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1.发明授权公开(公告)号：US11203159B2
公开(公告)日：2021-12-21
申请号：US16060026
申请日：2016-12-08
发明人： Kazuhiro Ochi , Masakatsu Okawa
IPC分类号： B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/112 , B29C64/165 , B41J2/21 , B29C64/209
摘要： A three-dimensional object production method according to the disclosure includes a step of allocating one of regions in a nozzle row (22) that is different from each other to each of pixel groups (25A, 25B) divided into a predetermined number n (n being an integer ≥2) of groups among pixel rows constituting the unit layer (25), and a step of forming the pixel rows by nozzles (21) included in each region forming one pixel group (25A, 25B).
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公开(公告)号：US11007725B2
公开(公告)日：2021-05-18
申请号：US15564169
申请日：2016-04-06
发明人： Kazuhiro Ochi
IPC分类号： B29C67/04 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/112 , B29C64/386 , B41J2/145 , G05B19/4099
摘要： A method for manufacturing a three-dimensional object is provided. The method reduces the difference between the amount of build material used and the amount of decorative ink used. The method for manufacturing a three-dimensional object including an object body portion (A) and a decorative portion (C) is provided. The method includes forming the object body portion (A) from at least decorative ink and build material and forming the decorative portion (C) from the decorative ink. The decorative portion (C) covers the object body portion (A).
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公开(公告)号：US20180071983A1
公开(公告)日：2018-03-15
申请号：US15702738
申请日：2017-09-12
发明人： Kazuhiro Ochi , Masakatsu Okawa
IPC分类号： B29C64/264 , B33Y10/00 , B33Y30/00 , B29C64/112 , B29C64/209 , B29C35/08
CPC分类号： B29C64/264 , B29C35/0805 , B29C64/112 , B29C64/209 , B29C64/393 , B29C2035/0827 , B33Y10/00 , B33Y30/00 , B33Y50/02
摘要： A shaping device that shapes a 3D object, including: a discharging head that discharges an ultraviolet curing type ink as a material of shaping; an ultraviolet light source; a main scanning driving unit; a sub-scanning driving unit, a flattening roller serving as a flattening unit, and a controller, where the controller causes the inkjet head to carry out the main scanning operation for plural times with respect to each position in a plane orthogonal to a layering direction, and when an integrated light amount of the ultraviolet ray irradiated per unit area in one main scanning operation is defined as a unit area light amount, the unit area light amount in some main scanning operations is made smaller than the unit area light amount in the other main scanning operations in the plural times of main scanning operations carried out with respect to each position.
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公开(公告)号：US11491704B2
公开(公告)日：2022-11-08
申请号：US16702558
申请日：2019-12-04
发明人： Kunio Hakkaku , Kazuhiro Ochi , Masakatsu Okawa
IPC分类号： B29C64/112 , B29C64/209 , B33Y10/00 , B33Y50/02 , B29K105/00 , B33Y30/00
摘要： A forming device that forms a 3D object includes a head section including a plurality of nozzle rows, and a scanning driving section that causes the head section to carry out a scanning operation; where the head section includes a first nozzle row group, a second nozzle row group, and a support nozzle row group; in an operation of at least one of the forming modes, the forming device forms at least one part of the 3D object using the first nozzle row group and the second nozzle row group and forms a support layer in a periphery of the 3D object; and when a maximum value of a material dischargeable in unit time in one scanning operation is defined as a material discharging ability, the material discharging ability of the support nozzle row group is greater than the material discharging ability of the first nozzle row group.
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公开(公告)号：US11383530B2
公开(公告)日：2022-07-12
申请号：US17087599
申请日：2020-11-02
发明人： Kazuhiro Ochi , Akira Takeuchi
IPC分类号： B41J11/00
摘要： An object is to suppress variation in dot diameter. As a solution, an irradiation control unit (50) performs control for selecting an irradiating element (E2) having a distance from a nozzle (n) to eject irradiation target ink, smaller than that of an irradiating element (E3) which has the maximum distance difference with respect to the distance between the nozzle (n) and an irradiating element (E1) selected as an irradiating element for ink ejected from the nozzle (n) on an outward way, as an irradiating element which is selected on a homeward way.
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6.发明申请公开(公告)号：US20190084220A1
公开(公告)日：2019-03-21
申请号：US16080674
申请日：2017-02-16
发明人： Kazuhiro Ochi , Kunio Hakkaku , Hirofumi Hara , Nobuo Kanai , Masaru Ohnishi
IPC分类号： B29C64/112 , B29C64/264 , B29C64/393 , B24B27/06
摘要： A three-dimensional object manufacturing method for manufacturing a three-dimensional object by ejecting a liquid shaping material and then solidifying the ejected shaping material includes: an interior forming process of forming an interior portion of the three-dimensional object by the shaping material; and a periphery forming process of forming a peripheral portion of a periphery of the interior portion by stacking a plurality of layers by the shaping material, where the shaping material for forming the interior portion in the interior forming process has a larger rigidity in a solid state compared to the shaping material for forming the peripheral portion in the periphery forming process, the periphery forming process is a process of forming a groove configuring one part of the peripheral portion, and the interior forming process is a process of forming the interior portion by placing the liquid shaping material in the groove.
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公开(公告)号：US20180250871A1
公开(公告)日：2018-09-06
申请号：US15905832
申请日：2018-02-27
发明人： Hikaru Mugishima , Kazuhiro Ochi
IPC分类号： B29C64/112 , B29C64/295 , B29C64/218 , B29C64/40 , B33Y10/00 , B33Y30/00
CPC分类号： B29C64/112 , B29C64/218 , B29C64/295 , B29C64/40 , B33Y10/00 , B33Y30/00
摘要： To provide a three-dimensional building apparatus and a three-dimensional building method capable of generating a three-dimensional object with sufficient adhesion between unit layers even when a photocurable material having larger cure shrinkage due to photocuring placed under a low temperature condition is used as a model material and a support material. A three-dimensional building apparatus includes: a stage configured to hold a deposition structure formed by depositing unit layers; an ejector configured to eject a photocurable model material and a photocurable support material toward the uppermost surface of the deposition structure while moving relative to the stage; an emitter configured to emit an active beam light capable of curing the photocurable model material and the photocurable support material; and a heater configured to heat the uppermost surface of the deposition structure in forming a workpiece.
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公开(公告)号：US11518094B2
公开(公告)日：2022-12-06
申请号：US15781147
申请日：2016-12-08
发明人： Kazuhiro Ochi
IPC分类号： B29C64/209 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B29C64/112 , B29C64/393 , B29C64/35
摘要： A nozzle check suitable for production of a three-dimensional shaped object is performed. A production method of a three-dimensional shaped object M configured to laminate unit layers (L1, L2, . . . ), in which a nozzle checking step inspects at least a part of nozzles (6) for ejecting ink for forming a particular unit layer, which is performed after having started production in a case where a timing of the nozzle check is before forming the particular unit layer and this unit layer is a lowermost layer (L1), and is performed after having formed a unit layer that is located directly under the particular unit layer in a case where the timing of the nozzle check is before forming the particular unit layer and this layer is not the lowermost layer (L1).
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公开(公告)号：US11247403B2
公开(公告)日：2022-02-15
申请号：US15816523
申请日：2017-11-17
IPC分类号： B29C64/40 , B29C64/209 , B29C64/245 , B29C64/386 , B29C64/112 , B33Y30/00 , B33Y50/02 , B33Y70/00
摘要： Provided is an apparatus for manufacturing a three-dimensional object that may allow a support material to land on a table before a modeling material irrespective of the moving direction of a carriage. The apparatus includes a modeling material head that ejects an ink for object shaping, support material heads that eject an ink for supporting the three-dimensional object, color ink heads that eject color inks, curing units for curing the ejected inks, and a flattening roller unit with a flattening roller used to flatten surfaces of the ejected inks. In the apparatus, one of the curing units, the flattening roller unit, one of the support material heads, the modeling material head, the color ink heads, the other support material head, and the other curing unit are arranged and mounted in the carriage in the mentioned order from one side to the other in the main scanning direction.
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公开(公告)号：US20190210272A1
公开(公告)日：2019-07-11
申请号：US16099436
申请日：2017-05-23
发明人： Kazuhiro Ochi , Masakatsu Okawa
IPC分类号： B29C64/112 , B29C64/255 , B41J2/175 , B41J2/21
CPC分类号： B29C64/112 , B29C64/20 , B29C64/255 , B33Y10/00 , B33Y30/00 , B41J2/175 , B41J2/2114
摘要： A building apparatus having a configuration more suitable for building an object is provided. The building apparatus is configured to build an object in three-dimensional by ejecting ink. The building apparatus includes an ink container holder 202 that is a first container holder for holding an ink container 302 that is a first ink container, an ink container holder 204 that is a second container holder for holding an ink container 304 that is a second ink container, a first ejection head for ejecting ink supplied from the ink container 302, and a second ejection head for ejecting ink supplied from the ink container 304. The capacity of the ink container 302 is smaller than the capacity of the ink container 304.
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