Patents by Inventor Akira Nakazawa
Akira Nakazawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150165800Abstract: A removable printhead assembly for a single-pass inkjet printer. The printhead assembly comprises: an elongate body adapted for removal and insertion in a cradle of the printer; an ink manifold assembly having a mounting surface defining a plurality of ink outlets; a plurality of printhead chips mounted on the mounting surface; one or more pressure regulator assemblies for delivering ink to the printhead chips at a predetermined backpressure; and a plurality of electrical terminals positioned along a length of the body for establishing electrical connection with a printer controller of the printer. The electrical terminals extend along one side of the elongate body, which is perpendicular to the mounting surface.Type: ApplicationFiled: February 27, 2015Publication date: June 18, 2015Inventors: Kia Silverbrook, Akira Nakazawa, Christopher Hibbard, Paul Ian Mackey, Norman Micheal Berry, Garry Raymond Jackson
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Patent number: 9056478Abstract: An elongate ink distribution member for mounting a printhead integrated circuit. The ink distribution member includes a plurality of longitudinally extending ink supply channels and a mounting surface having a plurality of ink supply conduits defined therein. The ink supply conduits are arranged in sets with each set of ink supply conduits being in fluid communication with a respective one of the ink supply channels. The ink supply conduits extend generally transversely from an upstream outer region towards a downstream inner region of the mounting surface.Type: GrantFiled: March 4, 2014Date of Patent: June 16, 2015Assignee: Memjet Technology Ltd.Inventors: Kia Silverbrook, Akira Nakazawa, Christopher Hibbard, Paul Ian Mackey, Norman Micheal Berry, Garry Raymond Jackson
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Patent number: 9056475Abstract: An inkjet printer includes: (a) a pagewidth inkjet printhead having a plurality of nozzles for delivering ink onto print media fed past the printhead; and (b) a maintenance assembly for maintaining the printhead. The maintenance assembly includes: (i) an elongate web of material; (ii) rollers for supporting the web; (iii) a maintenance member positioned opposite the printhead; (iv) a web-feeding mechanism for advancing the web past the printhead; and (v) an actuating mechanism for configuring the printer in either one of a maintenance position and a printing position. A gap is defined between the web and the printhead in the printing position.Type: GrantFiled: March 6, 2013Date of Patent: June 16, 2015Assignee: Memjet Technology Ltd.Inventors: Norman Micheal Berry, Akira Nakazawa, Kia Silverbrook
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Publication number: 20150155608Abstract: There is provided an electrode structure for preventing cracks occurring in a metal electrode due to heating in a manufacturing process in the case of stacking an insulating resin and the metal electrode which are different in thermal expansion coefficient. An electrode for a semiconductor circuit, stacked on a substrate made of an insulating resin, has an electrode structure composed of a main electrode including a slit formed by cutting out a part thereof to prevent occurrence of a crack in a manufacturing process caused by a difference in thermal expansion coefficient from the substrate, and an auxiliary electrode that covers the slit in the main electrode. No slit is provided but a bridge is formed at a portion where the slit in the main electrode and the slit in the auxiliary electrode overlap with each other, thereby eliminating a gap portion where the electrode does not exist.Type: ApplicationFiled: June 6, 2012Publication date: June 4, 2015Applicants: GUALA TECHNOLOGY CO., LTD., KABUSHIKI KAISHA NIHON MICRONICSInventors: Takuo Kudoh, Kiyoyasu Hiwada, Akira Nakazawa
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Patent number: 9044956Abstract: A pagewidth printhead assembly for an inkjet printer includes: a plurality of channels for distributing the ink along a length of the printhead assembly; a plurality of printhead integrated circuits; and an ink distribution member upon which the printhead integrated circuits are fixed and which distributes ink from the channels to the printhead integrated circuits. The ink distribution member has a plurality of ink supply holes and a plurality of ink supply conduits defined in a surface thereof and the printhead integrated circuits are fixed to the ink distribution member via a bonding film. The bonding film includes a plurality of through-holes coinciding with the ink supply holes and end portions of the ink supply conduits.Type: GrantFiled: February 14, 2014Date of Patent: June 2, 2015Assignee: Memjet Technology Ltd.Inventors: Kia Silverbrook, Akira Nakazawa, Christopher Hibbard, Paul Ian Mackey, Norman Micheal Berry, Garry Raymond Jackson
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Publication number: 20150122888Abstract: Swinging open the upstream-side cover part (31) and downstream-side cover part (32) of the check scanning apparatus (1) on a common support pivot (33) opens a U-shaped check transportation path (5). The check transportation path (5) can be opened with a simple single-action operation to remove checks (4) jammed in the check transportation path (5) and for maintenance of the magnetic head (84) and contact image sensors (82 and 83). When the task is completed, the open check transportation path (5) can also be returned to the original closed position by a simple single-action operation. If only those parts that require maintenance are exposed when the check transportation path is open, tasks that require opening the transportation path can be done without damaging other parts and without soiling the operator's fingers.Type: ApplicationFiled: January 13, 2015Publication date: May 7, 2015Inventors: Yoshiki Kinoshita, Hideki Furihata, Toru Takami, Akira Nakazawa
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Publication number: 20150111108Abstract: Provided is a secondary battery adopting an all-solid-state secondary cell structure with a storage layer sandwiched between a positive electrode layer and a negative electrode layer and which is superior to a conventional secondary battery with respect to at least one of volume, manufacturing, and positioning. The present invention provides a secondary battery including a single-layer secondary cell having a folded structure that a sheet-shaped single-layer secondary cell with a storage layer sandwiched between a positive electrode layer and a negative electrode layer is folded in two or four.Type: ApplicationFiled: April 25, 2013Publication date: April 23, 2015Inventors: Takuo Kudoh, Kiyoyasu Hiwada, Shozo Izumo, Tomokazu Saito, Akira Nakazawa
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Publication number: 20150072231Abstract: Provided is a secondary battery in which a single-layer secondary cell has an all-solid-state secondary cell structure with a storage layer sandwiched between a positive electrode layer and a negative electrode layer and which is superior to a conventional secondary battery with respect to at least one of volume, operation, and positioning. The present invention provides a secondary battery including a folded single-layer secondary cell formed by folding a sheet-shaped single-layer secondary cell, with a storage layer sandwiched between a positive electrode layer and a negative electrode layer, two or more times while alternately reversing the folding direction.Type: ApplicationFiled: April 25, 2013Publication date: March 12, 2015Applicant: KABUSHIKI KAISHA NIHON MICRONICSInventors: Takuo Kudoh, Kiyoyasu Hiwada, Shozo Izumo, Tomokazu Saito, Akira Nakazawa
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Publication number: 20150070439Abstract: A removable printhead assembly for a single-pass inkjet printer, the printhead assembly including: a body adapted for user removal and insertion in the printer; an elongate ink manifold assembly mounted in the body, the ink manifold assembly having a plurality of longitudinally extending ink channels, a plurality of outlets defined in a mounting surface; and a plurality of ink conduits connecting each ink channel to a corresponding set of outlets; a plurality of printhead chips mounted on the mounting surface; a plurality of pressure regulator assemblies for delivering ink to the printhead chips at a negative pressure; a plurality of electrical connectors; and a plurality of ink ports.Type: ApplicationFiled: November 19, 2014Publication date: March 12, 2015Inventors: Kia Silverbrook, Akira Nakazawa, Christopher Hibbard, Paul Ian Mackey, Norman Micheal Berry, Garry Raymond Jackson
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Patent number: 8960553Abstract: Swinging open the upstream-side cover part (31) and downstream-side cover part (32) of the check scanning apparatus (1) on a common support pivot (33) opens a U-shaped check transportation path (5). The check transportation path (5) can be opened with a simple single-action operation to remove checks (4) jammed in the check transportation path (5) and for maintenance of the magnetic head (84) and contact image sensors (82 and 83). When the task is completed, the open check transportation path (5) can also be returned to the original closed position by a simple single-action operation. If only those parts that require maintenance are exposed when the check transportation path is open, tasks that require opening the transportation path can be done without damaging other parts and without soiling the operator's fingers.Type: GrantFiled: January 22, 2013Date of Patent: February 24, 2015Assignee: Seiko Epson CorporationInventors: Yoshiki Kinoshita, Hideki Furihata, Toru Takami, Akira Nakazawa
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Publication number: 20150000119Abstract: A repair apparatus of a sheet type cell that is capable of appropriately repairing and detoxifying defects of a sheet type cell having semiconductor characteristics is provided. The repair apparatus repairs a sheet type cell in which a storage layer is sandwiched by layers of a positive electrode and a negative electrode and at least the storage layer has semiconductor characteristics. The repair apparatus includes an electrical stimulation source that applies electrical stimulation between the positive electrode and the negative electrode, an electrical characteristic measurement means that measures electrical characteristics of the sheet type cell when the electrical stimulation is applied, and a control means that specifies a value of the electrical stimulation by the electrical stimulation source while considering measured electrical characteristics.Type: ApplicationFiled: November 14, 2011Publication date: January 1, 2015Applicants: KABUSHIKI KAISHA NIHON MICRONICS, GUALA TECHNOLOGY CORPORATIONInventors: Kiyoyasu Hiwada, Harutada Dewa, Akira Nakazawa, Nobuaki Terakado
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Publication number: 20140352775Abstract: The purpose of this invention is to provide a repeatedly chargeable and dischargeable quantum battery that is available for a long period of time without an aging change. The quantum battery is charged by causing an n-type metal oxide semiconductor to have a photo-exited structural change, thereby the electrode of quantum battery is prevented from being oxide and a price reduction and stable operation are possible. The repeatedly usable quantum battery is constituted by laminating; a first metal electrode having an oxidation preventing function, charging layer in which an energy level is formed in the band gap by causing an n-type metal oxide semiconductor covered with an insulating material to have a photo-exited structure change and electrons are trapped at the energy level; p-type metal oxide semiconductor layer; and a second metal electrode having the oxidation preventing function, the electrodes are passive metal layers formed of metals having passive characteristics.Type: ApplicationFiled: October 30, 2011Publication date: December 4, 2014Applicants: GUALA TECHNOLOGY CO., LTD., KABUSHIKI KAISHA NIHON MICRONICSInventors: Takuo Kudoh, Akira Nakazawa, Nobuaki Terakado
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Publication number: 20140320108Abstract: This invention provide a testing device and method for a quantum battery by a semiconductor probe, whereby the electrical characteristics of the charging layer can be evaluated during the quantum battery manufacturing process. The testing device equipped with a semiconductor probe constituted by a conductive electrode and a metal oxide semiconductor layer including a metal oxide semiconductor which are laminated on a support, a source voltage for applying voltage across an electrode equipped to the semiconductor probe and a basic electrode laminated on a secondary battery charging layer, and an ammeter for measuring the current flowing between the electrode equipped on the semiconductor probe and the basic electrode of the secondary battery on which charging layer is laminated, and measures the current-voltage characteristics of the charging layer.Type: ApplicationFiled: October 30, 2011Publication date: October 30, 2014Applicants: GUALA TECHNOLOGY CO., LTD., KABUSHIKI KAISHA NIHON MICRONICSInventors: Harutada Dewa, Kiyoyasu Hiwada, Akira Nakazawa, Nobuaki Terakado
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Publication number: 20140184707Abstract: An elongate ink distribution member for mounting a printhead integrated circuit. The ink distribution member includes a plurality of longitudinally extending ink supply channels and a mounting surface having a plurality of ink supply conduits defined therein. The ink supply conduits are arranged in sets with each set of ink supply conduits being in fluid communication with a respective one of the ink supply channels. The ink supply conduits extend generally transversely from an upstream outer region towards a downstream inner region of the mounting surface.Type: ApplicationFiled: March 4, 2014Publication date: July 3, 2014Applicant: ZAMTEC LIMITEDInventors: Kia Silverbrook, Akira Nakazawa, Christopher Hibbard, Paul Ian Mackey, Norman Micheal Berry, Garry Raymond Jackson
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Publication number: 20140160202Abstract: A pagewidth printhead assembly for an inkjet printer includes: a plurality of channels for distributing the ink along a length of the printhead assembly; a plurality of printhead integrated circuits; and an ink distribution member upon which the printhead integrated circuits are fixed and which distributes ink from the channels to the printhead integrated circuits. The ink distribution member has a plurality of ink supply holes and a plurality of ink supply conduits defined in a surface thereof and the printhead integrated circuits are fixed to the ink distribution member via a bonding film. The bonding film includes a plurality of through-holes coinciding with the ink supply holes and end portions of the ink supply conduits.Type: ApplicationFiled: February 14, 2014Publication date: June 12, 2014Applicant: Zamtec LimitedInventors: Kia Silverbrook, Akira Nakazawa, Christopher Hibbard, Paul Ian Mackey, Norman Micheal Berry, Garry Raymond Jackson
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Patent number: 8678549Abstract: A printhead integrated circuit includes: an elongate silicon substrate having a frontside and a backside; a row of nozzle chambers disposed at the frontside of the substrate, each nozzle chamber having a respective nozzle opening defined in a roof thereof and a respective inlet defined in a floor thereof; a row of inlet channels defined in the substrate, each inlet channel having a first end defining the inlet of a respective nozzle chamber and an opposite second end; and an ink supply channel defined in the backside of the substrate, each ink supply channel having a depth sufficient to meet with the second ends the inlet channels. Each ink supply channel is elongate and extends longitudinally along a length of the substrate so as to provide fluidic communication between the backside and the nozzle chambers.Type: GrantFiled: March 25, 2013Date of Patent: March 25, 2014Assignee: Zamtec LtdInventors: Kia Silverbrook, Akira Nakazawa, Christopher Hibbard, Paul Ian Mackey, Norman Michael Berry, Garry Raymond Jackson
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Patent number: 8672450Abstract: A printhead assembly for an inkjet printer including: an elongate ink distribution member having a plurality of outlets spaced along a length thereof; a plurality of printhead integrated circuits fixed to the ink distribution member, each printhead integrated circuit having nozzles for ejecting ink supplied via the plurality of outlets; and an electrical connector for transmitting power and data to the plurality of printhead integrated circuits. The electrical connector has a first end electrically connected to the plurality of integrated circuits and a second end having an elongate array of contacts for electrical connection with a corresponding array of contacts on the inkjet printer.Type: GrantFiled: February 21, 2013Date of Patent: March 18, 2014Assignee: Zamtec LtdInventors: Kia Silverbrook, Akira Nakazawa, Christopher Hibbard, Paul Ian Mackey, Norman Micheal Berry, Garry Raymond Jackson
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Patent number: 8587855Abstract: An electric-field-sensitive element (1) includes: an optical function layer (5) that includes a metal oxide selected from the group consisting of tin dioxide, titanium dioxide and zinc oxide, and an insulating material covering the metal oxide, the optical function layer (5) having a visible light transmittance that changes through application of an electric field; and a first and second electrode layer (7, 9) that sandwich the optical function layer (5) therebetween.Type: GrantFiled: August 19, 2011Date of Patent: November 19, 2013Assignee: Guala Technology Co., Ltd.Inventor: Akira Nakazawa
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Publication number: 20130276878Abstract: A photovoltaic cell is provided that enables cost reduction and stable operation with a simple configuration and enhances conversion efficiency by a new technology of forming an energy level in a band gap. In the photovoltaic cell, a substrate, a conductive first electrode, an electromotive force layer, a p-type semiconductor layer, and a conductive second electrode are laminated, electromotive force is generated by photoexciting the electron in the band gap of the electromotive force layer by light irradiation, the electromotive force layer is filled with an n-type metal oxide semiconductor of fine particles coated by an insulating coat, a new energy level is formed in a band gap by photoexcited structural change caused by ultraviolet irradiation, and efficient and stable operation can be performed by providing a layer of an n-type metal oxide semiconductor between the first electrode and the electromotive force layer.Type: ApplicationFiled: April 1, 2013Publication date: October 24, 2013Inventor: Akira NAKAZAWA
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Patent number: 8556388Abstract: A printhead assembly that has a casing with a series of module mounting sites, printed circuit board mounting sites and busbar support formations. A printhead module is mounted to each module mounting site respectively. Each printhead module has a printhead integrated circuit (IC). A plurality of printed circuit boards control the printhead IC's, one of the printed circuit boards being fixed to each of the printed circuit board mounting sites respectively. Busbars are secured in the busbar support formations for receiving data and power from the printed circuit boards. The printhead modules are electrically connected to the busbars to provide the printhead integrated circuits with power and data.Type: GrantFiled: May 19, 2010Date of Patent: October 15, 2013Assignee: Zamtec LtdInventors: Norman Micheal Berry, Akira Nakazawa, Kia Silverbrook