Patents Issued in January 9, 2003
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Publication number: 20030006655Abstract: The present invention provides methods forType: ApplicationFiled: May 8, 2002Publication date: January 9, 2003Inventor: Ming (Jason) Zhang
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Publication number: 20030006656Abstract: A battery operated lightweight display device comprises a housing (22) containing an electrically operable stepper motor (1), the stepper motor including a magnetic rotor (6), the rotor having single or multiple magnetic pole pairs, a bi-polarisable stator (3) and associated coil (8); a drive circuit (2) for driving the stepper motor at high speed by means of discrete electric drive pulses; a gear train (18,19,20 and 21) drivingly connected between the rotor and a rotatable display support element (16); the display support element being adapted to support an object to be displayed (24) and rotated relative to said housing when the drive circuit and hence the stepper motor is energized by a battery.Type: ApplicationFiled: July 3, 2001Publication date: January 9, 2003Inventor: Frank J. Prineppi
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Publication number: 20030006657Abstract: Disclosed is a terminal connection structure of a resolver stator coil in which a part of the end portion of the stator coil is left as a free end portion which is free with respect to the terminals, whereby external impact is absorbed, and rupture of the stator coil is prevented, thereby achieving an improvement in reliability. An end portion (30) of a stator coil (1) is wound around terminals (4) to form a winding connection portion (5), and a part of the end portion (3) is left as a free end portion (30) which is not integrally connected to the terminals (4) by soldering or fusing, whereby a spring function is obtained.Type: ApplicationFiled: June 26, 2002Publication date: January 9, 2003Applicant: TAMAGAWA SEIKI KABUSHIKI KAISHAInventor: Hisashi Mimura
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Publication number: 20030006658Abstract: An ultra-slim disk-spindle motor includes a cylindrical hub 250 of which both ends are opened, the hub having an inner protruding portion 251 formed along a central portion of an inner circumferential face of the hub and an outer protruding portion 252 formed along an upper side of the outer circumferential face of the hub, an upper ball bearing 242 and a lower ball bearing 241 being fixedly inserted above and below the inner protruding portion 251, a permanent magnet 260 bonded to a lower side of an outer circumferential face of the outer protruding portion 252 of the hub 250, a disk 270 mounted on an upper face of the outer protruding portion 252 of the hub 250 and a clamp 280 fixed with the hub using a bolt 281 and 282 in order to mount the disk 270.Type: ApplicationFiled: June 29, 2001Publication date: January 9, 2003Applicant: Gunhee JANGInventors: Gunhee Jang, Kyungsu Kim
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Publication number: 20030006659Abstract: A ball bearing fixed assembly in a direct current fan comprises a fan blade unit, a motor unit, and a fan base. The fan blade unit has an integral fan blade, a spindle at the lower central position thereof, a motor casing at an inner side of the fan blade, and a magnet bar that are attached to an inner side of the casing. The motor unit has an insulation frame, silicon steel sheets, a circuit board and coils. The silicon steel sheets horizontally surround the insulation frame, the circuit board is disposed below the insulation frame, and the coils are perpendicular to the silicon steel sheets and mounted within the insulating frame. A ball bearing is installed in a central position within the fan base and fits with the spindle. An oil chamber is disposed below the ball bearing with a first receiving room and a second receiving room. The second receiving room is disposed above the first receiving room.Type: ApplicationFiled: November 14, 2001Publication date: January 9, 2003Inventor: Chin Ching Yeh
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Publication number: 20030006660Abstract: In an electric motor with a stator (11) and a rotor (12) that is received rotatably via its rotor shaft (13) in rotor bearings (14, 15), and having an effective decoupling between the stator (11) and rotor bearings (14, 15) for reducing the emission of airborne and structure-borne sound, in order to attain a structurally simple, sturdy design with markedly little motor noise, the rotor bearings (14, 15) are fixed on a housing (10) surrounding and gripping the stator (11), while the decoupling is achieved by a spring-elastic suspension of the stator (11) from the housing (10), and to that end elastic decoupling elements (28) are disposed between the stator (11) and the housing (10) (FIG. 1).Type: ApplicationFiled: February 22, 2002Publication date: January 9, 2003Inventors: Wolfgang Kehrer, Wolfgang Frank
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Publication number: 20030006661Abstract: In a magnetic coupler, a pair of magnet rotors is slidably mounted on rods. Ferrous material on the conductor rotors attracts the permanent magnets in the magnet rotors. Under static or relative static conditions, the attractive force urges the magnet rotors toward the conductor rotors to create a minimum, operational air gap therebetween. When there is a significant relative rotational velocity between the magnet rotors and the conductor rotors, a repulsion force urges the rotors apart. During start-up, latch arms retain the magnet rotors apart from the conductor rotors by a larger, soft-start air gap. During operation, centrifugal force moves the latch arms out of their active position. If the rotational speed of the load shaft decreases rapidly during operation, the magnet rotors move apart from the conductor rotors by a still larger, fully disengaged air gap.Type: ApplicationFiled: July 3, 2001Publication date: January 9, 2003Applicant: MagnaDrive CorporationInventors: Richard Killen, Bruce D. Densmore, John L. Brockman, Karl J. Lamb, Toby Merrill
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Publication number: 20030006662Abstract: A device for mechanically securing and controlling the potential of winding cables (10) outer semiconducting layers (14) in the end windings region of the stator (2) of a rotating high-voltage electric machine comprises spacers (12) of resilient, electrically conducting material arranged between the semi-conducting outer layers (14) of adjacent winding cables (10, 10′, 10″) Positioning devices (16, 18) are arranged to secure the cables in relation to each other with the outer layers in contact with the spacers.Type: ApplicationFiled: June 18, 1999Publication date: January 9, 2003Inventors: PETER CARSTENSEN, MATS LEIJON, JAN-ANDERS NYGREN, LARS GERTMAR
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Publication number: 20030006663Abstract: The present invention separates stator teeth from stator portions into unit bodies to enhance effective operational efficiency of an electromotor or a generator. The unit bodies are respectively sleeved in insulating wire groove seats having annularly closed stable devices so that the stator coils can be disposed in the insulating wire groove seats with a higher occupied ratio of volume. A left and a right ends of teeth back face end portions of the insulating wire groove seats form two sideward-standing face portions, which correspond to and join each other to form an annularly closed stable joint. Thereby, swing oscillation generated by armature reaction of the stator teeth with rotor magnets can be eliminated, and the structural strength of the assembled stator portions can be enhanced. Therefore, the armature reaction between the stator portions and the rotor magnets can keep stable operation.Type: ApplicationFiled: July 6, 2001Publication date: January 9, 2003Inventor: Chun-Pu Hsu
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Publication number: 20030006664Abstract: A stator in the prior art is secured in a sleeve by a shrink fit.Type: ApplicationFiled: January 10, 2002Publication date: January 9, 2003Inventors: Wolf Joachim Eggers, Johannes Pfetzer
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Publication number: 20030006665Abstract: Structure of driving unit in a drum type washing machine including a tub mounted inside of a cabinet, a drum mounted inside of the tub, a shaft connected to the drum mounted inside of the tub for transmission of a driving force from a motor to the drum, a front bearing and a rear bearing mounted on an outer circumference of the shaft at opposite end portions thereof respectively, a bearing housing built in a central portion of a rear wall of the tub for supporting the front bearing, a rotor composing the motor together with the rotor, and coupled to the rear end portion of the shaft, a stator fixed to the tub rear wall inward of the rotor to compose the motor together with the rotor, a connector serration coupled to the outer circumference of the shaft in front of the rear bearing and fixed to the rotor, for transmission of a rotating power from the rotor to the shaft, and a bearing bracket fixed to the rear wall of the tub to cover an outside of the rotor and support the rear bearing, thereby reducing noise,Type: ApplicationFiled: August 30, 2002Publication date: January 9, 2003Applicant: LG Electronics Inc.Inventors: Jae Kyum Kim, Ho Cheol Kwon, Jong A. Park, Kang Mo Choi
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Publication number: 20030006666Abstract: A resolver stator includes a stator coil which is fixed to magnetic poles of the resolver stator by a resin softer than an epoxy, whereby disconnection in the stator coil is avoided when the resolver stator is used in an environment in which temperature varies in a wide range. Wire ends of the stator coil are each wound around a terminal and fixed thereto such that one part of the wound wire end is left free from the terminal, whereby disconnection of wires is avoided.Type: ApplicationFiled: December 5, 2001Publication date: January 9, 2003Applicant: TAMAGAWA SEIKI KABUSHIKI KAISHAInventor: Hisashi Mimura
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Publication number: 20030006667Abstract: An improved shape for a tooth of a rotor assembly in an AC generator is generally trapezoidal in shape and includes a base, a tip, and leading and trailing edges. The leading edge comprises a first portion, and a second portion. The first portion extends from the tip toward the base, and the second portion extends from the first portion toward the base. The second portion slopes at a first rate that would cover about one slot pitch were it allowed to continue all the way up to the tip. However, the first slope continues only to a transition point. The first portion is generally parallel to the trailing edge of an adjacent, magnetically opposing rotor tooth. The modified tooth presents a wider tooth cross-section.Type: ApplicationFiled: July 6, 2001Publication date: January 9, 2003Inventors: Duane Joseph Buening, Michael L. Hull
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Publication number: 20030006668Abstract: An activator has a base on which is mounted an elastically deformable micromechanical element that has a section that is free to be displaced toward the base. An absorber of radioactively emitted particles is formed on the base or the displaceable section of the deformable element and a source is formed on the other of the displaceable section or the base facing the absorber across a small gap. The radioactive source emits charged particles such as electrons, resulting in a buildup of charge on the absorber, drawing the absorber and source together and storing mechanical energy as the deformable element is bent. When the force between the absorber and the source is sufficient to bring the absorber into effective electrical contact with the source, discharge of the charge between the source and absorber allows the deformable element to spring back, releasing the mechanical energy stored in the element.Type: ApplicationFiled: April 9, 2001Publication date: January 9, 2003Inventors: Amit Lal, Hui Li, James P. Blanchard, Douglass L. Henderson
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Publication number: 20030006669Abstract: The invention describes rolled electroactive polymer devices. The invention also describes employment of these devices in a wide array of applications and methods for their fabrication. A rolled electroactive polymer device converts between electrical and mechanical energy; and includes a rolled electroactive polymer and at least two electrodes to provide the mechanical/electrical energy conversion. Prestrain is typically applied to the polymer. In one embodiment, a rolled electroactive polymer device employs a mechanism, such as a spring, that provides a force to prestrain the polymer. Since prestrain improves mechanical/electrical energy conversion for many electroactive polymers, the mechanism thus improves performance of the rolled electroactive polymer device.Type: ApplicationFiled: May 21, 2002Publication date: January 9, 2003Applicant: SRI InternationalInventors: Qibing Pei, Ronald E. Pelrine, Roy D. Kornbluh, Scott E. Stanford, Neville A. Bonwit, Jonathan R. Heim
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Publication number: 20030006670Abstract: A balanced microdevice that includes a substrate and at least one comb drive assembly having first and second comb drive members. The first comb drive member is mounted on the substrate and the second comb drive member overlies the substrate. At least one spring member is provided that has a first end portion coupled to the substrate and a second end portion coupled to the second comb drive member. The first comb drive member has a plurality of spaced-apart first comb drive fingers and the second comb drive member has a plurality of spaced-apart second comb drive fingers. The second comb drive member is movable between a first position in which the first and second comb drive fingers are not substantially fully interdigitated and a second position in which the first and second comb drive fingers are substantially fully interdigitated.Type: ApplicationFiled: September 11, 2002Publication date: January 9, 2003Inventors: John H. Jerman, John D. Grade
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Publication number: 20030006671Abstract: A gyroscope that may include various sources of error, with those sources of error each being dependent upon a different parameter, is associated with a simulation or “model” of the gyroscope which is typically a computer simulation. The computer simulation is provided with errors which can be adjusted to be identical with the errors present in the real gyroscope. An arrangement is provided to adjust the errors in the model of the gyroscope to be identical with the errors in the real gyroscope, that arrangement including Kalman filters which receive signals generated by subtracting the outputs of the real gyroscope and the model gyroscope, whilst simultaneously varying the various inputs to the real gyroscope. The Kalman filters also generate a signal which is an estimate of the angular rotation being sensed by the real gyroscope.Type: ApplicationFiled: July 3, 2002Publication date: January 9, 2003Inventors: Nils Hiedenstierna, Gert Andersson, Per Svensson
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Publication number: 20030006672Abstract: The present invention provides a robust FBAR device and a simplified method of fabricating a FBAR device. FBAR device according to the present invention includes a membrane supporting layer between a substrate and a membrane layer, surrounding an air gap region. The membrane supporting layer supports the membrane layer to obtain a robust structure. Firstly, the method forms a sacrificial layer on the substrate, then a photoresist pattern is formed on air gap forming region at a top surface of the sacrificial layer, the method removes the sacrificial layer to form a sacrificial pattern by using the photoresist pattern as an etching mask. An insulating material then deposits on the substrate, the photoresist pattern is remove, and a membrane layer is formed on a top surface of the sacrificial layer and the insulating material layer. Finally, the method removes the sacrificial pattern to form an air gap.Type: ApplicationFiled: April 19, 2001Publication date: January 9, 2003Inventors: Kuk Hyun Sunwoo, Hyoung Jun Kim, Jae Wook Jang
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Publication number: 20030006673Abstract: A miniature piezoelectric transducer element is provided, comprising: (a) a cell element having a cavity; (b) a flexible piezoelectric layer attached to the cell member, the piezoelectric layer having an external surface and an internal surface, the piezoelectric layer featuring such dimensions so as to enable fluctuations thereof at its resonance frequency upon impinging of an external acoustic wave; and (c) a first electrode attached to the external surface and a second electrode attached to the internal surface of the piezoelectric layer. At least one of the electrodes may be specifically shaped so as to provide a maximal electrical output, wherein the electrical output may be current, voltage or power. A preferred shape of the electrodes includes two cores interconnected by a connecting member. The transducer element may function as a transmitter.Type: ApplicationFiled: September 6, 2002Publication date: January 9, 2003Inventors: Yarlv Porat, Yoseph Tsaliah, Eyal Doron
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Publication number: 20030006674Abstract: A thin-disc piezoelectric actuating ultrasonic motor is disclosed. A stator is commercial available buzz piece consisted of piezoelectric ceramic membrane bonded on a metal plate. It is a concentric disk and posses either electric or mechanical flexural characteristics. Ultrasonic motor driving mechanism is a mechanical vibration by extension and shrinkage of a metal back plate due to the reverse piezoelectric effect, which supplies a single phase AC power. There are two transferring directions in the mechanical vibrating wave. One is a radial component, and another is a transverse component. This, the outer edge of the buzz piece forms various of traveling waves in different directions. These traveling waves may be used to provide a torque so as to drive the rotor to rotate.Type: ApplicationFiled: June 26, 2001Publication date: January 9, 2003Inventors: Minsun Ouyang, Fuh-Liang Wen
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Publication number: 20030006675Abstract: In an adjusting device for displacing individual elements (2) of optical systems or of measuring systems in which the element to be displaced is movable on a base (1) along a predetermined direction (x) by means of a piezoelectric actuator arrangement (21, 22) which is supported by the element (2) and which is constructed and controllable in such a way that it exerts shock pulses on the element (2) in order to carry out a stepwise movement of the element (2) on the base (1), the element (2) is arranged in a body (1; 27) which has an open or closed hollow cross section and is supported in a frictional engagement on this body, at least at one location, with the intermediary of a pretensioned spring device (8, 8′).Type: ApplicationFiled: February 13, 2002Publication date: January 9, 2003Inventors: Karlheinz Bartzke, Stefan Mack, Matthias Burkhardt, Thomas Hartmann, Reinhard Steiner, Peter Dittrich, Karl-Heinz Klopfleisch
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Publication number: 20030006676Abstract: A closed loop motion control system employing at least one relaxor actuator which controls the position of a moving member having mass by controlling an electric field applied to the relaxor actuator. The actuator comprises a body of relaxor material dimensionally variable under the influence of the electric field applied in the form of a voltage to electrodes on at least two surfaces of the actuator. The voltage is applied in response to a feedback signal produced by at least one feedback sensor, which may be a displacement sensor or some other type of sensor. Thus, by constantly monitoring the displacement or other variable of the actuator device, the position of the moving member may be precisely controlled.Type: ApplicationFiled: May 29, 2002Publication date: January 9, 2003Inventors: Stuart T. Smith, Shane C. Woody, Richard M. Seugling
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Publication number: 20030006677Abstract: A piezoelectric ceramic comprising lead titanate as a primary component, wherein the primary component contains a titanium oxide crystalline phase. Methods for producing the ceramic, and piezoelectric oscillators making use of the ceramic are also disclosed.Type: ApplicationFiled: July 29, 2002Publication date: January 9, 2003Applicant: Murata Manufacturing Co., Ltd.Inventors: Akihito Okuda, Akinobu Takamura, Masataka Kida, Yoshiaki Kohno
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Publication number: 20030006678Abstract: Disclosed is a high-sensitivity flexible ceramic sensor for detecting mechanical shocks and vibrations, which comprises a metal foil of a specified thickness as a substrate, a single-crystalline thin film of a piezoelectric ceramic material such as aluminum nitride and zinc oxide having a specified thickness formed on the substrate, a metallic electrode formed on the thin ceramic film and an external circuit connecting the metal foil and the electrode with insertion of an electric meter for measuring the piezoelectric voltage changes induced in the ceramic thin film.Type: ApplicationFiled: September 9, 2002Publication date: January 9, 2003Inventors: Morito Akiyama, Naohiro Ueno, Kiichi Ikeda, Kazuhiro Nonaka, Hiroshi Tateyama
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Publication number: 20030006679Abstract: The width-extensional mode piezoelectric crystal resonator comprising vibrational portion, connecting portions and supporting portion is shown with new cut angle and electrode construction, which provides a high frequency and a high electro-mechanical transformation, even when said resonator is miniaturized. As a result of which the miniature crystal resonator may be provided with a small series resistance and a high quality factor Q. This is accomplished by cut angle, electrode construction and a large piezoelectric constant of the width-extensional mode piezoelectric crystal resonator. In addition, an improvement of the frequency temperature behavior for the crystal resonator is accomplished by connecting a plurality of resonators integratedly through frame or supporting frame. Crystal resonators with different turn over temperature points are electrically connected in parallel.Type: ApplicationFiled: May 22, 2002Publication date: January 9, 2003Inventor: Hirofumi Kawashima
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Publication number: 20030006680Abstract: A fire shield for mounting over air ventilation holes on the bottom of a computer chassis. The shield includes an offset for holding a fire-impenetrable surface away from the air ventilation holes. The surface blocks a path that passes through the ventilation holes and extends orthogonally outward from the computer chassis, thus preventing flaming particles that fall through the air holes from passing beyond the shield. The shield establishes an air cavity that is in fluid communication with the air holes and with ambient air for cooling purposes. It may be constructed of sheet metal with first and second folded portions serving to create the offset. Hooks along the first elongate fold engage the air holes. A clearance hole on the second elongate fold receives a fastener. The air cavity may vent to ambient air on either end of the shield between the two folds.Type: ApplicationFiled: July 9, 2001Publication date: January 9, 2003Inventor: Ronald P. Dean
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Publication number: 20030006681Abstract: A vertically stabilized shelf bracket assembly having at least two support strips on which a plurality of shelf brackets are mounted. The shelving is stabilized in several ways. First, the brackets are provided with a shelf engaging recess. The recess is either designed to provide a tight fit for the shelf, or the recess is provided with a shim for tightening the fit. Second, the brackets are provided with a vertical member which engages the shelves. Preferably, the recess and the vertical member will engage the shelf at opposite ends of the shelf, securing the shelf to the bracket. When the shelf is attached to multiple brackets, the shelf will be prevented from pivoting on the bracket. The shelves can be further stabilized by securing the brackets against vertical displacement. This can be accomplished by securing the shelf brackets to the support strip with a locking pin. With the locking pin in place, the shelf bracket cannot be moved upward.Type: ApplicationFiled: March 5, 2001Publication date: January 9, 2003Inventors: Warren L. Herron, Warren L. Herron
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Publication number: 20030006682Abstract: The present invention relates to a precision drawer slide, employing two or more members, wherein, one member is fastened to a cabinet wall, or carcass, and the other member is fastened to a drawer. The member fastened to the cabinet wall comprises a profile that has a “hat” section appearance that generates a surprising amount of rigidity when installed in desk and file cabinets of various kinds. The drawer and cabinet member of the present invention are also strategically foreshortened and rear-shortened respectively. Other variations or embodiments of the present invention include the usage of a novel quick disconnect system for the easy installation and removal of a drawer from the drawer slide assembly, as well as the inclusion of a roller bearing component for generation of a progression movement in the drawer slide itself.Type: ApplicationFiled: May 7, 2001Publication date: January 9, 2003Inventor: Keith A. Hoffman
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Publication number: 20030006683Abstract: A shelf for a refrigerator compartment includes a tempered glass panel to front and rear edges of which are injection molded or adhesively bonded front and rear border members. Side edges of the tempered glass panel are thereby exposed enhancing conductivity within the refrigerator compartment.Type: ApplicationFiled: June 28, 2001Publication date: January 9, 2003Inventor: Craig Bienick
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Publication number: 20030006684Abstract: 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.Type: ApplicationFiled: March 27, 2002Publication date: January 9, 2003Inventors: Shinichi Kawate, Takeo Tsukamoto
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Publication number: 20030006685Abstract: The present invention relates to a color cathode ray tube provided with a pressed-type shadow mask. As material for constituting the shadow mask 6, a single plate body made of a composite gradient alloy plate consisting of three layers 6A, 6B, 6C or more in which an alloy element has the concentration gradient which is continuously changed from one surface to the other surface is used. The present invention can realize a pressed mask having a large radius of curvature by self-correcting the thermal deformation such as a doming or the like.Type: ApplicationFiled: June 5, 2002Publication date: January 9, 2003Inventors: Noriharu Matsudate, Nobuhiko Hosotani
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Publication number: 20030006686Abstract: A cathode ray tube includes a tension mask attached to a rectangular mask frame assembly that has two long sides paralleling a central major axis thereof and two short sides paralleling a central minor axis thereof. The two long sides are disposed at generally a right angle with respect to the two short sides with each of the sides connected to form a continuous generally planar support frame having an inner and outer peripheral surface. The support frame is formed of a material having a first coefficient of thermal expansion and includes a detensioning member formed of a second coefficient of thermal expansion on the peripheral surface of at least one side of the frame to facilitate detensioning of the mask.Type: ApplicationFiled: July 6, 2001Publication date: January 9, 2003Inventor: Alan Weir Bucher
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Publication number: 20030006687Abstract: A cathode ray tube according to the present invention include a cold cathode electron gun, the cold cathode electron gun including a cold cathode array for emitting electrons through field emission, a gate electrode for controlling the field emission, a first selective electrode provided around the cold cathode array and the gate electrode, and a second selective electrode opposing the first selective electrode, and the second selective electrode is adapted to have a lower potential than the gate electrode and the first selective electrode. In accordance with this configuration, the divergence of electron beams emitted from any positions in the cold cathode array can be converged uniformly upon removing electron beams emitted at a great emission angle. This allows the electron beams thereafter to be made narrower by an electrostatic lens. As a result, the present invention can provide a cathode ray tube capable of forming a high-resolution image.Type: ApplicationFiled: June 27, 2002Publication date: January 9, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Takashi Itoh, Masahide Yamauchi, Koji Fujii, Keisuke Koga, Toru Kawase
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Publication number: 20030006688Abstract: A color cathode ray tube includes an electron gun having an electron beam generating portion arrayed in a horizontal direction for generating three electron beams, and a main lens for focusing the three electron beams upon a fluorescent face, and a deflection yoke for scanning the three electron beams. The main lens has electrodes with three electron beams passages including a central electron beam passage and side electron beam passages. The main lens includes an accelerating electrode supplied with an accelerating voltage, a first focusing electrode supplied with a first focusing voltage, and a second focusing electrode supplied with a second focusing voltage. An axially asymmetric electron lens is formed between the first focusing electrode and the second focusing electrode.Type: ApplicationFiled: September 6, 2002Publication date: January 9, 2003Inventors: Shoji Shirai, Kenichi Watanabe, Masayoshi Furuyama
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Publication number: 20030006689Abstract: A cathode, a control electrode, and an accelerating electrode are formed in this order, and electron beam passing holes for passing an electron beam emitted from the cathode are provided in the control electrode and the accelerating electrode, respectively. A concave portion is formed on a surface of the control electrode on a side of the accelerating electrode, and a convex portion is formed on a surface of the accelerating electrode on a side of the control electrode. This allows an actual gap between the control electrode and the accelerating electrode on a periphery of the electron beam passing holes to be reduced, and thus a voltage to be applied to the accelerating electrode can be reduced. Further, while the voltage of the accelerating electrode is suppressed, the electron beam passing hole of the control electrode can be reduced in diameter, and thus a beam spot formed on a phosphor screen can be reduced in diameter.Type: ApplicationFiled: July 2, 2002Publication date: January 9, 2003Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kazunori Ohta, Masahide Yamauchi
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Publication number: 20030006690Abstract: An electron gun for a CRT includes a pair of bead glasses separated from and parallel to each other, supporting electrodes of the electron gun. An electrode has electron beam passing holes and at least one electrode support embedded in each bead glass. The electrode support includes at least two embedding protrusions embedded in the bead glass. One of the protrusions is longer than the other protrusion. The structure of the electrode support is improved so cracks in a bead glass during a beading process do not occur and twisting in a gap between the bead glass and an electrode support is minimized. There is no gap between the bead glass and the electrode, so leakage current does not flow between the electrodes, improving the lifetime of electrical features of the electron gun.Type: ApplicationFiled: July 3, 2002Publication date: January 9, 2003Applicant: Samsung SDI Co., Ltd.Inventor: Byoung-kon Roh
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Publication number: 20030006691Abstract: A screen for a cathode ray tube and a method for manufacturing the screen are provided. The screen for a cathode ray tube includes: a phosphor film formed on the inner front surface of a panel where at least one stud pin is mounted, the phosphor film including phosphor layers; a metal layer formed on the phosphor film, which reflects light emitted from the phosphor layers toward the front side of the panel; and a gas exhaust member extended from the metal layer, which provides a path for gas to exhaust, the gas being generated as a filming layer interposed between the phosphor film and the metal layer to make the thickness of the phosphor film uniform is decomposed. To manufacture this screen, a guide block having a mask pattern, which corresponds to a pattern of a metal layer and gas exhaust member to be formed as a single body inside the panel on which the phosphor film and a filming layer have been formed, is fitted into the panel.Type: ApplicationFiled: June 17, 2002Publication date: January 9, 2003Inventor: Hwan-Chul Rho
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Publication number: 20030006692Abstract: A CRT display including a display panel having a substantially flat outside surface, and an inside surface with a substantially fixed curvature includes a film coating with a non-uniform transmissivity. The film coating's transmissivity is varied, as a function of position, to compensate for variations in transmissivity exhibited by the display panel, thus resulting in substantially uniform image brightness across the surface of the CRT.Type: ApplicationFiled: April 19, 2002Publication date: January 9, 2003Applicant: LG Electronics Inc.Inventors: Cheou Su Kang, Sung Ho Park
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Publication number: 20030006693Abstract: An electro-optical display comprisig two sets of fibers, one of them including conductive wires, forming a flexible carrying network with cells, a layer of electro-optically active (EOA) substance filling the cells; a first transparent conductive layer covering one side of the carrying network in electric contact with the conductive wires; a second conductive layer covering the other side of the network and insulated from the conductive wires, thereby forming an electrooptically active zone between the fist conductive layer and the second conductive layer. The EOA substance and the second layer may be laid in spots forming display elements and pictures. The first conductive layer may be laid in separated strips parallel to the conductive wires while the second conductive layer may be laid in transverse strips, thereby forming a matrix of pixels defined between the overlapping strips.Type: ApplicationFiled: July 5, 2001Publication date: January 9, 2003Applicant: VISSON IP LLC INCInventor: Rafael Topelberg
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Publication number: 20030006694Abstract: An electric lamp has an envelope with an inner surface and two electrodes located at each end of the envelope. The electrodes transfer electric power to generate ultraviolet radiation in the envelope which is filled with mercury and a charge sustaining gas. The inner surface of the envelope is pre-coated with an aluminum oxide layer to reflect ultraviolet radiation back into the envelope. A phosphor layer is formed over the aluminum oxide to convert the ultraviolet radiation to visible light. The phosphor layer is a mixture of four phosphors, namely, blue-luminescing Blue Halophosphate (BH), red-luminescing Yittrium Oxide (YOX), 2900K-luminescing Calcium Halophosphate, also referred to as Warm White Halophosphate (WW), and green-luminescing Zinc Silicate (ZS).Type: ApplicationFiled: June 26, 2001Publication date: January 9, 2003Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventor: Brett A. Carter
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Publication number: 20030006695Abstract: A mercury vapor discharge lamp is provided having either a yttria-dispersed alumina barrier layer, or a yttria-dispersed phosphor layer with no barrier layer. The yttria-dispersed layer is preferably coated directly on the inner surface of the glass envelope of a fluorescent lamp, and substantially reduces mercury depletion via reaction with the glass envelope. Preferably, the yttria-dispersed layer also has a fine coating of yttria deposited over the surfaces of the coating particles, and over the inner surface of the glass envelope. A method of preparing a coating layer having such a yttria coating, and yttria particles uniformly dispersed therethrough, is also provided.Type: ApplicationFiled: July 5, 2001Publication date: January 9, 2003Inventor: Jon B. Jansma
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Publication number: 20030006696Abstract: A transfer film comprising a base film (11), a parting-agent layer (12), a protective film (13), and a metal film (14), the latter three being formed on the base film (11) in order, wherein the protective film (13) contains a softening agent such as a phosphate, an aliphatic monobasic acid ester, an aliphatic dibasic acid ester, or a dihydric alcohol ester. By using such a transfer film, a metal back layer is formed. Since the transfer layer of the transfer film has a surface resistivity of as high as 102-108 &OHgr;/, the surface resistivity of the formed metal back layer is high, and discharge is suppressed.Type: ApplicationFiled: July 26, 2002Publication date: January 9, 2003Inventors: Takeo Ito, Hajime Tanaka, Tomoko Nakazawa, Taichiro Nakayama, Takaaki Shinohara, Yoichiro Nakayama, Kazuo Sakai
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Publication number: 20030006697Abstract: An array of OLEDs is provided. The array includes a first electrode that has a plurality of physically separate pieces that are electrically connected by a bus line. The array further includes a second electrode, and an organic layer disposed between the first and second electrodes. The organic layer is electrically connected to the second electrode, and to at least one of the physically separate pieces of the first electrode. The embodiment may be used to fabricate an array of OLEDs on a flexible substrate.Type: ApplicationFiled: July 9, 2001Publication date: January 9, 2003Inventor: Michael S. Weaver
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Publication number: 20030006698Abstract: An organic EL display comprises a first translucent substrate 1; an organic EL element 2, provided on top of the first translucent substrate 1, and formed by layering an anode, a photoemissive layer formed from a plurality of organic substances, and a cathode; and a second translucent substrate 31 which seals the organic EL element 2. The second translucent substrate 31 adopts a configuration comprising a depression 30 at the site facing the organic EL element 2.Type: ApplicationFiled: January 23, 2002Publication date: January 9, 2003Inventor: Yohei Mayuzumi
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Publication number: 20030006699Abstract: An easier method is provided to manufacture a light emitting device that can display a full-color image using a polymeric organic compound. In the present invention, some of polymeric organic compounds are dissolved in a protic solvent while the others are dissolved in an aprotic solvent and the obtained solutions are applied to form organic compound films having laminate structures. A conductive film to serve as an etching stopper is formed on the organic compound films, so that portions of the organic compound films that do not overlap the conductive film are etched away. By using wet etching and dry etching in combination, different organic compound films each composed of a plurality of polymeric organic compounds can be formed in different light emitting elements on the same substrate.Type: ApplicationFiled: June 24, 2002Publication date: January 9, 2003Applicant: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kiyofumi Ogino, Noriko Shibata
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Publication number: 20030006700Abstract: The difference of luminance between a front surface side and a rear surface side as viewed from the front surface side is reduced in a multi-layered EL lamp. An EL lamp includes a first laminate formed by serially laminating a first transparent electrode, a first luminescent layer and a first insulating layer, a second laminate formed by serially laminating a second transparent electrode, a second luminescent layer and a second insulating layer on the first laminate, and a rear electrode formed on the second laminate, wherein a dielectric constant between the first and second transparent electrodes is set to a value smaller than a dielectric constant between the second transparent electrode and the rear electrode.Type: ApplicationFiled: August 9, 2002Publication date: January 9, 2003Inventor: Koji Yoneda
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Publication number: 20030006701Abstract: An EL sheet is used as a back light of an operating section of various electronic apparatuses. The EL sheet generates a stable click feel and is easily processed. A switch employing the EL sheet is also provided. An EL element layer is not formed at a bent section or its vicinity around a root section of a diaphragm. And only conductive patterns, which are coupled to a light-transmissible electrode layer and a back electrode layer respectively, are formed there. Instead of the conductive patterns, insulating film can be exposed there.Type: ApplicationFiled: March 8, 2002Publication date: January 9, 2003Inventors: Tetsuro Hanahara, Shinji Okuma, Takayuki Ishikawa, Koichi Santo
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Publication number: 20030006702Abstract: A light emitting device includes a light source that emits first light in response to an electrical signal, and a fluorescent layer positioned over the light source. The fluorescent layer includes a first fluorescent material which radiates second light and a second fluorescent material which radiates third light. In one embodiment, the second fluorescent material contains europium activated calcium sulfide. In another embodiment, the second fluorescent material contains europium activated nitrido-silicate. In some embodiments, the device includes a light propagation medium which transmits the first, second, and third light as composite output.Type: ApplicationFiled: February 25, 2002Publication date: January 9, 2003Applicant: Lumileds Lighting, U.S., LLCInventors: Regina B. Mueller-Mach, Gerd O. Mueller, Thomas Juestel, Peter Schmidt
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Publication number: 20030006703Abstract: A fluorescent luminous tube is provided that has a getter mirror film formed in an arbitrary shape by illuminating a laser beam onto a getter. In order to form the getter film 32, the rectangular ring-less getter 31 mounted on the anode substrate 11 is irradiated with the laser beam L from the outside of the front substrate 12 and thus is evaporated. In this process, when the illumination spot of the laser beam L is moved along the scanning line 33, the rectangular getter mirror film 32 is formed around the scanning line 33. The burnt region 34, which has the same shape and size as those of the scanning line 33, is formed using the laser beam L.Type: ApplicationFiled: July 8, 2002Publication date: January 9, 2003Applicant: Futaba CorporationInventors: Yoshihisa Yonezawa, Yukio Ogawa, Shogo Ishige
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Publication number: 20030006704Abstract: A glass crack prevention film-like layer having a glass crack prevention layer exhibiting a dynamic elastic modulus of not larger than 6×106 Pa at 20° C., and an anti-reflection film laminated on one surface of the glass crack prevention layer, while the other surface of the glass crack prevention layer is provided as an adhesive face. A plasma display device having a plasma display panel, and a glass crack prevention film-like layer defined above and directly attached to a visual side of the plasma display panel through the adhesive face of the glass crack prevention layer contained in the glass crack prevention film-like layer.Type: ApplicationFiled: May 15, 2002Publication date: January 9, 2003Inventors: Yuuichi Morimoto, Kazuhiko Miyauchi, Yoshihiro Hieda, Yukiko Azumi, Toshitaka Nakamura