公开(公告)号：US20230240016A1

公开(公告)日：2023-07-27

申请号：US18157172

申请日：2023-01-20

Applicant: SEIKO EPSON CORPORATION

Inventor： Toshimitsu HIRAI ,  Hironori HASEI ,  Tatsuya FUJII

IPC: H05K3/12 ,  H05K1/09 ,  H05K1/03

CPC classification number: H05K3/125 ,  H05K1/097 ,  H05K1/0306 ,  H05K3/38

Abstract: A method of forming a conductive pattern includes forming a conductive pattern by ejecting a liquid-state material containing conductive fine particles onto a porous base material, wherein the conductive fine particles have an average particle size of from 1 nm to 200 nm, and the porous base material is formed with a plurality of cavities and includes communication holes through which the plurality of cavities are in communication, an average diameter of the communication holes being less than or equal to the average particle size of the conductive fine particles.

公开(公告)号：US20220024137A1

公开(公告)日：2022-01-27

申请号：US17381742

申请日：2021-07-21

Applicant: Seiko Epson Corporation

Inventor： Akihiko TSUNOYA ,  Toshimitsu HIRAI ,  Kaoru MOMOSE

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B28B1/00 ,  B28B17/00 ,  B29C64/209 ,  B22F10/85 ,  B22F12/53

Abstract: A three-dimensional shaping device includes: a shaping table; a layer forming unit configured to form a powder layer on the shaping table; a head configured to eject a liquid containing a binder from a nozzle to a shaping region; and a control unit configured to control movement of the head with respect to the shaping table and driving of the head by applying a voltage. The control unit executes a first flushing operation when an area of the shaping region is equal to or greater than the threshold value, and executes a second flushing operation when the area of the shaping region is less than the threshold value.

公开(公告)号：US20220024133A1

公开(公告)日：2022-01-27

申请号：US17443039

申请日：2021-07-20

Applicant: SEIKO EPSON CORPORATION

Inventor： Akihiko TSUNOYA ,  Kaoru MOMOSE ,  Toshimitsu HIRAI

IPC: B29C64/35 ,  B29C64/165 ,  B29C64/227 ,  B29C64/209

Abstract: A three-dimensional shaping device includes: a shaping table; a layer forming unit configured to form a powder layer on the shaping table; a head configured to eject a liquid containing a binder from a nozzle to a shaping region; and a control unit configured to control movement of the head with respect to the shaping table and driving of the head by applying a voltage. The control unit executes a first flushing operation when a distance between the shaping region and the flushing position is less than a threshold value, and executes a second flushing operation when the distance between the shaping region and the flushing position is equal to or greater than the threshold value.

公开(公告)号：US20210362418A1

公开(公告)日：2021-11-25

申请号：US17324530

申请日：2021-05-19

Applicant: SEIKO EPSON CORPORATION

Inventor： Manabu WATANABE ,  Toshimitsu HIRAI ,  Akihiko TSUNOYA ,  Kaoru MOMOSE

IPC: B29C64/314 ,  B29C64/165 ,  B29C64/209 ,  B29C64/386

Abstract: A three-dimensional shaped article production apparatus includes a shaping table, a layer forming section that forms a powder layer, a head that ejects a liquid containing a binder to a shaping region of a three-dimensional shaped article, a liquid supply system that supplies the liquid to the head, and a moving system that relatively moves the head with respect to the shaping table, wherein the head includes a nozzle that ejects the liquid, a pressure chamber that communicates with the nozzle, a supply flow channel that communicates with the pressure chamber upstream in a supply direction of the liquid, and a circulation flow channel that communicates with the pressure chamber downstream in the supply direction, the circulation flow channel includes a first filter, and a pore diameter of the first filter is larger than a particle diameter of a powder for forming the powder layer.

公开(公告)号：US20210154891A1

公开(公告)日：2021-05-27

申请号：US17165069

申请日：2021-02-02

Applicant: SEIKO EPSON CORPORATION

Inventor： Eiji OKAMOTO ,  Masaya ISHIDA ,  Hiroshi WADA ,  Toshimitsu HIRAI

IPC: B29C35/08 ,  B28B1/00 ,  B22F7/00 ,  B32B18/00 ,  B33Y40/00 ,  B33Y80/00 ,  B29C64/40 ,  B22F10/10 ,  B33Y10/00

Abstract: A three-dimensional shaped article production method for producing a three-dimensional shaped article by stacking layers to form a stacked body includes a constituent layer formation step of forming a constituent layer which corresponds to a constituent region of the three-dimensional shaped article, a support layer formation step of forming a support layer which is in contact with the constituent layer and supports the constituent layer, and a sintering step of sintering the constituent layer, wherein the support layer is configured such that as compared with the volume decrement accompanying the sintering step of a space surrounded by the constituent layer from at least two directions, the volume decrement accompanying the sintering step of the support layer which supports the constituent layer in the space is larger.

公开(公告)号：US20200081416A1

公开(公告)日：2020-03-12

申请号：US16562475

申请日：2019-09-06

Applicant: Seiko Epson Corporation

Inventor： Akihiko TSUNOYA ,  Toshimitsu HIRAI ,  Eiji OKAMOTO

IPC: G05B19/4099 ,  B33Y50/00 ,  G06N3/00 ,  G06N20/00 ,  G06N5/04 ,  B29C64/393

Abstract: A manufacturing device for a three-dimensional shaped object has artificial intelligence to perform machine learning. The manufacturing device includes: an acquisition unit acquiring monitoring data of the three-dimensional shaped object and improvement condition data; a housing unit housing reference data of the monitoring data; a storage unit storing the monitoring data acquired by the acquisition unit; an inference unit classifying the monitoring data acquired by the acquisition unit into normal data and abnormal data, based on the reference data of the monitoring data housed in the housing unit, updating an inference criterion by machine learning, based on the monitoring data stored in the storage unit and classified as the normal data, and inferring what abnormality occurs when an abnormality is generated in updated data of the monitoring data newly acquired by the acquisition unit; and a decision unit deciding the improvement condition according to the abnormality inferred by the inference unit.

公开(公告)号：US20180079193A1

公开(公告)日：2018-03-22

申请号：US15696608

申请日：2017-09-06

Applicant: Seiko Epson Corporation

Inventor： Masaya ISHIDA ,  Toshimitsu HIRAI ,  Eiji OKAMOTO ,  Akihiko TSUNOYA ,  Junichi SANO

IPC: B32B37/14 ,  B32B27/06 ,  B32B41/00

Abstract: A three-dimensional modeling apparatus includes an ejection portion capable of ejecting a fluid material, which is a material of an object, and a control portion that forms a laminated body in which one layer or more of cross-section bodies are laminated by executing one or more repetitions of a cross-section body formation process, which forms a cross-section body equivalent to one layer of the object by controlling the ejection portion and ejecting the fluid material. The control portion executes a correction process that ejects the fluid material onto a target correction location, which is at least a portion of an outline section of an upper surface of the laminated body.

公开(公告)号：US20230297032A1

公开(公告)日：2023-09-21

申请号：US18184425

申请日：2023-03-15

Applicant: SEIKO EPSON CORPORATION

Inventor： Toshinori NAKAZAWA ,  Hironori HASEI ,  Toshimitsu HIRAI ,  Hirofumi KUROSAWA

IPC: G04D3/00 ,  B41J3/407 ,  G04B19/06

CPC classification number: G04D3/0048 ,  B41J3/4071 ,  G04B19/06

Abstract: A dial decoration method of the present disclosure is a dial decoration method including a base formation step of forming a pattern shape on a base material and using the pattern shape as a base, and a printed layer formation step of forming a printed layer on a surface side of the base, and the printed layer formation step includes printing a pattern shape, to form the printed layer, by changing a density of dots of ink ejected by an inkjet method.

公开(公告)号：US20230297031A1

公开(公告)日：2023-09-21

申请号：US18184397

申请日：2023-03-15

Applicant: SEIKO EPSON CORPORATION

Inventor： Toshinori NAKAZAWA ,  Hironori HASEI ,  Toshimitsu HIRAI ,  Hirofumi KUROSAWA

IPC: G04B45/00 ,  G04B19/12

CPC classification number: G04B45/0076 ,  G04B19/12

Abstract: A timepiece component decoration method includes a base formation step of forming a pattern shape on a base material of a timepiece component and using the pattern shape as a base, a first light-transmissive layer formation step of forming, on a surface of the base, a first light-transmissive layer using a light-transmissive resin, a first liquid repellent treatment step of performing a liquid repellent treatment on a surface of the first light-transmissive layer, and a first printed layer formation step of, to form a first printed layer, ejecting ink and printing a pattern shape by an inkjet method on the surface of the first light-transmissive layer on which the liquid repellent treatment was performed, after the first liquid repellent treatment step.

公开(公告)号：US20220024138A1

公开(公告)日：2022-01-27

申请号：US17381748

申请日：2021-07-21

Applicant: Seiko Epson Corporation

Inventor： Akihiko TSUNOYA ,  Toshimitsu HIRAI ,  Kaoru MOMOSE

IPC: B29C64/393 ,  B29C64/245 ,  B29C64/209 ,  B29C64/165 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional shaping device includes: a shaping table; a layer forming unit configured to form a powder layer on the shaping table; a head configured to eject a liquid containing a binder from a nozzle to a shaping region; and a control unit configured to control movement of the head with respect to the shaping table and driving of the head by applying a voltage. The control unit changes an execution condition of a flushing operation depending on whether an idle running time during which the head is moved without ejecting the liquid is less than a threshold value or equal to or greater than the threshold value.