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公开(公告)号：US20210102268A1
公开(公告)日：2021-04-08
申请号：US16940791
申请日：2020-07-28
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Hiroki OKA , Chikao IKENAGA , Sachiyo MATSUURA , Shogo ENDO , Chiaki HATSUTA , Asako NARITA
Abstract: A method for manufacturing a metal plate, the metal plate including a first surface and a second surface positioned on the opposite side of the first surface, may include a step of rolling a base metal having an iron alloy containing nickel to produce the metal plate. The metal plate may include particles containing as a main component an element other than iron and nickel. In a sample including the first surface and the second surface of the metal plate, the following conditions (1) and (2) regarding the particles may be satisfied: (1) The number of the particles having an equivalent circle diameter of 1 μm or more is 50 or more and 3000 or less per 1 mm3 in the sample, and (2) The number of the particles having an equivalent circle diameter of 3 μm or more is 50 or less per 1 mm3 in the sample.
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公开(公告)号：US20190169733A1
公开(公告)日：2019-06-06
申请号：US16267798
申请日：2019-02-05
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Chikao IKENAGA , Yo SHIMAZAKI , Kentarou SEKI , Hiroki FURUSHOU , Chiaki HATSUTA
Abstract: A deposition mask includes a mask body and a through-hole provided in the mask body and through which a deposition material passes when the deposition material is deposited on a deposition target substrate. The mask body satisfies y≥950 and y≥23x−1280 when an indentation elastic modulus is x (GPa) and a 0.2% yield strength is y (MPa).
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Patent Agency Ranking
13.发明公开公开(公告)号：US20240051267A1
公开(公告)日：2024-02-15
申请号：US18378836
申请日：2023-10-11
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Atsuko TAKAHAGI , Tatsuro ISHITOBI , Chiaki HATSUTA , Makoto KOMUKAI , Mayo SUGANO
IPC: B32B15/08 , B32B15/20 , H01M4/66 , H01M50/145 , H01M50/119
CPC classification number: B32B15/08 , B32B15/20 , H01M4/662 , H01M50/145 , H01M50/119 , H01M50/133
Abstract: Aluminum alloy foil that, when used for battery packaging material, unlikely to develop pinholes or cracks even during molding of battery packaging material, and can exhibit excellent moldability. Aluminum alloy foil, which is for use in battery packaging material, wherein, with respect to cross section obtained by cutting aluminum alloy foil in vertical direction to rolling direction of aluminum alloy foil, which is a vertical direction to surface of aluminum alloy foil, proportion of total area of a {111} plane in total area of crystal planes of face-centered cubic structure, obtained by performing crystal analysis using EBSD method, is 10% or more; and with respect to cross section, a number average grain diameter R (μm) of crystals in face-centered cubic structure, obtained by performing crystal analysis using EBSD method, satisfies following equation: number average grain diameter R≤0.056X+2.0, where X=thickness (μm) of aluminum alloy foil.
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公开(公告)号：US20240030114A1
公开(公告)日：2024-01-25
申请号：US18375193
申请日：2023-09-29
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Masahiro NAGATA , Kazuhiro SHINOZAKI , Masahiro YAMADA , Daisuke OKUYAMA , Chiaki HATSUTA , Kentarou SEKI , Hideto MATSUI , Kazunori OOUCHI
IPC: H01L23/495 , H01L21/48
CPC classification number: H01L23/49582 , H01L21/4828
Abstract: A lead frame includes a plurality of lead portions. At least a part of an upper surface of the lead portion and a sidewall surface of the lead portion is a rough surface having been subjected to roughening treatment. A value of a* in a CIELab color space of the rough surface is within a range from 12 to 19, and a value of b* is within a range from 12 to 17.
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公开(公告)号：US20220121115A1
公开(公告)日：2022-04-21
申请号：US17646351
申请日：2021-12-29
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Hiroki OKA , Sachiyo MATSUURA , Chiaki HATSUTA , Chikao IKENAGA , Hideyuki OKAMOTO , Masato USHIKUSA
Abstract: The metal plate includes a plurality of pits located on the surface of the metal plate. The manufacturing method for a metal plate for use in manufacturing of a deposition mask includes an inspection step of determining a quality of the metal plate based on a sum of volumes of a plurality of pits located at a portion of the surface of the metal plate.
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公开(公告)号：US20200259090A1
公开(公告)日：2020-08-13
申请号：US16494802
申请日：2018-03-30
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Yasuko SONE , Hiroshi KAWASAKI , Yoshinori HIROBE , Katsunari OBATA , Asako NARITA , Hitoshi ISHIRO , Chiaki HATSUTA
Abstract: A vapor deposition mask includes: a metal mask in which a metal mask opening is provided; and a resin mask in which a resin mask opening corresponding to a pattern to be produced by vapor deposition is provided at a position overlapping with the metal mask opening, the metal mask and the resin mask being stacked, wherein an arithmetic average height (Sa) of a surface of the resin mask exposed from the metal mask opening is not more than 0.8 μm.
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17.发明申请公开(公告)号：US20180023182A1
公开(公告)日：2018-01-25
申请号：US15548897
申请日：2016-02-05
Applicant: Dai Nippon Printing Co., Ltd.
Inventor： Chikao IKENAGA , Hiroaki NAKAYAMA , Kazunari IKEDA , Chiaki HATSUTA , Utako OOUCHI
Abstract: The present invention provides a metal sheet, on a first surface of which a resist pattern having a narrow width can be stably provided. This manufacturing method for a metal sheet includes a preparation step of preparing a sheet material comprising an iron alloy that contains nickel. When a composition analysis of the first surface of the metal sheet obtained from the sheet material is performed using X-ray photoelectron spectroscopy, the ratio A1/A2 obtained by the result of the X-ray photoelectron spectroscopy does not exceed 0.4, where A1 is the sum of the peak area value of nickel oxide and the peak area value of nickel hydroxide, and A2 is the sum of the peak area value of iron oxide and the peak area value of iron hydroxide.
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