Patents by Inventor Atsushi Sumii
Atsushi Sumii 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: 20230226836Abstract: The controller of a liquid ejection apparatus is configured to execute a cleaning operation of cleaning the transport belt by the cleaning member and a recovery operation of recovering cleaning capability of the cleaning member by rotating the transport belt in a state where the cleaning member contacts the transport belt.Type: ApplicationFiled: January 13, 2023Publication date: July 20, 2023Inventor: Atsushi SUMII
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Publication number: 20230226837Abstract: When at least a part of a cleaning region is located downstream of a contact position where a cleaner is in contact with a transport belt in a normal rotation direction of the transport belt during cleaning of a cleaning region, the control portion can perform cleaning position adjustment control to reversely rotate the transport belt so that an entire of the cleaning region is located upstream of the contact position in the normal rotation direction, before the cleaner is switched from a separation state to a contact state.Type: ApplicationFiled: January 15, 2023Publication date: July 20, 2023Inventors: Atsushi SUMII, Keisuke NIWA
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Publication number: 20230211620Abstract: The liquid ejection apparatus includes a liquid ejection section that ejects liquid onto a medium, a transport belt that transports the medium, a cleaning member that cleans the transport belt by coming into contact with the transport belt, the cleaning member being capable of switching between a contact state in which the cleaning member comes into contact with the transport belt and a separation state in which the cleaning member is separated from the transport belt, and a control section that controls an ejection operation of the liquid, a rotation operation of the transport belt, and switching a state of the cleaning member, when a cleaning operation of cleaning the transport belt by the cleaning member is executed, the control section executes a preliminary ejection that ejects in advance liquid from the liquid ejection section to the transport belt based on preset cleaning control information.Type: ApplicationFiled: December 8, 2022Publication date: July 6, 2023Inventor: Atsushi SUMII
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Patent number: 11472209Abstract: A medium transport apparatus includes a first roller configured to apply feeding force to a medium in a medium transport path for transporting the medium, a second roller disposed on an upstream side of the first roller in a medium transport direction in the medium transport path, the second roller being configured to apply feeding force to the medium, a third roller configured to be switched between a first position at which the medium is to be nipped with the second roller and a second position at which the nipping of the medium is to be released, a switching section configured to switch a position of the third roller, and at least one protruding member protruding from an outer circumferential surface of the second roller, the protruding member being configured to separate the medium from the outer circumferential surface of the second roller in the medium transport path.Type: GrantFiled: April 7, 2020Date of Patent: October 18, 2022Assignee: Seiko Epson CorporationInventor: Atsushi Sumii
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Publication number: 20200324559Abstract: A medium transport apparatus includes a first roller configured to apply feeding force to a medium in a medium transport path for transporting the medium, a second roller disposed on an upstream side of the first roller in a medium transport direction in the medium transport path, the second roller being configured to apply feeding force to the medium, a third roller configured to be switched between a first position at which the medium is to be nipped with the second roller and a second position at which the nipping of the medium is to be released, a switching section configured to switch a position of the third roller, and at least one protruding member protruding from an outer circumferential surface of the second roller, the protruding member being configured to separate the medium from the outer circumferential surface of the second roller in the medium transport path.Type: ApplicationFiled: April 7, 2020Publication date: October 15, 2020Inventor: Atsushi SUMII
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Patent number: 10717304Abstract: A printer includes an inversion path that inverts a medium, an inversion roller having a circumferential surface that serves as a path surface of the inversion path, an advancing roller having a circumferential surface that faces both a first path that is a path before the medium is inverted and a second path that is a path after the medium is inverted. The printer also includes an idler roller disposed above the inversion roller and a supply mechanism that is disposed above the idler roller and that supplies the medium toward the recording head. The inversion roller is made smaller in diameter than the advancing roller, and the inversion roller is positioned within a height range of the advancing roller, and at least part of the idler roller is positioned within the height range of the advancing roller.Type: GrantFiled: June 28, 2019Date of Patent: July 21, 2020Assignee: Seiko Epson CorporationInventors: Atsushi Sumii, Soichiro Kll
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Patent number: 10556451Abstract: A recording apparatus include a recording head that performs recording by ejecting ink onto paper from a plurality of nozzles, in which both a length of a first curved path in a first reverse path and a length of a second curved path in a second reverse path are longer than a distance of a head surface having a plurality of nozzles from a nip position in the pair of first feed rollers that transports paper toward the recording head to a position on the most downstream side in the medium transport direction. Further, a curvature of the second curved path is configured to be longer than a curvature of the first curved path.Type: GrantFiled: November 27, 2018Date of Patent: February 11, 2020Assignee: Seiko Epson CorporationInventor: Atsushi Sumii
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Publication number: 20200001628Abstract: A printer includes an inversion path that inverts a medium, an inversion roller having a circumferential surface that serves as a path surface of the inversion path, an advancing roller having a circumferential surface that faces both a first path that is a path before the medium is inverted and a second path that is a path after the medium is inverted. The printer also includes an idler roller disposed above the inversion roller and a supply mechanism that is disposed above the idler roller and that supplies the medium toward the recording head. The inversion roller is made smaller in diameter than the advancing roller, and the inversion roller is positioned within a height range of the advancing roller, and at least part of the idler roller is positioned within the height range of the advancing roller.Type: ApplicationFiled: June 28, 2019Publication date: January 2, 2020Inventors: Atsushi SUMII, Soichiro Kll
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Publication number: 20190160835Abstract: A recording apparatus include a recording head that performs recording by ejecting ink onto paper from a plurality of nozzles, in which both a length of a first curved path in a first reverse path and a length of a second curved path in a second reverse path are longer than a distance of a head surface having a plurality of nozzles from a nip position in the pair of first feed rollers that transports paper toward the recording head to a position on the most downstream side in the medium transport direction. Further, a curvature of the second curved path is configured to be longer than a curvature of the first curved path.Type: ApplicationFiled: November 27, 2018Publication date: May 30, 2019Inventor: Atsushi SUMII
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Patent number: 10189287Abstract: Provided is a printing apparatus capable of smoothly transporting a paper sheet, on a first surface of which printing is performed, with the paper sheet facing an ejection head.Type: GrantFiled: September 6, 2017Date of Patent: January 29, 2019Assignee: Seiko Epson CorporationInventor: Atsushi Sumii
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Publication number: 20180086116Abstract: Provided is a printing apparatus capable of smoothly transporting a paper sheet, on a first surface of which printing is performed, with the paper sheet facing an ejection head.Type: ApplicationFiled: September 6, 2017Publication date: March 29, 2018Inventor: Atsushi SUMII
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Patent number: 9085175Abstract: A recording apparatus includes: a plurality of first ribs provided at predetermined intervals in a direction intersecting with a direction along which a recording target medium is transported; a plurality of second ribs provided at predetermined intervals in the direction intersecting with the direction along which the recording target medium is transported, the plurality of second ribs being provided downstream of the plurality of first ribs for guiding the recording target medium to a downstream side, the plurality of second ribs being provided at an area where the plurality of second ribs can face the recording head; a first member that is made of a resin material that is used as a material of the plurality of first ribs; and a second member that is made of a metal material that is used as a material of the plurality of second ribs.Type: GrantFiled: February 28, 2012Date of Patent: July 21, 2015Assignee: Seiko Epson CorporationInventors: Tokujiro Okuno, Hiroshi Ue, Atsushi Sumii, Mitsuhiro Koseki
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Patent number: 9039124Abstract: A printer includes a pair of input rollers, a pair of output rollers, a print head and a control section. The control section is configured to transport a print medium by rotating the input rollers and the output rollers after printing on a target region and before printing on a next target region. The control section is configured to determine, before carrying out transporting, whether a combination of the input rollers and the output rollers which pinch the print medium would change in a case where the print medium were transported from a current position to a next target position, and, in a case where there would be a change, the control section being configured to transport the print medium from the current position to the target position in a retracted state where the print head is moved to an outside of a range where the print medium passes.Type: GrantFiled: July 31, 2014Date of Patent: May 26, 2015Assignee: Seiko Epson CorporationInventors: Takafumi Ogimura, Atsushi Sumii
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Patent number: 9022508Abstract: In a transport for reversing a front and a back of a paper so as to print the back of a printing paper after printing the front of the printing paper, an attachment amount of ink to the front of the printing paper is determined for each region of the front, and on the path of the transport, in a predetermined position where the warpage of the opposite direction to the warpage of the swelling curl of the printing medium generated by the attachment of ink to the front of the printing paper is generated in a site of the printing paper having a region in which the amount of ink attachment is determined to be equal to or greater than a predetermined value, the transport of the printing medium waits for a predetermined time.Type: GrantFiled: May 22, 2012Date of Patent: May 5, 2015Assignee: Seiko Epson CorporationInventors: Hiroshi Ue, Tokujiro Okuno, Atsushi Sumii
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Publication number: 20150062228Abstract: A printer includes a pair of input rollers, a pair of output rollers, a print head and a control section. The control section is configured to transport a print medium by rotating the input rollers and the output rollers after printing on a target region and before printing on a next target region. The control section is configured to determine, before carrying out transporting, whether a combination of the input rollers and the output rollers which pinch the print medium would change in a case where the print medium were transported from a current position to a next target position, and, in a case where there would be a change, the control section being configured to transport the print medium from the current position to the target position in a retracted state where the print head is moved to an outside of a range where the print medium passes.Type: ApplicationFiled: July 31, 2014Publication date: March 5, 2015Inventors: Takafumi OGIMURA, Atsushi SUMII
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Patent number: 8356894Abstract: An ink jet recording apparatus includes a recording head which discharges ultraviolet curing inks toward a recording sheet while reciprocally moving in a reciprocal movement direction M crossing a transportation direction S of the recording sheet; and an ultraviolet irradiation head which irradiates ultraviolet rays toward the ultraviolet curing inks discharged from the recording head and attached to the recorded medium. The recording head includes a going recording head and a returning recording head which are disposed at the front and the back of the reciprocal movement direction M with respect to a region in which the ultraviolet irradiation head irradiates the ultraviolet rays to the recording sheet.Type: GrantFiled: October 10, 2008Date of Patent: January 22, 2013Assignee: Seiko Epson CorporationInventors: Tsunenobu Endo, Kazuma Ozaki, Tsuyoshi Otani, Atsushi Sumii, Yasuharu Harada
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Publication number: 20120299992Abstract: In a transport for reversing a front and a back of a paper so as to print the back of a printing paper after printing the front of the printing paper, an attachment amount of ink to the front of the printing paper is determined for each region of the front, and on the path of the transport, in a predetermined position where the warpage of the opposite direction to the warpage of the swelling curl of the printing medium generated by the attachment of ink to the front of the printing paper is generated in a site of the printing paper having a region in which the amount of ink attachment is determined to be equal to or greater than a predetermined value, the transport of the printing medium waits for a predetermined time.Type: ApplicationFiled: May 22, 2012Publication date: November 29, 2012Applicant: Seiko Epson CorporationInventors: Hiroshi Ue, Tokujiro Okuno, Atsushi Sumii
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Publication number: 20120218361Abstract: A recording apparatus includes: a plurality of first ribs provided at predetermined intervals in a direction intersecting with a direction along which a recording target medium is transported; a plurality of second ribs provided at predetermined intervals in the direction intersecting with the direction along which the recording target medium is transported, the plurality of second ribs being provided downstream of the plurality of first ribs for guiding the recording target medium to a downstream side, the plurality of second ribs being provided at an area where the plurality of second ribs can face the recording head; a first member that is made of a resin material that is used as a material of the plurality of first ribs; and a second member that is made of a metal material that is used as a material of the plurality of second ribs.Type: ApplicationFiled: February 28, 2012Publication date: August 30, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Tokujiro OKUNO, Hiroshi UE, Atsushi SUMII, Mitsuhiro KOSEKI
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Patent number: 7584959Abstract: A media stacker which can be inserted into a main body of a liquid ejecting apparatus and stack a discharged recording medium moves downward in an inclined direction to be located below a liquid ejecting portion and a discharge portion when the media stacker is being inserted and moves upward in the inclined direction to be located vicinity to a discharge slot when the media stacker is being extracted. A guide mechanism for guiding movement of the media stacker and a guide gear which is rotated while following to the guide mechanism are formed on both sides of the media stacker.Type: GrantFiled: November 20, 2006Date of Patent: September 8, 2009Assignee: Seiko Epson CorporationInventors: Masaaski Kinoshita, Atsushi Sumii
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Publication number: 20090115827Abstract: An ink jet recording apparatus includes a recording head which discharges ultraviolet curing inks toward a recording sheet while reciprocally moving in a reciprocal movement direction M crossing a transportation direction S of the recording sheet; and an ultraviolet irradiation head which irradiates ultraviolet rays toward the ultraviolet curing inks discharged from the recording head and attached to the recorded medium. The recording head includes a going recording head and a returning recording head which are disposed at the front and the back of the reciprocal movement direction M with respect to a region in which the ultraviolet irradiation head irradiates the ultraviolet rays to the recording sheet.Type: ApplicationFiled: October 10, 2008Publication date: May 7, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Tsunenobu Endo, Kazuma Ozaki, Tsuyoshi Otani, Atsushi Sumii, Yasuharu Harada