Metal Mesh Patents (Class 174/357)
  • Patent number: 11015710
    Abstract: An electrically isolating gasket is disclosed wherein a coating layer is disposed on at least one conductive surface, and in some embodiments, on all surfaces or at least all of the conductive surfaces. The electrically isolating gasket includes a core gasket component, a ring seal component, and a non-conductive inner seal component. The coating layer can be, for example, polyimide, polyamide, ceramic, and aluminum oxide.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: May 25, 2021
    Assignee: Garlock Pipeline Technologies, Inc.
    Inventors: Ian Brown, Ryan Buttimer, T. Scott Tanner, Christopher Remley
  • Patent number: 11013150
    Abstract: An electronic device, according to various embodiments of the present invention, may comprise: a housing which comprises a first surface, a second surface facing the opposite direction from the first surface, and a cooling member arranged between the first surface and the second surface; a circuit board which is disposed inside the housing; at least one heating component which is mounted to the circuit board; a shield can which surrounds one portion of the at least one heating component; a conductive member which makes contact with a first surface of the at least one heating component; a first thermal conduction member which diffuses heat from the at least one heating component to a plane direction parallel with the first surface of the heating component; and a second thermal conduction member which makes contact with a first surface of the first thermal conduction member, receives the heat from the first thermal conduction member in a second direction perpendicular to the plane direction, and transfers the h
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: May 18, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Soo Kim, Ji-Woo Lee
  • Patent number: 10985634
    Abstract: Provided is an inverter-integrated rotating electric machine capable of suppressing an influence of electromagnetic noise between a peripheral device and a control circuit board. An inverter-integrated rotating electric machine (1A) includes: a rotating electric machine main body (2); and an inverter device (3A), which is provided to the rotating electric machine main body (2). The inverter device (3A) includes: a heat sink (32) configured to cool switching elements (31); a control circuit board (33), which is provided so as to be opposed to the heat sink (32), and includes a drive circuit configured to drive the switching elements (31); and a metal shield plate (34), which is provided so as to be opposed to the control circuit board (33) in such a manner that the control circuit board (33) is arranged between the metal shield plate (34) and the heat sink (32), and is electrically connected to the heat sink (32).
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: April 20, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hideyuki Sotome, Kazuma Fujiwara, Satoshi Nakamura
  • Patent number: 10912239
    Abstract: It is disclosed an electromagnetic shield (1) and a related method for providing electromagnetic shielding wherein the shield comprises a shielding surface provided with a plurality of electrically conductive elements (2), said plurality of electrically conductive elements (2) being electrically connected to a switching assembly (3) configured to switch said electromagnetic shield (1) between an open configuration, wherein said electrically conductive elements (2) are electrically insulated from one another, and a shorted configuration wherein said electrically conductive elements (2) are electrically connected to each other at a common node (C). When the electrically conductive elements (2) of the electromagnetic shield (1) are switched between the open and shorted configurations, a change of the electromagnetic shielding effectiveness (EMSE) occurs.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 2, 2021
    Assignee: Sanko Tekstil Isletmeleri San. Ve Tic. A.S.
    Inventors: Özgür Cobanoglu, Jitka Eryilmaz, Ertug Erkus, Fatih Donmez, Fehim Caglar
  • Patent number: 10865504
    Abstract: An article of footwear has an upper that includes a knitted component and a sole structure secured to the upper. The knitted component may define a tube formed of unitary knit construction, and a strand may extend through a length of the tube. As another example, the knitted component may have a pair of at least partially coextensive knitted layers formed of unitary knit construction, and a plurality of floating yarns may extend between the knitted layers. In some configurations, the knit type or yarn type may vary in different regions of the knitted component to impart different properties. Additionally, the knitted component may incorporate a thermoplastic yarn that is fused in different regions of the knitted component to impart different properties. A flat knitting process or a variety of other knitting processes may be utilized to form the knitted component.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: December 15, 2020
    Assignee: NIKE, Inc.
    Inventors: Bhupesh Dua, Bruce Huffa, Benjamin A. Shaffer
  • Patent number: 10700015
    Abstract: The electronic control unit ECU includes: a base 2 that has a bottom surface portion 7 on which a printed circuit board 3 is mounted and an opening opposed to the bottom surface portion 7; and a cover 1 that covers at least a part of the bottom surface portion 7 and is engaged with the base 2. Here, the cover 1 includes an overlap portion 5 that is spaced apart from and opposed to a side surface 11 of the base 2, and the overlap portion 5 includes a slit 15.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 30, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yusaku Katsube, Masayuki Kawabata, Shoho Ishikawa, Kentaro Yamanaka
  • Patent number: 10631413
    Abstract: A polymer layering process that encapsulates and protects electronics components with complex and imprecise geometries. The protective layering process provides a combination of a flexible mold and/or a rigid mold that apply close-forming, encapsulating the polymer layers to the electronic components and precision assemblies. Polymer layer protective jackets are shaped to as-populated circuit boards and assemblies, providing tightly fit barriers with fine resolution accommodating imprecise geometries. The protective jackets can be formed in rigid, semi-rigid, or highly flexible polymer films, to protect the circuitry from the elements, CTE mismatches, shock and vibration loads and extreme g-forces, and external electromagnetic emissions. By altering the protect layer configuration, the protective layer can accommodate populated circuit board assembly with high heat generation component(s).
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: April 21, 2020
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Nien-Hua Chao, Carl Foehner
  • Patent number: 10477736
    Abstract: An electromagnetic seal is provided for preventing the transmission of electromagnetic energy between corresponding walls of adjoining building modules. The seal includes a first support extending inwardly from an end of a first building module, a second support extending inwardly from an end of a second building module, and a gasket assembly compressed between the first support and the second support.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: November 12, 2019
    Assignee: Armag Corporation
    Inventors: David Garagnani, Chris Sutton
  • Patent number: 10416729
    Abstract: A hard disk drive mounting assembly that includes a disk drive assembly having a base structure that includes a screw hole and a damping insert at least partially surrounding the screw hole. The disk drive assembly further includes a threaded insert positioned in the screw hole of the damping insert.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: September 17, 2019
    Assignee: Seagate Technology LLC
    Inventors: Hao Sun, Aravind Pitty, Xiong Liu, Ling Ling Zhang
  • Patent number: 10403981
    Abstract: An electromagnetic wave absorber that improves an electromagnetic wave absorption rate in a specific frequency is provided. The electromagnetic wave absorber includes a dielectric layer; a first metal conductive layer disposed on a first surface of the dielectric layer and having a slot positioned symmetrical about a center of the dielectric layer and a second metal conductive layer disposed on a second surface of the dielectric layer.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: September 3, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-University Cooperation Foundation Hanyang University
    Inventors: Wang Gi Hong, Jae Hoon Choi, Eun Jeong, Jin Pil Tak
  • Patent number: 10364517
    Abstract: An article of footwear has an upper that includes a knitted component and a sole structure secured to the upper. The knitted component may define a tube formed of unitary knit construction, and a strand may extend through a length of the tube. As another example, the knitted component may have a pair of at least partially coextensive knitted layers formed of unitary knit construction, and a plurality of floating yarns may extend between the knitted layers. In some configurations, the knit type or yarn type may vary in different regions of the knitted component to impart different properties. Additionally, the knitted component may incorporate a thermoplastic yarn that is fused in different regions of the knitted component to impart different properties. A flat knitting process or a variety of other knitting processes may be utilized to form the knitted component.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: July 30, 2019
    Assignee: NIKE, Inc.
    Inventors: Bhupesh Dua, Bruce Huffa, Benjamin A. Shaffer
  • Patent number: 10240798
    Abstract: A gasket may include a tubular section which has a protection layer and a mesh layer. The protection layer may form a first tube, and the mesh layer may form a second tube, which may be enclosed in the first tube. The mesh layer may be formed by a metal wire in a spiral fashion extending along an axial direction of the second tube. The mesh layer may provide an elastic support to the protection layer when the protection layer tube is pressed by an external force.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 26, 2019
    Inventor: Yueqi Mi
  • Patent number: 9900988
    Abstract: A protective layering process that encapsulates and protects printed circuit board assemblies with complex and imprecise geometries. The protective layering process provides a combination of a flexible mold and/or a rigid mold, which are derived from modified data from a 3 dimensional scan of the printed circuit board assembly, and which applies close-forming, encapsulating polymer layers, electrically non-conductive layers, EMI shielding layers, and/or thermal management layers to the electronic components and circuit board assemblies. Polymer layers and protective jackets are shaped to as-populated circuit boards and assemblies, providing tightly fit barriers with fine resolution accommodating imprecise geometries. The protective jackets/layers can be formed in rigid, semi-rigid, or highly flexible polymer films, to protect the circuitry from the elements, CTE mismatches, shock and vibration loads and extreme g-forces, and from internal and external EMI and to manage thermal dissipation.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: February 20, 2018
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Nien-Hua Chao, John A. Dispenza, Mario DeAngelis
  • Patent number: 9820415
    Abstract: A radio frequency shield door system is provided. The radio frequency shield door system provides an effective RF and electromagnetic seal between a door and the perimeter of the doorway through a continuous interface of conductive or magnetic material between peripheral sealing surface of the door and a perimeter frame of the doorway. The perimeter frame may provide spring-loaded contact rails electrically or magnetically coupled thereto so that when the door is in a closed configuration a RF seal is formed between the interfacing sealing surface and contract rails, yet the door is still readably between an open configuration and closed configuration.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: November 14, 2017
    Inventor: Stephen Vincent Rust
  • Patent number: 9668387
    Abstract: In an electrical shield structure of an electronic device unit and a control panel housing, a metal frame includes a plurality of protrusions having conductivity and having heights to come into contact with the control panel housing. The plurality of protrusions are provided at positions which surround an electronic component. A packing includes a plurality of holes through which the protrusions are inserted at positions corresponding to the positions of the protrusions.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: May 30, 2017
    Assignee: FANUC CORPORATION
    Inventors: Hitoshi Watanabe, Kazuyuki Sasaki, Hideki Okamura
  • Patent number: 9635790
    Abstract: A deflectable gasket assembly for EMI shielding and environmental sealing is described. The gasket assembly is formed from an electrically-conductive mesh sheet positioned between adjacent conductive surfaces. A gasket is provided at the outer boundaries of the mesh sheet for environmental protection. The edge of the gasket has a branched sealing element extending above and below the gasket assembly for contacting the adjacent surfaces. The branched sealing element is deformable and can be used on external aircraft electronic components.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: April 25, 2017
    Assignee: Parker-Hannifin Corporation
    Inventors: Stephen J. Coppola, Michael H. Bunyan, George R. Watchko
  • Patent number: 9617783
    Abstract: To reliably prevent entrance of electro-magnetic waves in a door that closes an opening portion formed in an airframe of an aircraft. A gasket seal 20 which is arranged between an opening portion 12 formed in an airframe of an aircraft and a door 13 for closing the opening portion 12, includes: a gasket seal body that is made of a rubber material; and conductive fiber 24 that covers a surface of the gasket seal body. When the door 13 is in a closed state, the gasket seal 20 whose surface is made conductive is abutted against a striker 30 provided on a skin 11 side of the airframe and made of a conductive material. The door 13 and the skin 11 of the airframe are electrically connected together via the conductive fiber 24 and the striker 30, and electro-magnetic waves can be reliably shielded.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: April 11, 2017
    Assignee: MITSUBISHI AIRCRAFT CORPORATION
    Inventors: Yusaku Yahata, Takashi Yokoi, Keiichiro Doi, Mikishige Ibaragi
  • Patent number: 9386731
    Abstract: A magnetic shield for shielding adjacent coils of an ICPT system. One or more conductors are configured to distribute induced eddy currents from the surface of the shield to below the surface and thus reduce heating due to eddy currents. The magnetic shield may be employed to transfer power over rotary couplings, such as the shaft of a wind turbine.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: July 5, 2016
    Assignee: PowerbyProxi Limited
    Inventors: Daniel Robertson, Kunal Bhargava, Fady Mishriki, Saining Sunny Ren
  • Patent number: 9254588
    Abstract: A polymer layering process that encapsulates and protects electronics components with complex and imprecise geometries. The protective layering process provides a combination of a flexible mold and/or a rigid mold that apply close-forming, encapsulating the polymer layers to the electronic components and precision assemblies. Polymer layer protective jackets are shaped to as-populated circuit boards and assemblies, providing tightly fit barriers with fine resolution accommodating imprecise geometries. The protective jackets can be formed in rigid, semi-rigid, or highly flexible polymer films, to protect the circuitry from the elements, CTE mismatches, shock and vibration loads and extreme g-forces.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: February 9, 2016
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Nien-Hua Chao, John A. Dispenza, Mario DeAngelis
  • Patent number: 9072165
    Abstract: Electronic devices may be provided with conductive structures such as displays and conductive housing walls. Conductive gaskets may be used to form electrical paths between opposing conductive structures in an electronic device. The conductive gaskets may be formed from conductive sheets of material such as conductive fabric sheets. The conductive fabric or other conductive sheets may form conductive gasket wall structures that extend around air-filled cavities in the conductive gaskets. A conductive gasket may have an elongated shape such as a tubular shape that is characterized by a longitudinal axis. The longitudinal axis may follow a straight path or a curved path. To facilitate bending of a hollow conductive gasket to follow a curved path, the wall structures of the gasket may be provided with openings. Cables may be held in place using flaps of gasket wall material and may run through interior portions of a hollow gasket.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: June 30, 2015
    Assignee: Apple Inc.
    Inventors: Anthony P. Nguyen, David P. Tarkington, Peter N. Jezoirek, Rico L. Zorkendorfer
  • Patent number: 8947892
    Abstract: Apparatus, systems and methods for electronic device protection are provided. A particular apparatus includes a non-conductive substrate and a plurality of cells including conductive members coupled to the non-conductive substrate. The conductive members are arranged to form a first discontinuous mesh. Regions between the conductive members of the first discontinuous mesh include a phase change material. The phase change material undergoes a phase transition from substantially non-conductive to substantially conductive responsive to a change of energy.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: February 3, 2015
    Assignee: The Boeing Company
    Inventor: Tai A. Lam
  • Patent number: 8895874
    Abstract: Thin indium-less “optically porous” layers adapted to replace traditional ITO layers are provided herein. A thin metalized film adapted to carry an electrical charge can include a dense pattern of small openings to allow the transmission of light to or from an underlying semiconductor material. The pattern of openings can create a regular or irregular grid pattern of low aspect ratio fine-line metal conductors. Creation of this optically porous metalized film can include the printing of a catalytic precursor material, such as palladium in solution in a pattern on a substrate, drying or curing the catalytic precursor, and the deposition of a thin layer of metal, such as copper on the dried precursor to form the final conductive and optically porous film.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: November 25, 2014
    Assignee: Averatek Corp.
    Inventors: Sunity Kumar Sharma, Alex Newsom Beavers, Jr., Thomas Furst
  • Patent number: 8878079
    Abstract: Compact, high-speed data cable structures that include shielding to protect from electro-magnetic interference (EMI) are disclosed. The cable structures can include the conductors necessary to communicate signals that comply with the HDMI™ standard. The cable structures are formed for use with portable electronic devices and may include specific connectors, such as the 30 pin connector found on many products, such as the iPhone™ from Apple Inc. The cable structures include a micro crimp that enables the cable to be smaller than traditional high-speed data cables. The cable structures also include a shield body housing formed from a pair of virtually identical halves that are mated together to form the housing.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: November 4, 2014
    Assignee: Apple Inc.
    Inventor: Ian P. Colahan
  • Patent number: 8830697
    Abstract: A ground apparatus for connecting components for a portable terminal suppresses the occurrence of noise by grounding a connector. The ground apparatus includes a connector engaging portion at one side of a main board. A connector that includes a grounding portion is inserted into the connector engaging portion. A shield can is disposed to cover at least at part of the main board. The shield can includes a ground structure formed at the connector engaging portion area to enclose the connector and electrically couple the ground structure with the ground portion of the connector.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: September 9, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyung Wook Kim, Byung Kuk Ko
  • Publication number: 20130175080
    Abstract: Compact, high-speed data cable structures that include shielding to protect from electro-magnetic interference (EMI) are disclosed. The cable structures can include the conductors necessary to communicate signals that comply with the HDMI™ standard. The cable structures are formed for use with portable electronic devices and may include specific connectors, such as the 30 pin connector found on many products, such as the iPhone™ from Apple Inc. The cable structures include a micro crimp that enables the cable to be smaller and more than traditional high-speed data cables. The cable structures also include a shield body housing formed from a pair of virtually identical halves that are mated together to form the housing.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 11, 2013
    Applicant: APPLE INC.
    Inventor: Ian P. Colahan
  • Patent number: 8325495
    Abstract: Apparatus, systems and methods for electronic device protection are provided. A particular apparatus includes a non-conductive substrate and a plurality of cells including conductive members coupled to the non-conductive substrate. The conductive members are arranged to form a first discontinuous mesh, where each conductive member of a cell is separated from conductive members of adjacent cells by a gap and a cavity is defined in the non-conductive substrate at a location of each gap.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: December 4, 2012
    Assignee: The Boeing Company
    Inventors: Tai A. Lam, Minas H. Tanielian
  • Patent number: 8179695
    Abstract: A mirror image shielding structure is provided, which includes an electronic element and a ground shielding plane below the electronic element. The shape of the ground shielding plane is identical to the projection shape of the electronic element, and the horizontal size of the ground shielding plane is greater than or equal to that of the electronic element. Thus, the parasitic effect between the electronic element and the ground shielding plane is effectively reduced, and the vertical coupling effect between electronic elements is also reduced. Furthermore, the vertical impact on the signal integrity of the embedded elements caused by the layout of the transmission lines is prevented.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: May 15, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Uei-Ming Jow, Chin-Sun Shyu, Chang-Sheng Chen, Min-Lin Lee, Shinn-Juh Lai
  • Patent number: 8101931
    Abstract: An RF screen for microwave powered UV lamp systems is provided. The RF screen is formed of a single sheet of conductive material in which a mesh pattern has been formed. The screen includes a non-traditional mesh pattern including individual openings with 3 or more nodes. The RF screen is generally configured to optimize the balance between light transmission and RF energy leakage desired for the particular application. Generally, it is desired that the RF screen has an open area percentage greater than about 80% while limiting RF energy leakage from the microwave powered lamp system to acceptable levels.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: January 24, 2012
    Assignee: Miltec Corporation
    Inventor: Joseph Bernard Blandford, III
  • Patent number: 7931518
    Abstract: The present invention provides a process for preparing a light transmissive electromagnetic wave shielding material having an excellent light transmissive property, an excellent electromagnetic wave shielding property, an excellent appearance property and an excellent legibility by a simple method. A process for the preparation of a light transmissive electromagnetic wave shielding material comprising; (A1) printing a pretreatment agent for electroless plating comprising a noble metal compound and a mixture of silane coupling agent and azole compound or a reaction product thereof in a mesh pattern on a transparent substrate 11 to form a mesh-patterned pretreatment layer 12, and (A2) subjecting the pretreatment layer 12 to electroless plating to form a mesh-patterned metal conductive layer 13 on the pretreatment layer 12.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: April 26, 2011
    Assignee: Bridgestone Corporation
    Inventors: Hidefumi Kotsubo, Tatsuya Funaki, Kiyomi Sasaki
  • Patent number: 7763810
    Abstract: According to various aspects, exemplary embodiments are provided of fabric-over-foam EMI gaskets. In one exemplary embodiment, a fabric-over-foam EMI gasket generally includes a resiliently compressible foam core and an outer electrically-conductive fabric layer. At least one slit extends generally transversely across an upper surface portion of a longitudinally extending region of the gasket.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: July 27, 2010
    Assignee: Laird Technologies, Inc.
    Inventor: Philip van Haaster
  • Patent number: 7732714
    Abstract: An electrically conductive gasket for paint masking. In one embodiment of the present invention, the gasket includes a core, an electrically conductive cover that is applied to the core with adhesive. A film of material is attached to the outer surface of the electrically conductive cover which functions as a removable mask. The various embodiments of the gasket may be fabricated from materials capable of withstanding relatively high temperatures and may be provided in a variety of different shapes.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: June 8, 2010
    Assignee: Jemic Shielding Technology
    Inventors: Clark S. Hammaker, John F. Dietrich
  • Patent number: 7465488
    Abstract: A package including a package substrate, a die-substrate assembly including a substrate including a plurality of layers including a layer having a mesh to stiffen the substrate adapted to mount one or more dice, one or more dice mounted on the substrate and a molding compound to attach the substrate to the package substrate. Various embodiments include a method comprising providing a substrate including a layer having an outer surface, depositing a metal layer on the outer surface, and etching the metal layer to form an opening, the opening enclosing an area on the outer surface to mount one or more dice.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: December 16, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Lee Choon Kuan, Lee Kian Chai
  • Publication number: 20080245561
    Abstract: Housing for shielding from electromagnetic interference, comprising a first housing component with a first VELCRO-type fastening element and a second housing component with a second VELCRO-type fastening element each made of conductive material, wherein an aperture between the first housing component and the second housing component is closed in an electromagnetically-sealing manner by a third VELCRO-type fastening element made of conductive material.
    Type: Application
    Filed: November 8, 2006
    Publication date: October 9, 2008
    Applicant: Rohde & Schwarz GmbH & Co. KG
    Inventor: Josef Meier
  • Patent number: 7402761
    Abstract: Disclosed is an electric conductive gasket including: an electric conductive sheet having a natural pulp base, a soft aluminum foil adhered to a surface of the natural pulp base with an adhesive being interposed therebetween, and a hot melt layer formed on the other surface of the natural pulp base; and a nonconductive elastic member overlapped to be continuously encompassed by the electric conductive sheet, to be adhered by the hot melt layer.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: July 22, 2008
    Assignee: Joinset Co., Ltd.
    Inventor: Sun-Ki Kim
  • Patent number: 7339120
    Abstract: It is an object of the invention to provide an electromagnetic wave shield for attenuating a electric far field while suppressing the attenuation of the vicinal magnetic flux of an electromagnetic wave discharged from a high frequency electromagnetic wave generator. An electromagnetic wave shield according to the invention comprises a plurality of electric conductors, a ground contact for carrying out a connection to a ground, and a lead wire for connecting the electric conductors to the ground contact, the electric conductors being electrically connected to the ground contact through the lead wire, wherein the electric conductors are provided in such a manner that a path reaching the ground contact through the lead wire from an optional point of each of the electric conductors is uniquely determined.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: March 4, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuhiro Notohara, Shinichirou Kaneko, Futoshi Deguchi, Hiroshi Yoshinaga, Shoichi Shimizu
  • Patent number: 7301109
    Abstract: A wear resistant EMI shield includes a metallic film or multiple metallic films, and a carbon-nanotube coating (14) formed on the metallic film or multiple metallic films. The metallic films may include nickel film (12), copper film (13) and NixCu1?x (x=0.62˜0.99) (15) alloy film. In a preferred embodiment, the structure of the wear resistant EMI shield is CNT/Ni/Cu/Ni/. The thickness of metallic film is in the range from 20 to 100 nm and the thickness of carbon-nanotube coating is in the range from 10 to 200 nm. The wear resistant EMI shield may apply to various substrate surfaces (10) of electronic equipment, such as the shell of computer, play-station, wireless equipment, mobile phones, automobiles, airplanes, commercial appliance and consumer products, etc. The wear resistant EMI shield has good wear resistance, EMI shield effect, thin thickness and lightweight.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: November 27, 2007
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Ga-Lane Chen
  • Patent number: 7277300
    Abstract: A vent grid has parallel first electrically-conductive members and parallel second electrically-conductive members intersecting with the first electrically-conductive members. The intersection between the first and second electrically-conductive members is forced to have a larger cross-sectional area. The characteristic impedance thus increases. The electric current flowing through the first and second electrically-conductive members turns over at the boundary between the intersection and the first and second electrically-conductive members. The flow of the electric current is in this manner interrupted. Accordingly, the vent grid fails to induce electromagnetic wave. Moreover, the electrically-conductive piece is merely located at a corner of the opening. Decrease in the percentage of the opening is thus suppressed to the utmost per a unit area. A sufficient airflow can be established through the vent grid. Decrease in the cooling efficiency and performance can be suppressed.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: October 2, 2007
    Assignee: Fujitsu Limited
    Inventors: Shigeo Sakamoto, Kenji Nagase, Kazuaki Taya