acting on the charged particles contained in the thread is made larger than a second force obtained by subtracting the first force acting on the charged particles contained in the thread from a second force acting on a whole thread.

Abstract: The ink jet recording method performs ink jet recording of an image on a recording medium using an ink jet head. The method allows an electrostatic force to act on ink prepared by dispersing charged particles containing colorants in a dispersion medium to form a thread of said ink, divides the thread into ink droplets of the ink to eject the ink droplets toward the recording medium and allows the ink droplets to be landed onto the recording medium moving relatively to the ink jet head to form an image dot on the recording medium. When a speed at which the recording medium and an ejection portion of the ink jet head for ejecting the ink droplets move relatively is referred to as “v”, a division frequency of the thread is referred to as “f”, and a diameter of the thread is referred to as “d”, the following expression is satisfied: (v/f)<(a×d) where “a” is a coefficient.

Abstract: An electrostatic ink jet head has a head substrate, an insulating substrate having at least one through hole, an ink guide, ink supply means, a control electrode, and meniscus control means. An ink passage is formed between the head substrate and the insulating substrate. The meniscus control means controls fixing of an edge portion of an ink meniscus formed in proximity to the through hole or within the through hole. With the meniscus control means, it becomes possible to maintain the position and shape of the ink meniscus with stability, thereby allowing ejection and flying of liquid droplets, such as ink droplets, with stability and formation of an image of high quality on a liquid droplets reception member such as a recording medium.

Abstract: An inkjet recording method uses a line-array inkjet head, sets different ink ejection frequencies for respective ink ejection holes desposed in array and ejects ink onto a plate-shaped recording medium at the different ink ejection frequencies from the ink ejection holes to perform recording.

Abstract: The method and apparatus form as a two-dimensional image a first layer image including a three-dimensional object on a support based on two-dimensional image information and secure the first layer image as well as acquire first height information with which undulation corresponding to the three-dimensional object are reproducible, form a lamination image of the three-dimensional image having the undulation corresponding to the three-dimensional object by laminating ink solid ejected using a ink jet system on the first layer image based on the acquired first height information and fix the lamination image of the three-dimensional image formed on the support and having the undulation corresponding to the three-dimensional object.

Abstract: The multi-channel recording head includes a plurality of recording channels arranged in one direction, and spare channels arranged away from the recording channels by an integral multiple of the channel pitch of the recording channels on the extension of an array of the recording channels. The spare channels are arranged as least as many as the number of the recording channels, and each spare channel has the same physical resolution as the resolution of an image to be recorded. The physical resolution of the multi-channel recording head is lower than the resolution of the image. The image recording method and the image recording apparatus record the image by using the above multi-channel recording head.

Abstract: The multi-channel recording head includes a plurality of recording channels arranged in one direction, and spare channels arranged away from the recording channels by an integral multiple of the channel pitch of the recording channels on the extension of an array of the recording channels. The spare channels are arranged as least as many as the number of the recording channels, and each spare channel has the same physical resolution as the resolution of an image to be recorded. The physical resolution of the multi-channel recording head is lower than the resolution of the image. The image recording method and the image recording apparatus record the image by using the above multi-channel recording head.

Abstract: An inkjet recording method uses a line-array inkjet head, sets different ink ejection frequencies for respective ink ejection holes desposed in array and ejects ink onto a plate-shaped recording medium at the different ink ejection frequencies from the ink ejection holes to perform recording.

Abstract: A method of computer-to-cylinder lithographic printing, comprising: loading a plate material on a rotative plate cylinder of a lithographic printing apparatus; rotating the plate cylinder having loaded thereon the plate material; forming an image directly onto the plate material by an inkjet image-recording process which comprises ejecting an oil-based ink from a recording head having a plurality of ejecting channels, based on image data signals, utilizing an electrostatic field, to prepare a printing plate; subsequently performing lithographic printing with the thus prepared printing plate, wherein the recording head is driven so that every n'th channel thereof is actuated in a common phase, and wherein the plate cylinder is rotated to give a surface rotational speed V (mm/sec) of the plate material as represented by the following formula: V=25.4×(f×n)/N wherein N represents a recording resolution (dots/25.

Abstract: A method of computer-to-cylinder lithographic printing, comprising: loading a plate material on a rotative plate cylinder of a lithographic printing apparatus; rotating said plate cylinder having loaded thereon the plate material; forming an image directly onto the plate material by an inkjet image-recording process which comprises ejecting an oil-based ink from a recording head having a plurality of ejecting channels, based on image data signals, utilizing an electrostatic field, to prepare a printing plate; subsequently performing lithographic printing with the thus prepared printing plate, wherein said recording head is driven so that every n'th channel thereof is actuated in a common phase, and wherein said plate cylinder is rotated to give a surface rotational speed V (mm/sec) of the plate material as represented by the following formula:

Abstract: A computer-to-cylinder recording type lithographic printing method comprising: mounting a printing plate precursor onto a plate cylinder; forming an image directly onto a surface of said printing plate precursor mounted on the plate cylinder, by an ink jet process which comprises ejecting an ink containing a lipophilic component onto said printing plate precursor surface from a recording head having a plurality of ejection channels according to signals of image data, to thereby prepare a printing plate, said image recording being carried out while rotating the plate cylinder to effect main scanning, and moving said recording head in a direction parallel to an axis of the plate cylinder to effect subsidiary scanning; and performing lithographic printing with said printing plate, wherein the number of the ejection channels of said recording head is (X·(N/K)+1) and wherein the subsidiary scanning movement of said ejection head is carried out continuously at a constant speed of (X·(N/K)+1)