Patents by Inventor Chiung-Fang Chang

Chiung-Fang Chang 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: 9962853
    Abstract: An auxiliary support device for circular saw includes a base, a worktable, a support member and a stop member. The base has a supporting portion formed thereon. The worktable is pivotally disposed on the base and is co-planar with the base. The support member is disposed on the supporting portion of the base and is co-planar with the base such that the support member provides support to workpiece of larger size. The base has a mounting hole defined in the supporting portion. The support member has a guiding slot defined therein, a locking member passes through the guiding slot and is secured in the mounting hole for positioning the support member, such that a position of the support member is adjustable relative to the base for adapting to workpieces of various sizes. The stop member is pivotally mounted to one end of the support member adapted for positioning the workpiece.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: May 8, 2018
    Assignee: REXON INDUSTRIAL CORP., LTD.
    Inventors: Jung-Huo Chen, Chiung-Fang Chang
  • Patent number: 9833436
    Abstract: A method of preparing drug agglomerates includes adding a drug powder to a first solvent to form a first solution, adding a second solvent to the first solution to form a second solution. The drug powder undergoes nucleation to form drug agglomerates. The drug agglomerates are isolated from the second solution.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: December 5, 2017
    Assignee: PharmaDax Inc.
    Inventors: Pei-Chun Kuo, Shih-Wei Huang, Chiung-Fang Chang
  • Publication number: 20170224655
    Abstract: A method of preparing drug agglomerates includes adding a drug powder to a first solvent to form a first solution, adding a second solvent to the first solution to form a second solution. The drug powder undergoes nucleation to form drug agglomerates. The drug agglomerates are isolated from the second solution.
    Type: Application
    Filed: April 28, 2017
    Publication date: August 10, 2017
    Inventors: Pei-Chun KUO, Shih-Wei HUANG, Chiung-Fang CHANG
  • Patent number: 9668975
    Abstract: A method of preparing drug agglomerates includes adding a drug powder to a first solvent to form a first solution, adding a second solvent to the first solution to form a second solution. The drug powder undergoes nucleation to form drug agglomerates. The drug agglomerates are isolated from the second solution.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: June 6, 2017
    Assignee: PharmaDax Inc.
    Inventors: Pei-Chun Kuo, Shih-Wei Huang, Chiung-Fang Chang
  • Publication number: 20160332321
    Abstract: An auxiliary support device for circular saw includes a base, a worktable, a support member and a stop member. The base has a supporting portion formed thereon. The worktable is pivotally disposed on the base and is co-planar with the base. The support member is disposed on the supporting portion of the base and is co-planar with the base such that the support member provides support to workpiece of larger size. The base has a mounting hole defined in the supporting portion. The support member has a guiding slot defined therein, a locking member passes through the guiding slot and is secured in the mounting hole for positioning the support member, such that a position of the support member is adjustable relative to the base for adapting to workpieces of various sizes. The stop member is pivotally mounted to one end of the support member adapted for positioning the workpiece.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Applicant: REXON INDUSTRIAL CORP., LTD.
    Inventors: Jung-Huo CHEN, Chiung-Fang CHANG
  • Publication number: 20160101055
    Abstract: A method of preparing drug agglomerates includes adding a drug powder to a first solvent to form a first solution, adding a second solvent to the first solution to form a second solution. The drug powder undergoes nucleation to form drug agglomerates. The drug agglomerates are isolated from the second solution.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 14, 2016
    Inventors: Pei-Chun KUO, Shih-Wei HUANG, Chiung-Fang CHANG
  • Patent number: 8592585
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: November 26, 2013
    Assignee: National Tsing Hua University
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Patent number: 8410269
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: April 2, 2013
    Assignee: National Tsing Hua University
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Publication number: 20110313161
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Application
    Filed: August 29, 2011
    Publication date: December 22, 2011
    Applicant: National Tsing Hua University
    Inventors: Yun CHI, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Publication number: 20110313162
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Application
    Filed: August 29, 2011
    Publication date: December 22, 2011
    Applicant: National Tsing Hua University
    Inventors: Yun CHI, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Patent number: 8030490
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: October 4, 2011
    Assignee: National Tsing Hua University
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Publication number: 20080217582
    Abstract: A new class of luminescent iridium(III) complexes, luminescent material and organic electroluminescent device thereof had been disclosed. The novel luminescent iridium(III) complexes comprises the formula [(C?N)2Ir(P?O)] with 2-(diphenylphosphino)phenolate as the ancillary chelate. The iridium complexes of the present invention can be used as the red, blue or green-emitting dopants. These luminescent materials can be applied in the fabrication of light-emitting layer of organic electroluminescent devices and providing the high efficiently red, blue or green light organic electroluminescent devices of commercial pursuits.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 11, 2008
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang
  • Publication number: 20080161568
    Abstract: The present invention discloses a phosphorescent tris-chelated transition metal complex comprising i) two identical non-conjugated cyclometalated ligands being incorporated into a coordination sphere thereof with a transition metal, and one ligated chromophore being incorporated into the coordination sphere; or ii) one non-conjugated cyclometalated ligand forming a coordination sphere thereof with a transition metal, and two ligated chromophores being incorporated into the coordination sphere, wherein the metal is iridium, platinum, osmium or ruthenium, and the ligated chromophore possesses a relatively lower energy gap in comparison with that of the non-conjugated cyclometalated ligand, the latter afforded an effective barrier for inhibiting the ligand-to-ligand charge transfer process, so that a subsequent radiative decay from an excited state of these transition complexes will be confined to the single ligated chromophore.
    Type: Application
    Filed: December 7, 2007
    Publication date: July 3, 2008
    Applicant: YUN CHI
    Inventors: Yun Chi, Pi-Tai Chou, Yi-Hwa Song, Yuan-Chieh Chiu, Chiung-Fang Chang