Patents by Inventor Eiji Okamoto

Eiji Okamoto 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).

  • Publication number: 20150273728
    Abstract: Provided is a three-dimensional structure manufacturing apparatus which manufactures a three-dimensional structure by repeatedly forming layers by using three-dimensional formation compositions containing three-dimensional formation powders, the apparatus including: a formation unit in which the three-dimensional structure is formed; and a layer formation unit which forms the layers configured with the three-dimensional formation compositions on the formation unit, in which a distance between the formation unit and the layer formation unit is adjusted according to the number of times the layer is formed.
    Type: Application
    Filed: March 19, 2015
    Publication date: October 1, 2015
    Inventors: Eiji OKAMOTO, Junichi GOTO
  • Publication number: 20150273763
    Abstract: A three-dimensional formation apparatus includes a head-unit which can discharge liquid in a first-direction and a control-unit which controls the head-unit. The control-unit forms a hollow on a changed portion where an outline of a cross section object is simultaneously changed in a second-direction and a third-direction towards the inside from the outline of the cross section object in the second-direction or the third-direction, in a first cross section object formation process and executes a filling process of discharging the liquid containing a second quantity which is larger than a first quantity to the hollow so as to come in contact with the cross section object formed in the first cross section object formation process, to fill at least a part of the hollow with the liquid, after the first cross section object formation process is executed and before the second cross section object formation process is executed.
    Type: Application
    Filed: March 23, 2015
    Publication date: October 1, 2015
    Inventor: Eiji OKAMOTO
  • Publication number: 20150273520
    Abstract: A method of manufacturing a three-dimensional structure using three-dimensional data includes: discharging ink containing a curable resin from a droplet discharge head having a plurality of nozzles; curing the discharged ink; and measuring discharge amounts of the ink in the plurality of nozzles to create discharge amount data. Here, the three-dimensional data is corrected based on the discharge amount data.
    Type: Application
    Filed: March 19, 2015
    Publication date: October 1, 2015
    Inventor: Eiji OKAMOTO
  • Publication number: 20150273762
    Abstract: A three-dimensional structure manufacturing apparatus, in which the three-dimensional structure is manufactured by laminating layers, includes: a base unit on which a three-dimensional structure is to be formed; a discharge unit which discharges a curable ink onto the base unit; flattening unit which flattens an ink layer composed of the curable ink discharged onto the base unit; and curing unit which cures the ink layer. Here, the ink layer is cured by the curing unit while being flattened by the flattening unit.
    Type: Application
    Filed: March 19, 2015
    Publication date: October 1, 2015
    Inventor: Eiji OKAMOTO
  • Publication number: 20150266240
    Abstract: An apparatus for producing a three-dimensional structure that produces a three-dimensional structure by laminating layers to each other using a paste-like composition containing grains includes a stage for which the composition is provided and on which the layer is formed; and a dispenser that directly supplies the composition to a forming area on the stage.
    Type: Application
    Filed: March 10, 2015
    Publication date: September 24, 2015
    Inventors: Eiji OKAMOTO, Junichi GOTO
  • Publication number: 20150266239
    Abstract: Provided is an apparatus for producing a three-dimensional structure of the invention that produces a three-dimensional structure by laminating layers using a paste-like composition containing grains, the apparatus including a stage for which the composition is provided and on which the layers are formed; a first layer forming unit that supplies the composition to a forming area on the stage and forms a first layer; and a film thickness adjusting unit that adjusts the film thickness of the first layer and sets the adjusted first layer as a second layer.
    Type: Application
    Filed: March 10, 2015
    Publication date: September 24, 2015
    Inventors: Eiji OKAMOTO, Junichi GOTO
  • Publication number: 20150258734
    Abstract: A method of producing a three-dimensional structure of the invention is a method of producing a three-dimensional structure by forming layers using a composition several times and laminating the layers, and an REID tag is embedded therein when the layers are formed several times.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 17, 2015
    Inventors: Eiji OKAMOTO, Toshimitsu HIRAI
  • Publication number: 20150258733
    Abstract: Provided is a three-dimensional structure manufacturing apparatus which manufactures a three-dimensional structure by laminating layers formed using three-dimensional formation compositions containing three-dimensional formation powders, the apparatus including: a formation unit in which the three-dimensional structure is formed; a first supply unit and a second supply unit which supply the three-dimensional formation compositions to the formation unit; a first squeegee and a second squeegee which form the layers configured with the three-dimensional formation compositions on the formation unit; and a discharge unit which discharges a binding solution for binding the three-dimensional formation compositions to the layer, in which the first supply unit, the first squeegee, the discharge unit, the second squeegee, and the second supply unit are arranged in this order, along a movement direction of the discharge unit.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 17, 2015
    Inventors: Eiji OKAMOTO, Junichi GOTO
  • Publication number: 20150258706
    Abstract: Provided is a three-dimensional structure manufacturing apparatus which manufactures a three-dimensional structure by laminating layers formed using three-dimensional formation compositions containing three-dimensional formation powders, the apparatus including: a formation unit in which the three-dimensional structure is formed; a supply unit which supplies the three-dimensional formation compositions to the formation unit; a layer formation unit which forms the layers configured with the three-dimensional formation compositions on the formation unit; and a discharge unit which discharges a binding solution to the layer, in which the supply unit and the layer formation unit form an n+1 layer on the backside of the discharge unit in a movement direction of the discharge unit, with the operation of discharging the binding solution, while moving the discharge unit relatively to an n-th layer.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 17, 2015
    Inventors: Eiji OKAMOTO, Junichi GOTO
  • Publication number: 20150246483
    Abstract: A three-dimensional shaped object manufacturing device is adapted to produce a three-dimensional shaped object by laminating layers using a pasty composition containing granular substances. The three-dimensional shaped object manufacturing device includes a stage in which the composition is supplied and the layers are formed, a side surface supporting section arranged on a side surface of the stage, and an adhesion preventing part configured and arranged to prevent adhesion of the composition on a surface of the side surface supporting section. The stage is movable relative to the side surface supporting section in a lamination direction of the layers.
    Type: Application
    Filed: February 18, 2015
    Publication date: September 3, 2015
    Inventors: Junichi GOTO, Eiji OKAMOTO
  • Publication number: 20150239179
    Abstract: An apparatus for manufacturing a three-dimensional shaped object manufactures a three-dimensional shaped object by using a composition in paste form including particles to successively lay down layers, and has a stage where the composition is applied and where the layers are formed, and a side surface support part arranged at a side surface of the stage. The stage and the side surfaces support part are configured and arranged so that the stage moves relative to the side surface support part in a direction of layering of the layers. At least a part of the side surface support part is spaced apart from the side surface of the stage when the stage is moving relative to the side surface support part in the direction of layering of the layers.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 27, 2015
    Inventors: Junichi GOTO, Eiji OKAMOTO
  • Publication number: 20150210016
    Abstract: In a method for manufacturing a three-dimensional shaped object in which layers formed by ejecting and curing ink including a curing resin are laminated, the method includes a layer forming process of forming the layers by using a composition for three-dimensional shaped object including powder for three-dimensional shaped object, and an ink ejecting process of ejecting an object formation ink and a sacrificial layer formation ink to the layers. In the ink ejecting process, the object formation ink and the sacrificial layer formation ink penetrate into the layers while forming a boundary between a region where the object formation ink penetrates in the layers and a region where the sacrificial layer formation ink penetrates into the layers.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 30, 2015
    Inventor: Eiji OKAMOTO
  • Publication number: 20150190965
    Abstract: A three-dimensional shaped article manufacturing method with which a three-dimensional shaped article having a glossy texture can be manufactured stably and efficiently is provided. A three-dimensional shaped article manufacturing method for manufacturing a three-dimensional shaped article by laminating layers formed by discharging and curing inks including a curable resin, the method including: applying a substantive section-forming ink to a region that forms the three-dimensional shaped article, and applying a sacrificial layer-forming ink for forming a sacrificial layer to a region that is adjacent to a region that forms an outermost layer of the three-dimensional shaped article and on a surface side of the outermost layer, a viscoelasticity of the sacrificial layer-forming ink during curing of the substantive section-forming ink being not less than a viscoelasticity of the substantive section-forming ink during curing of the substantive section-forming ink.
    Type: Application
    Filed: December 18, 2014
    Publication date: July 9, 2015
    Inventor: Eiji OKAMOTO
  • Publication number: 20150190964
    Abstract: A three-dimensional shaped article manufacturing method with which a three-dimensional shaped article having a matte-toned texture can be manufactured stably and efficiently is provided. A three-dimensional shaped article manufacturing method of the present invention is a method for manufacturing a three-dimensional shaped article by laminating layers formed by discharging and curing inks including a curable resin, the method including applying a substantive section-forming ink to a region that forms the three-dimensional shaped article, and applying a sacrificial layer-forming ink for forming a sacrificial layer to a region that is adjacent to a region that forms an outermost layer of the three-dimensional shaped article and on a surface side of the outermost layer, a viscoelasticity of the sacrificial layer-forming ink during curing of the substantive section-forming ink being less than a viscoelasticity of the substantive section-forming ink during curing of the substantive section-forming ink.
    Type: Application
    Filed: December 18, 2014
    Publication date: July 9, 2015
    Inventor: Eiji OKAMOTO
  • Publication number: 20150140295
    Abstract: A method of manufacturing a three-dimensional shaped object is a method of manufacturing a three-dimensional shaped object with which unit layers are laminated. The method is characterized by including a layer formation step for using a three-dimensional shaping composition that contains a three-dimensional shaping powder composed of a plurality of particles to form a layer having a predetermined thickness A (?m), and an ink discharge step for discharging an ink that contains a binding agent onto the layer and forming the unit layers. The ink discharge step includes discharging two or more different kinds of the ink onto a discharge unit region which is narrower than A2 (?m2) on a surface of the layer where the ink is discharged.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 21, 2015
    Inventor: Eiji OKAMOTO
  • Publication number: 20150115504
    Abstract: A molding method includes drawing cross-section elements of a three-dimensional object as a molding target on a drawing surface of a drawing stand with a liquid whose curing is precipitated by receiving activation energy as cross-section patterns; applying the activation energy to the liquid configuring the cross-section patterns in a state in which the cross-section patterns is pinched between the drawing stand and a molding stand; and detaching the cross-section patterns after being applied with the activation energy from the drawing stand and transferring the cross-section patterns to the molding stand side, wherein the drawing surface has a liquid repellent area that is an area representing liquid repellency for the liquid and a lyophilic area that is independently formed in an island shape within the liquid repellent area and is an area representing lyophillicity stronger than that of the liquid repellent area for the liquid.
    Type: Application
    Filed: January 2, 2015
    Publication date: April 30, 2015
    Inventors: Eiji OKAMOTO, Toshimitsu HIRAI, Kohei ISHIDA
  • Patent number: 8956563
    Abstract: A molding method includes drawing cross-section elements of a three-dimensional object as a molding target on a drawing surface of a drawing stand with a liquid whose curing is precipitated by receiving activation energy as cross-section patterns; applying the activation energy to the liquid configuring the cross-section patterns in a state in which the cross-section patterns is pinched between the drawing stand and a molding stand; and detaching the cross-section patterns after being applied with the activation energy from the drawing stand and transferring the cross-section patterns to the molding stand side, wherein the drawing surface has a liquid repellent area that is an area representing liquid repellency for the liquid and a lyophilic area that is independently formed in an island shape within the liquid repellent area and is an area representing lyophillicity stronger than that of the liquid repellent area for the liquid.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: February 17, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Eiji Okamoto, Toshimitsu Hirai, Kohei Ishida
  • Patent number: 8931517
    Abstract: The present invention provides a solenoid valve able to control flow amount as desired without receiving influence of change in fluid pressure. In the present invention, in a control valve for opening and closing a first poppet valve 103 and a second poppet valve 104 by a solenoid portion, a first pressure receiving area S1 which is a seating area of the first poppet valve 103, a second pressure receiving area S2 which is a seating area of the second poppet valve 104, a third pressure receiving area S3 which is a pressure receiving area of a first pressure sensing portion 145 and a fourth pressure receiving area S4 which is a pressure receiving area of a second pressure sensing portion 155 are made approximately equal to each other. Thereby unbalanced forces received from fluid flowing in and out when each poppet valve is actuated are all canceled.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: January 13, 2015
    Assignee: Eagle Industry Co., Ltd.
    Inventor: Eiji Okamoto
  • Publication number: 20140167325
    Abstract: A molding method includes drawing cross-section elements of a three-dimensional object as a molding target on a drawing surface of a drawing stand with a liquid whose curing is precipitated by receiving activation energy as cross-section patterns; applying the activation energy to the liquid configuring the cross-section patterns in a state in which the cross-section patterns is pinched between the drawing stand and a molding stand; and detaching the cross-section patterns after being applied with the activation energy from the drawing stand and transferring the cross-section patterns to the molding stand side, wherein the drawing surface has a liquid repellent area that is an area representing liquid repellency for the liquid and a lyophilic area that is independently formed in an island shape within the liquid repellent area and is an area representing lyophillicity stronger than that of the liquid repellent area for the liquid.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Eiji OKAMOTO, Toshimitsu HIRAI, Kohei ISHIDA
  • Patent number: 8696344
    Abstract: A molding method includes: drawing cross-section elements of a three-dimensional object as a molding target on a drawing surface of a drawing stand with a liquid whose curing is precipitated by receiving activation energy as cross-section patterns; applying the activation energy to the liquid configuring the cross-section patterns in a state in which the cross-section patterns is pinched between the drawing stand and a molding stand; and detaching the cross-section patterns after being applied with the activation energy from the drawing stand and transferring the cross-section patterns to the molding stand side, wherein the drawing surface has a liquid repellent area that is an area representing liquid repellency for the liquid and a lyophilic area that is independently formed in an island shape within the liquid repellent area and is an area representing lyophillicity stronger than that of the liquid repellent area for the liquid.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: April 15, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Eiji Okamoto, Toshimitsu Hirai, Kohei Ishida