Patents Examined by Dalei Dong
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Patent number: 7085461Abstract: An optical fiber includes a substantially transparent core that carries a light signal, a substantially transparent cladding surrounding the core, and within the cladding and distinct from the core, at least one visualization member facilitating visualization of one or more elements of the fiber structure.Type: GrantFiled: April 17, 2002Date of Patent: August 1, 2006Assignee: Verrillon, Inc.Inventors: Abdelouahed Soufiane, William B. Beck
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Patent number: 7074105Abstract: A catalyst for promoting growth of carbon fiber, which is capable of growing satisfactorily at a low temperature without needing complex process and applicable to such as electron emitting device. The catalyst used for growth of carbon fiber contains Pd and at least one element selected in the group consisting of Fe, Co, Ni, Y, Rh, Pt, La, Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er and Lu, in which 20˜80 atm % (atomic percentage) of the selected at least one element is contained to Pd.Type: GrantFiled: March 27, 2002Date of Patent: July 11, 2006Assignee: Canon Kabushiki KaishaInventors: Shinichi Kawate, Takeo Tsukamoto
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Patent number: 7067967Abstract: An arc lamp having window flange with slots has been disclosed. The arc lamp may include a reflector body having a circular rim at one end to define an opening, the circular rim having an outer diameter and an inner diameter and a window flange including a surface having a first end and a second end, the first end defining a circle having a diameter larger than the inner diameter of the circular rim of the reflector body, and the surface being brazed to the circular rim along at least a portion of the first end, wherein the window flange further includes a second surface extending from the first end of the first surface to define a plurality of slots. The arc lamp may further include a window mounted to the window flange near the second end of the window flange.Type: GrantFiled: July 13, 2004Date of Patent: June 27, 2006Assignee: Vaconics Lighting, Inc.Inventors: Roy D. Roberts, James P. Huynh
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Patent number: 7063583Abstract: A multi-spectral uniform light source provides a single light source for a variety of applications. The gas or gases inside the light source may be exchanged for another gas or gases depending on the desired application and need for a particular wavelength of emitted light.Type: GrantFiled: March 23, 2001Date of Patent: June 20, 2006Assignee: WaferMasters, Inc.Inventor: Woo Sik Yoo
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Patent number: 7059780Abstract: The present invention relates to an optical module with a small size and improved mass-productivity. The optical module comprises a fiber stub including an optical fiber, a sleeve containing the fiber stub, and a semiconductor optical amplifying device. A Bragg fiber grating is formed in the optical fiber. The optical fiber is secured in the ferrule. The optical amplifying device and the grating form a laser cavity. Only a part of the hollow portion of the sleeve is filled with the fiber stub. One end face of the optical fiber is disposed at one end of the sleeve. The other end of the sleeve is hollow. The optical module acts as an optical receptacle. An optical plug can be inserted into the hollow end of the sleeve. This enables the laser light to be introduced into an external optical device.Type: GrantFiled: May 7, 2002Date of Patent: June 13, 2006Assignee: Sumitomo Electric Industries, Ltd.Inventors: Naoyuki Yamabayashi, Hiromi Nakanishi, Yoshiki Kuhara
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Patent number: 7061182Abstract: A metal halide lamp has an arc tube including an arc tube container made of an oxide-based translucent ceramic material. The arc tube is filled with cerium halide as a luminescent material and a halide of a rare earth element that is more reactive with the ceramic material than is the cerium halide. Accordingly, a reaction between the oxide-based translucent ceramic material and the halide of a rare earth element is accelerated while a reaction between the oxide-based translucent ceramic material and the cerium halide is suppressed. This suppresses a decrease of the cerium halide that serves for light emission, and also reduces changes in the lamp color temperature. Thereby, during aging of the lamp, the flux maintenance factor and color temperature are improved. Therefore, the indoor-outdoor metal halide lamp provides a white light source color that has high-wattage, high luminous efficiency, and a long service life.Type: GrantFiled: June 27, 2002Date of Patent: June 13, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masanori Higashi, Yoshiharu Nishiura, Shigefumi Oda, Hiroshi Enami, Shunsuke Kakisaka
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Patent number: 7057339Abstract: A tuned OLED device includes a microcavity structure including a light-emitting layer for producing light, a semitransparent reflector, and a reflector layer disposed on opposite sides of the light-emitting layer, the microcavity structure enhancing on-axis light produced from the light-emitting layer in at least one particular wavelength to produce a desired on-axis viewed color while not substantially enhancing on-axis other wavelengths of such light; and a layer including a color change medium which is responsive to wavelengths of light shorter than the particular wavelength by absorbing such shorter wavelengths of light and emitting light corresponding in color to the particular wavelength, thereby improving the color of the light produced by the OLED device when viewed in an off-axis direction.Type: GrantFiled: April 8, 2004Date of Patent: June 6, 2006Assignee: Eastman Kodak CompanyInventors: Michael L. Boroson, Dustin L. Winters, Yuan-Sheng Tyan, Keith B. Kahen
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Patent number: 7053537Abstract: An electron beam apparatus in which a spacer having a high-resistance film coating a surface of a base material is inserted between a rear plate having electron emitting elements and row-direction wires, and a faceplate having a metal back. The row-direction wires and the metal back are electrically connected via the high-resistance film. An electric field near an electron emitting element near the spacer is maintained to substantially constant irrespective of the positional relationship between the spacer and the electron emitting element near the spacer. When a sheet resistance value of the high-resistance film on a first facing surface of the spacer that faces a row-direction wire is represented by R1, and a sheet resistance value of the high-resistance film on a side surface adjacent to the electron emitting element is represented by R2, R2/R1 is 10 to 200.Type: GrantFiled: May 27, 2004Date of Patent: May 30, 2006Assignee: Canon Kabushiki KaishaInventors: Taro Hiroike, Koji Yamazaki, Yoichi Ando
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Patent number: 7049747Abstract: An integrated micro-photomultiplier is disclosed which employs sub-micron-wide channels for electron amplification. These channels are created with standard lithographic and planar-fabrication techniques, and sealed with a vacuum-deposition process. A photocathode, continuous dynode, anode and signal-collector are fabricated along the channels. This photomultiplier design obviates the needs for through-substrate etching, and mechanical assembly of separate layers. Because large-scale-integration techniques can be used to fabricate multiple micro-photomultipliers, significant reductions in device cost and size are expected. The integrated micro-photomultiplier is useful for high-speed, low-light-level optical detection, and may find applications in optical communications, visible or infrared imaging, and chemical or biological sensing.Type: GrantFiled: June 26, 2003Date of Patent: May 23, 2006Assignee: Massachusetts Institute of TechnologyInventors: James G. Goodberlet, Vemura H. S. Moorthy
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Patent number: 7044822Abstract: A substrate, a cathode electrode formed on the substrate, a gate insulating layer which is formed on the cathode electrode and has a through hole corresponding to part of the cathode electrode, a gate electrode which has a gate hole corresponding to the through hole and is formed on the gate insulating layer, and an emitter formed on the gate electrode exposed to the bottom of the through hole. The emitter has a stack structure formed of a resistive material layer and an electron emission material layer containing a fine electron emission source formed on the resistive material layer.Type: GrantFiled: December 16, 2003Date of Patent: May 16, 2006Assignee: Samsung SDI Co., Ltd.Inventors: Jeong-Hee Lee, Hang-Woo Lee, Shang-Hyeun Park, You-Jong Kim
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Patent number: 7046892Abstract: A holographic medium is formed of an optical waveguide including at least one core layer positioned between at least one portion of a material having a lower refractive index, a diffraction grating layer formed at a boundary between the core layer and the material of lower refractive index or in the core layer, and a storage layer outside the optical waveguide. Upon storing information in the storage layer a reference beam and an object are input into the optical waveguide and in retrieving stored information the reference beam is emitted to an end face of the core layer and transmitted through the core layer to be transformed into a diffracted beam in a diffraction grating layer that is emitted outside the core layer and transmitted through the storage layer, where the object beam is retrieved as a retrieved beam.Type: GrantFiled: June 19, 2002Date of Patent: May 16, 2006Assignee: Nippon Telegraph and Telephone CorporationInventors: Hiroshi Yoshikawa, Yasuko Andoh, Keiichiro Itoh, Masakatsu Senda, Yoshiaki Kurokawa, Takaya Tanabe
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Patent number: 7045939Abstract: A spark plug used in an automotive internal combustion engine. The spark plug includes a center electrode. An insulator is disposed around the center electrode. A metal main body is disposed around the insulator. A ground electrode has a first end section connected to the metal main body, and a second end section located opposite to the center electrode. Additionally, a tip is formed of an alloy whose main component is Ir. The tip is secured to the ground electrode and serving as a spark consumption-resistant electrode material. The tip has an axis directed to the center electrode. In the spark plug, a molten and solidified section formed of alloy is disposed to fix the tip to the ground electrode. The molten and solidified section includes a surrounding molten and solidified section located surrounding a peripheral surface of a major part of the tip embedded in the ground electrode.Type: GrantFiled: March 18, 2002Date of Patent: May 16, 2006Assignee: NGK Spark Plug Co., Ltd.Inventors: Hideki Teramura, Mamoru Musasa, Kiyohiro Kondo
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Patent number: 7045952Abstract: An organic light emitting device is provided. The devices of the present invention comprise an emissive region having at least two emissive layers, with at least one layer comprising a first host and another layer comprising a first and a second host, and each layer further comprising a phosphorescent emissive material. In one embodiment, the device comprises an emissive region disposed between and electrically connected to an anode and a cathode, wherein the emissive region comprises (i) a first single-host emissive layer, comprising a first host material, and (ii) a mixed-host emissive layer in direct contact with the first single-host layer, wherein the mixed-host layer comprises the first host material, and a second host material, and wherein the first single-host layer and the mixed-host layer each further comprise a phosphorescent emissive material.Type: GrantFiled: March 4, 2004Date of Patent: May 16, 2006Assignee: Universal Display CorporationInventor: Michael Lu
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Patent number: 7045941Abstract: A shadow mask has a main mask and an auxiliary mask overlapped on the main mask. Electron beam passage apertures formed in the main mask and the auxiliary mask are arranged at given pitches in the direction of a major axis. Each electron beam passage aperture of the auxiliary mask is a communicating hole, which is formed of a smaller hole in that surface of the auxiliary mask which is in contact with the main mask and a larger hole opening in the opposite surface of the auxiliary mask. The smaller and larger holes of each electron beam passage aperture of the auxiliary mask have their respective central axes extending coaxially with each other and substantially at right angles to the surface of the auxiliary mask in the direction of the major axis.Type: GrantFiled: January 30, 2004Date of Patent: May 16, 2006Assignee: Kabushiki Kaisha ToshibaInventors: Takuya Mashimo, Tohru Takahashi, Hiroyuki Oda, Takeshi Nakayama
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Patent number: 7045937Abstract: An electric lamp includes a light-transmitting lamp vessel which accommodates a light source. At least a part of the lamp vessel is provided with a light-absorbing coating which has stabilized pigments that are incorporated in a sol-gel matrix. Aminosilane is included in order to stabilize the pigments.Type: GrantFiled: September 13, 2002Date of Patent: May 16, 2006Assignee: Koninklijke Philips Electronics N.V.Inventors: Marcel Rene Boehmer, Theodora Antonia Petra Maria Keursten
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Patent number: 7044821Abstract: Plural first exhaust pipes are disposed as exhaust paths at an upper portion of a heat treatment apparatus. Exhaust gases are discharged from the inside of the heat treatment apparatus to the respective exhaust pipes. Inlets of catalyst units are connected to outlets of the first exhaust pipes, and second exhaust pipes are connected to outlets of the catalyst units. Exhaust gases are discharged from exhaust ports of the second exhaust pipes to the outside (e.g., the atmosphere) of the heat treatment apparatus.Type: GrantFiled: December 16, 2003Date of Patent: May 16, 2006Assignees: Pioneer Corporation, Pioneer Display Products CorporationInventors: Junji Kogure, Masaaki Nakamura, Mineaki Yokoyama
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Patent number: 7038366Abstract: A lamp capsule may be formed with substantially parallelepipedial ends including alignments. A metal strap may surround one end, between the alignments, with first and second oppositely disposed affixation areas of extensions. A glass stem has tubular first portion with outside diameter D. A C-shaped clip is mounted upon the tubular first portion. The clip has height H and inside diameter D1 smaller than the outside diameter D. The clip frictionally engages the tubular first portion. A first frame member has a proximal terminus affixed to the clop and a second frame member has a proximal terminus affixed to the clip opposite the first frame member. The first frame member has a distal terminus affixed to the one affixation area and second frame member has a distal terminus affixed to the other affixation area. The first and second frame members and the metal strap provide the support for the capsule.Type: GrantFiled: March 31, 2004Date of Patent: May 2, 2006Assignee: Osram Sylvania Inc.Inventors: Glen P. Williamson, Ebon L. McCullough
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Patent number: 7037160Abstract: A color cathode-ray tube (CRT) having an evacuated envelope with an electron gun therein for generating at least one electron beam is provided. The envelope further includes a faceplate panel having a luminescent screen with phosphor elements on an interior surface thereof. A focus mask, having a plurality of spaced-apart first conductive strands, is located adjacent to an effective picture area of the screen. The spacing between the first conductive strands defines a plurality of apertures substantially parallel to the phosphor elements on the screen. Each of the first conductive strands has a substantially continuous insulating material layer formed on a screen facing side thereof. A plurality of second conductive wires are oriented substantially perpendicular to the plurality of first conductive strands and are bonded thereto by the insulating material layer. The insulating material layer comprises a low porosity lead-zinc-borosilicate glass.Type: GrantFiled: June 22, 2004Date of Patent: May 2, 2006Assignee: Thomson LicensingInventors: Attiganal Narayanaswamy Sreeram, Leszek Hozer
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Patent number: 7037156Abstract: A plasma display panel capable of realizing improvement in the characteristics thereof, such as lower discharge voltage, more stable discharge, higher luminance, higher efficiency, and longer life. Before a step of sealing the periphery of substrates, impurity gas containing CO2, H2O and CH4 is other then inert gas is adsorbed by phosphor layers. The impurity gas is released into discharge gas and while the panel is lit. This method can realize improvement in characteristics, such as lower discharge voltage, higher luminance, higher efficiency, and longer life.Type: GrantFiled: December 20, 2002Date of Patent: May 2, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masaki Nishimura, Koji Akiyama, Kanako Miyashita, Koji Aoto, Keiji Horikawa, Masaaki Yamauchi
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Patent number: 7037161Abstract: To enable formation of a pattern of constituent elements, arranged in correspondence with an arrangement of cells in a display region, as desired or required with a minimized quantity of the film material, a method of manufacturing a flat panel display is provided which includes printing on a substrate a surface treating material capable of partially enhancing the wettability of the substrate, in a predetermined pattern sufficient to encompass the eventually formed pattern of constituent elements of the flat panel display. Undercoats made of the surface treating material so printed is then patterned by irradiation of light. Thereafter, utilizing the undercoats, a film material is thereafter selectively deposited on the substrate to thereby complete the predetermined pattern of the constituent elements.Type: GrantFiled: May 5, 2004Date of Patent: May 2, 2006Assignee: Fujitsu Hitachi Plasma Display LimitedInventor: Hiroshi Yamanaka