Patents by Inventor Man-Chung Tang

Man-Chung Tang 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: 20230413661
    Abstract: Described herein are a novel concept of thermally stimulated delayed phosphorescence (TSDP) to harvest light emission from the higher energy triplet excited state via the up-conversion from the lowest-energy triplet excited state by efficient spin-allowed reverse internal conversion as well as the development of TSDP emitters, as exemplified by a novel class of gold(III) compounds with TSDP properties and methods of making and using said compounds. The gold(III) compound includes a triazine-containing cyclometalating tridentate ligand and one auxiliary ligand, both coordinated to a gold(III) metal center. The gold(III) compounds disclosed herein can be used as light-emitting material for fabrication of OLEDs.
    Type: Application
    Filed: August 17, 2023
    Publication date: December 21, 2023
    Inventors: Vivian Wing-Wah YAM, Man-Chung TANG, Ming-Yi LEUNG, Shiu-Lun LAI, Mei-Yee CHAN
  • Patent number: 11770970
    Abstract: A series of thermally stable and highly luminescent cyclometalated tetradentate ligand-containing gold(III) compounds was designed and synthesized. The cyclometalated tetradentate ligand-containing gold(III) compounds can be used as light-emitting material for fabrication of light-emitting devices. The cyclometalated tetradentate ligand-containing gold(III) compounds can be deposited as a layer or a component of a layer using a solution-processing technique or a vacuum deposition process. The cyclometalated tetradentate ligand-containing gold(III) compounds are robust and can provide electroluminescence with high efficiency and brightness. More importantly, the vacuum-deposited OLEDs demonstrate long operational stabilities with half-lifetime of over 29,700 hours at 100 cd m?2.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: September 26, 2023
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Man-Chung Tang, Lok-Kwan Li, Mei-Yee Chan
  • Publication number: 20230112122
    Abstract: A series of thermally stable and highly luminescent cyclometalated tetradentate ligand-containing gold(III) compounds was designed and synthesized. The cyclometalated tetradentate ligand-containing gold(III) compounds can be used as light-emitting material for fabrication of light-emitting devices. The cyclometalated tetradentate ligand-containing gold(III) compounds can be deposited as a layer or a component of a layer using a solution-processing technique or a vacuum deposition process. The cyclometalated tetradentate ligand-containing gold(III) compounds are robust and can provide electroluminescence with high efficiency and brightness. More importantly, the vacuum-deposited OLEDs demonstrate long operational stabilities with half-lifetime of over 29,700 hours at 100 cd m?2.
    Type: Application
    Filed: November 10, 2022
    Publication date: April 13, 2023
    Inventors: Vivian Wing-Wah YAM, Man-Chung TANG, Lok-Kwan LI, Mei-Yee CHAN
  • Patent number: 11532795
    Abstract: A series of thermally stable and highly luminescent cyclometalated tetradentate ligand-containing gold(III) compounds was designed and synthesized. The cyclometalated tetradentate ligand-containing gold(III) compounds can be used as light-emitting material for fabrication of light-emitting devices. The cyclometalated tetradentate ligand-containing gold(III) compounds can be deposited as a layer or a component of a layer using a solution-processing technique or a vacuum deposition process. The cyclometalated tetradentate ligand-containing gold(III) compounds are robust and can provide electroluminescence with high efficiency and brightness. More importantly, the vacuum-deposited OLEDs demonstrate long operational stabilities with half-lifetime of over 29,700 hours at 100 cd m?2.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 20, 2022
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Man-Chung Tang, Lok-Kwan Li, Mei-Yee Chan
  • Patent number: 11362287
    Abstract: A novel class of gold(III) compounds containing cyclometalated tridentate ligand and one aryl auxiliary ligand, both coordinated to a gold(III) metal center. (a) X is nitrogen or carbon; (b) Y and Z are independently nitrogen or carbon; (c) A is cyclic structure (derivative) of pyridine, quinoline, isoquinoline or phenyl group; (d) B and C are independently cyclic structures (derivatives) of pyridine, quinoline, isoquinoline or phenyl groups; (e) B and C can be identical or non-identical, with the proviso that both B and C are not 4-tert-butylbenzene; (f) R? is a substituted carbon, nitrogen, oxygen or sulfur donor ligand attached to the gold atom; (g) n is zero, a positive integer or a negative integer. wherein R? is selected from, but not limited to, aryl, substituted aryl, heteroaryl, substituted heteroaryl, heterocyclic aryl and substituted heterocyclic aryl, alkoxy, aryloxy, amide, thiolate, sulfonate, phosphide, fluoride, chloride, bromide, iodide, cyanate, thiocyanate or cyanide.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 14, 2022
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Man Chung Tang, Mei Yee Chan, Chin Ho Lee, Lok Kwan Li
  • Patent number: 11274246
    Abstract: Described herein are gold (III) compounds according to formula (I) for use as emitters in organic light-emitting devices (OLEDs) and methods of making and using said compounds. The gold (III) compound includes a group 15 element containing tridentate ligand and one aryl auxiliary ligand that are both coordinated to the gold (III) metal center to form a series of thermally stable and highly luminescent gold (III) complexes. The gold (III) compounds disclosed herein can be used as light-emitting material for fabrication of OLEDs. The gold (III) compounds can be deposited as a layer or a component of a layer using a solution processing technique or a vacuum deposition process. The gold (III) compounds are robust and can provide electroluminescence with high efficiency and brightness.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 15, 2022
    Assignee: THE UNIVERSITY OF HONG KONG
    Inventors: Vivian Wing-Wah Yam, Chin-Ho Lee, Man-Chung Tang, Mei-Yee Chan
  • Publication number: 20210074933
    Abstract: A novel class of gold (III) compounds with thermally stimulated delayed phosphorescence (TSDP) properties, methods of making and use thereof are disclosed. The gold (III) compound includes a triazine-containing cyclometalating tridentate ligand and one auxiliary ligand, both coordinated to a gold (III) metal center. The gold (III) compounds can be used as light-emitting material for fabrication of OLEDs. A novel concept of TSDP to harvest light emission from the higher energy triplet excited state via the up-conversion from the lowest-energy triplet excited state by efficient spin-allowed reverse internal conversion is also disclosed.
    Type: Application
    Filed: January 2, 2019
    Publication date: March 11, 2021
    Inventors: Vivian Wing-Wah YAM, Man-Chung TANG, Ming-Yi LEUNG, Shiu-Lun LAI, Mei-Yee CHAN
  • Publication number: 20200255726
    Abstract: Described herein are gold (III) compounds according to formula (I) for use as emitters in organic light-emitting devices (OLEDs) and methods of making and using said compounds. The gold (III) compound includes a group 15 element containing tridentate ligand and one aryl auxiliary ligand that are both coordinated to the gold (III) metal center to form a series of thermally stable and highly luminescent gold (III) complexes. The gold (III) compounds disclosed herein can be used as light-emitting material for fabrication of OLEDs. The gold (III) compounds can be deposited as a layer or a component of a layer using a solution processing technique or a vacuum deposition process. The gold (III) compounds are robust and can provide electroluminescence with high efficiency and brightness.
    Type: Application
    Filed: September 6, 2018
    Publication date: August 13, 2020
    Inventors: Vivian Wing-Wah YAM, Chin-Ho LEE, Man-Chung TANG, Mei-Yee CHAN
  • Publication number: 20200203637
    Abstract: A series of thermally stable and highly luminescent cyclometalated tetradentate ligand-containing gold(III) compounds was designed and synthesized. The cyclometalated tetradentate ligand-containing gold(III) compounds can be used as light-emitting material for fabrication of light-emitting devices. The cyclometalated tetradentate ligand-containing gold(III) compounds can be deposited as a layer or a component of a layer using a solution-processing technique or a vacuum deposition process. The cyclometalated tetradentate ligand-containing gold(III) compounds are robust and can provide electroluminescence with high efficiency and brightness. More importantly, the vacuum-deposited OLEDs demonstrate long operational stabilities with half-lifetime of over 29,700 hours at 100 cd m?2.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Inventors: Vivian Wing-Wah YAM, Man-Chung TANG, Lok-Kwan LI, Mei-Yee CHAN
  • Publication number: 20200172562
    Abstract: Described herein are transition metal complexes containing nickel(II), as the central metal atom, and tridentate and tetradentate ligands. The transition metal complexes also include an ancillary ligand with strong ?-donating properties. The ancillary ligand enhances the luminescence by increasing the chances of populating the emissive state. The transition metal complexes are emissive at room temperature and/or low temperature in various media, rendering them useful as light-emitting materials for OLEDs.
    Type: Application
    Filed: December 9, 2019
    Publication date: June 4, 2020
    Inventors: Vivian Wing-Wah Yam, Yip-Sang Wong, Man-Chung Tang, Mei-Yee Chan
  • Publication number: 20200176691
    Abstract: Described herein are transition metal complexes containing nickel(II), as the central metal atom, and tridentate and tetradentate ligands. The transition metal complexes also include an ancillary ligand with strong ?-donating properties. The ancillary ligand enhances the luminescence by increasing the chances of populating the emissive state. The transition metal complexes are emissive at room temperature and/or low temperature in various media, rendering them useful as light-emitting materials for OLEDs.
    Type: Application
    Filed: December 4, 2019
    Publication date: June 4, 2020
    Inventors: Vivian Wing-Wah Yam, Yip-Sang Wong, Man-Chung Tang, Mei-Yee Chan
  • Publication number: 20200052229
    Abstract: Disclosed is a class of dendrimers containing cyclometalated tridentate platinum(II) compounds with one monoanionic auxiliary ligand, both coordinated to a platinum (II) metal center and having the chemical structure shown in generic formula (I), wherein at least one of R1, R2 and R3 being a dendrimeric moiety of general formula (II), each being optionally substituted.
    Type: Application
    Filed: April 16, 2018
    Publication date: February 13, 2020
    Inventors: Vivian Wing-Wah YAM, Ka-Wai KONG, Man-Chung TANG, Mei-Yee CHAN
  • Publication number: 20200044167
    Abstract: A novel class of gold(III) compounds containing cyclometalated tridentate ligand and one aryl auxiliary ligand, both coordinated to a gold(III) metal center. (a) X is nitrogen or carbon; (b) Y and Z are independently nitrogen or carbon; (c) A is cyclic structure (derivative) of pyridine, quinoline, isoquinoline or phenyl group; (d) B and C are independently cyclic structures (derivatives) of pyridine, quinoline, isoquinoline or phenyl groups; (e) B and C can be identical or non-identical, with the proviso that both B and C are not 4-tert-butylbenzene; (f) R? is a substituted carbon, nitrogen, oxygen or sulfur donor ligand attached to the gold atom; (g) n is zero, a positive integer or a negative integer. wherein R? is selected from, but not limited to, aryl, substituted aryl, heteroaryl, substituted heteroaryl, heterocyclic aryl and substituted heterocyclic aryl, alkoxy, aryloxy, amide, thiolate, sulfonate, phosphide, fluoride, chloride, bromide, iodide, cyanate, thiocyanate or cyanide.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 6, 2020
    Inventors: Vivian Wing-Wah Yam, Man Chung Tang, Mei Yee Chan, Chin Ho Lee, Lok Kwan Li
  • Patent number: 9224962
    Abstract: A novel class of saturated or conjugated dendrimers containing at least one strong ?-donating group coordinated to cyclometalated tridentate gold(III) compounds having the chemical structure depicted by generic formula: wherein: (a) [Au] is a cyclometalated tridentate gold(III) group; (b) Unit A is a ?-donating chemical group; (c) Unit B is a central part of the dendrons comprising a branch point of component dendrimers; (d) Unit C is optional surface groups or dendrons of the dendrimers; (e) n=0 or 1.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: December 29, 2015
    Assignee: The University of Hong Kong
    Inventors: Vivian Wing Wah Yam, Kobe Man Chung Tang, Maggie Mei Yee Chan, Keith Man Chung Wong
  • Publication number: 20130228758
    Abstract: A novel class of saturated or conjugated dendrimers containing at least one strong ?-donating group coordinated to cyclometalated tridentate gold(III) compounds having the chemical structure depicted by generic formula: wherein: (a) [Au] is a cyclometalated tridentate gold(III) group; (b) Unit A is a ?-donating chemical group; (c) Unit B is a central part of the dendrons comprising a branch point of component dendrimers; (d) Unit C is optional surface groups or dendrons of the dendrimers; (e) n=0 or 1.
    Type: Application
    Filed: February 27, 2013
    Publication date: September 5, 2013
    Inventors: Vivian Wing Wah Yam, Kobe Man Chung Tang, Maggie Mei Yee Chan, Keith Man Chung Wong
  • Patent number: 4452017
    Abstract: An air inflated bubble roof, such as for a stadium, arena or the like, includes a compression ring extending around the perimeter of the roof. An upper and a lower cable net each spans and is attached to the compression ring. An inflatable membrane member is located between the two cable nets and bows the cable nets apart when it is inflated. A bladder is located within the inflatable membrane member and, in combination with the upper and lower parts of the membrane member, forms a seal around its perimeter.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: June 5, 1984
    Assignee: Dyckerhoff & Widmann Aktiengesellschaft
    Inventors: Man-Chung Tang, Yee-Yun Tang
  • Patent number: 4123485
    Abstract: An elongated elevated box girder and roadway structure is constructed in a number of individual elongated sections with the support structure and formwork being reused, in turn, for each section. Each section is constructed in a number of stages. Initially, a support structure is built up from grade or is mounted on permanent upright members of the structure being formed, such as piers or abutments. Formwork for the bottom slab and the upright outside webs of the box girders are placed upon the support structure. Concrete is poured into the formwork for the bottom slab and webs and, after being allowed to set for a given period, and posttensioned, if necessary, the formwork is stripped and the support structure is removed. The support structure and formwork are then moved and set up for the next section to be constructed. The roadway slab includes the top slab of the box girder and cantilever sections extending laterally outwardly from each side of the top slab.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: October 31, 1978
    Assignee: Dyckerhoff & Widmann Aktiengesellschaft
    Inventor: Man-Chung Tang