Discharging Or Preventing Accumulation Of Electric Charge (e.g., Static Electricity) Patents (Class 361/212)
  • Patent number: 8383219
    Abstract: A multilayer thermoplastic container for storing and transporting liquid contents, especially combustible or explosive contents, is made of at least three superimposed layers and includes at least one layer for discharging an electric charge. The innermost layer of the container in contact with the liquid content is made of virgin material and a second integrated inner layer which is covered by the innermost virgin material layer is electrically conductive as a result of incorporated additives, e.g. conductive carbon black and is covered on the outside by another electrically non-conductive layer. Electric charge carriers that accumulate on the surface of the thin inner layer due to the friction with the content are “suctioned through” large areas of the inner, electrically non-conductive layer by the second, electrically conductive layer and discharged.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: February 26, 2013
    Assignee: Mauser-Werke GmbH
    Inventors: Klaus-Peter Schmidt, Frank Schüller, Reinhard Schubbach
  • Patent number: 8373962
    Abstract: A system and method is provided for increasing interaction between seed particles in a seed cloud and target particles to be neutralized, detected or knocked down to the ground. This is achieved by applying a charge to the seed particles so that the seed cloud formed by release of the seed particles at altitude is highly charged, which in turn produces a strong electric field between the seed cloud and ground. The relatively strong electric field causes the seed particles to move downward (toward the ground) at a velocity sufficient to increase interaction (collisions) between the seed particles and the target particles.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: February 12, 2013
    Assignee: Exelis Inc.
    Inventor: Steve Ray Diehl
  • Publication number: 20130027835
    Abstract: A joint with a first component; a second component; and an electrical assembly which provides an electrical pathway between the first and second components with an electrical resistance between 100 k? and 10 M?. The electrical assembly comprises a bonding lead; and a pair of connection assemblies each connecting the bonding lead to a respective one of the components. Each connection assembly comprises: a fastener with a shaft which passes through a hole in the component and a hole in the bonding lead, the hole in the bonding lead passing between an inner face of the bonding lead which faces towards the component and an outer face of the bonding lead which faces away from the component, and a washer which is carried by the shaft of the fastener and engages the component and the inner face of the bonding lead. Each washer provides the path of least electrical resistance between the bonding lead and a respective one of the components, each said path having an electrical resistance between 50 k? and 5 M?.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Applicant: AIRBUS OPERATIONS LIMITED
    Inventors: Colin John WEST, David Alistair SUTTON
  • Publication number: 20130027834
    Abstract: An integrated circuit includes a plurality of terminals, an unterminated diode string formed from a plurality of P-N junction devices arranged in series and coupled to the plurality of terminals, and a plurality of switches. Each of the plurality of switches includes a first terminal coupled to an anode of one of the plurality of P-N junction devices and a second terminal coupled to a power supply terminal, and is controllable to selectively couple the anode to the power supply terminal in response to an ESD event. The plurality of switches configured to dissipate an ESD current associated with the ESD event and dynamically terminate the unterminated diode string at a node where the ESD current falls below a turn-on threshold of a next P-N junction device in the unterminated diode string.
    Type: Application
    Filed: July 29, 2011
    Publication date: January 31, 2013
    Inventor: Jeremy Charles Smith
  • Patent number: 8351179
    Abstract: A (GS) for an equipment (EQ) including an electrical reference (ME) and including an area provided with at least two photoelectric cells (C) electrically connected and each covered by a protective window that can become electrostatically charged. This solar generator further includes, on the one hand, at at least one chosen place (EC) of the area, intensification means (MI) responsible for locally intensifying the electrostatic charge so as to force the generation of primary electrical arcs at that chosen place, and, on the other hand, discharging means (EL, LM) adapted to couple the intensification means (MI) to the electrical reference (ME) of the equipment (EQ) so as to evacuate to that electrical reference (ME) discharge currents induced by the primary electrical arcs.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: January 8, 2013
    Assignee: Thales
    Inventors: Bernard Boulanger, Claude Berthou
  • Patent number: 8349623
    Abstract: A method for manufacturing a thin film photoelectric conversion module comprising the steps of: (A) forming a plurality of divided strings by dividing a string, in which thin film photoelectric conversion elements provided by sequentially laminating a first electrode layer, a photoelectric conversion layer and a second electrode layer on the surface of an insulating substrate are electrically connected in series, into a plurality of strings by dividing grooves, electrically insulating and separating the first electrode layer and the second electrode layer one from the other and extending in a serial connection direction; and (B) performing reverse biasing by applying a reverse bias voltage to each of thin film photoelectric conversion elements of the divided string.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: January 8, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinsuke Tachibana, Takanori Nakano
  • Patent number: 8345404
    Abstract: A conductive layer mainly made of gold is formed on an upper surface of an insulating substrate. Plural electrodes facing each other via a gap is formed by forming the gap in the conductive layer. An overvoltage protective layer covering the gap and a portion of each of the plurality of electrodes is formed. This method can provide the gap with a narrow width precisely, and thereby, provide an electrostatic (ESD) protector with a low peak voltage, stable characteristics of suppressing electrostatic discharge, and a high resistance to sulfidation.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: January 1, 2013
    Assignee: Panasonic Corporation
    Inventors: Kenji Nozoe, Takeshi Iseki, Takashi Morino, Hideaki Tokunaga
  • Publication number: 20120307411
    Abstract: A static-electricity-blocking mounting unit, including: a mounting sheet metal in which a female screw portion is formed, the female screw portion being configured to threadably engage with a male screw configured to fix a member to be fixed to a housing; and an insulating member made of an insulating material and configured to support the mounting sheet metal, wherein the mounting sheet metal is fixed to the housing via the insulating member, and the member to be fixed is fixed to the housing by the male screw threadably engaging with the female screw portion of the mounting sheet metal.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 6, 2012
    Applicant: CANON FINETECH INC.
    Inventor: Takeji Horie
  • Patent number: 8305727
    Abstract: A joint on an aircraft, the joint comprising: a first component; a second component joined to the first component; and a bonding lead which forms an electrical connection between the components with a resistance between 100 k? and 10 M?. Surprisingly, it has been found that a bonding lead with a relatively high resistance can be used without seriously compromising the static discharge performance of the bonding lead, and that the resulting comparatively low flow of current reduces the risk of sparking in the event of an lightning strike. Bonding leads may be provided as a kit of parts in which at least two of the bonding leads have different lengths and the longer lead is formed from a material having a higher bulk conductivity than the shorter lead. Thus the bonding leads can be made with approximately similar resistances regardless of their lengths.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: November 6, 2012
    Assignee: Airbus Operations Limited
    Inventors: Colin John West, David Alistair Sutton, Robert Bernard Malia, Richard Edward Mills, Alan Donald Pout
  • Patent number: 8289671
    Abstract: A case structure for an electronic device includes a first conductive layer, a conductive housing, and a surface treatment layer. The first conductive layer has a taper protrusion. The conductive housing is disposed at one side of the first conductive layer, and a narrow end of the taper protrusion faces the conductive housing. The surface treatment layer is disposed between the taper protrusion and the second conductive layer.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: October 16, 2012
    Assignee: Compal Electronics, Inc.
    Inventors: Chia-Ming Chi, Kuo-Cheng Chu
  • Publication number: 20120257318
    Abstract: Provided is a static eliminator capable of holding ion balance uniform regardless of a distance from the static eliminator. The static eliminator includes: an electrode driving device that alternately and repeatedly applies, to a discharge electrode, a positive drive voltage and a negative drive voltage as drive voltages for corona discharge; decreases a ratio of the application time of the positive drive voltage while relatively increasing the voltage value of the positive drive voltage in a case of increasing positive ions, and increases the ratio of the application time of the positive drive voltage while relatively decreasing the voltage value of the positive drive voltage in a case of increasing negative ions.
    Type: Application
    Filed: April 3, 2012
    Publication date: October 11, 2012
    Applicant: KEYENCE CORPORATION
    Inventor: Tsukasa Fujita
  • Publication number: 20120243140
    Abstract: A circuit protection device includes a circuit conductor, at least one wire coil having at least one winding sized to receive the circuit conductor therein, and a ground shield configured to shield the winding from an electrostatic field generated by a common mode voltage between the circuit conductor and the winding.
    Type: Application
    Filed: March 22, 2011
    Publication date: September 27, 2012
    Inventor: Nikhil Purushottam Gan
  • Patent number: 8264811
    Abstract: An apparatus for the collection and discharge of static electrical charges without the need for an earth ground or atmosphere. This apparatus has three major parts: a collector stage, a conversion stage, and an emissive stage. The collection stage, an apparatus that can carry a static charge from the environment external to the apparatus, is connected electrically to the conversion stage, comprising one or more layers of a material that can carry an electrical charge, disposed among two or more layers of a material that can carry an electrical charge, which layers are in turn connected electrically to components so as to trap the electrical charges in an electromagnetic field and convert them into electrical energy. Finally, the electrical output of the conversion stage is electrically connected to an emissive stage: comprising a transducing device or circuit capable of utilizing the energy or emitting it.
    Type: Grant
    Filed: March 6, 2010
    Date of Patent: September 11, 2012
    Inventor: Richard Douglas Green
  • Patent number: 8248748
    Abstract: The invention relates to a ducting for a fuel pipeline of an aircraft or spacecraft designed to be mounted in each of the wings of an aircraft, an aircraft wing incorporating this ducting and a method for producing same. This ducting comprises at least one multilayer pipe having two respectively inner and outer layers made of a composite plastic material that is leakproof and chemically resistant to the fuel and that is reinforced by electrically conductive reinforcing means, these layers being separated by an intermediate layer, notably capable of stiffening the pipe when flexed and/or to insulate it electrically. Each of the inner and outer layers has at least one winding with contiguous turns of a continuous element made of a composite thermoplastic incorporating these reinforcing means.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: August 21, 2012
    Assignee: Hutchinson
    Inventors: Jean-Pierre Ciolczyk, Julien Bouleti, Marc Dolez
  • Patent number: 8246367
    Abstract: A connecting structure reduces noise effects on an electronic device when hot docking the electronic device to mitigate against malfunctions. When a first electronic device having a first EMI shield is docked with a second electronic device having a second EMI shield, an ESD contact portion, which is connected to the second EMI shield and has higher in impedance than an EMI connecting portion, comes in contact with the first EMI shield earlier than the EMI connecting portion. Electrostatic charge carried on the first EMI shield moves slowly to the second EMI shield due to the high impedance of the ESD contact portion.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: August 21, 2012
    Assignee: Lenovo (Singapore) Pte Ltd.
    Inventors: Mitsuo Horiuchi, Fumio Tamura, Hiroaki Agata
  • Publication number: 20120200981
    Abstract: The present invention provides an electrostatic chuck, which includes a base (102) and an electrode (401, 402) arranged inside the base, the electrostatic chuck further includes a charge releasing unit, the electrode can be selectively connected to a power supply arranged outside the electrostatic chuck or connected to the charge releasing unit in order to connect to the power supply to obtain electric energy during the process and connect to the charge releasing unit to release remaining charges on the electrode and then to remove remaining charges on the work piece held on the electrostatic chuck during the charge releasing process. A method for removing remaining charges on the electrostatic chuck is also provided, and the method can release the remaining charges on the electrode and the wafer more thoroughly and rapidly to eliminate the appearance of wafer adherence and wafer crack, so as to reduce possibility of the interruption of the process and improve the production efficiency and yield.
    Type: Application
    Filed: August 19, 2010
    Publication date: August 9, 2012
    Applicant: BEIJING NMC CO., LTD.
    Inventor: Baohui Zhang
  • Publication number: 20120200980
    Abstract: An electrostatic clamp which more effectively removes built up charge from a substrate prior to removal is disclosed. Currently, the lift pins and the ground pins are the only mechanism used to remove charge from the substrate after implantation. The present discloses describes an electrostatic chuck in which the top dielectric surface has an embedded conductive region, such as a ring shaped conductive region in the sealing ring. Thus, regardless of the orientation of the substrate during release, at least a portion of the substrate will contain the conductive region on the dielectric layer of the workpiece support. This conductive region may be connected to ground through the use of conductive vias in the dielectric layer. In some embodiments, these conductive vias are the fluid conduits used to supply gas to the back side of the substrate.
    Type: Application
    Filed: February 7, 2011
    Publication date: August 9, 2012
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Julian Blake, Dale K. Stone, Lyudmila Stone, David Suuronen, Shigeo Oshiro
  • Patent number: 8238069
    Abstract: An ESD protection device has a structure that allows ESD characteristics to be easily adjusted and stabilized. The ESD protection device includes a ceramic multilayer substrate, at least a pair of discharge electrodes located in the ceramic multilayer substrate and facing each other with a space disposed therebetween, and external electrodes located on a surface of the ceramic multilayer substrate and connected to the discharge electrodes. The ESD protection device includes a supporting electrode disposed in a region that connects the pair of discharge electrodes. The supporting electrode is made of a conductive material coated with an inorganic material having no conductivity.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: August 7, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Jun Adachi, Jun Urakawa, Takahiro Sumi, Takahiro Kitazume
  • Patent number: 8199453
    Abstract: A shaft current control brush ring assembly includes a cup and a brush ring assembly secured within the cup. The cup is secured to a motor faceplate, within a recess formed in the faceplate by interference fit, or by means of a clamp attached to the faceplate. A slinger can be associated with the brush ring assembly.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: June 12, 2012
    Assignee: Illinois Tool Works Inc.
    Inventors: Hieyoung W. Oh, Adam H. Willwerth
  • Patent number: 8195063
    Abstract: An image forming apparatus including an image forming apparatus body, a cassette attaching section, a media cassette, a release portion, a first ground conducting route and a second ground conducting route is provided. The cassette attaching section includes a media supplying roller. The media cassette is removably installed in the cassette attaching section. The media cassette includes a loading plate, a pushing up member and a plate holding portion. The release portion engages the plate holding portion. The first ground conducting route conducts static electricity charged on the media and includes a conducting portion. The second ground conducting route conducts static electricity charged on the media when the media is conveyed by the media supplying roller.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: June 5, 2012
    Assignee: Oki Data Corporation
    Inventor: Takashi Kobayashi
  • Patent number: 8194383
    Abstract: An arrangement for preventing vermin from advancing in a pipe (20), designed for fitting in a delimited part of the pipe, comprising a contact pole (13, 22) of electrically conductive material and an opposite pole (11, 21). The contact pole, which is partially movable in the longitudinal direction of the pipe, is arranged on the inner side of the pipe, and the opposite pole is arranged separate from said contact pole in order to earth the inner side of said pipe and is arranged in or on the inner side of said pipe. The arrangement, in an active state and when the contact pole is energized, which causes a difference in electrical potential between the opposite pole and the contact pole, administers an electric shock to a vermin which tries to pass the contact pole. The invention also relates to a pipe section comprising the arrangement.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: June 5, 2012
    Assignee: Ratcon AB
    Inventors: Niclas Nilsson, Robert Lidén, Per Johansson
  • Patent number: 8154842
    Abstract: A static-conducting sheet of conductive material is provided. The static-conducting sheet includes a longitudinal substrate, two fixed portions and at least one elastic arm. The fixed portion includes a perpendicular portion and a lateral portion. The perpendicular portion extends from two opposite ends of the longitudinal substrate. The perpendicular portion extends perpendicularly upward from the planar surface. The lateral portion is parallel to the planar surface. The elastic arm includes a fixed end and a distal end. The fixed end is fixed on the longitudinal substrate. The arm extends perpendicular from the planar surface. The arm includes a fixed end and a distal end. The fixed end is connected to the longitudinal substrate, and the distal end is hooked.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: April 10, 2012
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Chia-Te Yu, Tai-Shan Zhu
  • Patent number: 8138937
    Abstract: The present invention provides a device to monitor whether a work station operator has properly worn a grounding mechanism, and a novel cascading means to chain multiple devices into a chain for sharing electricity and ground. The present invention could achieve the following functions: (1) capable of monitoring both single-wire and two-wire grounding mechanisms; (2) providing backup grounding through the chain so that the static electricity discharging capability is maintained as long as a single device in the chain remains connected to the ground; (3) extending the ground through the chain so that grounding is not required to be previously prepared at every work station; (4) sustaining all devices on the chain by a single external power supply; and (5) providing networking connectivity through the chain's cascading cables so that the network cabling cost and effort is significantly reduced.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: March 20, 2012
    Inventor: Hsin-Ming Yang
  • Patent number: 8133765
    Abstract: The invention relates to a high-frequency integrated circuit requiring ESD protection for a circuit node. One or more metallic layer is deposited within the integrated circuit and patterned to form a transmission line. The metallic layers are generally already present in the integrated circuit for signal routing. The transmission line is coupled between the circuit node and a terminal of an ESD protection device, with a transmission line return conductor coupled to a high-frequency ground. The transmission line is formed with an electrical length that transforms the impedance of the ESD protection device substantially into an open circuit at the circuit node at an operational frequency of the integrated circuit. The other terminal of the ESD protection device is coupled to the high-frequency ground.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: March 13, 2012
    Assignee: Infineon Technologies AG
    Inventors: Uwe Hodel, Wolfgang Soldner
  • Patent number: 8134821
    Abstract: There is provided a static eliminator capable of weakening an electric field between a discharge electrode and a ground electrode, to generate a strong electric field between the discharge electrode and a workpiece, in which a first-stage circumferential chamber, a second-stage circumferential chamber and a first gas pool are arrayed in series along the longitudinal direction of a discharge electrode, the first gas pool is disposed in the mode of diametrically overlapping a gas outflow channel for shielding located on the inner circumferential side of the first gas pool, a gas is supplied to the first gas pool through the chambers disposed at multi-stages by means of the circumferentially spaced multi-stage orifices (the first and second chases), a ground electrode plate member in plate shape is buried in an insulating resin member on the bottom surface side of the half base in a position as high as where the first gas pool is located, and the ground electrode plate member includes a circular ring section con
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: March 13, 2012
    Assignee: Keyence Corporation
    Inventors: Koji Fukai, Teppei Imataka
  • Publication number: 20120057267
    Abstract: A pipe connector is disclosed, comprising two connector elements, arranged for interconnection of two pipes, wherein one or both of the connector elements is formed from electrically resistive material so as to provide electrical resistance between the connected pipes.
    Type: Application
    Filed: August 31, 2011
    Publication date: March 8, 2012
    Applicant: AIRBUS OPERATIONS LIMITED
    Inventors: David PETIT, Anthony BRYANT
  • Patent number: 8120888
    Abstract: A device for grounding electrical components arranged in a chain has a grounding point at ground potential and an actuation device connected to the grounding point for connecting the electrical components to the grounding point. In order to provide such a device, with which a simple, safe, and durable grounding is obtained, the actuation device is constructed as a moving part extending in a longitudinal direction and movable in a longitudinal direction. The moving part has an electrically conducting grounding section connected to the grounding point and an electrically nonconducting insulating section arranged on the end of the moving part facing away from the grounding point.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: February 21, 2012
    Assignee: Siemens Aktiengeselschaft
    Inventors: Jörg Dorn, Jörg Hafermaas, Johann Holweg, Thomas Kübel, Herbert Müller
  • Publication number: 20120006583
    Abstract: The present invention provides an electrostatic discharge protector capable of simply taking ESD measures with a free shape against electronic circuit boards having various designs, having excellent regulation accuracy for an operating voltage and capable of downsizing and cost decreasing, and also provides a discharge gap filling composition capable of using in the production of the electrostatic discharge protector. The discharge gap filling composition comprises metal particles (A) obtainable by metal particles with a hydrolyzed product of a metal alkoxide represented by the following formula (1) and a binder component (C), and the electrostatic discharge protector comprises the composition; R—O—[M(OR)2—O—]n—R??(1) wherein M is a metal atom, O is an oxygen atom, R is an alkyl group, all or a part of R's may be the same as or different each other, and n is an integer of 1 to 40.
    Type: Application
    Filed: March 17, 2010
    Publication date: January 12, 2012
    Applicant: SHOWA DENKO K.K.
    Inventors: Yoshimitsu Ishihara, Mina Onishi, Yukihiko Azuma
  • Publication number: 20110317326
    Abstract: A discharge gap filling composition for an electrostatic discharge protector. The composition contains oxide film coated metal particles (A), a layered substance (B) and a binder component (C). Also disclosed is an electrostatic discharge protector including a discharge gap and a discharge gap filling material containing the discharge gap filling composition that is filled in the discharge gap.
    Type: Application
    Filed: March 1, 2010
    Publication date: December 29, 2011
    Applicant: SHOWA DENLO K.K.
    Inventors: Mina Onishi, Yoshimitsu Ishihara, Hirofumi Inoue, Yukihiko Azuma
  • Publication number: 20110308472
    Abstract: A system and method for monitoring and mitigating leakage currents is disclosed. The data acquisition system records data from multiple monitoring locations over extended periods of time to identify stray voltage and/or leakage currents present at the monitoring location. The data is processed to identify trends in the stray voltage and/or leakage currents and to suggest methods for mitigating the same.
    Type: Application
    Filed: June 16, 2011
    Publication date: December 22, 2011
    Inventor: Jesse Straubhaar
  • Publication number: 20110310523
    Abstract: An electrical apparatus, which is preferrably operated at voltages above 1 kV, comprises an electrostatic shield to reduce the electrical field strength outside of the apparatus. Advantageoulsy, the electrostatic shield is at least in part formed by a dielectric enclosure containing water.
    Type: Application
    Filed: February 20, 2009
    Publication date: December 22, 2011
    Applicant: ABB TECHNOLOGY AG
    Inventors: Per-Olof Hedblad, Dong Wu
  • Publication number: 20110299213
    Abstract: A varistor ceramic includes Zn as the main component and Pr in a proportion of 0.1 to 3 atom %.
    Type: Application
    Filed: February 1, 2010
    Publication date: December 8, 2011
    Applicant: EPCOS AG
    Inventors: Monika Piber, Hermann Grünbichler
  • Patent number: 8072731
    Abstract: There is provided a static eliminator capable of improving a sheath effect exerted by shielding a leading end of a discharge electrode by a clean gas so as to prevent the leading end of the discharge electrode from being contaminated, in which a first-stage circumferential chamber, a second-stage circumferential chamber and a first gas pool are arrayed in series along the longitudinal direction of a discharge electrode, the first gas pool is disposed in the mode of diametrically overlapping a gas outflow channel for shielding located on the inner circumferential side of the first gas pool, and a clean gas is supplied to the first gas pool through the chambers disposed at multi-stages by means of the circumferentially spaced multi-stage orifices (the first and second chases).
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: December 6, 2011
    Assignee: Keyence Corporation
    Inventors: Tomonori Shimada, Kazunori Kobayashi
  • Patent number: 8072730
    Abstract: The present invention relates to a chip-type protection device having an enclosed micro-gap between electrodes. The invention includes a substrate on which a pair of discharge electrodes extend towards each other by a micro-gap. A wall is disposed in a manner spaced apart from the micro-gaps by a predetermined distance, on which a cover portion is mounted in a straddling manner across the micro-gaps. The wall and the cover portion are integrated under a predetermined gaseous environment to form a hermectic chamber on which an outer protective layer is coated. End electrodes are subsequently formed on the substrate in a manner connected to conductive portions of the discharge electrodes. The invention provides a protection device against over-voltage.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: December 6, 2011
    Assignee: TA-I Technology Co., Ltd.
    Inventors: Ho-Chieh Yu, Chun-You Lin, Hung-Yi Chuang
  • Patent number: 8064184
    Abstract: An ion nozzle (36) generates an air jet (38) comprising charged particles which is incident on the open side edge (52) of the printed products (10). As a result of this, the printed products (10) are bulged and, at the same time, discharge electrostatic charge from the open side edge (52).
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: November 22, 2011
    Assignee: Ferag AG
    Inventor: Konrad Auf der Maur
  • Patent number: 8049363
    Abstract: A motor drive circuit comprises positive and negative input terminals for connection of the motor circuit to a DC supply, a DC link filter connected between the input terminals: an electric motor having at least two phases, a plurality of motor drive sub-circuits, each connected to a respective phase of the electric motor and which each control the flow of current into or out of the respective phase of the motor that has been drawn from the supply through the DC link filter, and a switching means provided in the electrical path between the DC link filter and the electric motor drive sub-circuits, the switching means being movable between a closed position in which it connects the DC link filter to the motor drive sub-circuits, and an open position which isolates the DC link filter from the motor drive sub-circuits.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: November 1, 2011
    Assignee: TRW Limited
    Inventors: Andrew McLean, John Anthony Bolton
  • Publication number: 20110236098
    Abstract: A grounding structure includes a rotation shaft and a grounding member. The rotation shaft has a non-circular cross section, and rotates. The grounding member is attached to the rotation shaft to electrically communicate with the rotation shaft, and rotates together with the rotation shaft. The grounding member includes a first grounding portion, a grounding retainer and a second grounding portion. An outer shape of the first grounding portion is a circular shape. The grounding retainer is provided on a side of the first grounding portion in a shaft direction of the rotation shaft, and has an outside diameter being larger than an outside diameter of the first grounding portion. The second grounding portion is elastically held in contact with the first grounding portion.
    Type: Application
    Filed: September 16, 2010
    Publication date: September 29, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventor: Takuya OKAMURA
  • Publication number: 20110235230
    Abstract: Disclosed is a touch screen, which includes a first transparent substrate having a first transparent electrode formed on one surface thereof, a second transparent substrate formed to face the first transparent substrate and having a second transparent electrode formed on one surface thereof, a first adhesive layer formed at an outer periphery between one surface of the first transparent substrate and one surface of the second transparent substrate, and an antistatic layer formed on the other surface of the first transparent substrate so that a touch input is applied thereto and including a conductive material, and in which the antistatic layer is formed on the upper surface of the first transparent substrate thus preventing the generation of static electricity and preventing damage to the first transparent substrate.
    Type: Application
    Filed: May 25, 2010
    Publication date: September 29, 2011
    Inventors: Jong Young LEE, Yong Soo OH
  • Patent number: 8014121
    Abstract: The present invention prevents occurrence of electrical discharge on an electrically conductive structure in an environment in which high-energy electrons impinge onto the structure or on an electronic element mounted to a surface of the structure, which electrical discharge would otherwise occur when the potential of the structure or the electronic element increases in the negative direction due to a negative charge flowing thereinto. An insulating tape bonded to the surface of the electrically conductive structure is partially cut-removed; an electrically conductive adhesive is applied to an exposed portion of the surface of the electrically conductive structure; and an insulating film is bonded to the electrically conductive adhesive, such that the electrically conductive adhesive is exposed to the outside.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: September 6, 2011
    Assignees: Kyushu Institute of Technology, Japan Aerospace Exploration Agency
    Inventors: Mengu Cho, Yuya Sanmaru, Satoshi Hosoda, Minoru Iwata, Tatsuhito Fujita, Yasumasa Hisada
  • Publication number: 20110211291
    Abstract: The present invention describes an electrostatic discharge protection circuit that protects an internal circuit of a semiconductor device from electrostatic discharge. The electrostatic discharge protection circuit includes a first electrostatic protection unit that transfers static electricity as a driving signal and also discharges the static electricity to a first discharge line when the static electricity is generated in a pad. It also includes a second electrostatic protection unit that discharges the static electricity generated in the pad to a second discharge line in response to the driving signal transferred from the first electrostatic protection unit. Since the first electrostatic protection unit performs an electrostatic discharge operation and at the same time aids the driving of the second electrostatic protection unit, electrostatic discharge performance can be enhanced while a layout area of the electrostatic discharge protection circuit can be reduced.
    Type: Application
    Filed: May 6, 2011
    Publication date: September 1, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Hee Jeong SON
  • Publication number: 20110199713
    Abstract: A high-frequency device includes a wireless IC chip and a board which is coupled to the wireless IC chip and electrically connected to radiator plates, and an inductor and/or a capacitance are provided as a static electricity countermeasure element in the board. The inductor is connected in parallel between the wireless IC chip and the radiator plates, and its impedance at the frequency of static electricity is less than an impedance of the wireless IC chip.
    Type: Application
    Filed: April 27, 2011
    Publication date: August 18, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Noboru KATO, Nobuo IKEMOTO, Yuya DOKAI, Koji SHIROKI
  • Publication number: 20110194225
    Abstract: The present invention provides an electrostatic discharge protector capable of protecting electronic circuit boards having various designs from electrostatic discharge freely, simply and easily. The electrostatic discharge protector of the present invention comprises at least three conductive members containing one pair of electrodes and the conductive members other than the electrodes, the conductive members are each disposed in such a way that the gap between one conductive member and the other conductive member has a width of 0.1 to 10 ?m, an insulating member is disposed and embedded in at least one of gaps having a width of 0.1 to 10 ?m which are adjacent to each conductive member and one electrode is connected to the other electrode paired with the one electrode through the insulating member and the conductive members other than electrodes.
    Type: Application
    Filed: October 6, 2009
    Publication date: August 11, 2011
    Applicant: Showa Denko K.K.
    Inventors: Mina Onishi, Yoshimitsu Ishihara, Hirofumi Inoue, Yukihiko Azuma
  • Patent number: 7990731
    Abstract: An electronic device includes a housing defining a through hole, a circuit board fixed in the housing, including a switch and a grounding portion connecting with the ground, a fastening member received in the through hole fixed on the housing and contacting the grounding portion, passing static electricity therethrough and defining a mounting hole, and an actuating member received in the mounting hole and contacting the fastening member, and pressing the switch when actuated; wherein the fastening member and the actuating member are conductive.
    Type: Grant
    Filed: December 27, 2008
    Date of Patent: August 2, 2011
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Shi-Kun Guo, Ke-Hui Peng, Guo-Ping Yao
  • Publication number: 20110164341
    Abstract: There are provided a substrate sheet, a plurality of design portions arranged independently from each other along a longitudinal direction of the substrate sheet and each including at least a conductive material portion, and a band-shaped static eliminating band portion extending continuously along the longitudinal direction of the substrate sheet and electrically connecting the conductive material portions in the plurality of design portions to each other.
    Type: Application
    Filed: July 30, 2009
    Publication date: July 7, 2011
    Inventors: Hiroyuki Nagai, Masaki Kashiwagi, Shigeru Hinoshita, Masato Oonishi, Takeshi Sanada, Kazuo Arai, Akihiro Maeda, Hiromitsu Muko
  • Patent number: 7974066
    Abstract: A wireless communication device includes a PCB, a grounded electrostatic protection element and an antenna. The PCB includes a ground and an antenna clearance portion. The ground portion includes a ground layer. The antenna clearance portion overlaps the antenna and includes a plurality of second key contacts, a plurality of ground contacts and a plurality of microstrips. The second key contacts are placed on a top surface of the PCB. The ground contacts and the microstrips are placed on a bottom surface of the PCB and corresponding to the second key contacts. The plurality of microstrips connect the plurality of ground contacts to the ground layer. The electrostatic protection element connects the second key contacts to protect them from electrostatic interference.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: July 5, 2011
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Shih-Chian Yang, Ting-Kong Hsieh
  • Patent number: 7973283
    Abstract: A method for regulating sample surface charge has been proposed in this invention. The processes of applying a charged particle beam to a first area and applying a flood energized beam gun with gaseous molecules to a second area are executed in the method when the sample is in both continuous and Leap & Scan movements. The second area is located at a predetermined distance from the first area behind or ahead of the first area being scanned with respect to the movement of the sample. Thus, the surface of the sample may be regulated.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: July 5, 2011
    Assignee: Hermes Microvision, Inc.
    Inventors: Joe Wang, Jack Jau
  • Patent number: 7973365
    Abstract: The invention relates to a high-frequency integrated circuit requiring ESD protection for a circuit node. One or more metallic layer is deposited within the integrated circuit and patterned to form a transmission line. The metallic layers are generally already present in the integrated circuit for signal routing. The transmission line is coupled between the circuit node and a terminal of an ESD protection device, with a transmission line return conductor coupled to a high-frequency ground. The transmission line is formed with an electrical length that transforms the impedance of the ESD protection device substantially into an open circuit at the circuit node at an operational frequency of the integrated circuit. The other terminal of the ESD protection device is coupled to the high-frequency ground.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: July 5, 2011
    Assignee: Infineon Technologies AG
    Inventors: Uwe Hodel, Wolfgang Soldner
  • Publication number: 20110155658
    Abstract: A filtration media that incorporates a static dissipative media layer for dissipating the static charge that builds up as a fluid, such a fuel, passes through the filtration media. The filtration media includes a filter media suitable for filtering fluid, and a static dissipative media layer. The static dissipative media layer has a surface resistivity level that is sufficient to classify the media layer as static dissipative rather than conductive.
    Type: Application
    Filed: March 9, 2011
    Publication date: June 30, 2011
    Applicant: CUMMINS FILTRATION IP, INC.
    Inventors: Julie GRABER, Gary L. RICKLE, Michael J. MONNIN
  • Publication number: 20110149459
    Abstract: An assembly, system and method are provided for discharging a rotating shaft encompassed by a stationary housing. The system includes an annular charge-dissipating component and a biasing element oriented to apply an axial force to the charge-dissipating component, holding it in contact with the shaft and the housing while the shaft is rotating. The biasing element may be a coil spring or a wave spring. A shaft grounding upgrade kit includes a conductive ring member and a cylindrical spring having a diameter that is the same as that of the conductive ring member. The spring constant of the cylindrical spring is such that the spring holds the conductive ring member within the housing in contact with the shaft and the housing. The conductive ring member may be constructed of gray iron and the cylindrical spring is one of a wave spring and a coil spring.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 23, 2011
    Applicant: Caterpillar Inc.
    Inventor: Jonathan M. Baumann
  • Patent number: 7965487
    Abstract: A neutralization apparatus comprising an ion generation element employing a novel, high efficiency discharge system capable of generating high concentration ions with a low ozone concentration. In the neutralization apparatus, the ion generation element is a minute electrode ion generation element consisting of a discharge electrode and an induction electrode having minute protrusions arranged in one direction on a plane, and a thin dielectric film sandwiched between them.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: June 21, 2011
    Assignees: FISA Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Takafumi Seto, Makoto Hirasawa, Masaaki Tsuji, Akira Okuyama, Susumu Saito