Patents by Inventor Noritaka MITSUO
Noritaka MITSUO 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: 10875309Abstract: A liquid ejecting apparatus includes a liquid ejecting portion configured to eject a first liquid from a nozzle, a liquid receiving portion configured to receive, in a state where a second liquid is accommodated in the liquid receiving portion, for a purpose of maintenance of the liquid ejecting portion, the first liquid discharged from the nozzle, a maintenance portion that maintains a liquid surface of a liquid accommodated in the liquid receiving portion at an upper limit position, and a discharge portion configured to discharge, from a discharge port open to the liquid receiving portion, the liquid accommodated in the liquid receiving portion. The discharge port is positioned below the upper limit position.Type: GrantFiled: August 28, 2019Date of Patent: December 29, 2020Assignee: Seiko Epson CorporationInventors: Toshio Arimura, Yuji Kanazawa, Masaaki Ando, Noritaka Mitsuo
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Patent number: 10717283Abstract: A cap device is designed to form a space surrounding an opening of a nozzle of a liquid ejecting head when the cap device is in contact with the liquid ejecting head including the nozzle for ejecting a liquid, and includes a moisturizing chamber to which a moisturizing fluid for moisturizing the above space is supplied, and a partition wall having gas permeability and configured to partition the space and the moisturizing chamber, where part of the partition wall is formed of a flexible portion.Type: GrantFiled: August 23, 2018Date of Patent: July 21, 2020Assignee: Seiko Epson CorporationInventors: Kazutoshi Shimizu, Toshio Nakata, Ryoji Fujimori, Shuhei Harada, Noritaka Mitsuo
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Publication number: 20200070521Abstract: A liquid ejecting apparatus includes a liquid ejecting portion configured to eject a first liquid from a nozzle, a liquid receiving portion configured to receive, in a state where a second liquid is accommodated in the liquid receiving portion, for a purpose of maintenance of the liquid ejecting portion, the first liquid discharged from the nozzle, a maintenance portion that maintains a liquid surface of a liquid accommodated in the liquid receiving portion at an upper limit position, and a discharge portion configured to discharge, from a discharge port open to the liquid receiving portion, the liquid accommodated in the liquid receiving portion. The discharge port is positioned below the upper limit position.Type: ApplicationFiled: August 28, 2019Publication date: March 5, 2020Inventors: Toshio ARIMURA, Yuji KANAZAWA, Masaaki ANDO, Noritaka MITSUO
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Patent number: 10252532Abstract: The printing apparatus includes a printing head that includes a plurality of nozzles including a first nozzle, a discharging controller that is capable of controlling discharging of liquid from the plurality of nozzles, a transportation section that relatively moves a recording medium and the printing head by transporting at least either or both of the recording medium and the printing head, and a suction section that includes a suction port which is positioned at an upstream side or a downstream side of the printing head in a relative moving direction of the printing head and the recording medium. The discharging controller controls the first nozzle to discharge mist type ink droplets at a timing of not discharging ink droplets for forming image from the first nozzle, and the suction section suctions the mist type ink droplets discharged from the first nozzle through the suction port.Type: GrantFiled: March 18, 2016Date of Patent: April 9, 2019Assignee: Seiko Epson CorporationInventors: Noritaka Mitsuo, Kenji Otokita
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Publication number: 20190061353Abstract: A cap device is designed to form a space surrounding an opening of a nozzle of a liquid ejecting head when the cap device is in contact with the liquid ejecting head including the nozzle for ejecting a liquid, and includes a moisturizing chamber to which a moisturizing fluid for moisturizing the above space is supplied, and a partition wall having gas permeability and configured to partition the space and the moisturizing chamber, where part of the partition wall is formed of a flexible portion.Type: ApplicationFiled: August 23, 2018Publication date: February 28, 2019Inventors: Kazutoshi SHIMIZU, Toshio NAKATA, Ryoji FUJIMORI, Shuhei HARADA, Noritaka MITSUO
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Patent number: 10112406Abstract: A gear pump includes a pump casing and a gear assembly. The gear assembly includes a driving gear, a driven gear, a driving gear shaft, a driven gear shaft, and a bearing frame. The bearing frame includes a frame main body, a pair of driving side bearing portions, and a pair of driven side bearing portions. The frame main body has a pair of bearing support portions, in which the driving side bearing portion and the driven side bearing portion are provided, and a connecting portion which connects the bearing support portions. The bearing support portions and the connecting portion are integrated together as a one-piece member.Type: GrantFiled: August 8, 2017Date of Patent: October 30, 2018Assignee: Seiko Epson CorporationInventors: Masaaki Ando, Noritaka Mitsuo, Norihiro Maruyama
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Patent number: 10022977Abstract: To reduce frictional heat generated between a rotation shaft and a bearing portion in a gear pump in which the rotation shaft having a gear mounted thereon is received by the bearing portion and an image recording apparatus having the gear pump. Provided is a gear pump which has a rotation shaft, a bearing portion which receives the rotation shaft, and a gear which is mounted on the rotation shaft and rotates with the rotation shaft, in such a manner that the gear feeds liquid. Furthermore, at least either a concave portion or a convex portion is provided in at least either the rotation shaft or the bearing portion.Type: GrantFiled: February 24, 2015Date of Patent: July 17, 2018Assignee: SEIKO EPSON CORPORATIONInventors: Noritaka Mitsuo, Masaaki Ando
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Patent number: 9962965Abstract: A printing apparatus includes an discharging head which discharges liquid on a printing medium mounted on an endless belt; a transport unit which transports the printing medium in a transport direction; a medium press portion which is provided on an upstream side of the discharging head in the transport direction and includes a medium pressing unit which compresses the printing medium; and a control portion which controls the medium press portion.Type: GrantFiled: January 17, 2017Date of Patent: May 8, 2018Assignee: Seiko Epson CorporationInventor: Noritaka Mitsuo
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Publication number: 20180117916Abstract: The printing apparatus includes a printing head that includes a plurality of nozzles including a first nozzle, a discharging controller that is capable of controlling discharging of liquid from the plurality of nozzles, a transportation section that relatively moves a recording medium and the printing head by transporting at least either or both of the recording medium and the printing head, and a suction section that includes a suction port which is positioned at an upstream side or a downstream side of the printing head in a relative moving direction of the printing head and the recording medium. The discharging controller controls the first nozzle to discharge mist type ink droplets at a timing of not discharging ink droplets for forming image from the first nozzle, and the suction section suctions the mist type ink droplets discharged from the first nozzle through the suction port.Type: ApplicationFiled: March 18, 2016Publication date: May 3, 2018Inventors: Noritaka MITSUO, Kenji OTOKITA
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Patent number: 9956794Abstract: A printing apparatus includes a discharging head which discharges liquid on a printing medium mounted on an endless belt; a medium transport portion as a transport unit which transports the printing medium; an input device as an input unit to which printing condition is input; and a fluff cutter portion which is provided on an upstream side of the discharging head in the transport direction and which cuts fluff of the printing medium in a predetermined height according to the printing condition.Type: GrantFiled: January 5, 2017Date of Patent: May 1, 2018Assignee: Seiko Epson CorporationInventor: Noritaka Mitsuo
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Publication number: 20170334212Abstract: A gear pump includes a pump casing and a gear assembly. The gear assembly includes a driving gear, a driven gear, a driving gear shaft, a driven gear shaft, and a bearing frame. The bearing frame includes a frame main body, a pair of driving side bearing portions, and a pair of driven side bearing portions. The frame main body has a pair of bearing support potions, in which the driving side bearing portion and the driven side bearing portion are provided, and a connecting portion which connects the bearing support portions. The bearing support portions and the connecting portion are integrated together as a one-piece member.Type: ApplicationFiled: August 8, 2017Publication date: November 23, 2017Inventors: Masaaki ANDO, Noritaka MITSUO, Norihiro MARUYAMA
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Patent number: 9751321Abstract: A gear pump for transporting a fluid includes a pump casing; and a gear assembly which is accommodated in the pump casing. The gear assembly includes a driving gear, a driven gear that mashes with the driving gear, a driving gear shaft to which the driving gear is attached, a driven gear shaft to which the driven gear is attached, and a bearing frame that rotatably supports the driving gear shaft and rotatably supports the driven gear shaft.Type: GrantFiled: April 11, 2016Date of Patent: September 5, 2017Assignee: Seiko Epson CorporationInventors: Masaaki Ando, Noritaka Mitsuo, Norihiro Maruyama
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Publication number: 20170210150Abstract: A printing apparatus includes an discharging head which discharges liquid on a printing medium mounted on an endless belt; a transport unit which transports the printing medium in a transport direction; a medium press portion which is provided on an upstream side of the discharging head in the transport direction and includes a medium pressing unit which compresses the printing medium; and a control portion which controls the medium press portion.Type: ApplicationFiled: January 17, 2017Publication date: July 27, 2017Inventor: Noritaka MITSUO
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Publication number: 20170197441Abstract: A printing apparatus includes a discharging head which discharges liquid on a printing medium mounted on an endless belt; a medium transport portion as a transport unit which transports the printing medium; an input device as an input unit to which printing condition is input; and a fluff cutter portion which is provided on an upstream side of the discharging head in the transport direction and which cuts fluff of the printing medium in a predetermined height according to the printing condition.Type: ApplicationFiled: January 5, 2017Publication date: July 13, 2017Inventor: Noritaka MITSUO
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Publication number: 20170015106Abstract: To reduce frictional heat generated between a rotation shaft and a bearing portion in a gear pump in which the rotation shaft having a gear mounted thereon is received by the bearing portion and an image recording apparatus having the gear pump. Provided is a gear pump which has a rotation shaft, a bearing portion which receives the rotation shaft, and a gear which is mounted on the rotation shaft and rotates with the rotation shaft, in such a manner that the gear feeds liquid. Furthermore, at least either a concave portion or a convex portion is provided in at least either the rotation shaft or the bearing portion.Type: ApplicationFiled: February 24, 2015Publication date: January 19, 2017Applicant: SEIKO EPSON CORPORATIONInventors: Noritaka MITSUO, Masaaki ANDO
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Publication number: 20160303864Abstract: A gear pump for transporting a fluid includes a pump casing; and a gear assembly which is accommodated in the pump casing. The gear assembly includes a driving gear, a driven gear that mashes with the driving gear, a driving gear shaft to which the driving gear is attached, a driven gear shaft to which the driven gear is attached, and a bearing frame that rotatably supports the driving gear shaft and rotatably supports the driven gear shaft.Type: ApplicationFiled: April 11, 2016Publication date: October 20, 2016Inventors: Masaaki ANDO, Noritaka MITSUO, Norihiro MARUYAMA
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Patent number: 9180672Abstract: There is provided a liquid ejecting apparatus including: a head that discharges liquid having a component which settles down; a storage section that stores the liquid; a supply path that supplies the liquid from the storage section to the head through a path which extends in a horizontal direction; and an acceleration section that accelerates a part of the supply path which includes at least the path with acceleration having a downward acceleration component in the vertical direction. The supply path may include a upstream part which is connected to the storage section, a first connection part which is connected to the upstream part, a horizontal part which is connected to the first connection part and which extends in the horizontal direction, a second connection part which is connected to the horizontal part, and a downstream part which is connected to the second connection part and the head.Type: GrantFiled: March 14, 2014Date of Patent: November 10, 2015Assignee: Seiko Epson CorporationInventor: Noritaka Mitsuo
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Patent number: 9139010Abstract: A liquid discharge apparatus includes a head configured and arranged to discharge a liquid including a sedimentary substance, and a liquid supply path configured and arranged to supply the liquid from a liquid tank where the liquid is retained to the head. The liquid supply path has a region with differences in elevation of a predetermined length or more in a vertical direction. The liquid supply path has at least one convex section formed by folding at each of one side and another side in a direction which intersects the vertical direction in the region.Type: GrantFiled: August 21, 2013Date of Patent: September 22, 2015Assignee: Seiko Epson CorporationInventors: Hiromichi Nakashima, Noritaka Mitsuo, Jun Shimazaki
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Patent number: 9139009Abstract: A liquid discharge apparatus includes a head configured and arranged to discharge a liquid including a sedimentary substance, and a liquid supply path for supplying the liquid from a liquid tank where the liquid is retained to the head. The liquid supply path has differences in elevation of a predetermined length or more in a vertical direction. The liquid supply path has a portion formed into a stepped shape and an angle formed by a width portion and a height portion in the portion formed into the stepped shape is 45 degrees or more and 90 degrees or less.Type: GrantFiled: August 21, 2013Date of Patent: September 22, 2015Assignee: Seiko Epson CorporationInventors: Hiromichi Nakashima, Jun Shimazaki, Noritaka Mitsuo
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Patent number: 9132646Abstract: A liquid dispensing apparatus includes a head that dispenses a liquid containing a sedimentary substance, a liquid tank for storing the liquid, a liquid supply path through which the liquid is supplied from the ink tank to the head via a section having a level difference larger than a predetermined distance in a vertical direction, the section including one or more bent portions including a bent portion of a first type where a downward flow of the liquid is turned to an upward flow, and a bent shape conversion unit configured to change a shape of the section with the level difference, so as to convert the bent portion of the first type in the section with the level difference before the shape conversion into a bent portion of a second type where an upward flow of the liquid is turned to a downward flow.Type: GrantFiled: February 26, 2014Date of Patent: September 15, 2015Assignee: Seiko Epson CorporationInventor: Noritaka Mitsuo