Discharge Devices Having An Electrode Of Particular Material Patents (Class 313/311)
  • Patent number: 10665805
    Abstract: A light emitting diode includes a first electrode and a second electrode facing the first electrode. The light emitting diode further includes an emitting material layer (EML) disposed between the first electrode and the second electrode, and an electron transport layer (ETL) adjacent the EML. The ETL includes a plurality of first inorganic particles having a first average particle size, and a plurality of second inorganic particles having a second average particle size greater than the first average particle size. The plurality of first inorganic particles may also have a first energy bandgap, and a plurality of second inorganic particles may also have a second energy bandgap smaller than the first energy bandgap.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: May 26, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Seung-Jae Lee, Jong-Kwan Bin, Na-Yeon Lee
  • Patent number: 10641699
    Abstract: A method for making carrier for use in single molecule detection is related. The method includes following steps: firstly, placing a middle layer on a substrate; secondly, providing a carbon nanotube composite structure, wherein the carbon nanotube composite structure includes a carbon nanotube structure and a protective layer coated on the carbon nanotube structure, the carbon nanotube structure includes a plurality of carbon nanotubes intersected with each other and defines a plurality of openings; thirdly, placing the carbon nanotube composite structure on a surface of the middle layer, wherein parts of the surface are exposed through the plurality of openings; fourthly, forming the patterned bulge by dry etching the middle layer using the carbon nanotube composite structure as a mask, wherein the patterned bulge includes a plurality of strip-shaped bulges intersected with each other; depositing the metal layer on the patterned bulge.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: May 5, 2020
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ying-Cheng Wang, Yuan-Hao Jin, Qun-Qing Li, Shou-Shan Fan
  • Patent number: 10598575
    Abstract: The invention provides enrichment platform devices for size-based capture of particles in solution. The enrichment platform device is useful for label-free capture of any particle. The invention relates to enrichment platform devices using nanowires and vertically aligned carbon nanotubes. The invention provides methods for making the enrichment platform devices. The invention provides methods for using the enrichment platform devices for filtering particles, capturing particles, concentrating particles, and releasing viable particles.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: March 24, 2020
    Assignee: The Penn State Research Foundation
    Inventors: Siyang Zheng, Mauricio Terrones, Yin-Ting Yeh, Yi Tang, Huaguang Lu, Nestor Perea Lopez, Yiqiu Xia
  • Patent number: 10566167
    Abstract: The present disclosure provides a method of manufacturing a carbon nanotube electron emitter, including: forming a carbon nanotube film; performing densification by dipping the carbon nanotube film in a solvent; cutting an area of the carbon nanotube film into a pointed shape or a line shape; and fixing the cutting area of the carbon nanotube film arranged between at least two metal members to face upwards with lateral pressure.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 18, 2020
    Assignee: Korea University Research and Business Foundation
    Inventors: Cheol Jin Lee, Sang Heon Lee, Jun-Soo Han
  • Patent number: 10406636
    Abstract: A thermal interface material and method of making the same includes growing a carbon nanotube array on a first substrate and brazing the distal ends of the carbon nanotube array to a second substrate using a braze material. In at least one embodiment, the braze material includes active elements. The method further includes performing the brazing process in an inert or vacuum atmosphere.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: September 10, 2019
    Assignee: Purdue Research Foundation
    Inventors: Timothy S Fisher, Menglong Hao, Kimberly Saviers, Rajib Paul
  • Patent number: 10049847
    Abstract: The present disclosure relates to a manufacturing method for an electron emitting device using a graphite adhesive material. A method of preparing paste for forming a cathode of an electron emitting device includes: mixing and dispersing a nanomaterial for electron emission and a graphite filler in a solvent; drying a mixed solution in which the nanomaterial and the graphite filler are mixed; and preparing paste by mixing a graphite binder with the dried mixture.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: August 14, 2018
    Assignee: Korea University Research and Business Foundation
    Inventors: Cheol Jin Lee, Dong Hoon Shin, Ki Nam Yun, Yu Ning Sun
  • Patent number: 10002738
    Abstract: In an example, a method to form a low work function insert includes preparing a mixture that includes a first powder that contains barium, a second powder that contains calcium, a third powder that contains at least one of aluminum, samarium, or magnesium, and a fourth powder that contains a refractory metal. The method may also include heating the mixture, contained in a crucible, in a furnace. Oxygen concentration in the furnace may be maintained at a low partial pressure during heating of the mixture in the furnace. The low work function of the insert allows electrons to be readily extracted from its surface.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: June 19, 2018
    Assignee: Colorado State University Research Foundation
    Inventors: Casey Farnell, Cody Farnell, John Williams, Desiree Williams, Bao Gia Nguyen, Kathryn Elizabeth Greiner, Ryan Kenneth Ham
  • Patent number: 9862170
    Abstract: A method for transferring a carbon nanotube array is disclosed. The carbon nanotube array has an ability to have a carbon nanotube structure drawn therefrom. The carbon nanotube array is transferred from a growing substrate to a substitute substrate, meanwhile the carbon nanotube array is still having the ability to have a carbon nanotube structure drawn from the substitute substrate. The substitute substrate is placed on the top surface of the carbon nanotube array. An adhesive layer is sandwiched between the substitute substrate and the carbon nanotube array. The substitute substrate is separated from the growing substrate, thereby separating the bottom surface of the carbon nanotube array from the growing substrate. A method for making a carbon nanotube structure is also disclosed.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: January 9, 2018
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yang Wei, Shou-Shan Fan
  • Patent number: 9831058
    Abstract: The disclosed subject matter includes devices and methods relating to vacuums and vacuum assemblies. In some aspects, methods and devices relate to a vacuum assembly including a body defining an evacuated vacuum chamber, a conduit in the body extending between the vacuum chamber and an exterior of the body, a plug at least partially occluding the conduit, and a seal between the plug and the body that seals the vacuum chamber from the exterior of the body.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: November 28, 2017
    Assignee: VAREX IMAGING CORPORATION
    Inventors: David Craig Smith, Christopher Price, Derek Bullock, James E. Burke
  • Patent number: 9804146
    Abstract: An assembly for nucleic acid sequencing by tunnel current analysis has at least two electrically conductive particles having a diameter from 1 nm to 100 nm and at least two electrically insulating particles having a diameter from 1 nm to 100 nm. The particles are in particular spherically shaped. The assembly also has at least two first electrodes for contacting the electrically conductive particles and a substrate on which the first electrodes and the particles are arranged. The four particles are arranged substantially in a planar square. The conductive particles lie diagonally opposite each other, and the insulating particles lie diagonally opposite each other. The gap between the four particles is used as a solid-state nanopore for nucleic acid sequencing.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: October 31, 2017
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Walter Gumbrecht, Oliver Hayden
  • Patent number: 9702537
    Abstract: A fluid cooled lamp includes: a heat conductive pipe has multiple heat conductive surfaces and a hollow channel; multiple illumination modules arranged at each heat conductive surface; a junction assembly for inlet and outlet of fluid including an inlet joint and an outlet joint, the inlet joint and the outlet joint are respectively communicated with both ends of the hollow channel; a flow guiding inner tube communicated with inlet joint and located in the hollow channel, multiple spray holes are disposed in the flow guiding inner tube, the fluid is sprayed from each spray hole and impacts an inner wall of the heat conductive pipe to remove heat.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: July 11, 2017
    Assignee: HIGH POWER LIGHTING CORP.
    Inventors: Chih-Hung Wei, Ming-Chang Wu, Jian-Yang Wu, Chih-Yang Hsu, Wun-Ru Liao, Yu-Ting Liu
  • Patent number: 9671356
    Abstract: A technique of measuring energy of electrons excited by exposing a semiconductor material to solar ray is proposed. A surface layer having a negative electron affinity is formed on the surface of a semiconductor material. The semiconductor material is placed in a vacuum environment and exposed to solar ray. Photoelectrons emitted from the surface layer having the negative electron affinity are guided to an energy analyzer, and the energy of electrons excited by the solar ray is measured. Since the surface layer having the negative electron affinity is used, the photoelectrons are obtained from the electrons excited by the solar ray, and thereby energy measurement becomes possible.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: June 6, 2017
    Assignee: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Toru Ujihara, Fumiaki Ichihashi, Daiki Shimura, Makoto Kuwahara, Shunta Harada
  • Patent number: 9627618
    Abstract: A substrate is for use in manufacturing a display device. The substrate includes a first area that corresponds to pixel positions. The substrate further includes a second area adjacent to the first area. The substrate further includes a first mark disposed in the second area, wherein a first virtual line corresponds to the first mark. The substrate further includes a second mark disposed in the second area and spaced from the first mark, wherein a second virtual line corresponds to the second mark and intersects the first virtual line at a virtual reference point. The substrate further includes an indicator disposed in the second area, spaced from the first mark and the second mark, and corresponding to an opening of a mask, wherein a positional relation between the virtual reference point and a point of the indicator represents a positional relation between the substrate and the mask.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: April 18, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Cheol-Gyu Jeong
  • Patent number: 9603233
    Abstract: A pulsed neutron generator includes neutron tube and a high voltage power supply. High voltage power supply includes a bulkhead and plurality of electronic components electrically connected between the bulkhead and the target of the neutron tube. A heat pipe is provided in thermal contact with the target and has a housing portion with an exterior surface supporting the plurality of electronic components of the high voltage power supply. Heat pipe includes wick and heat transfer fluid disposed within the housing portion. The wick for recirculates the heat transfer fluid within the housing portion in order to transfer heat away from the target preferably to the bulkhead for dissipation the system housing. Both the wick and heat transfer fluid are preferably realized from materials that have low electrical conductivity. The heat pipe can also be part of other-type particle accelerators, such as x-ray sources and gamma-ray sources.
    Type: Grant
    Filed: November 9, 2011
    Date of Patent: March 21, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Luke Perkins
  • Patent number: 9601705
    Abstract: A material for organic electroluminescence element, including: a phosphorescent compound; and a discotic liquid-crystalline host compound, wherein the phosphorescent compound has an aspect ratio of molecule core diameter to molecule core thickness (molecule core diameter/molecule core thickness) of at least 3, and wherein a size ratio of the molecular radius of the phosphorescent compound to the molecular radius of the discotic liquid-crystalline host compound (molecular radius of the phosphorescent compound/molecular radius of the discotic liquid-crystalline host compound) is 0.8 to 1.2.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: March 21, 2017
    Assignee: UDC Ireland Limited
    Inventor: Koji Takaku
  • Patent number: 9553168
    Abstract: The present technology includes a semiconductor memory device, including a channel layer and interlayer insulation layers surrounding the channel layer. The interlayer insulation layers are stacked with a trench interposed therebetween. A seed pattern is formed on a surface of the trench and a metal layer is formed on the seed pattern in the trench.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: January 24, 2017
    Assignee: SK Hynix Inc.
    Inventor: Sang Hyon Kwak
  • Patent number: 9507064
    Abstract: A dielectric gradient metasurface optical device provides optical wavefront shaping using an ultrathin (less than 100 nm thick) layer of nanoscale geometric Pancharatnam-Berry phase optical elements deposited on a substrate layer. The optical elements are nanobeams composed of high refractive index dielectric material. The nanobeams have uniform size and shape and are arranged with less than 200 nm separations and spatially varying orientations in the plane of the device such that the optical device has a spatially varying optical phase response capable of optical wavefront shaping. The high refractive index dielectric material may be materials compatible with semiconductor electronic fabrication, including silicon, polysilicon, germanium, gallium arsenide, titanium dioxide, or iron oxide.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: November 29, 2016
    Assignees: The Board of Trustees of the Leland Stanford Junior University, TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LIMITED
    Inventors: Mark L. Brongersma, Dianmin Lin, Pengyu Fan, Erez Hasman
  • Patent number: 9504151
    Abstract: Provided is a conductive film having a high conductivity in which electric resistance is less likely to increase, and a conductive composition for forming the same. The conductive composition includes an elastomer component, a fibrous carbon material having a fiber diameter of less than 30 nm, and a flake-like carbon material having a graphite structure, having an intensity ratio (G/D ratio) of a peak (G band) appearing in the vicinity of 1580 cm?1 to a peak (D band) appearing in the vicinity of 1330 cm?1 of Raman spectrum of not less than 1.8, and having a maximum length of not less than 150 nm and a thickness of not more than 100 nm. The conductive film is formed from the conductive composition.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: November 22, 2016
    Assignee: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Jun Kobayashi, Yusuke Yamashita, Yutaro Taguchi, Hitoshi Yoshikawa
  • Patent number: 9312089
    Abstract: The disclosure relates to a method for making field emission cathode. A microchannel plate is provided. The microchannel plate includes a first surface and a second surface opposite to the first surface. The microchannel plate defines a number of holes extending through the microchannel plate from the first surface to the second surface. The plurality of holes are filled with a carbon nanotube slurry. The carbon nanotube slurry is adhered on inner walls of the plurality of holes. The carbon nanotube slurry in the plurality of holes is solidified.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: April 12, 2016
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Bing-Chu Du, Peng Liu, Duan-Liang Zhou, Chun-Hai Zhang, Shou-Shan Fan
  • Patent number: 9250363
    Abstract: A display includes: a laminated wiring with a conductive film arranged on a foundation layer, and a transparent film and a translucent film arranged on the conductive film; a wiring terminal part arranged at an edge portion of the laminated wiring and having the same laminated structure as that of the laminated wiring; and an insulating film that covers the laminated wiring and the wiring terminal part.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: February 2, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masami Hayashi, Kenichi Miyamoto, Nobuaki Ishiga, Naoki Tsumura, Kensuke Nagayama
  • Patent number: 9241115
    Abstract: An apparatus for displaying a scene with light in a range of infrared wavelengths, includes: an array of elements configured to emit light in a range of infrared wavelengths, each element having one or more nanotubes; a stimulator configured to apply a stimulus to each element in the array in order for each element to emit light in the range of infrared wavelengths; and a processor configured to send a signal to the stimulator in order to apply the stimulus to one or more selected elements in the array to display the scene.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: January 19, 2016
    Assignee: RAYTHEON COMPANY
    Inventors: William R. Owens, Delmar L. Barker
  • Patent number: 9171689
    Abstract: A method for making carbon nanotube field emitter includes providing a carbon nanotube array formed on a surface of a substrate. A plurality of carbon nanotubes of the carbon nanotube array is selected and pulled out a carbon nanotube film by a drawing tool, wherein the carbon nanotube film includes a plurality of carbon nanotubes oriented along a fixed direction. The carbon nanotube film is cut to a plurality of uniform carbon nanotube sub-films along the fixed direction. The plurality of carbon nanotube sub-films is treated to a plurality of carbon nanotube yarns. The plurality of carbon nanotube yarns is fixed on a surface of a conductive base, and cutting off the plurality of carbon nanotube yarns by a laser beam, to form a carbon nanotube field emitter.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: October 27, 2015
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Peng Liu, Li-Jiang Xu, Duan-Liang Zhou, Chun-Hai Zhang, Shou-Shan Fan
  • Patent number: 9167677
    Abstract: Provided are methods of aging an x-ray generator having carbon nanotube electron emitters. The method of aging an x-ray generator that includes a cathode, a gate electrode, and an anode, includes applying a desired, or alternatively predetermined anode voltage to the anode, and applying a direct current pulse voltage to the gate electrodes to emit electrons from electron emitters. The method further includes maintaining an anode current formed by electrons generated from the electron emitters constant.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: October 20, 2015
    Assignees: Samsung Electronics Co., Ltd., SRI International
    Inventors: Do-yoon Kim, Il-hwan Kim, Shang-hyeun Park, Chang-soo Lee, Tae-won Jeong, Paul R. Schwoebel, Yong-chul Kim
  • Patent number: 9156686
    Abstract: Provided is a manufacturing method of a CNT emitter with density controlled CNT, comprising: (i) fabricating a CNT paste by dispersing a carbon nanotube (CNT) powder, two kinds or more of inorganic fillers which have a lower melting temperature than the CNT and different oxidation degrees of the CNT, and an organic binder in a solvent; (ii) coating the CNT paste on an electrode formed above a substrate; (iii) sintering the substrate coated with the CNT paste to selectively oxidize the CNT around one kind of inorganic filler among two kinds or more of the inorganic fillers; and (iv) treating the surface of the CNT paste so that the surface of the CNT paste is activated.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: October 13, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Woo Jeong, Jun Tae Kang, Yoon Ho Song, Jae Woo Kim
  • Patent number: 9161439
    Abstract: A display device includes a laminated wiring formed of a low-resistance conductive film, and a low-reflection film mainly containing Al and functioning as an antireflective film which are sequentially arranged on a transparent substrate, a wiring terminal part provided at an end part of the laminated wiring and has the same laminated structure as that of the laminated wiring, and an insulating film for covering the laminated wiring and the wiring terminal part, in which the insulating film side serves as a display surface side, the wiring terminal part has a first opening part penetrating the insulating film and the low-reflection film and reaching the low-resistance conductive film, and an outer peripheral portion of the first opening part has a laminated structure of the low-resistance conductive film, the low-reflection film, and the insulating film, in at least one part.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: October 13, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masami Hayashi, Kenichi Miyamoto, Kazushi Yamayoshi, Junichi Tsuchimichi
  • Patent number: 9048055
    Abstract: A method for making carbon nanotube slurry is presented. At least one carbon nanotube film is provided, the at least one carbon nanotube film includes a plurality of carbon nanotubes oriented along substantially the same direction. A substrate is provided, and the at least one carbon nanotube film is attached to a surface of the substrate. The at least one carbon nanotube film is cut perpendicular the oriented direction of the carbon nanotubes with a laser to form a carbon nanotube belt. An inorganic binder and an organic carrier is provided, the carbon nanotube belt, the inorganic binder, and the organic carrier are mixed in an organic solvent to form a mixture. The organic solvent is removed.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: June 2, 2015
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Qi Cai, Peng Liu, Duan-Liang Zhou, Shou-Shan Fan
  • Patent number: 9040992
    Abstract: A display device includes a laminated wiring formed of a low-resistance conductive film, and a low-reflection film mainly containing Al and functioning as an antireflective film which are sequentially arranged on a transparent substrate, a wiring terminal part provided at an end part of the laminated wiring and has the same laminated structure as that of the laminated wiring, and an insulating film for covering the laminated wiring and the wiring terminal part, in which the insulating film side serves as a display surface side, the wiring terminal part has a first opening part penetrating the insulating film and the low-reflection film and reaching the low-resistance conductive film, and an outer peripheral portion of the first opening part has a laminated structure of the low-resistance conductive film, the low-reflection film, and the insulating film, in at least one part.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: May 26, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masami Hayashi, Kenichi Miyamoto, Kazushi Yamayoshi, Junichi Tsuchimichi
  • Patent number: 9034212
    Abstract: An electron emission source includes nano-sized acicular materials and a cracked portion formed in at least one portion of the electron emission source. The acicular materials are exposed between inner walls of the cracked portion. A method for preparing the electron emission source, a field emission device including the electron emission source, and a composition for forming the electron emission source are also provided in the present invention.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-chul Kim, In-taek Han, Ho-suk Kang
  • Patent number: 9000662
    Abstract: A field emission device includes a cathode and a carbon nanotube (CNT) gate electrode. The CNT gate electrode which is electrically insulated from the cathode includes a CNT layer and a dielectric layer. The CNT layer which has a surface includes a number of micropores. The dielectric layer is coated on the surface of the CNT layer and an inner wall of each of the micropores.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: April 7, 2015
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Peng Liu, Shou-Shan Fan, Yang Wei
  • Patent number: 8987982
    Abstract: A thermionic emission assembly includes a Wehnelt cap that has a cap beam aperture and a cavity within which a cathode is supported. Electrical energy applied to the cathode causes it to reach a sufficiently high temperature to emit a beam of electrons that propagate through the cap beam aperture. An anode having an anode beam aperture is positioned in spatial alignment with the cap beam aperture to receive the electrons. The anode accelerates the electrons and directs them through the anode beam aperture for incidence on a target specimen. A ceramic base forms a combined interface that electrically and thermally separates the Wehnelt cap and the anode. The thermal isolation of the Wehnelt cap from the anode allows the Wehnelt cap to increase in heat to rapidly reach a stable temperature as the cathode emits the beam of electrons.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: March 24, 2015
    Assignee: Applied Physics Technologies, Inc.
    Inventors: Gerald Magera, William Mackie, Larry Southall, Gary Cabe, Cory Fast
  • Patent number: 8957573
    Abstract: Wire-suspended thermionic cathodes provide lower power, further reduction in size, better stability and accuracy, and higher loading then conventional art. The cathodes are too small for use with conventional heaters and so are heated from behind by an electron beam or an intense light beam, such as laser light transmitted via optical fiber to the back of the cathode. The cathodes are electrically isolated from the focus electrode, thus allowing beam cutoff and modulation.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: February 17, 2015
    Inventor: Bernard K Vancil
  • Publication number: 20150047079
    Abstract: There is provided an iridium tip including a pyramid structure having one {100} crystal plane as one of a plurality of pyramid surfaces in a sharpened apex portion of a single crystal with <210> orientation. The iridium tip is applied to a gas field ion source or an electron source. The gas field ion source and/or the electron source is applied to a focused ion beam apparatus, an electron microscope, an electron beam applied analysis apparatus, an ion-electron multi-beam apparatus, a scanning probe microscope or a mask repair apparatus.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 12, 2015
    Applicant: Hitachi High-Tech Science Corporation
    Inventors: Tomokazu Kozakai, Osamu Matsuda, Yasuhiko Sugiyama, Kazuo Aita, Fumio Aramaki, Anto Yasaka, Hiroshi Oba
  • Patent number: 8952611
    Abstract: The present invention aims to prevent breakage of a sealing part and an electrode of a high pressure discharge lamp, and provides an electrode 100 used for a discharge lamp and having a rod-shaped part 101, one end of the rod-shaped part 101 to be sealed by a sealing part of an arc tube of the discharge lamp, the other end of the rod-shaped part 101 to be in a discharge space in the arc tube, wherein the rod-shaped part 101 has a rough surface that is composed of a plurality of types of crystal grains each having a different surface condition due to differences in crystal orientation.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: February 10, 2015
    Assignee: Panasonic Corporation
    Inventors: Jun Sakaguchi, Yoshiki Kitahara, Katsuhiro Ono, Kazunori Ohta
  • Patent number: 8917013
    Abstract: A carbon nanotube field emitter is disclosed. The carbon nanotube field emitter includes an emission portion and a supporting portion. The emission portion and the supporting portion are configured as one piece to form a roll structure. The emission portion includes a first rolled carbon nanotube layer, which includes a number of carbon nanotubes. The supporting portion includes a rolled composite layer, which includes at least one second rolled carbon nanotube layer and a rolled metal layer stacked with each other. Another carbon nanotube field emitter with a number of separated emission tips on the emission portion is also disclosed.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: December 23, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Peng Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 8907553
    Abstract: A cold cathode field emission electron source capable of emission at levels comparable to thermal sources is described. Emission in excess of 6 A/cm2 at 7.5 V/?m is demonstrated in a macroscopic emitter array. The emitter is comprised of a monolithic and rigid porous semiconductor nanostructure with uniformly distributed emission sites, and is fabricated through a room temperature process which allows for control of emission properties. These electron sources can be used in a wide range of applications, including microwave electronics and x-ray imaging for medicine and security.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: December 9, 2014
    Assignee: The United States of America as represented by the Secretary of Commerce, The National Institute of Standards and Technology
    Inventors: Fred Sharifi, Myung-Gyu Kang, Henri Lezec
  • Patent number: 8900029
    Abstract: The present application relates to a method for making a carbon nanotube field emitter. A carbon nanotube film is drawn from the carbon nanotube array by a drawing tool. The carbon nanotube film includes a triangle region. A portion of the carbon nanotube film closed to the drawing tool is treated into a carbon nanotube wire including a vertex of the triangle region. The triangle region is cut from the carbon nanotube film by a laser beam along a cutting line. A distance between the vertex of the triangle region and the cutting line can be in a range from about 10 microns to about 5 millimeters.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: December 2, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Peng Liu, Shou-Shan Fan
  • Patent number: 8872418
    Abstract: A field emission display is also provided. The field emission display includes a plurality of pixel units. Each of the plurality of pixel units includes a first electrode located on the insulating substrate; a plurality of first electron emitters located on and electrically connected to the first electrode; a first phosphor layer located on the first electrode; a second electrode located on the insulating substrate and spaced from the first electrode, wherein the second electrode extends at least partly around the first electrode; a plurality of second electron emitters located on and electrically connected to the second electrode; and a second phosphor layer located on the second electrode.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: October 28, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Peng Liu, Shou-Shan Fan
  • Patent number: 8847476
    Abstract: Embodiments of the invention include methods and devices for producing light by injecting electrons from field emission cathode across a gap into nanostructured semiconductor materials, electrons issue from a separate field emitter cathode and are accelerated by a voltage across a gap towards the surface of the nanostructured material that forms part of the anode. At the nanostructure material, the electrons undergo electron-hole (e-h) recombination resulting in electroluminescent (EL) emission. In a preferred embodiment lighting device, a vacuum enclosure houses a field emitter cathode. The vacuum enclosure also houses an anode that is separated by a gap from said cathode and disposed to receive electrons emitted from the cathode. The anode includes semiconductor light emitting nano structures that accept injection of electrons from the cathode and generate photons in response to the injection of electrons.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: September 30, 2014
    Assignee: The Regents of the University of California
    Inventor: Deli Wang
  • Patent number: 8841830
    Abstract: A field emission cathode device includes a substrate and a carbon nanotube structure. The substrate includes a first surface. The carbon nanotube structure defines a contact body and an emission body. The contact body is contacted to the first surface of substrate. The emission body is curved away from the first surface. The carbon nanotube structure includes a number of carbon nanotubes joined end to end from the contact body to the emission body to form a continuous structure.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: September 23, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Peng Liu, Shou-Shan Fan
  • Patent number: 8801487
    Abstract: A method for making an emitter is disclosed. A number of carbon nanotubes in parallel with each other are provided. The carbon nanotubes have a number of first ends and a number of second ends opposite to the number of first ends. The first ends are attached on a first electrode and the second ends are attached on a second electrode. The first electrode and the second electrode are spaced from each other. A voltage is supplied between the first electrode and the second electrode to break the carbon nanotubes.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: August 12, 2014
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yang Wei, Peng Liu, Liang Liu, Shou-Shan Fan
  • Patent number: 8710743
    Abstract: A discharge lamp (1) comprising a discharge vessel (4), at least one electrode (22, 24) arranged within the discharge vessel, wherein at least parts of the electrode (22) are provided with a particle composite coating (32) made up of a matrix layer and particles embedded in the matrix layer, wherein the extinction coefficient k of the material for the matrix layer is less than 0.1 in the spectral range between 600 nm and 2 ?m, and wherein the extinction coefficient k of the material for the particles is greater than 0.1 in the spectral range between 600 nm and 2 ?m.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: April 29, 2014
    Assignee: Osram GmbH
    Inventor: Bernhard Winzek
  • Patent number: 8636872
    Abstract: Plasma uniformity can be improved. An upper electrode 105 for use in a parallel plate type plasma processing apparatus includes a base 105a made of a dielectric material; and a conductive layer 110 formed on at least a part of a surface of the base 105a facing a lower electrode 210 provided in the plasma processing apparatus. Further, the conductive layer 110 having a dense and sparse pattern such that the dense and sparse pattern at an outer portion of the surface of the base 105a facing the lower electrode 210 is denser than at an inner portion thereof.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: January 28, 2014
    Assignee: Tokyo Electron Limited
    Inventor: Shoichiro Matsuyama
  • Patent number: 8614581
    Abstract: A vacuum ionization gauge includes a cold cathode, a shield electrode, an anode ring, and a collector. The shield electrode includes a receiving space. The anode ring is located in the receiving space of the shield electrode. The cold cathode includes a field emission unit and a grid electrode corresponding to the field emission unit. The field emission unit includes at least one emitter. Each of the at least one emitter includes a carbon nanotube pipe. The carbon nanotube pipe has a first end, a second end, and a main body connecting to the first end and the second end. The second end has a plurality of carbon nanotube peaks.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: December 24, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Yang Wei, Shou-Shan Fan
  • Patent number: 8604681
    Abstract: Described herein are improved ion thruster components and ion thrusters made from such components. Further described are methods of making and using the improved ion thruster components and ion thrusters made therefrom. An improved cathode includes an emitter formed from a plurality of vertically aligned carbon nanotubes. An ion thruster can include the improved cathode.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: December 10, 2013
    Assignee: Georgia Tech Research Corporation
    Inventors: William Judson Ready, Mitchell L. R. Walker, II
  • Patent number: 8598774
    Abstract: A field emission device includes an insulating substrate, a number of first electrode down-leads, a number of second electrode down-leads, and a number of electron emission units. The first electrode down-leads are set an angle relative to the second electrode down-leads to define a number of cells. Each electron emission unit is located in each cell and includes a first electrode, a second electrode, and a plurality of electron emitters. The second electrode extends surrounding the first electrode. The plurality of electron emitters located on and electrically connected to at least one of the first electrode and the second electrode. A field emission display is also provided.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: December 3, 2013
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Peng Liu, Shou-Shan Fan
  • Patent number: 8593049
    Abstract: A field electron emitter including a metal electrode; and a plurality of carbon nanotubes, wherein a portion of the plurality of carbon nanotubes protrude from a surface of the metal electrode and a portion of the plurality of carbon nanotubes are in the metal electrode. Also disclosed is a field electron emission device including the field electron emitter and a method of manufacturing the field electron emitter.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: November 26, 2013
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Yoon-chul Son, Yong-chul Kim, Jeong-na Heo, Woo-sung Cho, Byeong-kwon Ju
  • Patent number: 8593048
    Abstract: Provided are an electron source which allows a high-angle current density operation even at a low extraction voltage, and reduces excess current that causes vacuum deterioration; and an electronic device using the electron source. The electron source has a cathode composed of single-crystal tungsten, and a diffusion source provided in the intermediate portion of the cathode. In the cathode, the angle between the axial direction of the cathode and <100> orientation of the cathode is adjusted so that electrons to be emitted from the vicinity of the boundary between surface and surface formed on the tip of the cathode, are emitted substantially parallel to the axis of the cathode. The electronic device is provided with the electron source.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: November 26, 2013
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Ryozo Nonogaki, Toshiyuki Morishita
  • Patent number: 8587188
    Abstract: An infrared radiation emitting element is provided. A carbonized conducting filament is formed from an insulating substrate material. Passing current through the filament produces radiation in the infrared band. The radiation emitted is tuned by altering the physical or chemical characteristics of the filament. A substrate is optionally doped prior to filament formation. Alternatively, or in addition, a post-filament formation doping process is used. The light-emitting element is a durable, low power IR emitter that is operable as a marker.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: November 19, 2013
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: John M. Ingram, Augustus W. Fountain, III, Thomas M. Spudich
  • Patent number: 8581481
    Abstract: A thermionic emission assembly includes a Wehnelt cap that has a cap beam aperture and a cavity within which a cathode is supported. Electrical energy applied to the cathode causes it to reach a sufficiently high temperature to emit a beam of electrons that propagate through the cap beam aperture. An anode having an anode beam aperture is positioned in spatial alignment with the cap beam aperture to receive the electrons. The anode accelerates the electrons and directs them through the anode beam aperture for incidence on a target specimen. A ceramic base forms a combined interface that electrically and thermally separates the Wehnelt cap and the anode. The interface thermally isolates the Wehnelt cap from the anode to allow the cathode to rapidly reach the sufficiently high temperature to emit the beam of electrons.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: November 12, 2013
    Assignee: Applied Physics Technologies, Inc.
    Inventors: Gerald Magera, William Mackie, Larry Southall, Gary Cabe, Cory Fast
  • Patent number: 8575832
    Abstract: The present invention relates to a field emission display, which includes: a base substrate; a plurality of cathode strips, disposed over the base substrate; an insulating layer, disposed over the cathode strips and having a plurality of openings, therewith the openings corresponding to the cathode strips; a plurality of anode strips, disposed over the insulating layer, where the cathode strips and the anode strips are arranged into a matrix and the anode strips individually have at least one impacted surface; and a plurality of subpixel units, individually including: an emissive region having a phosphor layer disposed over the impacted surface; and at least one emissive protrusion, corresponding to the emissive region and disposed in the openings to electrically connect to the cathode strips and protrude out of the openings. Accordingly, the present invention can enhance light utilization efficiency of a field emission display.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 5, 2013
    Assignee: Tatung Company
    Inventors: Tzung-Han Yang, Chi-Tsung Lo