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Yuji Aoki, Matsumoto-Shi JP

Yuji Aoki, Matsumoto-Shi JP

Patent application numberDescriptionPublished
20080198187LIQUID RESIDUAL AMOUNT DETECTION APPARATUS FOR LIQUID CONTAINER - A liquid residual amount detection apparatus for a liquid container, includes: a sensor chamber that has a liquid supply port introducing liquid to be delivered from a liquid containing portion, and supplies the liquid to an external liquid consuming apparatus; a diaphragm that defines a part of the sensor chamber and is movable in response to a liquid containing amount in the sensor chamber; a pressure receiving plate that is attached to the diaphragm; a recess portion that is connected to the sensor chamber and is closed by the pressure receiving plate when the liquid containing amount in the sensor chamber becomes a predetermined amount or less; a piezoelectric element that applies vibration to at least a part of the recess portion so as to detect a free vibration state according to the applied vibration; a detection portion that detects an amplitude value or a frequency of a residual vibration waveform of a counter electromotive force by the free vibration state detected by the piezoelectric element; and a calculation portion that calculates a liquid residual amount in the liquid container on the basis of the amplitude value or the frequency of the residual vibration waveform detected by the detection portion.08-21-2008
20080198211SEALING STRUCTURE OF FLUID CONTAINER, AND METHOD OF MANUFACTURING AND REUSING FLUID CONTAINER - The invention provides a fluid-outlet-section sealing structure that includes: a fluid outlet section, a sealing member, and a sealing film. The fluid outlet section has a fluid flow channel and an open-end surface. The open-end surface of the fluid outlet section is formed at a fluid outlet end of the fluid flow channel of the fluid outlet section. The sealing member is provided in the fluid flow channel of the fluid outlet section. The sealing film is provided to cover the fluid flow channel of the fluid outlet section and the open-end surface of the fluid outlet section. The sealing film is thermally adhered to the open-end surface of the fluid outlet section and the sealing member.08-21-2008
20080252669LIQUID DETECTION UNIT, AND LIQUID CONTAINER USING LIQUID DETECTION UNIT - A liquid detection unit includes a unit case, a sensor, and a relay terminal. The sensor is held by the unit case. The relay terminal has a relay portion and first and second terminals that are provided on both ends of the relay portion. The second terminal is connected to the sensor. The unit case includes a first terminal holding portion, a second terminal holding portion, and a deformable portion. The first terminal holding portion holds the first terminal of the relay terminal. The second terminal holding portion holds the second terminal of the relay terminal. The deformable portion is provided between the first terminal holding portion and the second terminal holding portion, and elastically deforms in a direction in which a distance between the first terminal holding portion and the second terminal holding portion is reduced.10-16-2008
20080252702LIQUID CONTAINER - A liquid container includes a liquid containing portion, a case, a liquid detection unit, and an impact absorbing portion. The liquid containing portion contains liquid. The case forms a space that accommodates the liquid containing portion. The liquid detection unit includes a liquid introducing portion that is connected through an attachment portion, which is provided in the case, to a liquid delivery port of the liquid containing portion. The impact absorbing portion is provided at least between a bottom face of the case and the liquid detection unit to absorb an impact applied to the liquid detection unit.10-16-2008
20080316249LIQUID SEALING STRUCTURE, MANUFACTURING METHOD OF THE SAME, LIQUID CONTAINER, REFILLED LIQUID CONTAINER, AND REFILLING METHOD OF THE SAME - A liquid sealing structure includes: a liquid lead-out portion which has a liquid passage and an opening end surface formed in a liquid lead-out end of the liquid passage; a sealing member which is disposed on the opening end surface inside the liquid passage; a valve mechanism which is disposed inside the sealing member in the liquid passage to close the liquid passage; and a sealing film which covers the liquid passage and the opening end surface of the liquid lead-out portion and is thermally welded to the opening end surface and the sealing member, wherein a notch portion for passing a liquid lead-out member which is inserted into the liquid passage to open the valve mechanism is formed in the sealing film.12-25-2008
20090064501Method of Manufacturing Liquid Container and Liquid Container Manufactured Using the Same - A liquid container manufacturing method including a storage container which is storable a liquid receptacle, and including preparing the liquid container for which a liquid housed in the liquid receptacle is supplied to the outside via a flow path inside a liquid volume detector device, filling the liquid in the liquid receptacle stored in the storage container, and connecting the liquid volume detector device to the liquid receptacle filled with liquid.03-12-2009
20090195573LIQUID DETECTION UNIT, AND LIQUID CONTAINER - Disclosed is a liquid detection unit having a liquid detection chamber, a detection portion including a detection space communicating with the liquid detection chamber via a through hole of a detection portion installation member and a piezoelectric sensor which detects remaining vibrations, and a movable member including a detection space sealing surface which is urged by an urging member and thus comes to abut against one surface of a detection portion installation member. The liquid detection chamber includes an abutting surface abutting against a second sealing surface being in contact with a first sealing surface of the movable member and the detection portion installation member. When a distance between the first sealing surface of the movable member to the detection space sealing surface is defined as L1 and a distance between the second sealing surface of the liquid detection chamber to the abutting surface is defined as L2, the relationship L1>L2 is satisfied.08-06-2009
20090213159Printing Apparatus - A printing apparatus includes a recording head that prints an image and an ink cartridge that stores ink to the recording head. The ink cartridge includes an ink pack and an ink-end sensor that detects an ink-end point based on the pressure of ink supplied from the ink pack. The ink pressure corresponding to the ink-end point detected by the ink-end sensor is set to a first pressure that is the minimum pressure near an outlet of the ink cartridge at which the recording head can print an image of predetermined quality. A determining unit permits starting of a printing or cleaning operation in response to a command issued before the ink-end sensor detects the ink-end point and prohibits starting of a printing or cleaning operation in response to a command issued after the ink-end sensor has detected the ink-end point.08-27-2009
20100225704LIQUID EJECTING APPARATUS AND LIQUID HOUSING CONTAINER - A liquid ejecting apparatus includes a liquid housing container that is housed by a container housing portion. The container housing portion includes a first terminal connecting to the liquid housing container. A position determining pin defines an insertion direction in which the liquid housing container is inserted into the container housing portion. The liquid housing container includes a circuit substrate and a second terminal connecting to the first terminal. A position determining hole determines the position of the liquid housing container by inserting the position determining pin therein. An inclination portion is configured such that the first terminal first contacts a member disposed on a substrate mounting face, on which the circuit substrate is installed, of faces of the liquid housing container, by inserting the position determining pin into the position determining hole along the inclination portion when the liquid housing container is inserted into the container housing portion.09-09-2010
20100289847RECORDING MATERIAL DELIVERY SYSTEM FOR RECORDING MATERIAL-CONSUMING APPARATUS; CIRCUIT BOARD; STRUCTURAL BODY; AND INK CARTRIDGE - A circuit board of an ink cartridge is provided with a plurality of terminals, with the contact portions of the plurality of terminals forming a plurality of lines. The contact portions of two terminals used for detecting installation are positioned in a first line, and the contact portion of a power terminal is positioned between the two terminals. The first line may be positioned to a leading side when the ink cartridge is moved in a prescribed direction to effect installation in a printer. Alternatively, the first line may be the line closest to an opening of an ink delivery port. Alternatively, the first line may be the line closest to an ink delivery needle.11-18-2010

Patent applications by Yuji Aoki, Matsumoto-Shi JP