Patents by Inventor Brian N. Johnson

Brian N. Johnson 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).

  • Patent number: 11967353
    Abstract: Memory devices and systems with programmable refresh order and stagger times are disclosed herein. In one embodiment, a memory device includes a first memory bank group and a second memory bank group. The memory device is configured, in response to a refresh command, to perform a first refresh operation on the first memory bank group at a first time and a second refresh operation on the second memory bank group at a second time after the first time. The memory device is further configured to perform, in response to a read or write command, a read or write operation on the first memory bank group, the second memory bank group, or both the first and second memory bank groups after beginning the first refresh operation and before completing the second refresh operation.
    Type: Grant
    Filed: September 21, 2022
    Date of Patent: April 23, 2024
    Inventors: Vaughn N. Johnson, Debra M. Bell, Miles S. Wiscombe, Brian T. Pecha, Kyle Alexander
  • Patent number: 11953459
    Abstract: A multi-functional sensor assembly includes an electrically non-conductive substrate defining at least a distal region, intermediary region, and proximal region that are each covered with electrically conductive traces. The proximal region is configured to be exposed to a media to be sensed and the distal and intermediary regions are configured to be protected from the media. The electrically conductive traces comprise at least electrical circuits to sense temperature and flow of the media and one or more electrodes to sense one or more of conductivity, oxidation reduction potential (ORP), and acidity (pH) of the media.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 9, 2024
    Assignees: MASCO CORPORATION, The Regents of the University of Michigan
    Inventors: Klaus Brondum, Mark Andrew Burns, Wen-Chi Lin, Michael McCague, Stephen Michael Stec, Brian N. Johnson, Garry Marty
  • Patent number: 11934326
    Abstract: Memory devices and systems with improved command/address bus utilization are disclosed herein. In one embodiment, a memory device comprises a plurality of external command/address terminals and a command decoder. The plurality of external command/address terminals are configured to receive a command as a corresponding plurality of command/address bits. A first set of the command/address bits indicate a read or write operation. A second set of the command/address bits indicate whether to execute a refresh operation. The memory device is configured to, in response to the first set of command/address bits, execute the read or write operation on a portion of a memory array. The memory device is further configured to, in response to the second set of command/address bits, execute the refresh operation to refresh at least one memory bank of the memory array when the second set of command/address bits indicate that the refresh operation should be executed.
    Type: Grant
    Filed: August 6, 2022
    Date of Patent: March 19, 2024
    Inventors: Debra M. Bell, Vaughn N. Johnson, Kyle Alexander, Gary L. Howe, Brian T. Pecha, Miles S. Wiscombe
  • Publication number: 20210140904
    Abstract: A multi-functional sensor assembly includes an electrically non-conductive substrate defining at least a distal region, intermediary region, and proximal region that are each covered with electrically conductive traces. The proximal region is configured to be exposed to a media to be sensed and the distal and intermediary regions are configured to be protected from the media. The electrically conductive traces comprise at least electrical circuits to sense temperature and flow of the media and one or more electrodes to sense one or more of conductivity, oxidation reduction potential (ORP), and acidity (pH) of the media.
    Type: Application
    Filed: January 22, 2021
    Publication date: May 13, 2021
    Inventors: Klaus Brondum, Mark Andrew Burns, Wen-Chi Lin, Michael McCague, Stephen Michael Stec, Brian N. Johnson, Garry Marty
  • Patent number: 8617905
    Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: December 31, 2013
    Assignee: The Regents of the University of Michigan
    Inventors: Mark A. Burns, Brian N. Johnson, Michael Chen
  • Patent number: 8573259
    Abstract: A modular microfluidic system comprising a base substrate, a plurality of microfluidic assembly blocks, and an adhesive component is provided. Each individual microfluidic assembly block defines a channel and has a sidewall defining an aperture into the channel. When the plurality of microfluidic assembly blocks are arranged on the base substrate, the aperture into the channel of one microfluidic assembly block aligns with the aperture of another microfluidic assembly block with the channels thereof connected along a plane parallel to the base substrate thereby forming a channel network defined by the plurality of microfluidic assembly blocks. The subject invention also provides a method of assembling a microfluidic device. The method comprising the steps of providing the base substrate, providing the plurality of microfluidic assembly blocks, and arranging the plurality of microfluidic assembly blocks on the base substrate.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: November 5, 2013
    Assignee: The Regents of the University of Michigan
    Inventors: Mark A. Burns, Minsoung Rhee, Sean M. Langelier, Brian N. Johnson
  • Publication number: 20120077231
    Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Inventors: Mark A. Burns, Brian N. Johnson, Michael Chen
  • Patent number: 8071056
    Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: December 6, 2011
    Assignee: The Regents of the University of Michigan
    Inventors: Mark A. Burns, Brian N. Johnson, Michael Chen
  • Publication number: 20100258211
    Abstract: A modular microfluidic system comprising a base substrate, a plurality of microfluidic assembly blocks, and an adhesive component is provided. Each individual microfluidic assembly block defines a channel and has a sidewall defining an aperture into the channel. When the plurality of microfluidic assembly blocks are arranged on the base substrate, the aperture into the channel of one microfluidic assembly block aligns with the aperture of another microfluidic assembly block with the channels thereof connected along a plane parallel to the base substrate thereby forming a channel network defined by the plurality of microfluidic assembly blocks. The subject invention also provides a method of assembling a microfluidic device. The method comprising the steps of providing the base substrate, providing the plurality of microfluidic assembly blocks, and arranging the plurality of microfluidic assembly blocks on the base substrate.
    Type: Application
    Filed: March 25, 2010
    Publication date: October 14, 2010
    Inventors: Mark A. Burns, Minsoung Rhee, Sean M. Langelier, Brian N. Johnson
  • Patent number: 7066453
    Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: June 27, 2006
    Assignee: The Regents of the University of Michigan
    Inventors: Mark A. Burns, Carlos H. Mastrangelo, Timothy S. Sammarco, Francis P. Man, James R. Webster, Brian N. Johnson, Bradley Foerster, Darren Jones, Yakeitha Fields, Adam Kaiser, David T. Burke
  • Patent number: 6949385
    Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: September 27, 2005
    Assignee: The Regents of the University of Michigan
    Inventors: Mark A. Burns, Brian N. Johnson, Michael Chen
  • Publication number: 20020172969
    Abstract: Disclosed are methods and compositions for isothermal amplification of nucleic acids in a microfabricated substrate. Methods and compositions for the analysis of isothermally amplified nucleic acids in a microfabricated substrate are disclosed as well. The microfabricated substrates and isothermal amplification and detection methods provided are envisioned for use in various diagnostic methods, particularly those connected with diseases characterized by altered gene sequences or gene expression.
    Type: Application
    Filed: April 1, 2002
    Publication date: November 21, 2002
    Applicant: The Regents of the University of Michigan
    Inventors: Mark A. Burns, David T. Burke, Brian N. Johnson, John D. DeNuzzio, Wayne F. Beyer
  • Publication number: 20020168671
    Abstract: Disclosed are methods and compositions for isothermal amplification of nucleic acids in a microfabricated substrate. Methods and compositions for the analysis of isothermally amplified nucleic acids in a microfabricated substrate are disclosed as well. The microfabricated substrates and isothermal amplification and detection methods provided are envisioned for use in various diagnostic methods, particularly those connected with diseases characterized by altered gene sequences or gene expression.
    Type: Application
    Filed: April 1, 2002
    Publication date: November 14, 2002
    Applicant: The Regents of the University of Michigan
    Inventors: Mark A. Burns, David T. Burke, Brian N. Johnson, John D. DeNuzzio, Wayne F. Beyer
  • Patent number: 6379929
    Abstract: Disclosed are methods and compositions for isothermal amplification of nucleic acids in a microfabricated substrate. Methods and compositions for the analysis of isothermally amplified nucleic acids in a microfabricated substrate are disclosed as well. The microfabricated substrates and isothermal amplification and detection methods provided are envisioned for use in various diagnostic methods, particularly those connected with diseases characterized by altered gene sequences or gene expression.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: April 30, 2002
    Assignee: The Regents of the University of Michigan
    Inventors: Mark A. Burns, David T. Burke, Brian N. Johnson, John D. DeNuzzio, Wayne F. Beyer, Jr.
  • Publication number: 20010046703
    Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.
    Type: Application
    Filed: December 28, 2000
    Publication date: November 29, 2001
    Applicant: The Regents Of The University Of Michigan
    Inventors: Mark A. Burns, Carlos H. Mastrangelo, Timothy S. Sammarco, Francis P. Man, James R. Webster, Brian N. Johnson, Bradley Foerster, Darren Jones, Yakeitha Fields, Adam Kaiser, David T. Burke
  • Patent number: 6271021
    Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: August 7, 2001
    Assignee: The Regents of The University of Michigan
    Inventors: Mark A. Burns, Carlos H. Mastrangelo, Timothy S. Sammarco, Francis P. Man, James R. Webster, Brian N. Johnson, Bradley Foerster, Darren Jones
  • Patent number: 6057149
    Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.
    Type: Grant
    Filed: September 15, 1995
    Date of Patent: May 2, 2000
    Assignee: The University of Michigan
    Inventors: Mark A. Burns, Carlos H. Mastrangelo, Timothy S. Sammarco, Francis P. Man, James R. Webster, Brian N. Johnson, Bradley Foerster, Darren Jones, Yakeitha Fields, Adam Kaiser, David T. Burke
  • Patent number: 6048734
    Abstract: The movement and mixing of microdroplets through microchannels is described employing silicon-based microscale devices, including microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete droplets are differentially heated and propelled through etched channels. Electronic components are fabricated on the same substrate material, allowing sensors and controlling circuitry to be incorporated in the same device.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: April 11, 2000
    Assignee: The Regents of the University of Michigan
    Inventors: Mark A. Burns, Brian N. Johnson, Michael Chen