Patents by Inventor Yong Hsu

Yong Hsu 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: 6270944
    Abstract: A thermal transfer element for forming a multilayer device may include a substrate and a multicomponent transfer unit that, when transferred to a receptor, is configured and arranged to form a first operational layer and a second operational layer of a multilayer device. In at least some instances, the thermal transfer element also includes a light-to-heat conversion (LTHC) layer that can convert light energy to heat energy to transfer the multicomponent transfer unit. Transferring the multicomponent transfer unit to the receptor may include contacting a receptor with a thermal transfer element having a substrate and a multicomponent transfer unit. Then, the thermal transfer element is selectively heated to transfer the multicomponent transfer unit to the receptor according to a pattern to form at least first and second operational layers of a device.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: August 7, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Martin B. Wolk, Paul F. Baude, Jeffrey M. Florczak, Fred B. McCormick, Yong Hsu
  • Publication number: 20010000744
    Abstract: Disclosed are thermal transfer elements and processes for patterning organic materials for electronic devices onto patterned substrates. These donor elements and methods are particularly suited for making organic electroluminescent devices and displays. The donor elements can include a substrate, an optional light-to-heat conversion layer, and a single or multicomponent transfer layer that can be imagewise transferred to a receptor to form an organic electroluminescent device, portions thereof, or components therefor.
    Type: Application
    Filed: December 1, 2000
    Publication date: May 3, 2001
    Applicant: 3M Innovative Properties Company
    Inventors: Martin B. Wolk, Paul F. Baude, Fred B. McCormick, Yong Hsu
  • Patent number: 6221553
    Abstract: A thermal transfer element for forming a multilayer device may include a substrate and a multicomponent transfer unit that, when transferred to a receptor, is configured and arranged to form a first operational layer and a second operational layer of a multilayer device. In at least some instances, the thermal transfer element also includes a light-to-heat conversion (LTHC) layer that can convert light energy to heat energy to transfer the multicomponent transfer unit. Transferring the multicomponent transfer unit to the receptor may include contacting a receptor with a thermal transfer element having a substrate and a multicomponent transfer unit. Then, the thermal transfer element is selectively heated to transfer the multicomponent transfer unit to the receptor according to a pattern to form at least first and second operational layers of a device.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: April 24, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Martin B. Wolk, Paul F. Baude, Jeffrey M. Florczak, Fred B. McCormick, Yong Hsu
  • Patent number: 6214520
    Abstract: A thermal transfer element for forming a multilayer device may include a substrate and a multicomponent transfer unit that, when transferred to a receptor, is configured and arranged to form a first operational layer and a second operational layer of a multilayer device. In at least some instances, the thermal transfer element also includes a light-to-heat conversion (LTHC) layer that can convert light energy to heat energy to transfer the multicomponent transfer unit. Transferring the multicomponent transfer unit to the receptor may include contacting a receptor with a thermal transfer element having a substrate and a multicomponent transfer unit. Then, the thermal transfer element is selectively heated to transfer the multicomponent transfer unit to the receptor according to a pattern to form at least first and second operational layers of a device.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: April 10, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Martin B. Wolk, Paul F. Baude, Jeffrey M. Florczak, Fred B. McCormick, Yong Hsu
  • Patent number: 6194119
    Abstract: Disclosed are thermal transfer elements and processes for patterning solvent-coated layers and solvent-susceptible layers onto the same receptor substrate. These donor elements and methods are particularly suited for making organic electroluminescent devices and displays. The donor elements can include a substrate, an optional light-to-heat conversion layer, and a single or multicomponent transfer layer that can be imagewise transferred to a receptor to form an organic electroluminescent device, portions thereof, or components therefor. The methods offer advantages over conventional patterning techniques such as photolithography, and make it possible to fabricate new organic electroluminescent device constructions.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: February 27, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Martin B. Wolk, Paul F. Baude, Fred B. McCormick, Yong Hsu
  • Patent number: 6140009
    Abstract: A thermal transfer element for forming a multilayer device may include a substrate and a multicomponent transfer unit that, when transferred to a receptor, is configured and arranged to form a first operational layer and a second operational layer of a multilayer device. In at least some instances, the thermal transfer element also includes a light-to-heat conversion (LTHC) layer that can convert light energy to heat energy to transfer the multicomponent transfer unit. Transferring the multicomponent transfer unit to the receptor may include contacting a receptor with a thermal transfer element having a substrate and a multicomponent transfer unit. Then, the thermal transfer element is selectively heated to transfer the multicomponent transfer unit to the receptor according to a pattern to form at least first and second operational layers of a device.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: October 31, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Martin B. Wolk, Paul F. Baude, Fred B. McCormick, Yong Hsu
  • Patent number: 6114088
    Abstract: A thermal transfer element for forming a multilayer device may include a substrate and a multicomponent transfer unit that, when transferred to a receptor, is configured and arranged to form a first operational layer and a second operational layer of a multilayer device. In at least some instances, the thermal transfer element also includes a light-to-heat conversion (LTHC) layer that can convert light energy to heat energy to transfer the multicomponent transfer unit. Transferring the multicomponent transfer unit to the receptor may include contacting a receptor with a thermal transfer element having a substrate and a multicomponent transfer unit. Then, the thermal transfer element is selectively heated to transfer the multicomponent transfer unit to the receptor according to a pattern to form at least first and second operational layers of a device.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: September 5, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Martin B. Wolk, Paul F. Baude, Jeffrey M. Florczak, Fred B. McCormick, Yong Hsu
  • Patent number: 6020457
    Abstract: Dendritic polymers containing disulfide functional groups which are essentially inert under non-reducing conditions, but which form sulfhydryl groups upon being subjected to a reducing agent are prepared by synthesizing dendritic polymers having a core with a disulfide linkage or by reacting a dendritic polymer with a molecule containing a disulfide linkage and reactive terminal groups. In one aspect of the invention, dendritic polymers having a single disulfide functional group at the core are provided. The single disulfide group at the core can be reduced to form two sulfhydryl groups to which other molecules, such as proteins, oligonucleotides, peptides, hormones, other dendritic polymers, non-dendritic polymers, etc., can be bound.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: February 1, 2000
    Assignee: Dendritech Inc.
    Inventors: June W. Klimash, Herbert M. Brothers, II, Douglas R. Swanson, Rui Yin, Ralph Spindler, Donald A. Tomalia, Yong Hsu, Roberta C. Cheng