Patents by Inventor Maki NARIAI
Maki NARIAI 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: 9802363Abstract: A method for producing an object includes forming and laying N unit layers into which an object is divided, sequentially from a first layer to an Nth layer, using a resin material as a material, or using a resin material for implementing a step, to form the object, the method including performing a discharge treatment at either or both of a timing while forming a unit layer among the N unit layers, and a timing after forming the unit layer, but before starting forming a next unit layer among the N unit layers.Type: GrantFiled: March 27, 2015Date of Patent: October 31, 2017Assignee: Seiko Epson CorporationInventors: Atsushi Denda, Kenji Kitada, Maki Nariai
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Patent number: 9475312Abstract: An ink jet printer includes a transport mechanism that transports a medium in a first direction; and a carriage that includes a plasma irradiation mechanism, which emits plasma generated in a discharge portion from a plasma irradiation port and then irradiates at least a part of the medium with the plasma, and a head which ejects ink onto the part of the medium which is irradiated with the plasma, and that moves in a second direction intersecting with the first direction, in which the plasma irradiation mechanism is provided on one side of the head in the second direction, and the discharge portion of the plasma irradiation mechanism is disposed so as not to come in contact with the medium.Type: GrantFiled: January 21, 2015Date of Patent: October 25, 2016Assignee: Seiko Epson CorporationInventors: Kenji Kitada, Takuya Miyakawa, Takashi Saiba, Kiyofumi Kitawada, Atsushi Denda, Maki Nariai
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Publication number: 20160243517Abstract: A method of manufacturing a dispersion liquid includes preparing a mixed liquid which contains a first solvent, a second solvent having solubility which is equal to or less than 1% with respect to the first solvent, and a compound having a polymerizable functional group; and microcapsulating and dispersing the first solvent or the second solvent by performing liquid plasma treatment on the mixed liquid while applying ultrasonic waves to the mixed liquid by using an ultrasonic wave generating apparatus.Type: ApplicationFiled: February 23, 2016Publication date: August 25, 2016Applicant: Seiko Epson CorporationInventors: Kenji KITADA, Maki NARIAI, Atsushi DENDA, Naoyuki TOYODA
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Publication number: 20160082402Abstract: A method of producing a dispersion according to the invention includes preparing a mixed liquid containing a dispersoid and a dispersion medium, and dispersing the dispersoid in the dispersion medium by subjecting the dispersoid in the mixed liquid to an in-liquid plasma processing while subjecting the dispersoid to a pulverization processing.Type: ApplicationFiled: September 21, 2015Publication date: March 24, 2016Inventors: Kenji KITADA, Maki NARIAI, Atsushi DENDA, Naoyuki TOYODA
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Publication number: 20150273766Abstract: A method for producing an object includes forming and laying N unit layers into which an object is divided, sequentially from a first layer to an Nth layer, using a resin material as a material, or using a resin material for implementing a step, to form the object, the method including performing a discharge treatment at either or both of a timing while forming a unit layer among the N unit layers, and a timing after forming the unit layer, but before starting forming a next unit layer among the N unit layers.Type: ApplicationFiled: March 27, 2015Publication date: October 1, 2015Inventors: Atsushi DENDA, Kenji KITADA, Maki NARIAI
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Publication number: 20150202894Abstract: An ink jet printer includes a transport mechanism that transports a medium in a first direction; and a carriage that includes a plasma irradiation mechanism, which emits plasma generated in a discharge portion from a plasma irradiation port and then irradiates at least a part of the medium with the plasma, and a head which ejects ink onto the part of the medium which is irradiated with the plasma, and that moves in a second direction intersecting with the first direction, in which the plasma irradiation mechanism is provided on one side of the head in the second direction, and the discharge portion of the plasma irradiation mechanism is disposed so as not to come in contact with the medium.Type: ApplicationFiled: January 21, 2015Publication date: July 23, 2015Inventors: Kenji KITADA, Takuya MIYAKAWA, Takashi SAIBA, Kiyofumi KITAWADA, Atsushi DENDA, Maki NARIAI
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Patent number: 9067423Abstract: A liquid container according to an aspect of this invention has a containing chamber in which a liquid which temporarily generates gas by a chemical change of contained components is contained, a circulation port which communicates with the containing chamber and circulates the liquid, and a valve provided in such a manner as to connect the containing chamber to the outside thereof, in which the hydrogen penetration amount of a member partitioning the containing chamber is 0.0001 ml/cm2·day·atm or more and 0.01 ml/cm2·day·atm or lower per day and at least one kind of the contained components can be a base metal pigment.Type: GrantFiled: March 18, 2014Date of Patent: June 30, 2015Assignee: Seiko Epson CorporationInventors: Atsushi Denda, Maki Nariai, Naoki Koike, Takayoshi Kagata
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Patent number: 9050816Abstract: A liquid container according to an aspect of this invention is a liquid container which is packaged with a packaging body, in which the liquid container has a containing chamber in which liquid which temporarily generates gas by a chemical change of contained components is contained, the hydrogen penetration amount of a member partitioning the containing chamber is 0.0001 ml/cm2·day·atm or more and 0.01 ml/cm2·day·atm or lower per day, the hydrogen penetration amount of the packaging body is equal to or larger than the hydrogen penetration amount of the member partitioning the containing chamber, and the vapor penetration amount of the packaging body is lower than the vapor penetration amount of the member partitioning the containing chamber.Type: GrantFiled: March 18, 2014Date of Patent: June 9, 2015Assignee: Seiko Epson CorporationInventors: Naoki Koike, Maki Nariai, Atsushi Denda, Takayoshi Kagata
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Patent number: 9022544Abstract: An ink jet recording method according to an aspect of this invention includes discharging an ink composition containing a metallic pigment to a recording medium using a recording head, and then recording a metallic image in a recording region of the recording medium, in which particles of the metallic pigment have a plate shape and have a coating layer on the surface, the average particle diameter in the ink composition is 0.5 ?m or more and 2 ?m or less, the total film thickness including the coating layer is 10 nm or more and 50 nm or less, and the average number of the laminated metallic pigment particles in the metallic image is 3 or more and 30 or less.Type: GrantFiled: October 30, 2013Date of Patent: May 5, 2015Assignee: Seiko Epson CorporationInventors: Atsushi Denda, Maki Nariai, Naoki Koike, Takayoshi Kagata
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Patent number: 8985754Abstract: A liquid container may be connected to a liquid consuming unit. The liquid container includes an ink holder containing an ink composition, and an ink delivering portion through which the ink composition flows out of the ink holder. The ink composition contains an aqueous medium and a water-resistant metal pigment that includes pigment particles whose surfaces are covered with a coating and reacts with the aqueous medium to generate hydrogen gas. The amount of hydrogen gas generated per day from the ink composition in the ink holder is lower than or equal to the amount of hydrogen gas permeating per day through the ink holder, in an environment of 25° C.Type: GrantFiled: December 5, 2013Date of Patent: March 24, 2015Assignee: Seiko Epson CorporationInventors: Maki Nariai, Atsushi Denda, Naoki Koike, Takayoshi Kagata
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Patent number: 8979245Abstract: A recording apparatus includes a head, wherein a manifold in which an ink flows, and a plurality of ink flow paths divided from the manifold and arranged in a first direction are formed in the head; a nozzle opening portion discharging the ink flowing from the manifold is formed in the ink flow path; when a maximum area is C1 and a minimum area is C2 in a cross section of the ink flow path including the first direction and a vertical direction, except a cross section including the nozzle opening portion, the C1 is more than once and equal to or less than 3.5 times the C2; and the ink contains a flaky pigment having an average thickness of 5 nm or more and 50 nm or less and a 50% average particle diameter of an equivalent circle diameter of 0.5 ?m or more and 2.1 ?m or less.Type: GrantFiled: March 21, 2013Date of Patent: March 17, 2015Assignee: Seiko Epson CorporationInventors: Maki Nariai, Kinya Ozawa, Shinichi Itaya
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Patent number: 8858696Abstract: The nonaqueous ink composition for ink jet recording according to the invention includes a compound represented by the General Formula (1) below; and a compound represented by the General Formula (2A) or the General Formula (2B) below. In the General Formula (1), R1 represents an alkyl group having 1 to 4 carbon atoms, and R2 and R3 represent a methyl group or an ethyl group; in the General Formula (2A), R4A represents an alkyl group having 5 to 9 carbon atoms, and R5A represents a methyl group or an ethyl group; in the General Formula (2B), R4B represents an alkylene group having 2 to 5 carbon atoms, and R5B and R6B each independently represent alkyl groups having 1 to 4 carbon atoms.Type: GrantFiled: January 25, 2013Date of Patent: October 14, 2014Assignee: Seiko Epson CorporationInventors: Akihito Sao, Maki Nariai, Makoto Nagase, Keiji Iida, Tomoki Shinoda, Kenichiro Kubota
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Publication number: 20140285592Abstract: A liquid container according to an aspect of this invention is a liquid container which is packaged with a packaging body, in which the liquid container has a containing chamber in which liquid which temporarily generates gas by a chemical change of contained components is contained, the hydrogen penetration amount of a member partitioning the containing chamber is 0.0001 ml/cm2·day·atm or more and 0.01 ml/cm2·day·atm or lower per day, the hydrogen penetration amount of the packaging body is equal to or larger than the hydrogen penetration amount of the member partitioning the containing chamber, and the vapor penetration amount of the packaging body is lower than the vapor penetration amount of the member partitioning the containing chamber.Type: ApplicationFiled: March 18, 2014Publication date: September 25, 2014Applicant: Seiko Epson CorporationInventors: Naoki KOIKE, Maki NARIAI, Atsushi DENDA, Takayoshi KAGATA
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Publication number: 20140285591Abstract: A liquid container according to an aspect of this invention has a containing chamber in which a liquid which temporarily generates gas by a chemical change of contained components is contained, a circulation port which communicates with the containing chamber and circulates the liquid, and a valve provided in such a manner as to connect the containing chamber to the outside thereof, in which the hydrogen penetration amount of a member partitioning the containing chamber is 0.0001 ml/cm2·day·atm or more and 0.01 ml/cm2·day·atm or lower per day and at least one kind of the contained components can be a base metal pigment.Type: ApplicationFiled: March 18, 2014Publication date: September 25, 2014Applicant: Seiko Epson CorporationInventors: Atsushi DENDA, Maki NARIAI, Naoki KOIKE, Takayoshi KAGATA
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Publication number: 20140168326Abstract: A liquid container may be connected to a liquid consuming unit. The liquid container includes an ink holder containing an ink composition, and an ink delivering portion through which the ink composition flows out of the ink holder. The ink composition contains an aqueous medium and a water-resistant metal pigment that includes pigment particles whose surfaces are covered with a coating and reacts with the aqueous medium to generate hydrogen gas. The amount of hydrogen gas generated per day from the ink composition in the ink holder is lower than or equal to the amount of hydrogen gas permeating per day through the ink holder, in an environment of 25° C.Type: ApplicationFiled: December 5, 2013Publication date: June 19, 2014Applicant: Seiko Epson CorporationInventors: Maki Nariai, Atsushi Denda, Naoki Koike, Takayoshi Kagata
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Publication number: 20140127482Abstract: An ink jet recording method according to an aspect of this invention includes discharging an ink composition containing a metallic pigment to a recording medium using a recording head, and then recording a metallic image in a recording region of the recording medium, in which particles of the metallic pigment have a plate shape and have a coating layer on the surface, the average particle diameter in the ink composition is 0.5 ?m or more and 2 ?m or less, the total film thickness including the coating layer is 10 nm or more and 50 nm or less, and the average number of the laminated metallic pigment particles in the metallic image is 3 or more and 30 or less.Type: ApplicationFiled: October 30, 2013Publication date: May 8, 2014Applicant: Seiko Epson CorporationInventors: Atsushi DENDA, Maki NARIAI, Naoki KOIKE, Takayoshi KAGATA
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Publication number: 20130286068Abstract: A liquid ejecting apparatus that includes a liquid ejecting head capable of ejecting a liquid containing solid contents from a nozzle, by driving pressure generating unit for changing a capacity of a pressure chamber communicating with the nozzle; and control unit for controlling the drive of the pressure generating unit, wherein the control unit drives the pressure generating unit so that a volume of the liquid ejected from the nozzle per a unit time is equal to or less than 60 nl/s, and an initial speed of the liquid ejected from the nozzle is equal to or less than 8 m/s.Type: ApplicationFiled: March 27, 2013Publication date: October 31, 2013Applicant: Seiko Epson CorporationInventors: Shinichi ITAYA, Maki NARIAI, Kinya OZAWA, Akihito SAO
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Publication number: 20130250003Abstract: A recording apparatus includes a head, wherein a manifold in which an ink flows, and a plurality of ink flow paths divided from the manifold and arranged in a first direction are formed in the head; a nozzle opening portion discharging the ink flowing from the manifold is formed in the ink flow path; when a maximum area is C1 and a minimum area is C2 in a cross section of the ink flow path including the first direction and a vertical direction, except a cross section including the nozzle opening portion, the C1 is more than once and equal to or less than 3.5 times the C2; and the ink contains a flaky pigment having an average thickness of 5 nm or more and 50 nm or less and a 50% average particle diameter of an equivalent circle diameter of 0.5 ?m or more and 2.1 ?m or less.Type: ApplicationFiled: March 21, 2013Publication date: September 26, 2013Applicant: Seiko Epson CorporationInventors: Maki NARIAI, Kinya OZAWA, Shinichi ITAYA