Patents by Inventor Tetsuji YATSUNAMI
Tetsuji YATSUNAMI 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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Patent number: 11945238Abstract: A liquid ejecting device includes: a printing unit including a liquid ejecting head configured to eject a liquid to a medium and a head holder configured to form an air cooling path, and a cooling mechanism configured to cause air in the air cooling path to flow therethrough to air-cool the liquid ejecting head, wherein the printing unit is provided so as to be movable with respect to a transport path along which the medium is transported, the cooling mechanism includes a first air hole and a second air hole that are configured to be coupled to the air cooling path, and the air cooling path is coupled to one of the first air hole and the second air hole corresponding to a position of the printing unit.Type: GrantFiled: December 22, 2021Date of Patent: April 2, 2024Assignee: Seiko Epson CorporationInventors: Yoshihisa Saka, Tetsuji Yatsunami, Yoshikane Tsuchihashi, Yoshinori Yanagisawa, Kohei Usuda
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Patent number: 11659114Abstract: A recording device includes a recording unit configured to perform recording on a recording target medium, a first conveyance path that is a conveyance path of the recording target medium including an opposite position that faces the recording unit, and conveyance of the recording target medium in a first direction, a second conveyance path being coupled to the first conveyance path at a position downstream of the recording unit in the first direction, the second conveyance path being coupled to the first conveyance path also at a position upstream of the recording unit in the first direction and configured for conveyance of the recording target medium to the first conveyance path with a surface of the recording target medium inverted, and an insertion port configured to enable insertion of a recording target medium as an insertion material to the second conveyance path from outside.Type: GrantFiled: May 10, 2021Date of Patent: May 23, 2023Assignee: Seiko Epson CorporationInventors: Shingo Waki, Tetsuji Yatsunami
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Patent number: 11420454Abstract: A control section of a recording apparatus is configured to execute control of overlapping transportation in which a preceding medium and a following medium are transported in a state in which a rear end region of the preceding medium and a leading end region of the following medium overlap at least in a partial section in an upper transport route, and determines an overlapping dimension Lk that is a dimension, by which the rear end region of the preceding medium and the leading end region of the following medium overlap, in accordance with a route dimension Ld from a third feed roller pair to an edge of an introducing port in a second direction, when executing the control of the overlapping transportation.Type: GrantFiled: April 21, 2021Date of Patent: August 23, 2022Assignee: Seiko Epson CorporationInventors: Tetsuji Yatsunami, Shingo Waki
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Publication number: 20220203734Abstract: A liquid ejecting device includes: a printing unit including a liquid ejecting head configured to eject a liquid to a medium and a head holder configured to form an air cooling path, and a cooling mechanism configured to cause air in the air cooling path to flow therethrough to air-cool the liquid ejecting head, wherein the printing unit is provided so as to be movable with respect to a transport path along which the medium is transported, the cooling mechanism includes a first air hole and a second air hole that are configured to be coupled to the air cooling path, and the air cooling path is coupled to one of the first air hole and the second air hole corresponding to a position of the printing unit.Type: ApplicationFiled: December 22, 2021Publication date: June 30, 2022Inventors: Yoshihisa SAKA, Tetsuji YATSUNAMI, Yoshikane TSUCHIHASHI, Yoshinori YANAGISAWA, Kohei USUDA
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Publication number: 20220111642Abstract: A liquid ejecting apparatus includes: a liquid ejecting head that includes a nozzle surface on which a nozzle is open and that ejects a liquid through the nozzle; a housing that accommodates the liquid ejecting head; a moving mechanism that moves the liquid ejecting head relative to the housing in a moving direction intersecting the nozzle surface; and a duct in which a fluid flows, in which the duct includes a first coupling section coupled to the housing and a second coupling section coupled to the liquid ejecting head and is configured to expand and contract in the moving direction.Type: ApplicationFiled: October 11, 2021Publication date: April 14, 2022Inventors: Tetsuji YATSUNAMI, Yuji MISAWA, Toshihiro IMAE
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Publication number: 20210354940Abstract: A recording device includes a recording unit configured to perform recording on a recording target medium, a first conveyance path that is a conveyance path of the recording target medium including an opposite position that faces the recording unit, and conveyance of the recording target medium in a first direction, a second conveyance path being coupled to the first conveyance path at a position downstream of the recording unit in the first direction, the second conveyance path being coupled to the first conveyance path also at a position upstream of the recording unit in the first direction and configured for conveyance of the recording target medium to the first conveyance path with a surface of the recording target medium inverted, and an insertion port configured to enable insertion of a recording target medium as an insertion material to the second conveyance path from outside.Type: ApplicationFiled: May 10, 2021Publication date: November 18, 2021Inventors: Shingo WAKI, Tetsuji YATSUNAMI
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Publication number: 20210331498Abstract: A control section of a recording apparatus is configured to execute control of overlapping transportation in which a preceding medium and a following medium are transported in a state in which a rear end region of the preceding medium and a leading end region of the following medium overlap at least in a partial section in an upper transport route, and determines an overlapping dimension Lk that is a dimension, by which the rear end region of the preceding medium and the leading end region of the following medium overlap, in accordance with a route dimension Ld from a third feed roller pair to an edge of an introducing port in a second direction, when executing the control of the overlapping transportation.Type: ApplicationFiled: April 21, 2021Publication date: October 28, 2021Inventors: Tetsuji YATSUNAMI, Shingo WAKI
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Patent number: 10979587Abstract: A recording apparatus includes a reverse path for reversing a surface of a medium, a second medium transport path for guiding the medium on which recording has been performed to the reverse path, a third medium transport path which is positioned vertically below the second medium transport path and guides the medium on which recording has been performed to the reverse path, in which a first path forming portion that forms the reverse path, a second path forming portion that forms a part of an upper side of the second medium transport path, and a third path forming portion that forms a part of an upper side of the third medium transport path are constituted to be attachable and detachable as a unit body, and a part of the second medium transport path and a part of the third medium transport path are exposed by removing the unit body.Type: GrantFiled: January 27, 2020Date of Patent: April 13, 2021Assignee: Seiko Epson CorporationInventor: Tetsuji Yatsunami
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Publication number: 20200244829Abstract: A recording apparatus includes a reverse path for reversing a surface of a medium, a second medium transport path for guiding the medium on which recording has been performed to the reverse path, a third medium transport path which is positioned vertically below the second medium transport path and guides the medium on which recording has been performed to the reverse path, in which a first path forming portion that forms the reverse path, a second path forming portion that forms a part of an upper side of the second medium transport path, and a third path forming portion that forms a part of an upper side of the third medium transport path are constituted to be attachable and detachable as a unit body, and a part of the second medium transport path and a part of the third medium transport path are exposed by removing the unit body.Type: ApplicationFiled: January 27, 2020Publication date: July 30, 2020Inventor: Tetsuji YATSUNAMI
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Patent number: 10160234Abstract: A recording apparatus which is capable of suppressing or avoiding a concern on a defect such as a paper jam, deterioration of recording quality, or the like at the time of performing an overlapping transportation is provided.Type: GrantFiled: March 1, 2018Date of Patent: December 25, 2018Assignee: Seiko Epson CorporationInventors: Shintaro Komuro, Tetsuji Yatsunami
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Patent number: 10155402Abstract: There is provided a printing device which can reduce the frequency at which a consecutive overlap-feeding operation is performed in a state where an overlap error in which a preceding medium and a following medium are overlapped in reverse order is not corrected.Type: GrantFiled: March 21, 2017Date of Patent: December 18, 2018Assignee: Seiko Epson CorporationInventors: Tetsuji Yatsunami, Yu Shinagawa, Yoshikane Tsuchihashi
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Publication number: 20180272755Abstract: A recording apparatus which is capable of suppressing or avoiding a concern on a defect such as a paper jam, deterioration of recording quality, or the like at the time of performing an overlapping transportation is provided.Type: ApplicationFiled: March 1, 2018Publication date: September 27, 2018Inventors: Shintaro KOMURO, Tetsuji YATSUNAMI
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Patent number: 10029492Abstract: There is provided a printing device which can suppress a decrease in printing quality with respect to a following medium which is generated when performing a consecutive overlap-feeding operation of transporting a preceding medium and a following medium together to a printing start position of the following medium in a state where the preceding medium and the following medium partially overlap each other.Type: GrantFiled: March 22, 2017Date of Patent: July 24, 2018Assignee: Seiko Epson CorporationInventor: Tetsuji Yatsunami
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Patent number: 9956793Abstract: A printing device includes a printing unit, a pair of transporting rollers (a pair of rollers) that is disposed right before the printing unit and that transport a medium to the printing unit, and a transportation direction changing mechanism that is disposed on an upstream side of the pair of transporting rollers and that changes a transportation direction of the medium before the medium is nipped by the pair of transporting rollers. The transportation direction changing mechanism changes a transportation direction of a following medium such that a leading end portion of the following medium overlaps a preceding medium when the printing unit performs printing in a state where the preceding medium is nipped by the pair of transporting rollers.Type: GrantFiled: March 8, 2017Date of Patent: May 1, 2018Assignee: Seiko Epson CorporationInventors: Tetsuji Yatsunami, Takashi Matsuki, Kazuhiro Nishiyama
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Publication number: 20170282609Abstract: There is provided a printing device which can suppress a decrease in printing quality with respect to a following medium which is generated when performing a consecutive overlap-feeding operation of transporting a preceding medium and a following medium together to a printing start position of the following medium in a state where the preceding medium and the following medium partially overlap each other.Type: ApplicationFiled: March 22, 2017Publication date: October 5, 2017Inventor: Tetsuji YATSUNAMI
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Publication number: 20170282606Abstract: There is provided a printing device which can reduce the frequency at which a consecutive overlap-feeding operation is performed in a state where an overlap error in which a preceding medium and a following medium are overlapped in reverse order is not corrected.Type: ApplicationFiled: March 21, 2017Publication date: October 5, 2017Inventors: Tetsuji YATSUNAMI, Yu SHINAGAWA, Yoshikane TSUCHIHASHI
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Publication number: 20170274677Abstract: A printing device includes a printing unit, a pair of transporting rollers (a pair of rollers) that is disposed right before the printing unit and that transport a medium to the printing unit, and a transportation direction changing mechanism that is disposed on an upstream side of the pair of transporting rollers and that changes a transportation direction of the medium before the medium is nipped by the pair of transporting rollers. The transportation direction changing mechanism changes a transportation direction of a following medium such that a leading end portion of the following medium overlaps a preceding medium when the printing unit performs printing in a state where the preceding medium is nipped by the pair of transporting rollers.Type: ApplicationFiled: March 8, 2017Publication date: September 28, 2017Inventors: Tetsuji YATSUNAMI, Takashi MATSUKI, Kazuhiro NISHIYAMA
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Patent number: 9682561Abstract: A recording apparatus includes: a carriage that has a housing in which a recording head is provided; a guide member that guides the carriage; a gap adjusting unit that adjust a gap between the medium and the recording head; and a cap member by which the recording head is capped. The gap adjusting unit includes a sliding member that slides over the guide member, a cam member that is interposed between a part of the housing and the sliding member and has a shape with which the housing is caused to shift in the direction in which the gap is changed, by moving in the first direction relative to the housing and the sliding member, and a pressing member that presses the cam member to the housing of the carriage in a second direction intersecting with the first direction and the direction in which the gap is changed.Type: GrantFiled: October 2, 2015Date of Patent: June 20, 2017Assignee: Seiko Epson CorporationInventors: Kazutoshi Matsuzaki, Kazuhiro Nishiyama, Tetsuji Yatsunami
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Publication number: 20160096385Abstract: A recording apparatus includes: a carriage that has a housing in which a recording head is provided; a guide member that guides the carriage; a gap adjusting unit that adjust a gap between the medium and the recording head; and a cap member by which the recording head is capped. The gap adjusting unit includes a sliding member that slides over the guide member, a cam member that is interposed between a part of the housing and the sliding member and has a shape with which the housing is caused to shift in the direction in which the gap is changed, by moving in the first direction relative to the housing and the sliding member, and a pressing member that presses the cam member to the housing of the carriage in a second direction intersecting with the first direction and the direction in which the gap is changed.Type: ApplicationFiled: October 2, 2015Publication date: April 7, 2016Inventors: Kazutoshi MATSUZAKI, Kazuhiro NISHIYAMA, Tetsuji YATSUNAMI
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Liquid ejecting apparatus and method for detecting medium edge position in liquid ejecting apparatus
Patent number: 9085136Abstract: A liquid ejecting apparatus and a method for detecting a medium edge position are provided wherein the edge position of the medium can be comparatively more accurately detected even when the sensitivity of an optical sensor has changed due to fouling or the like.Type: GrantFiled: February 28, 2013Date of Patent: July 21, 2015Assignee: Seiko Epson CorporationInventor: Tetsuji Yatsunami