Patents by Inventor Johan A. Carlsson

Johan A. Carlsson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080198644
    Abstract: In a non-volatile electric memory system a memory unit (4) and a read/write unit (11) are provided as physically separate units. The memory unit (10) is based on a memory material (4) that can be set to at least two distinct physical states by applying an electric field across the memory material. Electrode means and/or contact means are either provided in the memory unit or in the read/write unit and contact means are at least always provided in the read/write unit. Electrodes and contacts are provided in a geometrical arrangement, which defines geometrically one or more memory cells in the memory layer. Contact means in the read/write unit are provided connectable to driving, sensing and control means located in the read/write unit or in an external device connected with the latter. Establishing a physical contact between the memory unit and the read/write unit closes an electrical circuit over the addressed memory cell such that read, write or erase operations can be effected.
    Type: Application
    Filed: June 8, 2006
    Publication date: August 21, 2008
    Applicant: Thin Film Electronics ASA
    Inventors: Per Broms, Christer Karlsson, Geirr I. Leistad, Per Hamberg, Staffan Bjorklid, Johan Carlsson, Goran Gustafsson, Hans Gude Gudesen
  • Publication number: 20080151609
    Abstract: In a method for obviating the effect of disturb voltages in a data storage apparatus employing passive matrix addressing, an application of electric potentials for an addressing operation is according to a voltage pulse protocol. The data storage cells of the apparatus are provided in two or more electrically separated segments each constituting non-overlapping physical address subspaces of the data storage apparatus physical address space. A number of data storage cells in each segment are preset to the same polarization by an active voltage pulse with a specific polarization. In a first addressing operation one or more data storage cells are read by applying an active pulse with the same polarization to each data storage cell and recording the output charge response. On basis thereof the output data in subsequent second addressing operation are copied onto preset data storage cells in another segment of the data storage apparatus, this segment being selected on the basis of its previous addressing history.
    Type: Application
    Filed: January 18, 2008
    Publication date: June 26, 2008
    Inventors: Per Hamberg, Christer Karlsson, Per-Erik Nordal, Nicklas Ojakangas, Johan Carlsson, Hans Gude Gudesen
  • Publication number: 20080121358
    Abstract: Methods for treating a fibrous suspension are disclosed, including cleaning the fibrous suspension in a screening room with a plurality of cleaning stages and including a final cleaning stage, and in which the cleaning takes place at a low fiber concentration, and recycling at least a partial flow of the accept from the last cleaning stage to a position before or in the screening room after it passes through a thickener, where the concentration of the accept is increased to a concentration which minimizes dilution of the concentration of the fiber suspension, to which the accept is supplied.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 29, 2008
    Applicant: Metso Paper Inc.
    Inventors: Johan Carlsson, Rickard Andersson
  • Patent number: 7352612
    Abstract: In a method for reducing detrimental phenomena related to disturb voltages in a data storage apparatus employing passive matrix addressing, particularly a memory device or a sensor device, an application of electric potentials conforming to an addressing operation is generally controlled in a time-coordinated manner according to a voltage pulse protocol. In an addressing operation a data storage cell is set to a first polarization state by means of a first active voltage pulse and then, dependent on the voltage pulse protocol, a second voltage pulse which may be a second active voltage pulse of opposite polarity to that of the first voltage pulse, is applied and used for switching the data storage cell to a second polarization state. The addressed cell is thus set to a predetermined polarization state as specified by the addressing operation.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: April 1, 2008
    Assignee: Thin Film Electronics ASA
    Inventors: Per Hamberg, Christer Karlsson, Per-Erik Nordal, Nicklas Ojakangas, Johan Carlsson, Hans Gude Gudesen
  • Publication number: 20070103960
    Abstract: In a method for reducing detrimental phenomena related to disturb voltages in a data storage apparatus employing passive matrix addressing, particularly a memory device or a sensor device, an application of electric potentials conforming to an addressing operation is generally controlled in a time-coordinated manner according to a voltage pulse protocol. In an addressing operation a data storage cell is set to a first polarization state by means of a first active voltage pulse and then, dependent on the voltage pulse protocol, a second voltage pulse which may be a second active voltage pulse of opposite polarity to that of the first voltage pulse, is applied and used for switching the data storage cell to a second polarization state. The addressed cell is thus set to a predetermined polarization state as specified by the addressing operation.
    Type: Application
    Filed: November 24, 2004
    Publication date: May 10, 2007
    Applicant: Thin Film Electronics ASA
    Inventors: Per Hamberg, Christer Karlsson, Per-Erik Nordal, Nicklas Ojakangas, Johan Carlsson, Hans Gudesen
  • Patent number: 7215565
    Abstract: In a method for operating a passive matrix-addressable ferroelectric or electret memory device, a voltage pulse protocol based on a 1/3 voltage selection rule is used in order to keep disturb voltages at minimum, the voltage pulse protocol comprising cycles for read and write/erase bases on time sequence of voltage pulses with defined parameters. The method comprises a refresh procedure wherein cells for refresh are selected and refresh requests processed by a memory device controller, the refresh requests are monitored and processed in regard of ongoing or scheduled memory operations, and refresh voltage pulses with defined parameters are applied to the memory cells selected for refresh, while simultaneously ensuring that non-selected memory cells are subjected to zero voltage or voltages which do not affect the polarization state of these cells.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: May 8, 2007
    Assignee: Thin Film Electronics ASA
    Inventors: Christer Karlsson, Göran Gustafsson, Mats Johansson, Per Sandström, Per-Erik Nordal, Hans Gude Gudesen, Johan Carlsson
  • Patent number: 7211885
    Abstract: In a memory and/or data processing device having at least two stacked layers which are supported by a substrate or forming a sandwiched self-supporting structure, wherein the layers include memory and/or processing circuitry with mutual connections between the layers and/or to circuitry in the substrate, the layers the are mutually arranged such that contiguous layers form a staggered structure on at least one edge of the device and at least one electrical edge conductor is provided passing over the edge on one layer and down one step at a time, enabling the connection to an electrical conductor in any of the following layers in the stack. A method for manufacturing a device of this kind includes the steps for adding the layers successively, one layer at a time, such that the layers form a staggered structure, and for providing one or more layers with at least one electrical contact pad for linking to one or more interlayer edge connectors.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: May 1, 2007
    Assignee: Thin Film Electronics ASA
    Inventors: Per-Erik Nordal, Hans Gude Gudesen, Geirr Ivarsson Leidstad, Göran Gustafsson, Johan Carlsson
  • Patent number: 7130040
    Abstract: Methods for the continuous determination of the properties of a flow of wood fibers for use in the production of fiberboard are disclosed including determining reference value characteristics for calibration samples of the fibers, determining predetermined relationships between those reference value characteristics and measured spectral values for the fibers utilizing multivariant statistical regression methods, measuring reflectance spectral values for the fibers illuminated by light, and determining the fiber characteristics relating to the properties from the measured spectral values utilizing the predetermined relationship.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: October 31, 2006
    Assignee: Valmet Fibertech AB
    Inventors: Thore Lindgren, Johan Carlsson, Ulrika Backlund
  • Publication number: 20060146589
    Abstract: In a method for operating a passive matrix-addressable ferroelectric or electret memory device, a voltage pulse protocol based on a 1/3 voltage selection rule is used in order to keep disturb voltages at minimum, the voltage pulse protocol comprising cycles for read and write/erase bases on time sequence of voltage pulses with defined parameters. The method comprises a refresh procedure wherein cells for refresh are selected and refresh requests processed by a memory device controller, the refresh requests are monitored and processed in regard of ongoing or scheduled memory operations, and refresh voltage pulses with defined parameters are applied to the memory cells selected for refresh, while simultaneously ensuring that non-selected memory cells are subjected to zero voltage or voltages which do not affect the polarization state of these cells.
    Type: Application
    Filed: January 4, 2005
    Publication date: July 6, 2006
    Applicant: Thin Film Electronics ASA
    Inventors: Christer Karlsson, Goran Gustafsson, Mats Johansson, Per Sandstrom, Per-Erik Nordal, Hans Gudesen, Johan Carlsson
  • Publication number: 20060073658
    Abstract: In a method for making ferroelectric memory cells in a ferroelectric memory device a first electrode comprising at least one metal layer and optionally at least one metal oxide layer is formed on a silicon substrate which has an optional insulating layer of silicon dioxide. A ferroelectric layer consisting of a thin film of ferroelectric polymer is formed on the top of the first electrode layer and at least a second electrode comprising at least one metal layer and at least one metal oxide layer is formed on the ferroelectric layer. The second electrode is deposited by thermal evaporation of a high-purity evaporation source from an effusion cell onto the ferroelectric layer in a vacuum chamber filled with a gas or a gas mixture.
    Type: Application
    Filed: December 6, 2005
    Publication date: April 6, 2006
    Inventors: Henrik Ljungcrantz, Niclas Edvardsson, Johan Carlsson, Goran Gustafsson
  • Patent number: 6979643
    Abstract: In a method for forming interlayer connections, metal conducting paths in an overlaying layer and vias forming the deposit in one and the same operation. In an interlayer connection formed in this manner the vias are provided integral with connecting conducting paths in the overlaying layer.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: December 27, 2005
    Assignee: Thin Film Electronics ASA
    Inventors: Goran Gustafsson, Peter Dyreklev, Johan Carlsson
  • Patent number: 6950330
    Abstract: A method of driving a passive matrix display or memory array of cells comprising an electrically polarizable material exhibiting hysteresis, in particular a ferroelectric material, wherein the polarization state of individual cells can be switched by application of electric potentials or voltages to word and bit lines in the matrix or array.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: September 27, 2005
    Assignee: Thin Film Electronics ASA
    Inventors: Michael O. Thompson, Per-Erik Nordal, Hans Gude Gudesen, Johan Carlsson, Göran Gustafsson
  • Publication number: 20050058010
    Abstract: A method of driving a passive matrix display or memory array of cells comprising an electrically polarizable material exhibiting hysteresis, in particular a ferroelectric material, wherein the polarization state of individual cells can be switched by application of electric potentials or voltages to word and bit lines in the matrix or array.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 17, 2005
    Inventors: Michael Thompson, Per-Erik Nordal, Hans Gudesen, Johan Carlsson, Goran Gustafsson
  • Patent number: 6852555
    Abstract: In a method in the fabrication of an organic thin-film semiconducting device comprising an electrode arrangement with electrodes contacting a semiconducting organic material, an anode in the electrode arrangement is made as a two-layer structure, where the first layer is a conducting or semiconducting material or a combination thereof deposited on a substrate and a second layer is a conducting polymer with a work function higher than that of the material in the first layer. A third layer consisting of semiconducting organic material and forming the active material of the device is deposited on the top of the anode, and the cathode made of a fourth layer of a metal deposited on a third layer. In a preferred embodiment a low work function metal is used in the first layer, a doped conjugated polymer such as PEDOT-PSS in the second layer, while the cathode may be formed of the same metal as used in the first layer.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: February 8, 2005
    Assignee: Thin Film Electronics ASA
    Inventors: Lucimara Stolz Roman, Olle Inganäs, Olle Hagel, Johan Carlsson, Göran Gustafsson, Magnus Berggren
  • Publication number: 20040209420
    Abstract: A ferroelectric memory device wherein the memory cell includes a first and second electrode having at least one metal layer and possibly at least one metal oxide layer. The first electrode is formed on a silicon substrate which has an optional insulating layer of silicon dioxide. A ferroelectric layer consisting of a thin film of ferroelectric polymer if formed on the top of the first electrode layer and at least a second electrode is formed on the ferroelectric layer. The ferroelectric memory includes at least a first and a second set of respectively parallel electrodes, wherein the electrodes in a set are provided orthogonally to the electrodes of a nearest following set and with memory cells formed in a ferroelectric layer provided between successive electrode sets, such that the memory cells are defined in the crossings between the electrodes which contact the ferroelectric layer on each side thereof.
    Type: Application
    Filed: June 18, 2003
    Publication date: October 21, 2004
    Inventors: Henrik Ljungcrantz, Niclas Edvardsson, Johan Carlsson, Goran Gustafsson
  • Patent number: 6804138
    Abstract: In a method of driving a passive matrix display or memory array of cells comprising an electrically polarizable material exhibiting hysteresis, in particular a ferroelectric material, wherein the polarization state of individual cells can be switched by application of electric potentials or voltages to word and bit lines in the matrix or array, a potential on selected word and bit lines is controlled to approach or coincide with one of n predefined potential levels and the potentials on all word and bit lines are controlled in time according to a protocol such that word lines are sequentially latched to potentials selected among nWORD potentials, while the bit lines are either latched sequentially to potentials selected among nBIT potentials, or during a certain period of a timing sequence given by the protocol connected to circuitry for detecting charges flowing between a bit line or bit lines and cells connecting thereto.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: October 12, 2004
    Assignee: Thin Film Electronics ASA
    Inventors: Michael O. Thompson, Per-Erik Nordal, Hans Gude Gudesen, Johan Carlsson, Göran Gustafsson
  • Patent number: 6792717
    Abstract: A sliding door operating mechanism for a vehicle to provide access to the vehicle through an opening in a wall thereof, includes at least one sliding door and a reciprocating power mechanism and a transmission mechanism for transmitting movement of power to the door for performing opening, closing and locking movements thereof. A beam structure carries the door, the power mechanism and the transmission mechanism. The beam structure extends across and is accommodated within an upper portion of the opening so as to be slidingly movably driven by the power mechanism between a relatively retracted position within the opening, in which the door is located in a first plane in a closed position confirmed within the opening, and a relatively less retracted position, in which the door is located in a second plane exteriorly of the opening allowing movement of the door along the second plane.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: September 21, 2004
    Assignee: Hubner GmbH
    Inventors: Johan Carlsson, Lars Linden, Martin Persson
  • Patent number: 6787825
    Abstract: A data storage/processing apparatus includes ROM and/or WORM and/or REWRITEABLE memory modules and/or processing modules provided as a single main layer or multiple main layers on top of a substrate. Transistors and/or diodes operate the apparatus. In one set of embodiments, at least some of the transistors and/or diodes are provided on or in the substrate. In another set of embodiments, at least some of the layers on the top of the substrate include low-temperature compatible organic materials and/or low temperature compatible processes inorganic films, and the transistors and/or diodes need not be disposed on or in the substrate. In a related fabricating method, the memory and/or processing modules are provided on the substrate by depositing the layers in successive steps under thermal conditions that avoid subjecting an already-deposited, processed underlying layers to static or dynamic temperatures exceeding given stability limits, particularly with regard to organic materials.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: September 7, 2004
    Assignee: Thin Film Electronics ASA
    Inventors: Hans Gude Gudesen, Per-Erik Nordal, Geirr I. Leistad, Johan Carlsson, Göran Gustafsson, Michael O Thompson
  • Publication number: 20040137712
    Abstract: In a method for forming interlayer connections, metal conducting paths in an overlying layer and vias forming the connections to conducting paths on an underlying layer are both deposited in one and the same operation. In an interlayer connection formed in this manner the vias are provided integral with connecting conducting paths in the overlying layer.
    Type: Application
    Filed: November 25, 2003
    Publication date: July 15, 2004
    Inventors: Goran Gustafsson, Peter Dyreklev, Johan Carlsson
  • Publication number: 20030218191
    Abstract: In a memory and/or data processing device having at least two stacked layers (L) which are supported by a substrate (2) or forming a sandwiched self-supporting structure, wherein the layers (L) comprise memory and/or processing circuitry with mutual connections between the layers and/or to circuitry in the substrate (2), the layers (L) are mutually arranged such that contiguous layers form a staggered structure on at least one edge of the device and at least one electrical edge conductor (3) is provided passing over the edge on one layer and down one step at a time, enabling the connection to an electrical conductor in any of the following layers in the stack.
    Type: Application
    Filed: March 14, 2003
    Publication date: November 27, 2003
    Inventors: Per-Erik Nordal, Hans Gude Gudesen, Geirr Ivarsson Leidstad, Goran Gustafsson, Johan Carlsson