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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：US10221325B2
公开(公告)日：2019-03-05
申请号：US15580274
申请日：2016-07-08
发明人： Masakatsu Okawa , Syuji Iwata , Tsuguo Yamaoka
摘要： An ink composition according to the present invention contains an adhesiveness providing component including an acrylate monomer for providing an adhesiveness with respect to a print medium, and a rigidity providing component including at least one substance selected from the group consisting of a multi-functional acrylate monomer and a multi-functional acrylate oligomer.
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公开(公告)号：US09688080B2
公开(公告)日：2017-06-27
申请号：US15125183
申请日：2015-03-06
发明人： Masakatsu Okawa
CPC分类号： B41J11/002 , B41J2/01
摘要： There is provided an inkjet printing apparatus and an inkjet printing method that may obtain a printed matter that excels in glossiness. An inkjet printing apparatus 1 has an irradiation controller 20. The irradiation controller 20 turns on ones of a plurality of irradiation elements corresponding to passes before and inclusive of a (n−m)th pass (m is an integer smaller than n and greater than or equal to 1), and turns off or controls ones of the plurality of irradiation elements corresponding to a last (m)th pass to have a lower illuminance than the irradiation elements corresponding to the passes before and inclusive of the (n−m)th pass.
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公开(公告)号：US11712855B2
公开(公告)日：2023-08-01
申请号：US17517688
申请日：2021-11-03
发明人： Masakatsu Okawa
IPC分类号： B29C64/393 , B33Y10/00 , B33Y50/02 , B29C64/112 , G05B19/4099 , B33Y30/00 , B29C64/209 , B29K105/00
CPC分类号： B29C64/393 , B29C64/112 , B33Y10/00 , B33Y50/02 , G05B19/4099 , B29C64/209 , B29K2105/0032 , B33Y30/00 , G05B2219/35134 , G05B2219/49007
摘要： Disclosed is a shaping system for shaping a three-dimensional object, which includes a slice data generation step that generates slice data and a shaping execution step that shapes the three-dimensional object by a shaping apparatus based on the slice data. The shaping apparatus shapes the three-dimensional object using inkjet heads. The slice data generation step has a color cross-section data generation step that generates color cross-section data showing at least a cross-sectional shape of the three-dimensional object and a color at each position, a plate division data generation step that generates plate division cross-section data in which the color cross-section data is color-separated for each color of the material, and a plate division cross-section data change step that changes at least some plate division cross-section data. The slice data is generated based on the plate division cross-section data changed in the plate division cross-section data change step.
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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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6.发明授权公开(公告)号：US11713366B2
公开(公告)日：2023-08-01
申请号：US16311578
申请日：2017-06-22
发明人： Katsuyuki Kito , Taeko Izumo , Masakatsu Okawa , Kenta Hongo
IPC分类号： C08F220/28 , C08F290/06 , C08F2/46 , B33Y10/00 , B29C64/112 , B29C64/40 , C09D11/101 , C09D11/107 , C09D11/30 , B29C67/00 , B29K33/00
CPC分类号： C08F220/282 , B29C64/112 , B29C64/40 , B29C67/00 , B33Y10/00 , C08F2/46 , C08F290/06 , C09D11/101 , C09D11/107 , C09D11/30 , B29K2033/08
摘要： The present invention provides a resin composition for a model material, for obtaining an optically shaped article that has flexibility and does not crack even when it is bent, and a method for manufacturing optically shaped articles that are shaped using the resin composition for a model material. The present invention relates to a resin composition for a model material, comprising, based on 100 parts by weight of a whole resin composition, 20 to 90 parts by weight of a (meth)acrylate monomer represented by the following formula (1) and/or a (meth)acrylate monomer represented by the following formula (2) as a monofunctional monomer (A), and 5 parts by weight or more of a polyfunctional oligomer as an oligomer (B), and further comprises no or 15 parts by weight or less, based on 100 parts by weight of the whole resin composition, of polyfunctional monomer (C),
wherein R1, R2 and R3 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 3 carbon atoms.-
公开(公告)号：US11491776B2
公开(公告)日：2022-11-08
申请号：US16084190
申请日：2017-02-28
发明人： Katsuyuki Kito , Taeko Izumo , Masakatsu Okawa , Kenta Hongo
IPC分类号： B33Y10/00 , B33Y70/00 , C08F220/28 , C08F220/30 , C08F290/06 , B29C64/118 , B29K33/04
摘要： A composition for model materials (4a) is used for shaping an optically shaped article by an inkjet optical shaping method, comprises a monofunctional monomer (A) and an oligomer (B) as a photocurable component, further, comprises no polyfunctional monomer (C) as a photocurable component, or comprises a polyfunctional monomer (C) as a photocurable component at 3.0 parts by weight based on 100 parts by weight of a whole composition for model materials, the oligomer (B) has a hydroxyl group or an amino group, and a total molar fraction of the hydroxyl group and the amino group in a total amount of the photocurable components is less than 5.0%. The composition for model materials (4a) can afford an optically shaped article that has flexibility, and does not crack even when it is bent.
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8.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：US11192307B2
公开(公告)日：2021-12-07
申请号：US15917849
申请日：2018-03-12
发明人： Masakatsu Okawa
IPC分类号： B29C64/393 , B33Y10/00 , B33Y50/02 , B29C64/112 , G05B19/4099 , B33Y70/00 , B33Y30/00 , B29C64/209 , B29K105/00
摘要： Disclosed is a shaping method for shaping a three-dimensional object, which includes a slice data generation step that generates slice data and a shaping execution step that shapes the three-dimensional object by a shaping apparatus based on the slice data. The shaping apparatus shapes the three-dimensional object using inkjet heads. The slice data generation step has a color cross-section data generation step that generates color cross-section data showing at least a cross-sectional shape of the three-dimensional object and a color at each position, a plate division data generation step that generates plate division cross-section data in which the color cross-section data is color-separated for each color of the material, and a plate division cross-section data change step that changes at least some plate division cross-section data. The slice data is generated based on the plate division cross-section data changed in the plate division cross-section data change step.
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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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