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公开(公告)号:US20240150551A1
公开(公告)日:2024-05-09
申请号:US18550489
申请日:2022-03-31
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Tom Gaide , Jens Eichler , Christian Weinmann , Friedrich M. Wolff , Stefan V. Friedrich , Karoline Anne Ostrowski , Adrian S. Eckert , Michael H. Stalder , Philipp Jurgen Semmler , Badri Veeraraghavan , Klaus Hintzer , Jennifer J. Sokol
IPC: C08K9/04 , B29C64/124 , C08K9/02 , H05K9/00 , B29K509/08
CPC classification number: C08K9/04 , B29C64/124 , C08K9/02 , H05K9/0083 , B29K2509/08 , B29K2995/0011 , B29K2995/0063 , C08K2201/003
Abstract: The present disclosure provides compositions, articles, and methods related to altering electromagnetic radiation. An actinic radiation curable precursor composition of a three-dimensional article includes a) a resin comprising an actinic radiation curable component, wherein the resin has a viscosity no greater than 500 cP; b) hollow glass microspheres having a density no greater than 2 g/mL and an average diameter no greater than 200 micrometers; and c) a photoinitiator. At least part of the surface of the hollow glass microspheres comprises a surface coating or modification. An article includes a photo(co)polymerization reaction product of the composition. A method of manufacturing a three-dimensional article includes the steps of a) providing an actinic radiation curable precursor composition; and b) selectively exposing a portion of the composition to a source of actinic radiation to at least partially cure the exposed portion of the composition, thereby forming a cured layer. Steps a) and b) are repeated so as to form a three-dimensional article. A three-dimensional article is provided, obtained according to the method. Methods of interfering with electromagnetic radiation originating from an electromagnetic radiation producing device are provided, including integrating an article into the electronic device or placing an article in the vicinity of the electromagnetic radiation producing device.
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公开(公告)号:US11937043B2
公开(公告)日:2024-03-19
申请号:US17621438
申请日:2020-06-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Sebastian Eggert-Richter , Michael H. Stalder , Christian Weinmann , Benhard C. Schneider , Paul H. R. Jolly
CPC classification number: H04R1/1083 , H04R1/1008 , H04W4/029 , H04R2420/07
Abstract: A hearing protection device is provided. The hearing protection device includes a first earmuff connected to a second earmuff by a headband. Each of the first and second earmuffs are configured to dampen ambient sound. The hearing protection device also includes an antenna, located within a housing of the first earmuff. The antenna comprises a rigid portion coupled to a flexible portion. Both the rigid portion and the flexible portion are fixed within the housing. The flexible portion is configured to remain substantially in line with a ground plane with respect to the rigid portion.
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公开(公告)号:US20220136186A1
公开(公告)日:2022-05-05
申请号:US17433733
申请日:2020-02-21
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Markus G. Lierse , Marcel Doering , Christian Weinmann
Abstract: A radar radiation redirecting inhibition layer for reducing radar cross section (RCS) of radar radiation redirection pavement marking tapes, pavement marking cover tapes incorporating such layer and methods of use are described.
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公开(公告)号:US20210148836A1
公开(公告)日:2021-05-20
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:US10411320B2
公开(公告)日:2019-09-10
申请号:US15565536
申请日:2016-04-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Christian Weinmann , Jaewon Kim , Justin M. Johnson , Dipankar Ghosh , Craig W. Lindsay
Abstract: At least some aspects of the present disclosure feature a communication device for propagating an electromagnetic wave around a blocking structure. The communication device includes a passive coupling device to capture the electromagnetic wave, and a waveguide electromagnetically coupled to the coupling device. The waveguide is disposed around the blocking structure. The waveguide has a resonance frequency matched with the coupling device. The waveguide is configured to propagate the electromagnetic wave captured by the coupling device.
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公开(公告)号:US20180123253A1
公开(公告)日:2018-05-03
申请号:US15565536
申请日:2016-04-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Christian Weinmann , Jaewon Kim , Justin M. Johnson , Dipankar Ghosh , Craig W. Lindsay
CPC classification number: H01P1/2084 , H01P3/122 , H01P3/16 , H01P7/10 , H01Q3/46 , H01Q15/0086 , H01Q19/30 , H04B7/155
Abstract: At least some aspects of the present disclosure feature a communication device for propagating an electromagnetic wave around a blocking structure. The communication device includes a passive coupling device to capture the electromagnetic wave, and a waveguide electromagnetically coupled to the coupling device. The waveguide is disposed around the blocking structure. The waveguide has a resonance frequency matched with the coupling device. The waveguide is configured to propagate the electromagnetic wave captured by the coupling device.
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公开(公告)号:US09960530B2
公开(公告)日:2018-05-01
申请号:US15247491
申请日:2016-08-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Giuliano Bolcato , Jens Weichold , Pasquale Zanoli , Mark Gravermann , Michael H. Stalder , Holger J. Kurzhals , Sebastian Eggert , Christian Weinmann
IPC: H02G15/04 , H01R13/58 , H02G15/184 , G01R15/14 , G01R15/06 , G01R15/16 , G01R19/00 , H01B9/00 , H01R13/66 , H01R43/26 , H02G15/064 , G01R15/18
CPC classification number: H01R13/5845 , G01R15/06 , G01R15/142 , G01R15/16 , G01R15/181 , G01R19/0084 , H01B9/006 , H01R13/6683 , H01R43/26 , H02G15/064 , H02G15/184 , Y10T29/49208
Abstract: A terminal connection device for connecting an end of a medium- or high-voltage power cable to a connection point comprises a) an interface cable having first and second end portions, comprising an inner conductor and a conductive or semiconductive layer; b) a first stress control tube comprising a stress control element, and an insulating layer arranged around the stress control element, wherein the first stress control tube is mounted on the first end portion of the interface cable; c) a first cable connector for connecting the interface cable to the power cable, the first cable connector being connected to the second end portion of the interface cable; and d) one or more tubular shrinkable sleeves, at least a portion of one of the tubular shrinkable sleeves extending over at least a portion of the first stress control tube wherein the portion of the tubular shrinkable sleeve extending over at least a portion of the first stress control tube is shrunk down around at least a portion of the first stress control tube.
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公开(公告)号:US20180068214A1
公开(公告)日:2018-03-08
申请号:US15561211
申请日:2016-03-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Ronald D. Jesme , Andrew P. Bonifas , Nicholas T. Gabriel , Christian Weinmann
IPC: G06K19/077
CPC classification number: G06K19/07758 , G06K19/0775 , G06K19/07754 , G06K19/07783
Abstract: Radio frequency identification (RFID) tags are described that include a substrate, an antenna disposed on a major surface of the substrate, an integrated circuit (IC) disposed on a major surface of the substrate, and one or more stand-alone capacitors disposed on a major surface of the substrate. The antenna may have a length less than about 2 meters between first and second ends of the antenna. The integrated circuit may have an effective capacitance less than about 1000 pF and the one or more stand-alone capacitors may have an equivalent capacitance greater than 500 pF and may be connected in parallel with the antenna and the IC
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公开(公告)号:US20140368221A1
公开(公告)日:2014-12-18
申请号:US14366964
申请日:2012-12-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Christian Weinmann , Holger J. Kurzhals , Michael H. Stalder , Sebastian Eggert , Jens Weichold
CPC classification number: H01R13/5845 , G01R15/06 , G01R15/142 , G01R15/16 , G01R15/181 , G01R19/0084 , H01B9/006 , H01R13/6683 , H01R43/26 , H02G15/064 , H02G15/184 , Y10T29/49208
Abstract: Sensored cable (1) for distribution of electrical power in a power network, the sensored cable comprising an inner conductor and an insulating layer (10) arranged concentrically around at least an axial section of the inner conductor. The sensored cable further comprises a capacitive voltage sensor (100) for sensing a voltage of the inner conductor, characterized by the sensor including a printed circuit board element (60), which is placed over an electrically isolated piece (140) of conductive or semiconductive material, arranged on the insulating layer of the cable. The electrically isolated piece (140) of conductive or semiconductive material is operable to form an electrode of a sensing capacitor of the capacitive voltage sensor. The cable may comprise a (semi-) conductive layer (20). The electrically isolated piece (40) of conductive or semiconductive material may comprise a portion of the (semi-) conductive layer.
Abstract translation: 用于在电力网络中分配电力的感测电缆(1),感测电缆包括内部导体和绝缘层(10),绝缘层(10)同心地布置在内部导体的至少一个轴向部分周围。 感测电缆还包括用于感测内部导体的电压的电容式电压传感器(100),其特征在于,所述传感器包括印刷电路板元件(60),所述印刷电路板元件放置在导电或半导体的电隔离片(140)上 材料,布置在电缆的绝缘层上。 导电或半导体材料的电绝缘片(140)可操作以形成电容式电压传感器的感测电容器的电极。 电缆可以包括(半)导电层(20)。 导电或半导体材料的电隔离件(40)可以包括(半)导电层的一部分。
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