Grid Patents (Class 174/392)
  • Patent number: 10959335
    Abstract: A method for manufacturing a transparent conductive film includes: using a mold to stamp on a transparent insulating substrate to obtain continuous grooves; or coating a gel layer on a transparent insulating film, then using a mold to stamp on one plane of the gel layer which is away from the transparent insulating film, so as to form solidified grooves; filling the grooves with conductive materials to generate a conductive layer, i.e., an inner circuit; forming an outer circuit on the surface in contact with the conductive layer; removing the unnecessary conductive materials in the inner and outer circuit in accordance with a preset graphic to form insulating channels, and insulating lines; obtaining a transparent conductive film. Screen printing and embedded nano-imprinting are combined, and a unified grid filling system is used as a general-purpose mold to manufacture a transparent conductive film.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: March 23, 2021
    Assignees: IVTOUCH CO., LTD., SOOCHOW UNIVERSITY
    Inventors: Linseng Chen, Xiaohong Zhou
  • Patent number: 10446316
    Abstract: A coil device includes a first coil portion which faces a second coil portion of another coil device and has a conductive wire, and at least one non-magnetic member disposed on an opposite side from a side facing the second coil portion. The non-magnetic member includes an eddy current interrupter for changing a state of an eddy current formed in the non-magnetic member by interrupting a portion of the eddy current.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: October 15, 2019
    Assignee: IHI CORPORATION
    Inventors: Kentarou Furiya, Susumu Tokura, Masakazu Hara, Jun Araki
  • Patent number: 10400364
    Abstract: A fabric-based item may have fabric with conductive strands and insulating strands. The conductive strands may form conductive signal paths and may be coupled to control circuitry. The conductive strands and insulating strands may be woven in a construction that allows multiple conductive strands to contact one another to form a low resistance signal path such as a power line, a data line, or a ground line. The fabric may have a two up and three down twill pattern, a two up and three down twill pattern, or other suitable pattern. The pattern may be selected so that groups of conductive weft strands or groups of conductive warp strands are in contact with one another. The conductive strands may have greater density than the insulating strands. For example, if the weft strands are conductive, the fabric may have a higher number of picks per inch than ends per inch.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: September 3, 2019
    Assignee: Apple Inc.
    Inventors: Kirk M. Mayer, Yohji Hamada, Daniel A. Podhajny, Daniel D. Sunshine
  • Patent number: 9997464
    Abstract: An embodiment device includes an integrated circuit die and a first metallization pattern over the integrated circuit die. The first metallization pattern includes a first dummy pattern having a first hole extending through a first conductive region. The device further includes a second metallization pattern over the first metallization pattern. The second metallization pattern includes a second dummy pattern having a second hole extending through a second conductive region. The second hole is arranged projectively overlapping a portion of the first hole and a portion of the first conductive region.
    Type: Grant
    Filed: August 1, 2016
    Date of Patent: June 12, 2018
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cheng-Hsien Hsieh, Li-Han Hsu, Wei-Cheng Wu, Hsien-Wei Chen, Der-Chyang Yeh, Chi-Hsi Wu, Chen-Hua Yu
  • Patent number: 9618228
    Abstract: An improved airflow delivery system (1) comprising an air moving element (3) configured to move air in a flow path, a chamber (19) in the flow path configured to receive product (9), an air transfer chamber (11) comprising an inlet (10) of a selected area for receiving air in the flow path in a first direction (x-x) and an outlet (14) of a selected area greater than the area of the inlet for discharging air in the flow path in a second direction (y-y) different from the first direction, an airflow divider (33) extending across the air transfer outlet and configured to divide airflow in the flow path, an airflow directional (15) extending across the flow path downstream of the airflow divider and upstream of the chamber, the airflow directional having an upstream inlet face (28a) and a downstream outlet face (29c) and configured to receive airflow at the inlet face and split the airflow into multiple separated sub-paths (27) within the flow path and to discharge the airflow from the downstream outlet face subs
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: April 11, 2017
    Assignee: Harper International Corporation
    Inventors: Renee M. Bagwell, William J. Stry
  • Patent number: 9154866
    Abstract: Fibers may be intertwined to form structures for electronic devices and other parts. Fibers may be intertwined using computer-controlled braiding, weaving, and knitting equipment. Binder materials may be selectively incorporated into the intertwined fibers. By controlling the properties of the intertwined fibers and the patterns of incorporated binder, structures can be formed that include antenna windows, sound-transparent and sound-blocking structures, structures that have integral rigid and flexible portions, and tubes with seamless forked portions. Fiber-based structures such as these may be used to form cables and other parts of headphones or other electronic device accessories, housings for electronic devices such as housings for portable computers, and other structures.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: October 6, 2015
    Assignee: APPLE INC.
    Inventors: David Bibl, Matthew Rohrbach, Peter Russell-Clarke
  • Publication number: 20150101860
    Abstract: A method includes permitting a first signal having a first electromagnetic waveform to pass through an apparatus. The method further includes blocking a second signal having a second electromagnetic waveform at the apparatus, wherein the second electromagnetic waveform is different than the first electromagnetic waveform. The apparatus includes a non-conductive substrate and a plurality of cells including conductive members coupled to the non-conductive substrate, where the conductive members are arranged to form a first discontinuous mesh, where regions between the conductive members of the first discontinuous mesh include a phase change material, and where the phase change material undergoes a phase transition from substantially non-conductive to substantially conductive.
    Type: Application
    Filed: December 19, 2014
    Publication date: April 16, 2015
    Inventor: Tai A. Lam
  • Patent number: 9000309
    Abstract: An electromagnetic shielding film comprises a conductive portion and an opening portion, and a moire preventing part is formed in the opening portion. The moire preventing part may be formed approximately at the center of the opening portion, and may be formed on a line connecting intersections facing each other in the conductive portion in the mesh pattern. The moire preventing part may have a substantially circular planar shape or a polygonal planar shape (such as a quadrangular, pentagonal, hexagonal, or octagonal shape). Of course the moire preventing part may have an at least partially curved planar shape. The electromagnetic shielding film preferably satisfies the inequality 0.1Sa?Sb?5.0Sa, in which Sa is the area of the intersection of the conductive portion and Sb is the area of the moire preventing part.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: April 7, 2015
    Assignee: Fujifilm Corporation
    Inventors: Ryuji Saneto, Megumi Sekiguchi, Hiroshi Ishizuka
  • Publication number: 20150061942
    Abstract: Provided is a translucent conductive patterned member in which, as the metal pattern portion itself has a translucency, the metal pattern portion is hardly visible, and scattering caused by a moiré or diffraction is reduced, and in which it is also provided with sufficient conductivity. The translucent conductive patterned member is provided with a base layer formed by using a compound containing a nitrogen atom and a conductive pattern portion having a translucency in which the conductive pattern portion is formed on at least one part of the base layer by using silver or an alloy containing silver as a main component.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 5, 2015
    Inventor: Hirokazu Koyama
  • Patent number: 8957326
    Abstract: A composite dual blackened copper foil includes a copper foil and two blackened layers. The copper foil has a shiny side and a matte side. The blackened layers are formed on the shiny and matte sides respectively. The blackened layers are formed alloy by electroplating in a plating bath consisting essentially of copper, cobalt, nickel, manganese, magnesium and sodium ions. A rough layer is selectively formed between the blackened layer and the shiny side as well as the matte side. Both side of the copper foil is spotless, powder free, and good in etching quality. The copper foil is effective at blocking electromagnetic wave, near infrared, undesired light and the like. The copper foil exhibits strong light absorption and is applicable to direct gas laser drilling. A method of manufacturing the composite dual blackened copper foil is also provided.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: February 17, 2015
    Assignee: Nan Ya Plastics Corporation
    Inventors: Ming-Jen Tzou, Kuo-Chao Chen, Pi-Yaun Tsao
  • Patent number: 8680406
    Abstract: A radiation-proof laminate for electronic devices has: a substrate layer consisting of an electrically conductive material, and a first radiation barrier layer formed on the substrate layer, wherein the first radiation barrier layer comprises 50 wt % to 70 wt % of rubber-based heat-bonding adhesive compound in the form of powder or liquid, 5 wt % to 20 wt % of aluminum powder, 5 wt % to 20 wt % of copper powder, and 5 wt % to 20 wt % of silver powder; wherein the aluminum, copper, and silver powder are mediated by the rubber-based heat-bonding adhesive compound to disperse and form a mesh-like distribution. The radiation-proof laminate can absorb electromagnetic radiation from the electronic device and redirect RF radiation while maintaining the RF signal strength not to be substantially affected or attenuated by the radiation-proof laminate, to maintain the network connection performance of the electronic device.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: March 25, 2014
    Assignee: Trend Power Limited
    Inventor: Kok Tshun Chua
  • Patent number: 8426749
    Abstract: An electromagnetic shielding film comprises a conductive portion and an opening portion, and a moire preventing part is formed in the opening portion. The moire preventing part may be formed approximately at the center of the opening portion, and may be formed on a line connecting intersections facing each other in the conductive portion in the mesh pattern. The moire preventing part may have a substantially circular planar shape or a polygonal planar shape (such as a quadrangular, pentagonal, hexagonal, or octagonal shape). Of course the moire preventing part may have an at least partially curved planar shape. The electromagnetic shielding film preferably satisfies the inequality 0.1 Sa?Sb?5.0 Sa, in which Sa is the area of the intersection of the conductive portion and Sb is the area of the moire preventing part.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: April 23, 2013
    Assignee: Fujifilm Corporation
    Inventors: Ryuji Saneto, Megumi Sekiguchi, Hiroshi Ishizuka
  • Patent number: 8395059
    Abstract: The present invention is to provide an electromagnetic wave shielding material including a transparent substrate and a convex pattern layer composed of a conductive composition formed in a prescribed pattern on the transparent substrate, wherein the conductive composition contains conductive particles and a binder resin; and in observation of a transverse cross section of the convex pattern layer by electron microscopic photography, at least a part of the conductive particles has a fused continuation and a method for manufacturing the same.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: March 12, 2013
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Yuichi Miyazaki, Yuusuke Satou, Shinya Kiura, Yukihiro Kyouden, Yusuke Hagiwara, Takeshi Nisizono, Takeaki Imaizumi
  • Patent number: 8323768
    Abstract: An electromagnetic shield has a first patterned or apertured layer having non-conductive materials and conductive material and a second patterned or apertured layer having non-conductive materials and conductive material. The conductive material may be a metal, a carbon composite, or a polymer composite. The non-conductive materials in the first patterned or apertured layer may be randomly located or located in a predetermined segmented pattern such that the non-conductive materials in the first patterned or apertured layer are located in a predetermined segmented pattern with respect to locations of the non-conductive materials in the second patterned or apertured layer.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: December 4, 2012
    Assignee: Medtronic, Inc.
    Inventors: Patrick R. Connelly, Michael L. Weiner, Victor R. Miller, Jeffrey L. Helfer
  • 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: 8283577
    Abstract: Intended is to provide an electromagnetic shielding material having a conductive layer pattern by transferring a conductive composite to a transparent base material, and an electromagnetic shielding material having a metal layer formed on the transferred conductive layer. The electromagnetic shielding material is free from the troubles such as the breaking of wire, the non-conforming shape or the low contact, which is based on the non-conforming transfer of the conductive composite. The electromagnetic shielding material comprises a transparent base material, a primer layer formed over the transparent base material, and a conductive layer formed in a predetermined pattern on the primer layer. In the primer layer, a portion having the conductive layer formed therein has a thickness larger than the thickness of a portion without the conductive layer.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: October 9, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Nobuo Naito, Hironori Kamiyama, Nozomi Kaga, Yuichi Miyazaki, Takeshi Nishizono, Hidetsugu Tazawa, Shinya Kiura
  • Patent number: 8227712
    Abstract: A filter for a display device is provided which includes a base substrate, an electromagnetic shielding layer formed on one surface of the base substrate to block electromagnetic waves, and an electrode formed along at least two sides among four sides of the base substrate to earth the electromagnetic shielding layer, thereby reducing the manufacturing costs while maintaining the capability of blocking electromagnetic waves.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: July 24, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Ji Yoon Seo, Dong Hyun Park, Jin Sung Lim, Dae Chul Park
  • Patent number: 8164911
    Abstract: A lightweight radio/CD player for vehicular application is virtually “fastenerless” and includes a case and frontal interface formed of polymer based material that is molded to provide details to accept audio devices such as playback mechanisms (if desired) and radio receivers, as well as the circuit boards required for electrical control and display. The case and frontal interface are of composite structure, including an insert molded electrically conductive wire mesh screen that has been pre-formed to contour with the molding operation. The wire mesh provides EMC, RFI, BCI and ESD shielding and grounding of the circuit boards via exposed wire mesh pads and adjacent ground clips. The major components and subassemblies self-interconnect by integral guide and connection features effecting “slide lock” and “snap lock” self-interconnection. The major components and subassemblies self-ground by establishing an interference fit with exposed, resilient, embossed portions of wire mesh.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: April 24, 2012
    Assignee: Delphi Technologies, Inc.
    Inventor: Edgar Glenn Hassler
  • Patent number: 8115116
    Abstract: A casing with a shielding function, a method for manufacturing the same and an electronic device using the same are disclosed. The electronic device has at least an electronic element and a casing. The casing includes a casing substrate and a film integrally formed with the casing substrate via an in-mold decoration process. The film includes a shielding layer for providing an electromagnetic shielding function for the electronic element and an adhesive layer for combining the casing substrate and the shielding layer.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: February 14, 2012
    Assignee: Asustek Computer Inc.
    Inventor: Chih-Pin Chen
  • Patent number: 8067702
    Abstract: The production process of an electromagnetic wave shielding material of the present invention comprises screen printing a conductive paste containing conductive particles, binder and solvent in a geometrical pattern on the surface of a transparent porous layer of a transparent resin substrate provided with the transparent porous layer, the porous layer containing as a main component thereof at least one type selected from the group consisting of an oxide ceramic, a non-oxide ceramic and a metal, followed by forming a conductive portion in a geometrical pattern on the surface of the transparent porous layer by heat treatment. An electromagnetic wave shielding material produced according to this production process has high electromagnetic wave shielding effects and superior transparency and visibility.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: November 29, 2011
    Assignees: Gunze Limited, DIC Corporation
    Inventors: Wataru Suenaga, Atsushi Okada, Kohtaro Tanimura
  • Patent number: 8035039
    Abstract: There are provided an electromagnetic shielding sheet and a plasma display apparatus. The electromagnetic shielding sheet includes a base sheet; a first layer on a first surface of the base sheet, the first layer including first and second patterns crossing each other; and a second layer on a second surface of the base sheet, the second layer including a third pattern. The first and second patterns include a conductive material, the third pattern includes a light absorbing material, and at least one of the first and second patterns is grounded.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: October 11, 2011
    Assignee: LG Electronics Inc.
    Inventors: Hong Rae Cha, Gi Jin Kwon, Eun Seong Seo, Jin Woo Park, Woon Seo Shin, Joon Kwon Moon, Ji Hoon Sohn
  • Patent number: 7968804
    Abstract: An article includes a polymeric film having a major surface, a discontinuous layer of a catalytic material on the major surface, and a metal pattern on the catalytic material. The discontinuous layer of catalytic material has an average thickness of less than 200 angstroms. Methods of forming these articles are also disclosed.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: June 28, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Matthew H. Frey, Tracie J. Berniard, Roxanne A. Boehmer
  • Patent number: 7964803
    Abstract: A magnetic shield structure having openings, the structure comprising a plurality of similar magnetic blind bodies 2, each blind body 2 having an imaginary blind core plane F and a plurality of magnetic material slats 1 being spaced from each other by a distance d required for magnetic shielding, each slat 1 intersecting the blind core plane F at a longitudinal central axis C thereof, the longitudinal central axes of the slats are oriented substantially in parallel to each other on the blind core plane F. The blind bodies 2a, 2b are coupled in a row by serially coupling each slat 1 in each blind body 2a to a corresponding slat 1 of adjacent blind body 2b through overlapping or abutting of slat terminal portions, whereby the blind core planes Fa, Fb of the blind bodies 2a, 2b are so coupled as to define a successive magnetic shield plane, and spaces d between adjacent slats 1 in each blind body 2a, 2b form openings in the magnetic shield structure.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: June 21, 2011
    Assignees: Nippon Steel Corporation, Nippon Steel Engineering Co., Ltd., Kajima Corporation
    Inventors: Takeshi Saito, Masanori Karikomi, Masanori Niwa, Hiroshi Ishikawa, Satoru Miura, Masahiro Fujikura, Akira Sakaida, Yoneo Yamada, Kentaro Chikuma
  • Patent number: 7749686
    Abstract: A method for producing a conductive film, which comprises: exposing and developing a light-sensitive material comprising a support and thereon an emulsion layer containing a silver salt emulsion to form a metallic silver; and then subjecting the light-sensitive material to a smoothing treatment (such as a calender treatment).
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: July 6, 2010
    Assignee: Fujifilm Corporation
    Inventors: Akira Ichiki, Joh Kumura
  • Publication number: 20100164358
    Abstract: A filter for a plasma display includes an electromagnetic interference shielding mesh formed on a substrate to shield electromagnetic waves and a hard coating layer made of inorganic material formed on the electromagnetic interference shielding mesh. The filter is fabricated so as to provide a reduced thickness of a plasma display, to prevent cracks from being generated on surfaces of the mesh and to reduce manufacturing costs.
    Type: Application
    Filed: December 18, 2009
    Publication date: July 1, 2010
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jinyoung Lee, Sungyong Lee, Jaeyoung Park, Jaehyung Kim, Dohyukl Kwon
  • Patent number: 7737370
    Abstract: An electromagnetic shielding filter has two transparent boards and a conductive mesh with plural wires, where the conductive mesh is sandwiched between the two transparent boards. The plural wires are formed of a Cu—Sn—In alloy or a Cu—Ag alloy.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: June 15, 2010
    Assignee: Hitachi Cable, Ltd.
    Inventors: Seigi Aoyama, Toshiyuki Horikoshi, Hiromitsu Kuroda, Yuzo Ito, Hiroshi Komuro, Hiroshi Okikawa
  • Patent number: 7732038
    Abstract: An electromagnetic wave shielding filter 10 comprises a transparent substrate 1, and a mesh layer 3 containing an electrically conductive layer 2, formed on the transparent substrate 1 with a transparent adhesive layer 9. A transparent colored resin layer 4 containing a coloring agent is formed on the mesh layer 3, with a transparent barrier layer 5 interposed between the two layers. An anticorrosive layer 6 and a blackening layer 7 are formed on the electrically conductive layer 2 in the mesh layer 3. The transparent colored resin layer 4 also serves as an adhesive layer, and a functional layer 8, such as an optical filter, a protective sheet, or a display front substrate, is further laminated to the transparent colored resin layer 4.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: June 8, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Nobuo Naito, Fumihiro Arakawa
  • Patent number: 7709751
    Abstract: Disclosed is a method for making a film assembly used in a PDP filter positioned on the front surface of a PDP, a film assembly manufactured by the method, and a PDP filter using the film assembly. The method includes providing a roll of an EMI film formed on a surface of a long transparent polymer resin film with a predetermined spacing and mounting the wound roll of the EMI film on a first feed roller; providing a roll of at least one long transparent functional film capable of covering at least partially the effective screen portions of the EMI film and mounting the wound roll of the functional film on a second feed roller which is spaced a predetermined distance from the first feed roller; and integrating the EMI film with the functional film by feeding them into a gap between the first and second compression rollers.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: May 4, 2010
    Assignee: LG Chem, Ltd.
    Inventors: Dong-Wook Lee, In Seok Hwang, Yeon Keun Lee, Sang Hyun Park, Jung Doo Kim, Hyun Seok Choi, Su Rim Lee
  • Publication number: 20100059365
    Abstract: A process for manufacturing a mask having submillimetric openings on a surface portion of a substrate, characterized in that: a layer known as a mask layer is deposited from a solution of colloidal particles that are stabilized and dispersed in a solvent; and the drying of the mask layer is carried out until a two-dimensional irregular network of substantially straight-edged interstices that gives a mask is obtained, with a random mesh of interstices in at least one direction. Submillimetric grid obtained by the process.
    Type: Application
    Filed: March 21, 2008
    Publication date: March 11, 2010
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Emmanuel Valentin, Bernard Nghiem, Arnaud Huignard, Georges Zagdoun, Eddy Royer
  • Patent number: 7674972
    Abstract: A braided shield includes a housing formed from a plurality of wires braided together and having a dual-layer configuration. The housing has an outer layer integrally formed with an inner layer. A support is at least partially disposed in the housing, and the inner layer is disposed between the support and the outer layer. The inner layer and outer layer reduce electromagnetic radiation leakage into/out of the housing by reducing the number of holes in the housing. Forming the braided shield includes providing the housing, which defines a longitudinal axis and a passage extending along the longitudinal axis. The housing has an end portion, and the end portion is compressed transverse to the longitudinal axis. The end portion is then forced into the passage. Accordingly, the braid shield reduces or eliminates electromagnetic radiation while providing a strong and consistent crimp with the support.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: March 9, 2010
    Assignee: Delphi Technologies, Inc.
    Inventors: Joseph H. Gladd, William C. Ketterer, Frederick D. Esenwein
  • Patent number: 7642469
    Abstract: An electromagnetic shielding sheet is capable of shielding electromagnetic radiation generated by a display, has a proper transparency and uniformly distributed meshes, prevents the occurrence of white and/or black spot defects and linear defects and glaring, and ensures the satisfactory visibility of images. The electromagnetic shielding sheet has a conductive structure (109) having lines (107) having straight parts of widths (W) in the range of C(1±30%), where C is a predetermined value. The radius (r) of curvature of a side surface (107S) extending between the upper side (107U) and the lower side (107B) of a bank in a section of the lines (107) in a plane perpendicular to the transparent sheet meet a condition expressed by: 1.5t?r?3.0t, where t is the thickness of the conductive structure (109).
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: January 5, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Fumihiro Arakawa, Yasuhiko Ishii, Daisuke Hashimoto, Yukihiro Kyoden, Eiji Ohishi
  • Patent number: 7576289
    Abstract: An electromagnetic shield is provided for a room or for a building, including overlapping, conductively connected, and electrically conductive mesh or grid sections (1-4). The sections are grounded and folded in the overlapping area, where the folds of adjacent mesh or grid sections (1, 2) interlock like hooks in a cross section view.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: August 18, 2009
    Inventor: Wolfgang Kessel
  • Publication number: 20090068857
    Abstract: A contact element for the intermittent contacting of conductor tracks on a circuit board, in particular, for flexible touchpads, for example for flexible input devices in the automobile industry, is made from a metal foam. The metal foam may be at least partly infiltrated by an elastomeric material which can also be the material of construction of the touchpad. The contact element has a very reliable construction which is particularly suitable for high voltage application. A method for production of the contact element, touchpads/input devices with such contact pads and the use of the contact pads is also provided.
    Type: Application
    Filed: May 4, 2006
    Publication date: March 12, 2009
    Applicant: Abatek International AG
    Inventors: Christoph Keist, Klaus Hoffmann
  • Patent number: 7501589
    Abstract: A conductive shield for surrounding a high efficiency light bulb such as a spiral fluorescent bulb is described. A conductive curtain having apertures through which light may pass is connected to the threaded grounded base of the bulb. The apertures in the curtain present high impedance to stray electrical energy (SEE) from the bulb thereby reducing SEE.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: March 10, 2009
    Assignee: And Yet, Inc.
    Inventor: Martin H. Graham
  • Patent number: 7495181
    Abstract: A conductive pattern basically has a substantially polygonal outline shape which is a polygon and can have a high peak value of the electromagnetic wave absorption amount as compared to a case when the conductive pattern has a circular outline shape. Thus, the conductive pattern is basically a polygon and at least one corner portion is shaped in curve. This reduces or even minimizes the shift of the frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave. Accordingly, in at least one embodiment, it is possible to realize an electromagnetic absorber having an excellent electromagnetic wave absorption characteristic exhibiting a high peak value of the absorption amount of the electromagnetic wave and a small shift of frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: February 24, 2009
    Assignee: Nitta Corporation
    Inventors: Masato Matsushita, Takahiko Yoshida, Haruhide Go, Yoshiharu Kiyohara, Makoto Maezawa, Shinichi Sato
  • Patent number: 7495182
    Abstract: An electromagnetic wave shielding sheet 1 comprises a transparent substrate 11, and line parts 107 that define openings 105, provided on the transparent substrate 11. The line parts 107 have a metal mesh layer 21, and a blackening layer 25A formed on the surface of the metal layer 21, on the side of the transparent substrate 11. Matted layers 31 are formed on the side faces of the line parts 107, and an anticorrosive layer 23A is provided between the blackening layer 25A and the transparent substrate 11.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: February 24, 2009
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Patent number: 7491902
    Abstract: An electromagnetic wave shielding sheet 1 comprises a transparent substrate 11, and a first anticorrosive layer 23A, a first blackening layer 25A, a metal layer 21, and a second anticorrosive layer 23B that are successively formed on the transparent substrate 11 through an adhesive layer 13. A second blackening layer 25B is formed so that it fully covers the side faces of the first anticorrosive layer 23A, the first blackening layer 25A, the metal layer 21, and the second anticorrosive layer 23B, as well as the front face of the second anticorrosive layer 23B. At least either of the first anticorrosive layer 23A and the second anticorrosive layer 23B contains one or more metals selected from nickel, chromium, and silicon, and also zinc and/or tin when it is initially formed, and the zinc and/or tin is removed from the first anticorrosive layer 23A and/or the second anticorrosive layer 23B in an intermediate steps.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: February 17, 2009
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Patent number: 7485814
    Abstract: An electromagnetic wave shielding filter 10 includes a meshed layer, wherein at least one of the front and back surfaces of the meshed layer is subjected to a blackening treatment to be a blackened face having micro-irregularities. The shape of the micro-irregularities is adjusted to have a probability density curve with a peak point being convex upward wherein the probability density curve is defined as a curve depicted in a graph in which the change of height from the peak value Rp to the bottom value Rv of the deepest valley is shown as the horizontal axis while the probability density expressing the distribution of height is shown as the vertical axis. Also, in the probability density curve, a horizontal tangent can be drawn at its peak point.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: February 3, 2009
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Tetsuya Ojiri, Fumihiro Arakawa, Yukihiro Kyoden
  • Patent number: 7459641
    Abstract: An optical filtering/electromagnetic screening structure for being joined to at least one transparent substrate, especially made of glass. The structure includes at least two plastic sheets and including, or intended to be joined to the sheets, a conducting electromagnetic screening element. At least one sheet is made of a thermoplastic, the other sheet constitutes a sheet for covering the conducting element or the thermoplastic sheet, and either one or both of the two sheets incorporate at least one mineral pigment or at least one organic dye to produce, in respect of the structure, an orange filter for light of wavelength centered on 590 nm.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: December 2, 2008
    Assignee: Saint-Gobain Glass France
    Inventor: Georges Zagdoun
  • Publication number: 20080277157
    Abstract: An electromagnetic wave shielding sheet 1 comprises a transparent substrate 11, and line parts 107 that define openings 105, provided on the transparent substrate 11. The line parts 107 have a metal mesh layer 21, and a blackening layer 25A formed on the surface of the metal layer 21, on the side of the transparent substrate 11. Matted layers 31 are formed on the side faces of the line parts 107, and an anticorrosive layer 23A is provided between the blackening layer 25A and the transparent substrate 11.
    Type: Application
    Filed: January 26, 2005
    Publication date: November 13, 2008
    Applicant: DAI NIPPON PRINTING CO., LTD
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Publication number: 20080245563
    Abstract: An electromagnetic wave shielding layer 1 comprises a transparent substrate 11, an adhesive layer 13 which is provided as needed, an electromagnetic wave shielding layer 15, and a transparent resin layer 17. The electromagnetic shielding layer 15 includes a mesh portion 103 facing a screen portion 100 of an image displaying device, a transparent resin layer anchoring portion 105 surrounding a periphery of the mesh portion 103 and including openings 105a having an opening ratio lower than that of openings 103a of the mesh portion 103, and a frame portion 107 surrounding an outer periphery of the transparent resin layer anchoring portion 105 and not having openings. The transparent resin layer 17 is provided such that it covers the surfaces of the mesh portion 103 and the transparent resin layer anchoring portion 105 and fills the openings 103a, 105a.
    Type: Application
    Filed: July 25, 2005
    Publication date: October 9, 2008
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Kazuhito Fujii
  • Patent number: 7375292
    Abstract: An electromagnetic wave shielding filter comprises a transparent substrate 11, and a metal mesh layer 21 with line parts 107 that define openings 105 of the mesh, laminated to one surface of the transparent substrate 11 by an adhesive 13. A first blackening layer 25A and an anticorrosive layer 23A are successively formed on the surfaces, on the transparent substrate side, of the line parts 107 of the metal mesh layer 21. A second blackening layer 25B is formed on surfaces, on the side opposite to the transparent substrate 11, of the line parts 107 of the metal mesh layer 21, and also on side faces of the line parts 107.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: May 20, 2008
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Nobuo Naito, Fumihiro Arakawa, Tadahiro Masaki
  • Patent number: 7353597
    Abstract: A method of forming a conductive gasket material by layering at least one conductive web layer having a blended mixture of conductive fibers and low melting point nonconductive fibers onto a foam core, and needlepunching the conductive web layer and the foam core forming a conductive composite gasket material having a plurality of conductive fibers interspersed through the foam core.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: April 8, 2008
    Inventor: Joseph J. Kaplo
  • 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: 7304250
    Abstract: An electromagnetic shielding sheet 1 includes: a transparent base 11, and at least an adhesive layer 13, an antirust layer 25A and a mesh metal layer 21 formed on one of the surfaces of the base. A blackened layer 23A is sandwiched between the mesh metal layer 21 and the antirust layer 25A. At least openings 105 of the mesh metal layer 21 are filled up with a resin such that the mesh metal layer 21 has a substantially flat surface.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: December 4, 2007
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Fumihiro Arakawa, Yasuhiko Ishii, Daisuke Hashimoto, Yukihiro Kyoden, Eiji Ohishi
  • Patent number: 7297451
    Abstract: A novel black matrix, a method for preparing the same, and a flat display device and an electromagnetic interference filter to which the black matrix is applied. The black matrix is prepared by exposing a photoactive compound to form a latent pattern of nuclei for crystal growth and treating the latent pattern of nuclei for crystal growth with a metal salt solution to give a metal particle-deposited pattern; forming an electroless Ni-plated layer on the metal particle-deposited pattern; and forming an electroless Cu-plated layer on the electroless Ni-plated layer. Exhibiting improved black tone, which is achieved only by a selective multilayer plating process, without using expensive vacuum sputtering apparatus or a photolithographic process, the black matrix can be applied to various flat display devices. In addition, due to improved electric conductivity, the black matrix can be used in an electromagnetic interference filter, without employing an additional front surface blackening process.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: November 20, 2007
    Assignee: Samsung Corning Co., Ltd.
    Inventors: Ho Chul Lee, Euk Che Hwang, Jin Young Kim, Chang Ho Noh, Ki Yong Song, Sung Hen Cho
  • Patent number: 7288494
    Abstract: An electro-magnetic wave shield cover having an array of first yarn members (10) formed by bundling (48) ends of polyester fibers around which a tin-plated copper metallic foil (12) is wound. The second yarn member (20) is formed by bundling 96 ends of polyester fibers. Doubled-yarn groups (10A, 10B, 10C, 10D) of the first yarn members running in the first direction (warp) from upper right to lower left and doubled-yarn groups (20A, 20B, 20C, 20D) of the second yarn members (20) running in the first direction (warp), and doubled-yarn groups (10a, 10b, 10c, 10d) of the first yarn members running in the second direction (weft) from upper left to lower right and doubled-yarn groups (20a, 20b, 20c, 20d) of the second yarn members running in the second (weft) direction are arranged so that the interlacing is made in such a manner that if the doubled-yarn group, running in the one direction is twice disposed beneath the doubled-yarn groups running in the other direction, then it is twice disposed above the latter.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: October 30, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Atsuo Iwasaki, Toshikazu Numaguchi, Yoshihiko Takahashi
  • Patent number: 7255980
    Abstract: A black matrix, a method for preparing the black matrix, a flat panel display and an electromagnetic interference filter using the black matrix. The black matrix may comprise a substrate, a titanium oxide layer, a Ni plating layer, and a Ni/Pd alloy layer. The method may comprise the steps of forming a titanium oxide layer, forming a metal particle-deposited pattern on the titanium oxide layer, forming a Ni electroless plating layer on the metal particle-deposited pattern, and forming a Ni/Pd alloy layer on the Ni electroless plating layer. Since the black matrix may have a high blackening density via simple selective multilayer plating without using a high-price vacuum sputtering apparatus and undergoing photolithography, unlike conventional chromium-based black matrices, it may be employed in various flat panel displays. In addition, since the black matrix may exhibit superior electrical conductivity, it may be used in electromagnetic interference filters without additional front-surface blackening.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: August 14, 2007
    Assignee: Samsung Corning Co., Ltd.
    Inventors: Euk Che Hwang, Chang Ho Noh, Jin Young Kim, Ki Yong Song, Sung Hen Cho
  • Patent number: 7183499
    Abstract: An electromagnetic wave shielding sheet includes a transparent substrate 11 and a metal layer 15 provided on one surface of the transparent substrate 11 through an adhesive layer 13. The metal layer 15 includes a mesh part 103 and a frame part 101 surrounding the mesh part 103. The frame part 101 includes at least one transparent part 105 that is a metal-layer-free area. Preferably, the transparent part 105 includes a metallic portion 105a in a geometric pattern. Light transmitted by or reflected from the transparent part 105 is detected, thereby the transparent part 105 can be used as a register mark for detecting the position of the mesh part 103.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: February 27, 2007
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Daisuke Hashimoto, Fumihiro Arakawa, Yasuhiko Ishii, Yukihiro Kyoden, Eiji Oishi
  • Patent number: 7183500
    Abstract: The application describes embodiments of an apparatus including a plurality of first channels, each having an inlet, an outlet, and a first path length between the inlet and the outlet, and a plurality of second channels, each having an inlet, an outlet, and a second path length between the inlet and the outlet. The second path length is different from the first path length, and each second channel is adjacent to at least one first channel. The application also describes embodiments of a process including suppressing electromagnetic radiation using a filter comprising a plurality channels, and simultaneously passively canceling noise at the outlets of the plurality of channels. Other embodiments are also described and claimed.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: February 27, 2007
    Assignee: Intel Corporation
    Inventors: Edoardo Campini, Andy Saffarian, Jerome A. Saint Cyr