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    Transparent antenna stack and assembly
    162.
    发明授权
    Transparent antenna stack and assembly 有权

    公开(公告)号：US12255402B2

    公开(公告)日：2025-03-18

    申请号：US17449469

    申请日：2021-09-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Stephen P. LeBlanc ,  Jeffrey A. Tostenrude ,  Gregory L Abraham ,  Vicki L Richmond

    IPC: H01Q1/38 ,  H01Q9/04 ,  H01Q9/28 ,  H01Q9/40 ,  H01Q21/28

    Abstract: An optically transparent antenna stack includes at least two stacked optically transparent antennas. Each antenna includes an electrically conductive metal mesh including a plurality of interconnected electrically conductive metal traces defining a plurality of enclosed open areas. The metal mesh of each antenna and each lead has a percent open area greater than about 50%. The at least two stacked optically transparent antennas includes a first antenna configured to operate over a first, but not a second, frequency band and a second antenna configured to operate over the second, but not the first, frequency band. The optically transparent antenna stack has an optical transmission of at least about 50% for at least one wavelength in a wavelength range from about 450 nm to about 600 nm.

    Data center infrastructure optimization method based on causal learning
    163.
    发明授权
    Data center infrastructure optimization method based on causal learning 有权

    公开(公告)号：US12253928B2

    公开(公告)日：2025-03-18

    申请号：US17289983

    申请日：2019-11-20

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Gilles J. Benoit

    IPC: G06F11/30 ,  G05B13/02 ,  G05B15/02 ,  G06F1/20 ,  G06F11/34 ,  G06N7/01 ,  H05K7/20

    Abstract: Methods for active data center management by injecting randomized controlled signals in the operational controls of the cooling infrastructure of the data center and receiving response signals corresponding with the injected signals. The injected signals are used to adjust the operational controls of the cooling infrastructure, and the response signals relate to the operational conditions in the data center. Based upon the response signals along with independent and external variables, the randomized signals are continually injected into the cooling infrastructure and fine-tuned based upon the response signals. Optimum or improved parameters for controlling the cooling infrastructure of the data center are determined based upon the signal injections and corresponding responses.

    Composition for Isolating Tissue
    164.
    发明申请
    Composition for Isolating Tissue 有权

    公开(公告)号：US20250082440A1

    公开(公告)日：2025-03-13

    申请号：US18580190

    申请日：2022-07-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Henning Hoffmann ,  Peter Osswald ,  Ruediger Hampe

    IPC: A61C5/82 ,  A61L31/04

    Abstract: The invention relates to a composition for isolating tissue, the composition comprising a radiation curable component A1, preferably being present in an amount of at least 40 wt. % with respect to the composition, the radiation curable component A1 comprising a polyether polyol spacer group having a molecular weight (Mw) of 1,000 to 20,000 g/mol, and at least two (meth)acrylate moieties, photo-initiator, guanidyl containing polymer, carrageenan, optionally softener, optionally dye, optionally filler, optionally additives. The invention also relates to a process for temporarily isolating tissue, the process comprising the steps of providing the composition described in any of the preceding claims, placing the composition in contact with tissue, radiation curing the composition at least partially for a time period T1, optionally moving or adjusting the partially cured composition, optionally radiation curing the partially cured composition for a time period T2, wherein T2>T1, removing the composition from the tissue.

    OPTICAL FILM, OPTICAL CONSTRUCTION, AND DISPLAY SYSTEM
    169.
    发明申请
    OPTICAL FILM, OPTICAL CONSTRUCTION, AND DISPLAY SYSTEM 有权

    公开(公告)号：US20250076555A1

    公开(公告)日：2025-03-06

    申请号：US18950497

    申请日：2024-11-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Bharat R. Acharya ,  Brett J. Sitter ,  Robert D. Taylor ,  Zhicheng Tian ,  James P. DiZio ,  Quinn D. Sanford ,  Kent C. Hackbarth ,  Matthew E. Sousa

    IPC: G02B5/30 ,  G02B1/04 ,  G02B5/26 ,  G06V40/13

    Abstract: An optical construction includes a reflective polarizer and an optical film. The optical film includes a matrix and a plurality of first particles dispersed in the matrix. Each of the matrix and the plurality of first particles includes a silicone polyoxamide and an acrylate polymer. For substantially normally incident light and for at least a first wavelength in a first wavelength range, the reflective polarizer reflects about 60% for a first polarization state and transmits about 40% for an orthogonal second polarization state. For at least a second wavelength in a second wavelength range, each of the reflective polarizer and the optical film transmits about 60% of an incident light for each of the first and second polarization states. For at least the first wavelength, optical film has an optical haze and a depolarization ratio. A ratio of the depolarization ratio to the optical haze is less than 0.1.

    Tape including electrically conductive porous medium
    170.
    发明授权
    Tape including electrically conductive porous medium 有权

    公开(公告)号：US12241008B2

    公开(公告)日：2025-03-04

    申请号：US18560465

    申请日：2021-05-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Hongyu Gan ,  Yan Wu ,  Jie Huang ,  Jing Fang ,  Jeffrey W. McCutcheon

    IPC: C09J9/02 ,  C09J7/21 ,  C09J7/22

    Abstract: A tape includes an electrically conductive adhesive first layer having opposite outermost first and second major surfaces. The first layer includes an electrically conductive porous medium and an adhesive disposed in, and extending through a thickness of, the porous medium to define at the first major surface, first regions of exposed adhesive and first regions of exposed porous medium and to define at the second major surface, second regions of exposed adhesive and second regions of exposed porous medium. The second major surface has a higher fraction of exposed porous medium than the first major surface. The porous medium can be a nonwoven fabric and the regions of exposed porous medium can be regions of exposed fibers.

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