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公开(公告)号：US11541256B2
公开(公告)日：2023-01-03
申请号：US16633708
申请日：2018-08-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Matthew J. Blackford , Zohaib Hameed , Ronald D. Jesme
Abstract: A fall arresting device including a device housing, a shaft within the housing, a rotor assembly rotatably connected to the shaft that includes a drum and a disc having at least one region of a ferromagnetic material, an extendable lifeline connected to the drum, a magnetic sensor positioned stationary relative to the device housing and adjacent to the disc, and a that includes a hard-magnetic material. The magnet positioned stationary relative the device housing and the magnetic sensor, where the magnetic sensor is configured to detect a change in a magnetic field produced by the magnet when the disc rotates about the shaft, the change in the magnetic field induced by the at least one region of the ferromagnetic material being brought within close proximity to the magnet as the disc rotates.
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公开(公告)号：US11848471B2
公开(公告)日：2023-12-19
申请号：US18245240
申请日：2021-09-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Charles L. Bruzzone , Jeffrey A. Tostenrude , Zohaib Hameed , Jeffrey D Keeney
CPC classification number: H01P1/23 , H01Q1/002 , H03C7/022 , H04B1/0475
Abstract: A wireless communication system includes a transmitter configured to transmit at least first and second radio waves having respective different frequencies F1 and F2, an electrically conductive first passive substantially linear medium, an electrically conductive first passive substantially nonlinear medium disposed proximate the first passive substantially linear medium, and a first magnetic film covering at least a portion of the first passive substantially linear medium. When the transmitter transmits the first and second radio waves, the first passive substantially linear and nonlinear media receive the first and second radio waves and generate first and second signals propagating therein at the respective frequencies F1 and F2. At least one intermodulation signal having a frequency F3 equal to nF1+mF2, where m and n positive or negative integers, is generated in the first passive substantially nonlinear medium. The first magnetic film reduces the at least one intermodulation signal by at least 2 dB.
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公开(公告)号：US11119053B2
公开(公告)日：2021-09-14
申请号：US16623883
申请日：2018-06-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zohaib Hameed , Nicholas T. Gabriel , Ronald D. Jesme , Christian Weinmann , Kristin J. Godbey , Bret W. Ludwig , John P. Baetzold
Abstract: Wireless sensing devices including stable near-field antennas are provided. A spacer layer is attached to a portion of the substrate adjacent to the antenna. The spacer layer has a thickness T, a relative permittivity k, and a figure of merit defined as the ratio of T (in micrometers) by k. The spacer layer has the figure of merit no less than 20 (micrometers).
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公开(公告)号：US12230854B2
公开(公告)日：2025-02-18
申请号：US18504212
申请日：2023-11-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Charles L. Bruzzone , Jeffrey A. Tostenrude , Zohaib Hameed , Jeffrey D. Keeney
Abstract: A wireless communication system includes a transmitter configured to transmit at least first and second radio waves having respective different frequencies F1 and F2, an electrically conductive first passive substantially linear medium, an electrically conductive first passive substantially nonlinear medium disposed proximate the first passive substantially linear medium, and a first magnetic film covering at least a portion of the first passive substantially linear medium. When the transmitter transmits the first and second radio waves, the first passive substantially linear and nonlinear media receive the first and second radio waves and generate first and second signals propagating therein at the respective frequencies F1 and F2. At least one intermodulation signal having a frequency F3 equal to nF1+mF2, where m and n positive or negative integers, is generated in the first passive substantially nonlinear medium. The first magnetic film reduces the at least one intermodulation signal by at least 2 dB.
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公开(公告)号：US20210319955A1
公开(公告)日：2021-10-14
申请号：US16949910
申请日：2019-05-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Ankit Mahajan , Saagar A. Shah , Mikhail L. Pekurovsky , Thomas J. Metzler , Kayla C. Niccum , Eric A. Vandre , Aniruddha Upadhye , Robert R. Owings , Jeremy K. Larsen , Zohaib Hameed
IPC: H01G4/33 , H01F17/00 , H01F41/04 , H01C17/075 , H01C7/00 , H01C1/01 , H01C1/034 , H01C17/00 , H01G2/06 , H01G4/005 , H01G4/224
Abstract: Ultrathin and flexible electrical devices including circuit dies such as, for example, a capacitor chip, a resistor chip, and/or an inductor chip, and methods of making and using the same are provided. Circuit dies are attached to a major surface of a flexible substrate having channels Electrically conductive traces are formed in the channels, self-aligned with the circuit dies, and in direct contact with the bottom surface of the circuit dies.
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Patent Agency Ranking
公开(公告)号：US20190334230A1
公开(公告)日：2019-10-31
申请号：US16309186
申请日：2017-06-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Ronald D. Jesme , Nicholas T. Gabriel , Andrew P. Bonifas , Zohaib Hameed
IPC: H01Q1/38 , H04B5/00 , G06K19/077
Abstract: A shielded antenna (100) includes a spiral antenna (110) and a shield (120) disposed on the spiral antenna. The spiral antenna comprises a plurality of substantially concentric loops. The shield comprises a plurality of electrically isolated electrically conductive segments forming a regular pattern, such that in a top plan view, at least one segment overlaps a portion of at least two loops, and at least one pair of adjacent conductive segments defines an electrically insulative gap therebetween.
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公开(公告)号：US12249847B2
公开(公告)日：2025-03-11
申请号：US17309781
申请日：2019-12-13
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zohaib Hameed , Jaewon Kim , Sithya S. Khieu
Abstract: A device is described having one or more conductive loops to produce an electromagnetic field, such as for wireless power transfer to an electronic device. In some examples, an antenna is used with at least one resonating capacitor ring that is relatively co-planar with the antenna, and that is magnetically coupled to the antenna but is not electrically powered by an external source. In addition, a device is described having two or more thin-film coils, each coil comprising a pair of terminals and at least one loop defining a plane and an interior region. In some examples, the planes of the two or more coils are disposed substantially parallel to one another, the interior regions of the two or more coils at least partially overlap one another, and the pairs of terminals of the antennae are electrically connected in parallel.
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公开(公告)号：US20230327308A1
公开(公告)日：2023-10-12
申请号：US18245240
申请日：2021-09-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Charles L. Bruzzone , Jeffrey A. Tostenrude , Zohaib Hameed , Jeffrey D. Keeney
CPC classification number: H01P1/23 , H04B1/0475
Abstract: A wireless communication system includes a transmitter configured to transmit at least first and second radio waves having respective different frequencies F1 and F2, an electrically conductive first passive substantially linear medium, an electrically conductive first passive substantially nonlinear medium disposed proximate the first passive substantially linear medium, and a first magnetic film covering at least a portion of the first passive substantially linear medium. When the transmitter transmits the first and second radio waves, the first passive substantially linear and nonlinear media receive the first and second radio waves and generate first and second signals propagating therein at the respective frequencies F1 and F2. At least one intermodulation signal having a frequency F3 equal to nF1+mF2, where m and n positive or negative integers, is generated in the first passive substantially nonlinear medium. The first magnetic film reduces the at least one intermodulation signal by at least 2 dB.
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公开(公告)号：US10971808B2
公开(公告)日：2021-04-06
申请号：US16309186
申请日：2017-06-14
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Ronald D. Jesme , Nicholas T. Gabriel , Andrew P. Bonifas , Zohaib Hameed
IPC: H01Q1/38 , G06K19/077 , H04B5/00
Abstract: A shielded antenna (100) includes a spiral antenna (110) and a shield (120) disposed on the spiral antenna. The spiral antenna comprises a plurality of substantially concentric loops. The shield comprises a plurality of electrically isolated electrically conductive segments forming a regular pattern, such that in a top plan view, at least one segment overlaps a portion of at least two loops, and at least one pair of adjacent conductive segments defines an electrically insulative gap therebetween.
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公开(公告)号：US20190286963A1
公开(公告)日：2019-09-19
申请号：US16271028
申请日：2019-02-08
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Mohsen Salehi , Benjamin Münstermann , Zohaib Hameed
Abstract: Ultra-high frequency (UHF) antenna tags are described. The antenna tag includes a sensor portion including terminals for attaching a chip and an antenna portion including first and second elements electrically connected to the sensor portion. At least one of the first and second elements includes at least one meandered portion. The sensor portion is responsive to a presence of a dielectric or magnetic material. The antenna tag is configured such that the antenna tag has an input impedance at the terminals substantially matched to a chip impedance. In some embodiments, the antenna tag has a directivity of at least 4 dBi in a predetermined direction and a radiation efficiency of at least 60 percent.
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