公开(公告)号：US20240224409A1

公开(公告)日：2024-07-04

申请号：US18420769

申请日：2024-01-24

Applicant: FUJIFILM Corporation

Inventor： Yusuke FUJII

IPC: H05K1/02 ,  H05K1/18

CPC classification number: H05K1/0216 ,  H05K1/0215 ,  H05K1/181 ,  H05K2201/0761 ,  H05K2203/013 ,  H05K2203/1377

Abstract: Provided are an electronic device including: a wiring board having a mounting surface; a ground electrode that defines a ground region on the mounting surface; an electronic component that is located on the mounting surface and is disposed in the ground region; a conductive component that is disposed adjacent to an outer edge of the ground electrode; an internal insulating protective layer that is disposed in the ground region and covers the electronic component; an external insulating protective layer that is disposed outside the ground region and covers the conductive component; and an electromagnetic wave shielding layer that is provided to extend over the internal insulating protective layer and the ground electrode and that covers the internal insulating protective layer and is electrically connected to the ground electrode, the electromagnetic wave shielding layer being a solidified product of an ink for forming an electromagnetic wave shielding layer, and a manufacturing method thereof.

公开(公告)号：US20200317944A1

公开(公告)日：2020-10-08

申请号：US16904536

申请日：2020-06-17

Applicant: FUJIFILM CORPORATION

Inventor： Kiyotaka FUKAGAWA ,  Akinori SUGISHIMA ,  Yusuke FUJII

IPC: C09D11/54 ,  B41M5/00 ,  B41M5/52 ,  C09D11/322

Abstract: Provided are a printing pretreatment liquid for a polyester base material including a polymer which has a Hansen solubility parameter value of 18 MPa0.5 to 30 MPa0.5, water, and at least one aggregating agent selected from the group consisting of a polyvalent metal salt, an organic acid, a cationic compound, and a metal complex, and applications thereof

公开(公告)号：US20160289471A1

公开(公告)日：2016-10-06

申请号：US15005007

申请日：2016-01-25

Applicant: FUJIFILM CORPORATION

Inventor： Yusuke FUJII

IPC: C09D11/322

CPC classification number: C09D11/322 ,  B41J2/01 ,  C09D11/10 ,  C09D11/54

Abstract: A pigment dispersion for ink jetting, including: a pigment (A) represented by the following Formula (A); a pigment (B) represented by the following Formula (B); and water, wherein a content mass ratio of the pigment (A) to the pigment (B) is higher than 1.0. In Formula (A), each of two R1s represents a cyano group and each of two R2s represents a hydrogen atom, or each of two R1s represents a hydrogen atom and each of two R2s represents a tertiary butyl group. In Formula (B), each of two R3s represents a hydrogen atom and each of two R4s represents a chlorine atom, each of two R3s represents a hydrogen atom and each of two R4s represents a hydrogen atom, or each of two R3s represents a hydrogen atom and each of two R4s represents a phenyl group.

公开(公告)号：US20240425715A1

公开(公告)日：2024-12-26

申请号：US18824925

申请日：2024-09-05

Applicant: FUJIFILM Corporation

Inventor： Yusuke FUJII ,  Norihide SHIMOHARA ,  Masaharu KAWAI

IPC: C09D11/52 ,  B41M5/00 ,  B41M7/00 ,  C09D7/80 ,  C09D11/037 ,  C09D11/322

Abstract: An object of the present invention is to provide a manufacturing method of a conductive layer, in which storage stability and jetting stability of an ink are excellent and a conductive layer having excellent conductivity can be formed. The manufacturing method of a conductive layer of the present invention includes a deaeration step of deaerating a conductive ink accommodated in an ink container and a conductive layer forming step of, with an ink jet recording method, applying the deaerated conductive ink onto a substrate by jetting the deaerated conductive ink from a nozzle to form a conductive layer, in which the conductive ink contains at least one material selected from the group consisting of a metal salt, a metal complex, and metal particles, and in a case where a dissolved oxygen amount in the conductive ink before the deaeration step is denoted as a dissolved oxygen amount A and a dissolved oxygen amount in the deaerated conductive ink after the deaeration step is denoted as a dissolved oxygen amount B, a value obtained by subtracting the dissolved oxygen amount B from the dissolved oxygen amount A is larger than 15 mg/L.

公开(公告)号：US20240424817A1

公开(公告)日：2024-12-26

申请号：US18826185

申请日：2024-09-06

Applicant: FUJIFILM Corporation

Inventor： Norihide SHIMOHARA ,  Yusuke FUJII

IPC: B41M3/00 ,  B41M5/00 ,  B41M7/00 ,  C09D11/037 ,  C09D11/52 ,  H05K9/00

Abstract: An object of the present invention is to provide a manufacturing method of a conductor capable of forming a conductive film having excellent rub resistance. Another object of the present invention is to provide a manufacturing method of an electromagnetic wave shielding body, and a conductor.
The manufacturing method of a conductor of the present invention includes an ink preparation step of preparing a first ink containing at least a metal salt or a metal complex and a second ink containing at least a metal salt or a metal complex, a step 1 of forming a first coating film on a substrate using the first ink, and subjecting the first coating film to at least one first curing treatment selected from the group consisting of a heating treatment and a light irradiating treatment to form a first conductive film, and a step 2 of forming a second coating film on the first conductive film using the second ink, and subjecting the second coating film to at least one second curing treatment selected from the group consisting of a heating treatment and a light irradiating treatment to form a second conductive film, in which thicknesses of the first coating film and the second coating film and treatment conditions of the first curing treatment and the second curing treatment satisfy predetermined relational expressions.

公开(公告)号：US20240414839A1

公开(公告)日：2024-12-12

申请号：US18809276

申请日：2024-08-19

Applicant: FUJIFILM Corporation

Inventor： Norihide SHIMOHARA ,  Yusuke FUJII

IPC: H05K1/02 ,  H05K3/12

Abstract: Provided is a manufacturing method of a printed circuit board, which has excellent coverage of an electromagnetic wave shielding layer and excellent electromagnetic wave shielding characteristics. A manufacturing method of a printed circuit board that includes a printed wiring board having a ground wiring line, at least one semiconductor device mounted in a region surrounded by the ground wiring line on the printed wiring board, an insulating layer that embeds at least one of the semiconductor device, is disposed inside the ground wiring line, and has an inclined part at an outer edge, and an electromagnetic wave shielding layer disposed on the insulating layer, the method includes a step of forming, on the printed wiring board on which the semiconductor device is mounted, a layer by gradually reducing an outer edge of a jetting region of an insulating ink from a printed wiring board side such that the inclined part is formed to form the insulating layer having the inclined part, in a case where the layer is laminated by performing a step of forming the layer by jetting the insulating ink with an ink jet a plurality of times; and a step of forming, on the insulating layer, the electromagnetic wave shielding layer by jetting a conductive ink with an ink jet.

公开(公告)号：US20240186261A1

公开(公告)日：2024-06-06

申请号：US18402676

申请日：2024-01-02

Applicant: FUJIFILM Corporation

Inventor： Yusuke FUJII

IPC: H01L23/552 ,  H01L21/56 ,  H01L25/065 ,  H01L25/16 ,  H05K1/02 ,  H05K1/18 ,  H05K3/22

CPC classification number: H01L23/552 ,  H01L21/56 ,  H05K1/0218 ,  H05K1/185 ,  H05K3/22 ,  H01L25/0655 ,  H01L25/16 ,  H05K2201/10015 ,  H05K2201/10166 ,  H05K2203/1366 ,  H05K2203/1469

Abstract: Provided are an electronic device including: a wiring board having a mounting surface; a plurality of electronic components mounted on the mounting surface; a ground electrode that surrounds at least one electronic component among the plurality of electronic components; an insulating protective layer that covers the at least one electronic component; an electromagnetic wave shielding layer that covers the insulating protective layer and is electrically connected to the ground electrode, the electromagnetic wave shielding layer being a solidified product of an ink for forming an electromagnetic wave shielding layer; and an insulating partition wall that is provided along an outer edge of the ground electrode, and a manufacturing method thereof.

公开(公告)号：US20230257604A1

公开(公告)日：2023-08-17

申请号：US18306242

申请日：2023-04-25

Applicant: FUJIFILM CORPORATION

Inventor： Yusuke FUJII ,  Kazuhiro YOKOI ,  Yohei TAKAHASHI

IPC: C09D11/101 ,  B41M5/42

CPC classification number: C09D11/101 ,  B41M5/426

Abstract: An image recording method includes applying a conductive ink onto a base material by using an ink jet recording method and performing ultraviolet irradiation on the conductive ink applied onto the base material to form a conductive layer, in which a content of a liquid component of the conductive ink at a time when the ultraviolet irradiation begins is 5% by mass or more with respect to a content of the liquid component of the conductive ink at a time when the conductive ink is applied onto the base material.

公开(公告)号：US20210094325A1

公开(公告)日：2021-04-01

申请号：US17120270

申请日：2020-12-14

Applicant: FUJIFILM Corporation

Inventor： Yusuke FUJII ,  Ayato SATO ,  Takeshi MIYATO

IPC: B41J11/00 ,  B41J2/14

Abstract: An image recording method includes determining whether a surface energy of a base material is less than 50 mN/m or greater than 50 mN/m; deciding a condition for drying a pretreatment liquid containing water and an aggregating agent as a condition A in which the mass ratio of the mass of the pretreatment liquid after being dried to the mass of the pretreatment liquid before being dried is 30% or greater and deciding a condition for drying the pretreatment liquid as a condition B in which the mass ratio thereof is less than 50% in a case where the surface energy is determined to be less than 50 mN/m and 50 mN/m or greater, respectively; applying the pretreatment liquid to the base material; drying the applied pretreatment liquid under the drying condition decided; and applying an ink containing water and a colorant to at least a part of the base material.

公开(公告)号：US20200216703A1

公开(公告)日：2020-07-09

申请号：US16821992

申请日：2020-03-17

Applicant: FUJIFILM Corporation

Inventor： Yusuke FUJII ,  Takeshi MIYATO ,  Ayato SATO

IPC: C09D11/54 ,  C09D11/322 ,  C09D11/38 ,  C09D11/36 ,  B41J2/01

Abstract: Provided are an image forming method including a step of preparing an ink which contains water and an organic solvent A having a vapor pressure of 0.20 kPa or less at 20° C. and in which a content of the organic solvent A is 10% by mass or greater, a step of preparing an aggregating liquid containing an aggregating agent, a step of preparing an overcoat liquid which contains a resin and an organic solvent B having a vapor pressure of 2.50 kPa or greater at 20° C. and in which a content of the organic solvent B is 10% by mass or greater, a step of applying the aggregating liquid onto an impermeable base material, a step of applying the ink to at least a portion of a region to which the aggregating liquid has been applied according to an ink jet method to form an image, and a step of applying the overcoat liquid onto the region to which the aggregating liquid has been applied in the impermeable base material, on which the image has been formed; and an ink set.