Patents Represented by Attorney, Agent or Law Firm Marian Underweiser
  • Patent number: 6259490
    Abstract: The present invention provides a liquid crystal display device having a position detecting function with a high sensitivity and a high resolution. The position detecting function comprises a position detecting electrically conductive film on a polarizer or a color filter glass substrate of the liquid crystal display device. The present invention also can suppress the undesired generation of an air gap between the polarizer and color filter glass substrate by using a polarizer that is smaller in size relative to the position detecting electrically conductive film.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: July 10, 2001
    Assignee: International Business Machines Corporation
    Inventors: Evan George Colgan, James Lewis Levine, Mikio Kurihara, Satoshi Karube, Kazumi Sakai, Eisuke Kanzaki, Hiroshi Mishima
  • Patent number: 6254662
    Abstract: A method and structure for forming magnetic alloy nanoparticles includes forming a metal salt solution with a reducing agent and stabilizing ligands, introducing an organometallic compound into the metal salt solution to form a mixture, heating the mixture to a temperature between 260° and 300° C., and adding a flocculent to cause the magnetic alloy nanoparticles to precipitate out of the mixture without permanent agglomeration. The deposition of the alkane dispersion of FePt alloy particles, followed by the annealing results in the formation of a shiny FePt nanocrystalline thin film with coercivity ranging from 500 Oe to 6500 Oe.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: July 3, 2001
    Assignee: International Business Machines Corporation
    Inventors: Christopher Bruce Murray, Shouheng Sun, Dieter K. Weller
  • Patent number: 6248626
    Abstract: A semiconductor memory and a method of producing the memory, includes a transistor including a first gate having an oxide, and a channel, and a back-plane including a second gate and an oxide thereover, the second gate formed opposite to the channel of the transistor, the second gate including a floating gate, wherein a thickness of the oxide of the back-plane is separately scalable from an oxide of the first gate of the transistor.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: June 19, 2001
    Assignee: International Business Machines Corporation
    Inventors: Arvind Kumar, Sandip Tiwari
  • Patent number: 6242770
    Abstract: A magneto-resistive memory cell and a method of forming the memory cell, includes a substrate, a single crystalline semiconductor diode formed in the substrate; and a first thin film conductor recessed in the substrate, and a second thin film conductor form above a magnetic tunnel junction formed on the diode. The diode and first thin film conductor share a non-planar common surface, such that the metal tunnel junction is a predetermined distance from the thin film conductor.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: June 5, 2001
    Inventors: Gary Bela Bronner, Stephen McConnell Gates, Roy Edwin Scheuerlein
  • Patent number: 6236060
    Abstract: A light emitting device is disclosed comprising a bottom layer of electrically conductive material. A block of electrically insulating material is disposed on the bottom layer. At least a portion of the block is optically transparent. A top layer of electrically conductive material is disposed on the block. A plurality of discrete nano-crystals of a material selected from the group consisting of Group IV, Group III-V, and Group II-VI is disposed within the block, and are thereby electrically insulated from the top and bottom layers. Also provided are bottom and top electrodes connected to the bottom and top layers, respectively, for applying a voltage therebetween.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: May 22, 2001
    Assignee: International Business Machines Corporation
    Inventors: Kevin Kok Chan, Sandip Tiwari
  • Patent number: 6236164
    Abstract: A vacuum electron device comprises an evacuated envelope containing a cathode for supplying electrons to form an electron beam, an anode spaced from the cathode for receiving the electron beam, and a sensor electrode located between the cathode and the anode.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: May 22, 2001
    Assignee: International Business Machines Corporation
    Inventors: John Beeteson, Andrew Ramsay Knox
  • Patent number: 6223196
    Abstract: The present invention provides for the sharing of a MAC unit included in a sub-processor by the sub-processor and a host processor, so that the period of time for the operation of the host processor is reduced, and the overall performance of the integrated dual processor module is enhanced.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: April 24, 2001
    Assignee: International Business Machines Corporation
    Inventors: Tetsuo Hattori, Yasuhiro Matsumoto
  • Patent number: 6219183
    Abstract: A rear projection display is disclosed having a projection device, a screen, and a screen moving device. The projection devise projects an image, the screen is provided for displaying the image, and the screen moving device is used to move the screen in relation to the projection device. The screen moving device has a first frame attached to the screen that telescopically move over a second frame to extend and retract the screen. In the retracted position, the screen is flush with a display box that contains the projection device. As the screen moves away from the projection device, the image increases in size. The projection device includes a projection lens which may be a fixed focal length lens. Two folding mirrors of the projection device provide a folded projection path to reduce a dimension of the display. The screen moving device has an opening to move the screen toward the projection device without interfering therewith. A flexible light blocking material covers the opening.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: April 17, 2001
    Assignee: International Business Machines Corporation
    Inventor: Fuad Elias Doany
  • Patent number: 6219126
    Abstract: When fabricating a liquid crystal panel from a pair of substrates using the “one-drop fill” method to deposit liquid crystal material in a central portion of one substrate and then sealing the substrates together with a fillet of epoxy between the outer peripheral portions of the substrates, the uncured epoxy tends to contaminate the liquid crystal material and impair its function. Here, a relatively thick barrier fillet, as of silicone elastomer, is deposited in the form of a continuous closed circuit upon one of the substrates and is fully cured before depositing the liquid crystal material within that closed circuit. To seal the substrates together, they are brought together to a spacing determined by a relatively thin spacer fillet provided on one of the substrates and an epoxy fillet is deposited along the outer periphery of the substrates. The barrier fillet, preferably compressed, serves to prevent contamination of the liquid crystal material by any regions of uncured epoxy.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: April 17, 2001
    Assignee: International Business Machines Corporation
    Inventor: Robert Jacob Von Gutfeld
  • Patent number: 6214653
    Abstract: A method of forming a semiconductor substrate (and the resulting structure), includes etching a groove into a bulk silicon substrate, forming a dielectric in the groove and planarizing the silicon substrate to form at least one patterned dielectric island in the silicon substrate, forming an amorphous silicon (or SiGe) layer on exposed portions of the silicon substrate and the at least one dielectric island, crystallizing the amorphous silicon (or SiGe) layer using the exposed silicon substrate as a seed, the silicon substrate having direct contact with the formed silicon layer serving as a crystal growth seeding for the crystallization process, and converting the silicon (or SiGe) layer to crystallized silicon, and performing a shallow trench isolation (STI) process, to form oxide isolations between devices.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: April 10, 2001
    Assignee: International Business Machines Corporation
    Inventors: Howard H. Chen, Louis L. Hsu, Li-Kong Wang
  • Patent number: 6216228
    Abstract: Provided is a method and a system for automatically controlling display of video or image data in dependence on content classification information which is integrated within the data by means of invisible digital watermarking techniques. A controller decodes the watermarked content codes and then prevents displaying of certain material, by overlaying the display with blanking data, if the codes match certain stored codes which the controller has been set to respond to. The use of invisible digital watermark codes by a controller which operates in response to the watermark codes provides reliable control since the codes are more difficult for unauthorized persons to detect and remove than other embedded codes would be.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: April 10, 2001
    Assignee: International Business Machines Corporation
    Inventors: Sydney George Chapman, Julian Hamilton Jones
  • Patent number: 6208091
    Abstract: A vacuum electron device comprises an evacuated envelope containing a cathode for supplying electrons to form an electron beam, an anode spaced from the cathode for receiving the electron beam, and a sensor electrode located between the cathode and the anode.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: March 27, 2001
    Assignee: International Business Machines Corporation
    Inventors: John Beeteson, Andrew Ramsay Knox
  • Patent number: 6182278
    Abstract: The present invention is directed to making a variety of programming operations, which a programmer desires, possible by using a program component. More specifically, an apparent function of program component 131 is extended by component-information editor 101 which updates the information of component-information storage 110 that holds the information about the property and method of the program component. The component information is utilized both when an application program is developed and when the application program is executed. When a program is developed, the component information is utilized by property editor 103 and code editor 107. Therefore, users can utilize the component information for generating a programming code with a feeling as if the function of the program component were extended. Furthermore, there is no possibility that the user will be conscious of the difference between the existent function and the extended function of the program component.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: January 30, 2001
    Assignee: International Business Machines Corporation
    Inventors: Seiji Hamada, Yuichi Nakamura, Kazuya Tago
  • Patent number: 6181307
    Abstract: A photo-cathode electron source suitable for use in flat panel displays has an extractor grid means (104) maintained, in use, at a positive potential with respect to the photo-cathode surface. The extractor grid may be used as a carrier for unfired photoemissive material which forms the emission surface of the photo-cathode. The material is deposited on the surface (103) of the photo-cathode means (102) by means of evaporation from the extractor grid (104).
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: January 30, 2001
    Assignee: International Business Machines Corporation
    Inventors: John Stuart Beeteson, Andrew Ramsay Knox, Anthony Cyril Lowe
  • Patent number: 6177915
    Abstract: A display system for displaying a visual image in response to a video signal (10,34), comprising; a liquid crystal display panel (1) divided into a plurality of addressable, variable brightness sections (5); address circuit (6) for generating a section address corresponding to a section in response to a timing signal (11); driver circuit (7,8) for varying the brightness of the section in response to a brightness signal (14,15) derived from the video signal (10,34); characterised in that the display system further comprises: a memory (36) for storing a predetermined correction signal (35) corresponding to the section; and control circuit (31) coupled to the driver circuit (7,8) for varying the brightness signal (14,15) to reduce brightness non-uniformities in the displayed image in response to the video signal (34) and the correction signal (35) in combination.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: January 23, 2001
    Assignee: International Business Machines Corporation
    Inventors: John S. Beeteson, Christopher C. Pietrzak
  • Patent number: 6177972
    Abstract: An in-plane switched liquid crystal device IPS LCD which provides fast switching times is formed by filling an empty IPS LCD panel having an array of display elements with a mixture of nematic liquid crystal material and a mesogenic polymerizable material, such as monomers or polymer precursers and suitable photoinitiators, curing, or cross-linking agents, and then polymerizing the mixture such that a phase-separated network of cross-linked polymer strands is formed. The cross-linked network of polymer strands displays an average orientation whose average orientation substantially conforms with nematic orientation of the nematic liquid crystal material in its “field-off” state.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: January 23, 2001
    Assignee: International Business Machines Corporation
    Inventors: Glenn Allen Held, Shui-Chih Alan Lien, Do Yeung Yoon
  • Patent number: 6175910
    Abstract: The object of the present invention is to improve the execution of instructions using speculative operations in Superscalar or Very Long Instruction Word (VLIW) processors having multiple Arithmetic Logic Units (ALUs). More particularly, the invention relates to a system and method for using standard registers as shadow registers. The addresses of all standard registers are translated using a Relocation Table (RT) array. The addresses of registers used as shadow registers are translated another time using a Speculative Registers Table (SRT) array. At branch completion time, for the speculative operations that have previously been executed and correctly predicted, the Relocation Table (RT) is updated with the Speculative Registers Table (SRT) content. For the speculative operations that have previously been executed and incorrectly predicted, the Relocation Table (RT) remains unchanged.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: January 16, 2001
    Assignee: International Business Machines Corportion
    Inventors: Andre Pauporte, Francois Jacob