Patents Examined by Kenneth J. Ramsey
  • Patent number: 7462090
    Abstract: A method for detecting radiation is disclosed that includes forming a detector having a photocathode (22) with a protective layer (22c) of cesium, oxygen and fluorine; a microchannel plate (MCP) (24); and an electron receiver (26). Radiation is received at the photocathode (22). The photocathode (22) discharges electrons (34) in response to the received photons. Discharged electrons (34) are accelerated from the photocathode (22) to the input face (24a) of the microchannel plate (24). The electrons (34) are received at the input face (24a) of the microchannel plate (24). A cascade of secondary emission electrons (36) is generated in the microchannel plate (24) in response to the received electrons (34). The secondary emission electrons (36) are emitted from the output face (24b) of the microchannel plate (24). Secondary emission electrons (36) are received at the electron receiver (26). An output characteristic of the secondary emission electrons (36) is produced.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: December 9, 2008
    Assignee: Northrop Grumman Guidance and Electronics Company, Inc.
    Inventors: Joseph P. Estrera, Adriana Giordana, John W. Glesener
  • Patent number: 6935915
    Abstract: A method of fabricating a field emission display employing carbon nanotubes (CNTs) as electron emitters is provided. The method includes forming a cathode on a substrate; forming a gate insulation layer having a plurality of gate holes on the cathode; forming a gate electrode having a plurality of via-holes corresponding to the gate holes, respectively, on the gate insulation layer; forming a plurality of conductive columns higher than the gate electrode on the cathode within the respective gate holes; adhering the CNTs to the bottom of a plate template which is separately provided; bringing the bottom of the template having the CNTs to contact the tops of the conductive columns to adhere the CNTs to the tops of the conductive columns; and firing the conductive columns to lower the levels thereof.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: August 30, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Shang-hyeun Park, Deuk-seok Chung, Hang-woo Lee
  • Patent number: 6881115
    Abstract: There is provided an electron emitting device including a substrate, a pair of electrodes formed on the substrate and being apart from each other, a pair of electrically conductive films formed on the electrodes, respectively, and being apart from each other, a distance between the electrically conductive films being shorter than a distance between the electrodes, and an electron emitting film formed between the electrically conductive films, the electron emitting film containing boron and at least one of carbon and nitrogen.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: April 19, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiko Yamamoto, Yoshiki Ishizuka, Yumi Fukuda, Hironori Asai, Koji Suzuki
  • Patent number: 6869327
    Abstract: The invention relates to a method for recovering of fluorescent material from faulty glass bodies (1) of discharge lamps by crushing (11) the lamps, separating and recovering the fluorescent components thereof. The method comprises the steps of breaking the faulty glass bodies (1) in a crusher, removing all metallic component parts if present in the glass bodies (1) by means of electromagnetic separation (13), separating a remaining fraction forming a reusable waste from the broken scrap including glass particles and fluorescent material particles by sieving (15), separating the fluorescent material from the surface of the glass particles in a liquid by washing (19), and obtaining a reusable fluorescent material from the liquid suspension by means of at least one sedimentary deposition (21). The method comprises the step of treating of the remaining fraction by heat for removing the binding material from the fluorescent material if it is necessary.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: March 22, 2005
    Assignee: General Electric Company
    Inventors: Miklós György, Sándor Lukács, Erzsébet Cserteg, Erzsébet Tóth, Géza Kamenár
  • Patent number: 6860776
    Abstract: A method for producing a high pressure discharge lamp unit including a high pressure discharge lamp set and fixed to a reflecting mirror includes the steps of detecting light released from a point-like light source and reflected at a reflecting surface of the reflecting mirror to determine a position for setting that is a position of the point-like light source in which the reflected light is substantially the maximum; identifying a predetermined position between electrodes of the high pressure discharge lamp; and matching the predetermined position to the position for setting.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: March 1, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Makoto Kai, Makoto Horiuchi, Kiyoshi Takahashi, Yuriko Kaneko, Shinichiro Hataoka, Tsuyoshi Ichibakase, Tomoyuki Seki, Kenichi Sasaki
  • Patent number: 6860779
    Abstract: A method for manufacturing an airtight vessel seals an evacuation tube after evacuating the inside of the vessel using the evacuation tube. A getter previously disposed in the vessel is activated followed by fusing a part of the evacuation tube to seal the vessel while heating the vessel.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: March 1, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidehiko Fujimura, Toru Aruga, Masaaki Ogura
  • Patent number: 6843696
    Abstract: A method of producing a fiber, comprising the steps of introducing catalytic particles originally formed in a particle-forming chamber into an arraying chamber together with a carrier gas, to cause the catalytic particles to become arranged on a substrate disposed in the arraying chamber. A next step includes growing fibers, each including carbon as a major component, based on the catalytic particles arranged on the substrate. The fibers grow by heating the catalytic particles arranged on the substrate in an atmosphere containing carbon.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: January 18, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shin Kitamura, Takeo Tsukamoto, Junri Ishikura
  • Patent number: 6840835
    Abstract: A masking layer (405) is provided on selected areas of an electrode structure that is at least partly performed, to define masked areas and unmasked areas (emitter cells 410). A first constituent with particles (408) and a second constituent (409) are then applied to the emitter cells (410), and the particles (408) are selectively directed towards the bottoms of the emitter cells (410)—e.g. by electrophoresis. The masking layer (405) is then removed from the masked areas, together with any stray quantities of the first and second constituents (408, 409) on the masking layer (405). The first and second constituents (408, 409) are then processed (e.g. by curing) to create broad area field electron emission sites in desired locations of the electrode structure.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: January 11, 2005
    Assignee: Printable Field Emitters Limited
    Inventor: Richard Allan Tuck
  • Patent number: 6835110
    Abstract: To provide a method for manufacturing an electron source having electron-emitting devices with excellent electron-emitting property arranged on a substrate and enabling an image-forming apparatus capable of displaying an image with high brightness and uniformity to be enhanced in terms of screen size and production scale. The method for manufacturing the electron source includes a step of disposing a plurality of units and a plurality of wirings connected to the plurality of units on a substrate, each unit including a polymer film and a pair of electrodes with the polymer film interposed therebetween, and a step of forming electron-emitting devices from the plurality of units by repeatedly performing a process including a selecting substep of selecting a desired number of units from the plurality of units, a resistance-reducing substep of reducing resistance of the polymer films of the selected units and a gap-forming substep of forming a gap in each of the films formed by the resistance-reducing substep.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: December 28, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hironobu Mizuno, Masaharu Naka, Koki Nukanobu
  • Patent number: 6827620
    Abstract: In a method of manufacturing a spark plug in which a noble metal chip provisionally fixed to a center or ground electrode by resistance welding and finally bonded to the center or ground electrode by laser welding, a current supply time period of the resistance welding is controlled according to a transit moving amount of an upper or lower electrode of a resistance welding equipment, which corresponds to a transit embedding length of the noble metal chip to the center or ground electrode, to establish a predetermined final embedding amount of the noble metal chip to the center or ground electrode.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: December 7, 2004
    Assignee: Denso Corporation
    Inventor: Akihiko Mizutani
  • Patent number: 6821174
    Abstract: In a method of manufacturing an image display apparatus, a first member having an electron-emitting device and a second member having a phosphor which is irradiated with an electron emitted from the electron-emitting device to emit light are seal-bonded in a seal bonding chamber in which a vacuum atmosphere is realized. An aging step for the electron-emitting device is performed before the step of seal-bonding.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: November 23, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Kaneko, Kohei Nakata, Toshihiko Miyazaki
  • Patent number: 6811457
    Abstract: A method for fabricating the cathode plate of a carbon nano tube field emission display uses a photosensitive paste and etchable dielectric material to fabricate the cathode plate. The method combines photolithography process and etching process to fabricate a cathode electrode layer, a dielectric layer, a gate layer, and a carbon nano tube emission layer. Packing this cathode plate structure with a conventional anode plate together can form a carbon nano tube field emission array. The distribution of the electric field is uniform and the alignment at post-process is made easy.
    Type: Grant
    Filed: February 9, 2002
    Date of Patent: November 2, 2004
    Assignee: Industrial Technology Research Institute
    Inventors: Hua-Chi Cheng, Cheng-Chung Lee, Jane-Hway Liao, Yu-Yang Chang, Jyh-Rong Sheu, Jia-Chong Ho
  • Patent number: 6800010
    Abstract: Barrier ribs 18 formed on a back substrate PA2 are brought into contact with a bonding paste layer 40 having an even surface, applying a bonding agent Bd evenly to the tops of the barrier ribs. Furthermore, a gas discharge panel having a structure in which discharge mainly occurs at locations distanced from parts of the panel connected using the bonding agent Bd is realized.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: October 5, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Junichi Hibino, Choujurou Yamamitsu, Hiroyuki Yonehara, Yoshiki Sasaki, Katuyoshi Yamashita, Nobuyuki Kirihara, Kazuo Ootani, Yuusuke Takada, Hideaki Yasui, Ryuichi Murai, Hidetaka Hiagshino, Nobuaki Nagao, Masafumi Ookawa, Hiroyosi Tanaka
  • Patent number: 6796867
    Abstract: An improved light-emitting panel having a plurality of micro-components sandwiched between two substrates is disclosed. Each micro-component contains a gas or gas-mixture capable of ionization when a sufficiently large voltage is supplied across the micro-component via at least two electrodes. An improved method of manufacturing a light-emitting panel is also disclosed, which uses a web fabrication process to manufacturing light-emitting displays as part of a high-speed, continuous inline process.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: September 28, 2004
    Assignee: Science Applications International Corporation
    Inventors: E. Victor George, Albert M. Green, N. Convers Wyeth
  • Patent number: 6794804
    Abstract: A spark plug and a production method thereof is provided which is designed to improve the high temperature oxidation resistance of a ground electrode without sacrificing the mechanical strength of a weld of the ground electrode with a metal shell. The ground electrode is made of a Ni-based alloy containing 10% or more by weight of Cr and 1.5% or more by weight of Al and joined to the metal shell by resistance welding in a substantially oxygen free atmosphere.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: September 21, 2004
    Assignee: Denso Corporation
    Inventors: Keiji Kanao, Tsunenobu Hori
  • Patent number: 6786787
    Abstract: An airtight vessel is formed with restraining a vacuum leak and without increase in the number of steps. Provided is a method for producing an image-forming apparatus comprising the airtight vessel in which a rear plate having an electron-emitting device and a wire connected to the element, and a face plate having an electrode are joined to each other through a jointing material, the method comprising the following steps: (A) a first step of forming a first wire which is a part of the wire and which passes through the joint part to connect the inside of the vessel to the outside, by applying a paste comprising particles of an electric conductor and baking the paste; and (B) a second step of forming a second wire located in the vessel, by applying a paste comprising particles of an electric conductor so as to be connected to the first wire inside the vessel and baking the paste, after formation of the first wire.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: September 7, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshihiro Yanagisawa
  • Patent number: 6769945
    Abstract: A triode structure of a field emission display is manufactured with thick-film technology. The triode structure includes a cathode electrode layer that comprises a metallic catalyst. Isomeric carbon emitters can be grown on the cathode electrode layer by CVD process at a low temperature because of the metallic catalyst. Instead of mixing the metallic catalyst in the cathode electrode layer, a metallic catalyst layer can be formed on the cathode electrode layer to facilitate the growth of the isomeric carbon emitters. The combination of thick film technology and low temperature CVD process provide a low cost method for fabricating a large area field emission display with isomeric carbon emitters.
    Type: Grant
    Filed: August 24, 2002
    Date of Patent: August 3, 2004
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Yang Chang, Hua-Chi Cheng, Jyh-Rong Sheu, Ching-Hsun Chao, Kuang-Chung Chen
  • Patent number: 6764366
    Abstract: An electrode structure for a display that includes lower electrodes and upper electrodes. In one embodiment, lower and upper electrodes are formed of either an aluminum alloy or a silver alloy. In another embodiment, upper and lower electrodes are formed using a metal alloy layer over which a cladding layer is deposited. A silicon nitride passivation layer is used to protect the upper electrodes from damage in subsequent process steps. Various other materials and structures are also disclosed that protect the upper electrodes from damage in subsequent process steps.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: July 20, 2004
    Assignees: Candescent Intellectual Property Services, Inc., Candescent Technologies Corporation
    Inventors: Jueng Gil Lee, Christopher J. Spindt, Johan Knall, Matthew A. Bonn, Kishore K. Chakravorty
  • Patent number: 6764369
    Abstract: Mass production encapsulation equipment and method for mass production of organic light emitting display devices, having a transporting system, a panel supply system, multiple dispensing systems, turning/storage system, cover plate supply system, lamination/ultra-violet radiation system, and an ultra-violet radiation system. The above systems are linked via the transmission system. Being supplied by the panel supply system, a panel is transported to the turning/storage system for turning over. The panel is then transported into alternate dispensing systems for resin coating. The panel coated with resin is again transported to the turning/storage system for storage. The first exposure stage is performed by an aligning lamination performed on the panel and a cover plate supplied by the cover plate supply system in the lamination/ultra-violet radiation system. The second exposure stage is further performed to cure the resin in the ultra-violet radiation system.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: July 20, 2004
    Assignee: RiTdisplay Corporation
    Inventors: Yuang-Wei Lai, Jih-Yi Wang, Mao-Kuo Wei
  • Patent number: 6764367
    Abstract: A method for manufacturing a light-emitting panel sandwiches a plurality of micro-components between two flexible substrates in a web configuration. Each micro-component contains a gas or gas-mixture capable of ionization when a sufficiently large voltage is supplied across the micro-component via at least two electrodes. The micro-components are disposed in sockets formed at pre-determined locations in a first dielectric substrate so that they are adjacent to electrodes imprinted in the first substrate. Dielectric layers and the conductors for acting as electrodes are formed using liquid processes or combined liquid and sheet processes, where liquid materials are applied to the surface of the underlying layer, then cured to complete the formation of layers. The assembled layers are coated with a protective coating and may include an RF shield. In one embodiment, patterning of the conductors is achieved by applying conductive ink using an ink jet process.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: July 20, 2004
    Assignee: Science Applications International Corporation
    Inventors: Albert M. Green, E. Victor George, N. Convers Wyeth