Patents by Inventor Yoshikazu Koike
Yoshikazu Koike 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: 20230382140Abstract: A recording device configured to perform recording on a recording medium, includes a recording unit; a medium transport belt configured to transport the recording medium on which the recording is to be performed by the recording unit; a cleaning unit configured to move to a contact position at which the cleaning unit is in contact with the medium transport belt or a non-contact position at which the cleaning unit is not in contact with the medium transport belt, and to perform a cleaning operation on the medium transport belt when the cleaning unit is positioned at the contact position; a discrimination section configured to discriminate a surface state of the medium transport belt; and a control section configured to cause the cleaning unit to execute the cleaning operation according to the surface state of the medium transport belt discriminated by the discrimination section.Type: ApplicationFiled: May 30, 2023Publication date: November 30, 2023Inventors: Yoshikazu KOIKE, Takamasa IKAGAWA, Shintaro KOMURO, Hirohisa ADACHI, Masaki MIYAZAWA
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Publication number: 20220371346Abstract: A recording apparatus includes a recording unit configured to perform recording, an operation panel including an operation unit and a button unit configured to perform an input operation, an ultraviolet irradiation unit configured to directly irradiate the operation panel with ultraviolet rays, a sensor configured to detect presence of a person; and a controller, wherein the controller causes the ultraviolet irradiation unit to emit ultraviolet rays when the sensor detects presence of a person.Type: ApplicationFiled: May 19, 2022Publication date: November 24, 2022Inventors: Shota SAKAGAMI, Yoshikazu KOIKE
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Patent number: 10882341Abstract: A recording apparatus includes a recording head that performs recording on a medium, a transport belt that has an clinging surface that cling the medium, and transports the medium to a position facing the recording head, a first charging unit that is in contact with the transport belt to frictionally charge the clinging surface, and a second charging unit that applies a voltage to the transport belt to charge the clinging surface, in which a control unit, which switches between charging of the clinging surface by the first charging unit and charging of the clinging surface by the second charging unit, switches between the charging of the clinging surface by the first charging unit and the charging of the clinging surface by the second charging unit, according to a state of a surface of the medium, which is in contact with the clinging surface.Type: GrantFiled: June 26, 2019Date of Patent: January 5, 2021Assignee: Seiko Epson CorporationInventors: Takamasa Ikagawa, Yuichi Segawa, Akinori Muromachi, Yoshikazu Koike
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Patent number: 10618324Abstract: A printing apparatus includes a plurality of belt rollers that rotate, a direction in which a rotation axis of each belt rollers extends being a width direction that intersects a transport direction of a medium; a transporting belt that, while wound across the plurality of belt rollers, rotate to transport the medium in the transport direction; a print head that performs printing on the medium transported by the transporting belt; and a control unit that rotates the transporting belt while in a state in which an unrotated state of the transporting belt has continued for a predetermined period. When a rotation position of the transporting belt after application of power and before rotating the transporting belt is referred to as an initial rotation position, in a case in which a rotation of the transporting belt is to be stopped, the control unit stops the transporting belt at a rotation position that is different from the initial rotation position.Type: GrantFiled: September 26, 2018Date of Patent: April 14, 2020Assignee: Seiko Epson CorporationInventors: Yoshikazu Koike, Satoshi Chiba, Masanori Nakata
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Publication number: 20200001624Abstract: A recording apparatus includes a recording head that performs recording on a medium, a transport belt that has an clinging surface that cling the medium, and transports the medium to a position facing the recording head, a first charging unit that is in contact with the transport belt to frictionally charge the clinging surface, and a second charging unit that applies a voltage to the transport belt to charge the clinging surface, in which a control unit, which switches between charging of the clinging surface by the first charging unit and charging of the clinging surface by the second charging unit, switches between the charging of the clinging surface by the first charging unit and the charging of the clinging surface by the second charging unit, according to a state of a surface of the medium, which is in contact with the clinging surface.Type: ApplicationFiled: June 26, 2019Publication date: January 2, 2020Inventors: Takamasa IKAGAWA, Yuichi SEGAWA, Akinori MUROMACHI, Yoshikazu KOIKE
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Publication number: 20190023035Abstract: A printing apparatus includes a plurality of belt rollers that rotate, a direction in which a rotation axis of each belt rollers extends being a width direction that intersects a transport direction of a medium; a transporting belt that, while wound across the plurality of belt rollers, rotate to transport the medium in the transport direction; a print head that performs printing on the medium transported by the transporting belt; and a control unit that rotates the transporting belt while in a state in which an unrotated state of the transporting belt has continued for a predetermined period. When a rotation position of the transporting belt after application of power and before rotating the transporting belt is referred to as an initial rotation position, in a case in which a rotation of the transporting belt is to be stopped, the control unit stops the transporting belt at a rotation position that is different from the initial rotation position.Type: ApplicationFiled: September 26, 2018Publication date: January 24, 2019Inventors: Yoshikazu KOIKE, Satoshi CHIBA, Masanori NAKATA
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Patent number: 9962961Abstract: A printing apparatus includes a transport belt that transports a sheet, a charging roller that supplies an electric charge to the transport belt, a print head that causes ink to be attached to a printing surface of the sheet electrostatically adsorbed on the transport belt, a charge eliminating unit that is displaceable between a charge elimination position and a retreated position and that eliminates the electric charge from the printing surface by coming in contact with the printing surface of the sheet, and a charge elimination control device that controls the position of the charge eliminating unit.Type: GrantFiled: February 22, 2016Date of Patent: May 8, 2018Assignee: Seiko Epson CorporationInventors: Satoshi Chiba, Yoshikazu Koike, Kazunori Mori
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Patent number: 9919530Abstract: A printing apparatus includes a transport belt, a print head, a static eliminating section, and a wiping section. The transport belt electrostatically adsorbs a medium on an outer surface thereof and transports the medium in a transport direction.Type: GrantFiled: November 17, 2016Date of Patent: March 20, 2018Assignee: Seiko Epson CorporationInventors: Nobuyuki Mizushima, Satoshi Chiba, Yoshikazu Koike
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Publication number: 20170203586Abstract: A printing apparatus including a plurality of belt rollers that rotate, a direction in which a rotation axis of each belt rollers extends being a width direction that intersects a transport direction of a medium; a transporting belt that, while wound across the plurality of belt rollers, rotate to transport the medium in the transport direction; a print head that performs printing on the medium transported by the transporting belt; and a control unit that rotates the transporting belt when a predetermined condition, which is satisfied in a case in which an unrotated state of the transporting belt continues, is satisfied.Type: ApplicationFiled: January 3, 2017Publication date: July 20, 2017Inventors: Yoshikazu KOIKE, Satoshi CHIBA, Masanori NAKATA
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Publication number: 20170151788Abstract: A printing apparatus includes a transport belt, a print head, a static eliminating section, and a wiping section. The transport belt electrostatically adsorbs a medium on an outer surface thereof and transports the medium in a transport direction.Type: ApplicationFiled: November 17, 2016Publication date: June 1, 2017Inventors: Nobuyuki MIZUSHIMA, Satoshi CHIBA, Yoshikazu KOIKE
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Patent number: 9527316Abstract: In a printing apparatus, an end of a destaticization section in a definition direction is positioned further on an outer side than an end of a transport belt in the definition direction. In addition, the printing apparatus is provided with an operation mechanism section that changes a location of the destaticization section that comes into contact with a sheet of paper, which is electrostatically adsorbed to the transport belt, by operating the destaticization section.Type: GrantFiled: February 23, 2016Date of Patent: December 27, 2016Assignee: Seiko Epson CorporationInventors: Kazunori Mori, Satoshi Chiba, Yoshikazu Koike
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Publication number: 20160243854Abstract: A printing apparatus includes a transport belt that transports a sheet, a charging roller that supplies an electric charge to the transport belt, a print head that causes ink to be attached to a printing surface of the sheet electrostatically adsorbed on the transport belt, a charge eliminating unit that is displaceable between a charge elimination position and a retreated position and that eliminates the electric charge from the printing surface by coming in contact with the printing surface of the sheet, and a charge elimination control device that controls the position of the charge eliminating unit.Type: ApplicationFiled: February 22, 2016Publication date: August 25, 2016Inventors: Satoshi CHIBA, Yoshikazu KOIKE, Kazunori MORI
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Publication number: 20160246244Abstract: In a printing apparatus, an end of a destaticization section in a definition direction is positioned further on an outer side than an end of a transport belt in the definition direction. In addition, the printing apparatus is provided with an operation mechanism section that changes a location of the destaticization section that comes into contact with a sheet of paper, which is electrostatically adsorbed to the transport belt, by operating the destaticization section.Type: ApplicationFiled: February 23, 2016Publication date: August 25, 2016Inventors: Kazunori MORI, Satoshi CHIBA, Yoshikazu KOIKE
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Patent number: 7810923Abstract: In an ink jet printer, a plurality of transport belts are disposed at a predetermined interval in a direction intersecting a transport direction of a printing medium, the printing medium is absorbed on the transport belts to be transported, and an ink jet head ejects an ink droplet on the printing medium transported by the transport belts to perform a printing operation, and a support member that gradually lifts the end portions of the transported printing medium in the direction intersecting the transport direction up to the height of circumferential surfaces of the transport belts is disposed between the plurality of transport belts and below the circumferential surfaces of the transport belts.Type: GrantFiled: December 18, 2007Date of Patent: October 12, 2010Assignee: Seiko Epson CorporationInventor: Yoshikazu Koike
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Publication number: 20090251522Abstract: There is provided a target transport device including a support member having a support surface capable of supporting a target that is transported toward a downstream side from an upstream side, suction openings of suction holes capable of generating a negative pressure when the suction holes are suctioned being formed on the support surface, a heater for heating the support member, and a temperature adjusting unit for adjusting a temperature of the target such that a temperature difference generated in the target due to uneven distribution of the suction openings that relatively become a low temperature in the support member when heat from the heater is applied to the target via the support surface of the support member is restrained.Type: ApplicationFiled: April 1, 2009Publication date: October 8, 2009Applicant: SEIKO EPSON CORPORATIONInventor: Yoshikazu KOIKE
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Patent number: 7559617Abstract: A printer for printing on a medium on an endless belt by printer heads includes: a generator generating printing data for each printer head; a detector detecting time-series data for the meandering of the medium; a generator generating correction data preventing disorder of a printed image due to the meandering; and a controller operating each printer head according to the correction and printing data, wherein the correction-data generator selects a specific difference between factors in the time when the time-series and predetermined time-series data are related and newly generates correction data corresponding to the selected factor, a replacement section replaces a factor in the time corresponding to the specific factor of the reference time-series data with the specific factor, and the time-series-data detector has a stop stopping detection of the time-series data when the absolute change value of a physical value influencing meandering is a predetermined value or less.Type: GrantFiled: September 20, 2007Date of Patent: July 14, 2009Assignee: Seiko Epson CorporationInventor: Yoshikazu Koike
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Patent number: 7552679Abstract: A printer ejects ink droplets continuously onto the left edge of an endless belt while the endless belt is rotating, stops the endless belt, detects the positions of the ink droplets on the endless belt, and thereby detects meandering of printing paper (Step S102). This makes it possible to prevent distortion of printed images caused by meandering of the printing paper based on the detected meandering, allowing information to be printed on an entire printing surface of the printing paper unlike, for example, a conventional method which prints register marks on printing paper, checks for meandering of the register marks, and thereby detects meandering of the printing paper.Type: GrantFiled: March 17, 2005Date of Patent: June 30, 2009Assignee: Seiko Epson CorporationInventor: Yoshikazu Koike
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Patent number: 7552991Abstract: A printer for printing on a medium on an endless belt by printer heads includes: a generator generating printing data for each printer head; a detector detecting time-series data for the meandering of the medium; a generator generating correction data preventing disorder of a printed image due to the meandering; and a controller operating each printer head according to the correction and printing data, wherein the correction-data generator selects a specific difference between factors in the time when the time-series and predetermined time-series data are related and newly generates correction data corresponding to the selected factor, wherein a replacement section replaces a factor in the time corresponding to the specific factor of the reference time-series data with the specific factor, and the time-series-data detection section detects the time-series data when power is supplied to the printer.Type: GrantFiled: September 20, 2007Date of Patent: June 30, 2009Assignee: Seiko Epson CorporationInventor: Yoshikazu Koike
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Publication number: 20080266372Abstract: An ink-jet printer includes a transporting unit that includes a plurality of transporting belts for transporting a print medium disposed at predetermined intervals in the width direction of the print medium; a first ink-jet head that discharges ink droplets to the print medium disposed on the transporting belts, the centerline of the printing area of the first ink-jet head in the width direction of the print medium corresponding to that of the transporting force of the transporting belts in the width direction of the print medium; a second ink-jet head disposed in series of the first ink-jet head in a direction in which the print medium is transported, the centerline of the printing area of the second ink-jet head in the width direction of the print medium corresponding to that of the printing area of the first ink-jet head in the width direction of the print medium; and a print-medium guide that adjusts the position of the centerline of the print medium in the width direction thereof such that the centerlineType: ApplicationFiled: January 3, 2008Publication date: October 30, 2008Applicant: Seiko Epson CorporationInventor: Yoshikazu KOIKE
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Publication number: 20080239054Abstract: A printer includes a transporting belt, a liquid ejecting head, and a negative pressure generator. The transporting belt transports a printing medium while electrostatically attracting the printing medium. The liquid ejecting head ejects liquid droplets onto the printing medium transported by the transporting belt and thereby performs printing. The negative pressure generator is in contact with the inner surface of the transporting belt and supports the transporting belt. The negative pressure generator has a suction opening for generating negative pressure formed in a contact surface thereof in contact with the transporting belt. The transporting belt is a substantially airtight member.Type: ApplicationFiled: April 1, 2008Publication date: October 2, 2008Applicant: SEIKO EPSON CORPORATIONInventor: Yoshikazu KOIKE