Patents by Inventor Ryoji Fujimori
Ryoji Fujimori 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: 20240116295Abstract: The liquid ejection apparatus includes an ejecting unit configured to eject liquid onto a medium to perform printing on the medium, a supply unit configured to supply the liquid to the ejecting unit, and a control unit, wherein the supply unit includes a mounting unit to and from which a storage unit configured to store the liquid is attachable and detachable, a supply flow path configured to couple the mounting unit and the ejecting unit, a branching flow path configured to branch off from the supply flow path at a branching position and to merge with the supply flow path at a merging position downstream of the branching position, and a pump configured to cause the liquid to flow from the merging position toward the branching position in the branching flow path, and the control unit performs a circulation operation that circulates the liquid in the supply flow path and the branching flow path, and is configured to perform an operation other than an operation of performing printing by ejecting the liquid fromType: ApplicationFiled: October 10, 2023Publication date: April 11, 2024Inventor: Ryoji FUJIMORI
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Publication number: 20230044713Abstract: A liquid ejecting apparatus includes a liquid ejecting portion, a strip member, and a supply portion capable of supplying a reaction liquid having a component that cures ink to the strip member, the strip member being provided so as to be able to set a receiving region that receives any one of ink and reaction liquid discharged as waste liquid from a nozzle of the liquid ejecting portion and a contact region that comes into contact with the liquid ejecting portion when any one of ink and reaction liquid is collected, and the supply portion supplies the reaction liquid to a supply region set in the strip member between the contact region and a position farthest from the contact region in the receiving region.Type: ApplicationFiled: August 2, 2022Publication date: February 9, 2023Inventors: Ryoji FUJIMORI, Jun HIGUCHI
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Patent number: 11007790Abstract: A liquid ejecting apparatus includes a liquid ejecting section from which liquid is ejected. A return passage has a first end connected to a supply passage at a first location and a second end connected to the supply passage at a second location. The second location is positioned closer to the liquid ejecting section than the first location. The return passage and the supply passage constitute a circulating passage. A pump can cause fluid to flow through the circulating passage. A replaceable filter unit is a portion of the return passage. A discharge passage through which the fluid is discharged to the outside is connected to the return passage. An inflow controller can suppress external fluid from entering the discharge passage.Type: GrantFiled: December 2, 2019Date of Patent: May 18, 2021Assignee: Seiko Epson CorporationInventors: Masato Murayama, Takeshi Yoshida, Kaoru Koike, Ryoji Fujimori
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Patent number: 10751999Abstract: A roll wiping member unit includes a long wiping member and a core. The long wiping member has a starting end and a terminating end at ends in a longitudinal direction and a wiping portion that is subjected to a tensile load at a position between the starting end and the terminating end. The long wiping member is configured to wipe a liquid ejecting head at the wiping portion. The long wiping member is wound on the core from the terminating end in a roll. The long wiping member has a weak portion having strength that does not withstand the tensile load at a position closer than the wiping portion to the terminating end.Type: GrantFiled: June 19, 2018Date of Patent: August 25, 2020Assignee: Seiko Epson CorporationInventors: Ryoji Fujimori, Toshio Nakata
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Patent number: 10744780Abstract: A printer has a recording head, a relay container from which ink is supplied to the recording head, and to which the ink is supplied from a terminal container, a pressurizing pump and a depressurizing pump for supplying the ink from the terminal container to the relay container, and a control unit. The control unit calculates an estimated consumption amount of the relay container based on the amount of the ink supplied from the relay container to the recording head, and consumed and the amount of the ink supplied from the terminal container to the relay container, and calculates the amount of the ink supplied from the terminal container to the relay container using the minimum value of tolerance of a supply amount of the depressurizing pump.Type: GrantFiled: September 1, 2017Date of Patent: August 18, 2020Assignee: Seiko Epson CorporationInventors: Shuichi Koganehira, Yasuhiko Kosugi, Tsuyoshi Hayashi, Toshihiro Shinbara, Kaoru Koike, Ryoji Fujimori
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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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Patent number: 10618307Abstract: A liquid ejecting apparatus includes a liquid flow path which communicates with a nozzle which ejects liquid; a vacuum degassing chamber for removing air bubbles from liquid by depressurizing a part of the liquid flow path; a gas flow path which communicates with the vacuum degassing chamber; a pressurizing chamber which communicates with the gas flow path; and a pump which communicates with the vacuum degassing chamber and the pressurizing chamber through the gas flow path, in which the pump is driven by a sequence selected from a plurality of sequences, and the plurality of sequences include a plurality of depressurizing sequences in which the vacuum degassing chamber is depressurized so that an average pressure of the vacuum degassing chamber becomes different, and a pressurizing sequence in which the pressurizing chamber is pressurized.Type: GrantFiled: January 9, 2018Date of Patent: April 14, 2020Assignee: Seiko Epson CorporationInventors: Daiki Tatsuta, Ryoji Fujimori, Kaoru Koike
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Publication number: 20200101756Abstract: A liquid ejecting apparatus includes a liquid ejecting section from which liquid is ejected. A return passage has a first end connected to a supply passage at a first location and a second end connected to the supply passage at a second location. The second location is positioned closer to the liquid ejecting section than the first location. The return passage and the supply passage constitute a circulating passage. A pump can cause fluid to flow through the circulating passage. A replaceable filter unit is a portion of the return passage. A discharge passage through which the fluid is discharged to the outside is connected to the return passage. An inflow controller can suppress external fluid from entering the discharge passage.Type: ApplicationFiled: December 2, 2019Publication date: April 2, 2020Inventors: Masato MURAYAMA, Takeshi YOSHIDA, Kaoru KOIKE, Ryoji FUJIMORI
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Patent number: 10518552Abstract: A liquid ejecting apparatus includes a liquid ejecting section from which liquid is ejected. A return passage has a first end connected to a supply passage at a first location and a second end connected to the supply passage at a second location. The second location is positioned closer to the liquid ejecting section than the first location. The return passage and the supply passage constitute a circulating passage. A pump can cause fluid to flow through the circulating passage. A replaceable filter unit is a portion of the return passage. A discharge passage through which the fluid is discharged to the outside is connected to the return passage. An inflow controller can suppress external fluid from entering the discharge passage.Type: GrantFiled: August 14, 2019Date of Patent: December 31, 2019Assignee: Seiko Epson CorporationInventors: Masato Murayama, Takeshi Yoshida, Kaoru Koike, Ryoji Fujimori
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Publication number: 20190366732Abstract: A liquid ejecting apparatus includes a liquid ejecting section from which liquid is ejected. A return passage has a first end connected to a supply passage at a first location and a second end connected to the supply passage at a second location. The second location is positioned closer to the liquid ejecting section than the first location. The return passage and the supply passage constitute a circulating passage. A pump can cause fluid to flow through the circulating passage. A replaceable filter unit is a portion of the return passage. A discharge passage through which the fluid is discharged to the outside is connected to the return passage. An inflow controller can suppress external fluid from entering the discharge passage.Type: ApplicationFiled: August 14, 2019Publication date: December 5, 2019Inventors: Masato Murayama, Takeshi Yoshida, Kaoru Koike, Ryoji Fujimori
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Patent number: 10486430Abstract: A liquid supplying device includes a first intermediate storage and a second intermediate storage, both of which can supply liquid to a liquid ejecting unit. In a case where a storage amount of one intermediate storage is a first set value, the depressurization of the inside of one intermediate storage is stopped. In a case where a storage amount of the other intermediate storage is a second set value that is smaller than the first set value, first supply control of supplying the liquid from one intermediate storage to the other liquid ejecting unit is performed. In a case where the storage amount of the other intermediate storage is the second set value, second supply control of supplying the liquid from one intermediate storage is performed.Type: GrantFiled: May 18, 2018Date of Patent: November 26, 2019Assignee: Seiko Epson CorporationInventors: Toshihiro Shinbara, Ryoji Fujimori, Kaoru Koike, Tsuyoshi Hayashi
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Patent number: 10464312Abstract: An electron-beam-curing resin or a photocurable resin not containing a photopolymerization initiator is cured by photoirradiation under an atmosphere equal to or lower than predetermined oxygen concentration for not causing oxygen inhibition to polymerization of photocurable resin or electron beam-curable resin, an ultraviolet ray in wavelength region corresponding to a light absorption characteristic of the photocurable resin or the electron beam-curable resin is irradiated on the photocurable resin or the electron beam-curable resin to polymerize the photocurable resin or the electron beam-curable resin. After an ultraviolet ray is irradiated on the photocurable resin or the electron beam-curable resin to polymerize at least a surface layer, an electron beam is irradiated on the photocurable resin or the electron beam-curable resin to polymerize a deep part, and the entire photocurable resin or the entire electron beam-curable resin is cured.Type: GrantFiled: January 18, 2017Date of Patent: November 5, 2019Assignee: IWASAKI ELECTRIC CO., LTD.Inventors: Shinobu Kinoshita, Ryoji Fujimori
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Patent number: 10464326Abstract: A liquid ejecting apparatus includes a liquid ejecting head having nozzles for ejecting a liquid, and an attachment section to which a maintenance unit to be used for maintenance of the liquid ejecting head is to be detachably attached. If the maintenance unit having a maintenance mechanism for performing the maintenance by driving force transmitted from the attachment section is a first unit and the maintenance unit having no maintenance mechanism is a second unit, one of a plurality of the maintenance units including the first unit and the second unit and having different structure is interchangeably attached to the attachment section, and the attachment section includes an identification section configured to identify the structure of the attached maintenance unit and a driving-force transmission section configured to transmit the driving force to the attached first unit.Type: GrantFiled: July 19, 2018Date of Patent: November 5, 2019Assignee: Seiko Epson CorporationInventors: Ryoji Fujimori, Takeshi Iwata, Chikashi Nakamura, Shuhei Harada, Kazutoshi Shimizu
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Patent number: 10449767Abstract: A liquid ejecting apparatus includes a liquid ejecting head which ejects liquid from a nozzle that is disposed on a nozzle surface, a wiping member with a lengthwise shape that is able to contact the nozzle surface, a contact portion which is able to contact the opposite side from a side at which the wiping member contacts the nozzle surface, and a transport mechanism which transports the wiping member, in which the contact portion has a first contact portion which is separated from the wiping member when the wiping member is transported by the transport mechanism and which contacts the wiping member when the wiping member is caused to contact the nozzle surface, and a second contact portion which contacts the wiping member when the wiping member is transported by the transport mechanism.Type: GrantFiled: September 13, 2017Date of Patent: October 22, 2019Assignee: Seiko Epson CorporationInventors: Kazuyuki Fujioka, Ryoji Fujimori
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Patent number: 10421288Abstract: A liquid ejecting apparatus includes a liquid ejecting section from which liquid is ejected. A return passage has a first end connected to a supply passage at a first location and a second end connected to the supply passage at a second location. The second location is positioned closer to the liquid ejecting section than the first location. The return passage and the supply passage constitute a circulating passage. A pump can cause fluid to flow through the circulating passage. A replaceable filter unit is a portion of the return passage. A discharge passage through which the fluid is discharged to the outside is connected to the return passage. An inflow controller can suppress external fluid from entering the discharge passage.Type: GrantFiled: September 28, 2017Date of Patent: September 24, 2019Assignee: Seiko Epson CorporationInventors: Masato Murayama, Takeshi Yoshida, Kaoru Koike, Ryoji Fujimori
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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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Publication number: 20190039372Abstract: To cure, with light irradiation, photocurable resin or electron beam-curable resin not containing a photopolymerization initiator. Under an atmosphere equal to or lower than predetermined oxygen concentration for not causing oxygen inhibition to polymerization of photocurable resin or electron beam-curable resin, an ultraviolet ray in wavelength region corresponding to a light absorption characteristic of the photocurable resin or the electron beam-curable resin is irradiated on the photocurable resin or the electron beam-curable resin to polymerize the photocurable resin or the electron beam-curable resin. After an ultraviolet ray is irradiated on the photocurable resin or the electron beam-curable resin to polymerize at least a surface layer, an electron beam is irradiated on the photocurable resin or the electron beam-curable resin to polymerize a deep part, and the entire photocurable resin or the entire electron beam-curable resin is cured.Type: ApplicationFiled: January 18, 2017Publication date: February 7, 2019Applicant: IWASAKI ELECTRIC CO., LTD.Inventors: Shinobu KINOSHITA, Ryoji FUJIMORI
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Patent number: 10195855Abstract: A capping device includes a moisturizing cap which is brought into contact with a liquid ejecting unit configured to eject a liquid from a nozzle so as to allow forming of a space including the nozzle, a connection flow channel which is connected to the moisturizing cap, and a moisturizing liquid supply unit which is connected to the connection flow channel, includes a moisturizing liquid storage unit configured to allow storing of a moisturizing liquid, and allows a supply of the moisturizing liquid to the moisturizing liquid storage unit so as to cause a liquid surface of the moisturizing liquid in the moisturizing liquid storage unit to be a first position. The moisturizing cap includes an atmospheric communication portion configured to open the space to an atmosphere.Type: GrantFiled: July 21, 2017Date of Patent: February 5, 2019Assignee: Seiko Epson CorporationInventors: Toshio Nakata, Ryoji Fujimori
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Publication number: 20190023017Abstract: A liquid ejecting apparatus includes a liquid ejecting head having nozzles for ejecting a liquid, and an attachment section to which a maintenance unit to be used for maintenance of the liquid ejecting head is to be detachably attached. If the maintenance unit having a maintenance mechanism for performing the maintenance by driving force transmitted from the attachment section is a first unit and the maintenance unit having no maintenance mechanism is a second unit, one of a plurality of the maintenance units including the first unit and the second unit and having different structure is interchangeably attached to the attachment section, and the attachment section includes an identification section configured to identify the structure of the attached maintenance unit and a driving-force transmission section configured to transmit the driving force to the attached first unit.Type: ApplicationFiled: July 19, 2018Publication date: January 24, 2019Inventors: Ryoji FUJIMORI, Takeshi IWATA, Chikashi NAKAMURA, Shuhei HARADA, Kazutoshi SHIMIZU
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Publication number: 20180370240Abstract: A roll wiping member unit includes a long wiping member and a core. The long wiping member has a starting end and a terminating end at ends in a longitudinal direction and a wiping portion that is subjected to a tensile load at a position between the starting end and the terminating end. The long wiping member is configured to wipe a liquid ejecting head at the wiping portion. The long wiping member is wound on the core from the terminating end in a roll. The long wiping member has a weak portion having strength that does not withstand the tensile load at a position closer than the wiping portion to the terminating end.Type: ApplicationFiled: June 19, 2018Publication date: December 27, 2018Inventors: Ryoji FUJIMORI, Toshio NAKATA