公开(公告)号：US20240317976A1

公开(公告)日：2024-09-26

申请号：US18610295

申请日：2024-03-20

申请人： Versitech Limited ,  Advanced Biomedical Instrumentation Centre Limited

发明人： Lizhi XU ,  Hengjia ZHU ,  Zuochen WANG

IPC分类号： C08K9/04 ,  C08K3/22 ,  C08K7/02 ,  C08L29/04 ,  H01F1/44 ,  A61B34/00

CPC分类号： C08K9/04 ,  C08K3/22 ,  C08K7/02 ,  C08L29/04 ,  H01F1/445 ,  A61B34/73 ,  C08K2003/2275 ,  C08K2201/003 ,  C08K2201/01 ,  C08K2201/011 ,  C08L2205/16

摘要： The present invention provides a class of magnetic hydrogels with tissue-mimetic mechanical properties and photothermal welding/healing capability. In these hydrogels, a hybrid network involving aramid nanofibers, functionalized Fe3O4 nanoparticles, and polyvinyl alcohol (PVA) is accomplished by a stepwise assembly of the functional components. The engineered interactions between nanoscale constituents enable facile materials processing and confer a combination of excellent mechanical properties, magnetism, water content and porosity.

公开(公告)号：US12088208B1

公开(公告)日：2024-09-10

申请号：US18206890

申请日：2023-06-07

申请人： Vicor Corporation

发明人： Patrizio Vinciarelli

IPC分类号： H02M3/335 ,  H01F1/44 ,  H01F3/10 ,  H01F27/28 ,  H01F41/04 ,  H02M1/44 ,  H02M3/337 ,  H05K1/02 ,  H05K1/16 ,  H05K1/18 ,  H05K3/00 ,  H05K3/02 ,  H02M1/00

CPC分类号： H02M3/33523 ,  H01F1/44 ,  H01F3/10 ,  H01F27/2804 ,  H01F41/041 ,  H02M1/44 ,  H02M3/33561 ,  H02M3/33592 ,  H02M3/3376 ,  H05K1/0298 ,  H05K1/165 ,  H05K1/181 ,  H05K3/0011 ,  H05K3/02 ,  H01F1/447 ,  H01F2003/106 ,  H01F2027/2809 ,  H01F2027/2819 ,  H02M1/0058 ,  H02M1/008 ,  H05K1/0204 ,  H05K1/0265 ,  H05K2201/08 ,  H05K2201/086

摘要： A semiconductor package includes a VLSI semiconductor die and one or more output circuits connected to supply power to the die mounted to a package substrate. The output circuit(s), which include a transformer and rectification circuitry, provide current multiplication at an essentially fixed conversion ratio, K, in the semiconductor package, receiving AC power at a relatively high voltage and delivering DC power at a relatively low voltage to the die. The output circuits may be connected in series or parallel as needed. A driver circuit may be provided outside the semiconductor package for receiving power from a source and driving the transformer in the output circuit(s), preferably with sinusoidal currents. The driver circuit may drive a plurality of output circuits. The semiconductor package may require far fewer interface connections for supplying power to the die.

公开(公告)号：US12073029B2

公开(公告)日：2024-08-27

申请号：US18196342

申请日：2023-05-11

申请人： Logitech Europe S.A.

发明人： Cyril Drezet ,  Jan Stoeckli ,  Nicolas Ramond

IPC分类号： G06F3/033 ,  A63F13/245 ,  G06F3/01 ,  G06F3/02 ,  G06F3/0362 ,  H01F1/44 ,  H01F7/02 ,  H01F7/20 ,  H01H13/70 ,  G06F3/0354

CPC分类号： G06F3/0202 ,  A63F13/245 ,  G06F3/016 ,  G06F3/0334 ,  G06F3/0362 ,  H01F1/447 ,  H01F7/0205 ,  H01F7/20 ,  H01H13/70 ,  G06F3/03543

摘要： Aspects of the invention include a computer peripheral device comprising an input element that operates based on a performance characteristic, an electropermanent magnet (EPM) assembly including a permanent magnet configured to generate a magnetic field and a magnetizing assembly configured to set an intensity of the magnetic field generated by the permanent magnet, and a magnetorheological (MR) material coupled to the input element. The MR material has a viscosity that changes based on the magnetic field and affects the performance characteristic of the input element.

公开(公告)号：US20240006104A1

公开(公告)日：2024-01-04

申请号：US18337796

申请日：2023-06-20

申请人： Tsinghua University

发明人： Decai Li ,  Shilin Nie

IPC分类号： H01F1/44

CPC分类号： H01F1/445

摘要： A preparation method of a perfluoropolyether-based magnetic liquid includes dispersing magnetic nanoparticles coated with graphene oxide into a solution of N,N-dimethylformamide to obtain solution A; dispersing a surfactant into dichloromethane, and adding triethylamine as a cosolvent to obtain solution B; mixing the solution A and the solution B uniformly, heating them under reflux and stirring them for a modification reaction; and after the modification reaction is completed, washing and drying a reaction product to obtain the modified magnetic nanoparticles coated with the graphene oxide; dispersing the modified magnetic nanoparticles coated with the graphene oxide into a base carrier liquid to prepare the perfluoropolyether-based magnetic liquid. The surfactant is a perfluoroalkylamine. The base carrier liquid is a perfluoropolyether oil. The modification reaction is performed at a temperature of 50 to 120° C. for a time period of 20 to 50 hours.

公开(公告)号：US11781199B2

公开(公告)日：2023-10-10

申请号：US18173158

申请日：2023-02-23

申请人： University of Florida Research Foundation, Inc. ,  UTBATTELLE, LLC

发明人： Michele Viola Manuel ,  Hunter B. Henderson ,  Orlando Rios ,  Gerard M. Ludtka

IPC分类号： C22C1/10 ,  C25D1/00 ,  C25D15/00 ,  H01F1/047 ,  H01F1/44 ,  H05B6/36 ,  B22F1/07 ,  B22F1/054 ,  B22F1/12 ,  B22F1/00 ,  B22F9/06 ,  B22F9/04 ,  H01F1/00

CPC分类号： C22C1/1084 ,  B22F1/00 ,  B22F1/054 ,  B22F1/07 ,  B22F1/12 ,  B22F9/06 ,  C25D1/00 ,  C25D15/00 ,  H01F1/047 ,  H01F1/442 ,  H05B6/367 ,  B22F2009/042 ,  B22F2202/01 ,  B22F2202/07 ,  B22F2301/058 ,  B22F2302/10 ,  B22F2302/20 ,  B22F2998/10 ,  B22F2999/00 ,  H01F1/0036 ,  B22F2999/00 ,  C22C1/1084 ,  B22F9/04 ,  B22F2202/05 ,  B22F2009/045

摘要： Disclosed herein is a method comprising disposing a container containing a metal and/or ferromagnetic solid and abrasive particles in a static magnetic field; where the container is surrounded by an induction coil; activating the induction coil with an electrical current, to heat up the metallic or ferromagnetic solid to form a fluid; generating sonic energy to produce acoustic cavitation and abrasion between the abrasive particles and the container; and producing nanoparticles that comprise elements from the container, the metal and/or the ferromagnetic solid and the abrasive particles. Disclosed herein too is a composition comprising first metal or a first ceramic; and particles comprising carbides and/or nitrides dispersed therein. Disclosed herein too is a composition comprising nanoparticles comprising chromium carbide, iron carbide, nickel carbide, γ-Fe and magnesium nitride.

公开(公告)号：US11771910B2

公开(公告)日：2023-10-03

申请号：US17124181

申请日：2020-12-16

申请人： The Regents of the University of California

发明人： William J. Agnew ,  William C. Tang ,  Zachary Siu ,  Brittanie Chu ,  Joshua Wang

IPC分类号： A61N1/37 ,  A61N1/378 ,  H02J7/02 ,  H02J50/10 ,  H02J50/00 ,  H01F38/14 ,  A61N1/375 ,  A61N1/362 ,  H01F7/18 ,  H02K1/34 ,  H02K35/02 ,  H02K1/02 ,  H01F1/44

CPC分类号： A61N1/3785 ,  A61N1/362 ,  A61N1/3756 ,  H01F1/44 ,  H01F7/1805 ,  H01F38/14 ,  H02J7/02 ,  H02J50/001 ,  H02J50/10 ,  H02K1/02 ,  H02K1/34 ,  H02K35/02 ,  A61N1/3787

摘要： A recharging system for recharging batteries or providing power to an implantable device includes an electric coil adapted to be coupled to the implantable device, the electric coil defining a coil interior and a coil exterior. A magnetic component is coupled to the electric coil and adapted to at least partially surround the implantable device. A mechanical actuator is attached to the magnetic component, the mechanical actuator converting compression motion into motion of the magnetic component relative to the electric coil.

公开(公告)号：US11630164B2

公开(公告)日：2023-04-18

申请号：US16756014

申请日：2018-10-03

申请人： Hitachi Automotive Systems, Ltd.

发明人： Daisuke Ikarashi ,  Kenji Kubo ,  Michihiro Asanuma

IPC分类号： B60G13/08 ,  G01R31/62 ,  F16F9/18 ,  F16F9/53 ,  H01F1/44 ,  H02M3/335

摘要： Provided are a reliable high-voltage system and a failure diagnosis method thereof, in which a vibration damping mechanism using an electrorheological fluid as a working fluid is a load, and can prevent electric shock due to leakage current and the influence on surrounding electronic devices. There are provided a first circuit that includes a power source and a ground, a second circuit that is magnetically coupled to the first circuit via a transformer and includes a load connected to the ground, a controller that is connected to the ground, a third circuit that is connected to the second circuit and the ground, a first resistor that is provided between a connection point at a high potential end of the second circuit and the ground, and a second resistor that is provided between a connection point at a low potential end of the second circuit and the ground, and has a resistance value different from a resistance value of the first resistor.

公开(公告)号：US20230051048A1

公开(公告)日：2023-02-16

申请号：US17794370

申请日：2021-02-04

申请人： LG CHEM, LTD.

发明人： Eun Bum KIM ,  Ju Hyeon KIM ,  Kwang Joo LEE ,  Jung Hak KIM ,  Yoon Sun JANG

IPC分类号： H01L21/67 ,  H01L21/683 ,  H01F1/44 ,  C09J7/10 ,  C09J11/00

摘要： Disclosed are an apparatus and a method for separating a semiconductor chip disposed on a base member via an adhesive member from the base member. The method includes: a step of providing a push member on a side of the base member opposite to a side on which the semiconductor chip is disposed and moving the push member in a direction adjacent to the semiconductor chip; and a step of separating the semiconductor chip, moved together with the push member, from the base member through a pick-up unit. The adhesive member and the push member are each magnetized such that repulsive forces act on each other.

公开(公告)号：US20220282768A1

公开(公告)日：2022-09-08

申请号：US17752714

申请日：2022-05-24

申请人： KABUSHIKI KAISHA TOSHIBA ,  Toshiba Infrastructure Systems & Solutions Corporation

发明人： Yutaka MARUYAMA ,  Yuji ISHII

IPC分类号： F16F15/03 ,  H01F7/02 ,  H01F7/06 ,  H01F1/44

摘要： A support device of an embodiment includes a magnet unit, a first member, a second member, a magnetic member, and a magnetic fluid. The magnet unit generates a magnetic force. The first member is formed of a non-magnetic material and is disposed in a first direction of the magnet unit. The second member is formed of a non-magnetic material and is disposed in the first direction of the first member. The magnetic member is formed of a magnetic material and is disposed in the first direction of the second member. The magnetic fluid is disposed between the first member and the second member.

公开(公告)号：US11370027B2

公开(公告)日：2022-06-28

申请号：US16692439

申请日：2019-11-22

申请人： University of Florida Research Foundation, Inc. ,  UTBATTELLE, LLC

发明人： Michele Viola Manuel ,  Hunter B. Henderson ,  Orlando Rios ,  Gerard M. Ludtka

IPC分类号： B22F1/00 ,  B22F9/06 ,  C22C1/10 ,  C25D1/00 ,  C25D15/00 ,  H01F1/047 ,  H01F1/44 ,  H05B6/36 ,  B22F1/07 ,  B22F1/054 ,  B22F9/04 ,  H01F1/00

摘要： Disclosed herein is a method comprising disposing a container containing a metal and/or ferromagnetic solid and abrasive particles in a static magnetic field; where the container is surrounded by an induction coil; activating the induction coil with an electrical current, to heat up the metallic or ferromagnetic solid to form a fluid; generating sonic energy to produce acoustic cavitation and abrasion between the abrasive particles and the container; and producing nanoparticles that comprise elements from the container, the metal and/or the ferromagnetic solid and the abrasive particles. Disclosed herein too is a composition comprising first metal or a first ceramic; and particles comprising carbides and/or nitrides dispersed therein. Disclosed herein too is a composition comprising nanoparticles comprising chromium carbide, iron carbide, nickel carbide, γ-Fe and magnesium nitride.