公开(公告)号：US20210001516A1

公开(公告)日：2021-01-07

申请号：US17026286

申请日：2020-09-20

Applicant: FUJIFILM Corporation

Inventor： Satoshi CHAI ,  Toshihiro USA

IPC: B29C33/38 ,  B29C39/02 ,  C25D1/10 ,  B29C45/14 ,  B29C59/02

Abstract: Provided are a production method of a mold having a recessed pedestal pattern for preventing a liquid flow and a manufacturing method of a pattern sheet. A production method of a mold having a recessed pedestal pattern, has: a step of preparing an insert mold having a protruding needle pattern group; a step of preparing a mold having a first mold provided with a protruding pedestal shape and a second mold; a holding step of holding the protruding pedestal shape of the first mold and the protruding needle pattern group of the insert mold in an overlapping manner; a clamping step of performing clamping with the first mold and the second mold to form a cavity; and an injection step of filling the cavity with a resin.

公开(公告)号：US20210001102A1

公开(公告)日：2021-01-07

申请号：US17026334

申请日：2020-09-21

Applicant: FUJIFILM Corporation

Inventor： Toshihiro USA ,  Satoshi CHAI

IPC: A61M37/00 ,  B29C45/00 ,  B29C45/17 ,  B29C33/40

Abstract: Provided are a mold for manufacturing a percutaneous absorption sheet that can be detected from an image, and an apparatus and a method for manufacturing a percutaneous absorption sheet having a needle-like protrusion using the mold. The mold is a mold for manufacturing a percutaneous absorption sheet in which a plurality of needle-like recessed portions are disposed, and the problem is solved by a mold for manufacturing a percutaneous absorption sheet in which the mold has a gray color in which a brightness value in a case where a brightness in an HSL (Hue Saturation Lightness) color space is represented in 256 levels is in a range of 30 or more and 200 or less.

公开(公告)号：US20180215078A1

公开(公告)日：2018-08-02

申请号：US15933573

申请日：2018-03-23

Applicant: FUJIFILM Corporation

Inventor： Shotaro OGAWA ,  Satoshi CHAI ,  Kenji ICHIKAWA ,  Kazunori KOMATSU ,  Kozue IKEDA ,  Ryo HIBINO

IPC: B29C33/38 ,  B29C33/40 ,  B29C33/42 ,  B29C41/20 ,  B29C41/42 ,  B29C41/38 ,  C25D1/10

CPC classification number: B29C33/3857 ,  A61M37/00 ,  A61M37/0015 ,  A61M2037/0046 ,  A61M2037/0053 ,  B29C33/40 ,  B29C33/42 ,  B29C41/20 ,  B29C41/38 ,  B29C41/42 ,  B29C43/52 ,  B29K2101/12 ,  B29L2007/00 ,  B29L2031/759 ,  B81C99/00 ,  C25D1/10

Abstract: A production method of a mold includes: preparing a plate precursor having a protruding pattern formed of protrusions in a pattern presence region on a base, and a thermoplastic resin sheet; determining a position at which the plate precursor is to be pressed against the thermoplastic resin sheet by moving the plate precursor and the thermoplastic resin sheet relative to each other; and forming a recessed pattern on the thermoplastic resin sheet by pressing the protrusions of the plate precursor which is heated against the thermoplastic resin sheet at a position where a part of the pattern presence region of the plate precursor excluding the protrusions is separated from a surface of the thermoplastic resin sheet, cooling the plate precursor in a state in where the pressed protrusions and the thermoplastic resin sheet are in contact with each other, and separating the plate precursor from the thermoplastic resin sheet.

公开(公告)号：US20170327963A1

公开(公告)日：2017-11-16

申请号：US15592199

申请日：2017-05-11

Applicant: FUJIFILM Corporation

Inventor： Satoshi CHAI ,  Kenji ICHIKAWA ,  Ryo HIBINO

IPC: C25D1/10 ,  B29C39/36 ,  B29C33/40 ,  B29C33/38 ,  B29C39/26 ,  C25D1/20 ,  B29C39/02 ,  B29L31/00 ,  B29K105/00 ,  B29L7/00

CPC classification number: C25D1/10 ,  A61M2037/0053 ,  B29C33/3857 ,  B29C33/3892 ,  B29C33/40 ,  B29C33/424 ,  B29C39/026 ,  B29C39/26 ,  B29C39/36 ,  B29K2105/0035 ,  B29L2007/00 ,  B29L2031/7544 ,  B29L2031/756 ,  C25D1/20

Abstract: Provided are a production method of a mold, a manufacturing method of a pattern sheet, a production method of an electroform, a production method of a mold using an electroform, and an original. The production method includes: preparing an original having an inclined portion which is formed in an enclosed shape on an outer peripheral portion of a protruding pattern formed at a center portion on a base and gradually increases in thickness from inside toward outside, and a thermoplastic resin sheet; and forming a recessed pattern on the thermoplastic resin sheet by pressing the original which is heated against the thermoplastic resin sheet at a position where a flat surface of the original and a surface of the thermoplastic resin sheet are separated from each other, cooling the original in the state where the original is pressed, and separating the original from the thermoplastic resin sheet.

公开(公告)号：US20230075192A1

公开(公告)日：2023-03-09

申请号：US18049643

申请日：2022-10-26

Applicant: FUJIFILM Corporation

Inventor： Aya MOCHIZUKI ,  Satoshi CHAI ,  Toshihiro USA ,  Kozue IKEDA

IPC: B29C33/38 ,  A61M37/00 ,  B29C33/40

Abstract: A production method of a mold having a recessed pattern includes: a plate precursor preparation step of preparing a plate precursor having a pedestal on which a protruding pattern is disposed; a resin plate preparation step of preparing a thermoplastic resin plate having a recessed step portion; and a resin plate precursor production step of producing a thermoplastic resin plate precursor, the resin plate precursor production step including a positioning step of positioning the protruding pattern of the plate precursor and a center position of the recessed step portion, and a recessed pattern forming step of forming a recessed pattern having an inverted shape of the protruding pattern on the thermoplastic resin plate by pressing the protruding pattern of the heated plate precursor and the pedestal against the recessed step portion, thereafter cooling the plate precursor, and separating the plate precursor from the thermoplastic resin plate.

公开(公告)号：US20200282604A1

公开(公告)日：2020-09-10

申请号：US16807181

申请日：2020-03-03

Applicant: FUJIFILM Corporation

Inventor： Aya MOCHIZUKI ,  Satoshi CHAI ,  Toshihiro USA ,  Kozue IKEDA

IPC: B29C33/38 ,  A61M37/00 ,  B29C33/40

Abstract: Provided are a production method of a mold having a recessed pattern in a recessed step portion capable of preventing a liquid from flowing, and a manufacturing method of a pattern sheet.A production method of a mold having a recessed pattern includes: a plate precursor preparation step of preparing a plate precursor having a pedestal on which a protruding pattern is disposed; a resin plate preparation step of preparing a thermoplastic resin plate having a recessed step portion having a volume equal to or less than a total volume of the protruding pattern and the pedestal; and a resin plate precursor production step of producing a thermoplastic resin plate precursor, the resin plate precursor production step including a positioning step of positioning the protruding pattern of the plate precursor and a center position of the recessed step portion, and a recessed pattern forming step of forming a recessed pattern having an inverted shape of the protruding pattern on the thermoplastic resin plate by pressing the protruding pattern of the heated plate precursor and the pedestal against the recessed step portion, thereafter cooling the plate precursor, and separating the plate precursor from the thermoplastic resin plate.