Patents by Inventor Pei-Ching Chang

Pei-Ching 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).

  • Publication number: 20240117297
    Abstract: A p-aminobenzoic acid-producing microorganism is provided. The p-aminobenzoic acid-producing microorganism is obtained by a method for preparing a p-aminobenzoic acid-producing microorganism. The method for preparing a p-aminobenzoic acid-producing microorganism includes (a) performing an acclimation process on a source microorganism with at least one sulfonamide antibiotic to obtain at least one acclimatized microorganism and (b) screening out at least one p-aminobenzoic acid-producing microorganism from the at least one acclimatized microorganism, wherein the at least one p-aminobenzoic acid-producing microorganism has a higher p-aminobenzoic acid titer than the source microorganism.
    Type: Application
    Filed: December 29, 2022
    Publication date: April 11, 2024
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Pei-Ching CHANG, Jhong-De LIN, Ya-Lin LIN, Hung-Yu LIAO, Hsiang Yuan CHU, Jie-Len HUANG
  • Publication number: 20240065664
    Abstract: A physiological signal measurement device is disclosed. In some implementations, the physiological signal measurement device includes a fixing element, a rack, a first sensor, and a second sensor. The fixing element is configured to be fixed on a limb of a user. The rack is configured to engage the fixing element and includes a first end and a second end distal to the first end. The first sensor is disposed on the first end of the rack. The sensor is disposed on the second end of the rack. The first end of the rack has a first stiffness, the second end of the rack has a second stiffness, and the first stiffness is higher than the second stiffness.
    Type: Application
    Filed: August 24, 2022
    Publication date: February 29, 2024
    Inventors: CHENG YAN GUO, KUAN JEN WANG, PEI-MING CHIEN, HAO-CHING CHANG
  • Publication number: 20240071504
    Abstract: A memory device is provided, including a memory array, a driver circuit, and recover circuit. The memory array includes multiple memory cells. Each memory cell is coupled to a control line, a data line, and a source line and, during a normal operation, is configured to receive first and second voltage signals. The driver circuit is configured to output at least one of the first voltage signal or the second voltage signal to the memory cells. The recover circuit is configured to output, during a recover operation, a third voltage signal, through the driver circuit to at least one of the memory cells. The third voltage signal is configured to have a first voltage level that is higher than a highest level of the first voltage signal or the second voltage signal, or lower than a lowest level of the first voltage signal or the second voltage signal.
    Type: Application
    Filed: August 30, 2022
    Publication date: February 29, 2024
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Pei-Chun LIAO, Yu-Kai CHANG, Yi-Ching LIU, Yu-Ming LIN, Yih WANG, Chieh LEE
  • Publication number: 20230203314
    Abstract: A dye for a material with amide functional groups and a dyeing method of using the same are provided. The dye includes a compound represented by Formula (I) and a solvent. Based on the total weight of the dye of 100 wt %, a content of the compound represented by Formula (I) is 40 wt % to 95 wt %. In Chemical Formula (I), R1, R2 and R3 are each independently H, —OH or —COOH, wherein at least one of R1, R2 and R3 is —OH or —COOH.
    Type: Application
    Filed: December 29, 2021
    Publication date: June 29, 2023
    Applicant: Industrial Technology Research Institute
    Inventors: Jie-Len Huang, Pei-Ching Chang, Chang-Jung Chang, Jhong-De Lin, Ya-Lin Lin, Hung-Yu Liao, Hsiang-Yuan Chu
  • Patent number: 11345818
    Abstract: A dyeing method includes immersing a fiber into a dye for dyeing the fiber, in which the dye includes indigo and indirubin, and the indigo and the indirubin have a weight ratio of 20:1 to 80:1. The indigo in the dye has a concentration of 0.1% o.w.f. to 5% o.w.f. The dyed fiber may simultaneously have high luminance, high color saturation, high strength of colorization, and sufficient colorfastness.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: May 31, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Pei-Ching Chang, Chang-Jung Chang, Ya-Lin Lin, Yu-Ju Lin, Jhong-De Lin, Hsiang-Yuan Chu, Hung-Yu Liao, Jie-Len Huang
  • Patent number: 11008701
    Abstract: The disclosure provides a dyeing method using bio-dye. A first compound containing an X group is reacted with a second compound containing a Y group to form a third compound, in which the X group is selected from the group consisting of an isocyanate group, a carbodiimide group, an aziridinyl group and an epoxy group, the Y group is selected from the group consisting of a hydroxyl group and an amine group, and the second compound is an amine compound and contains two or more Y groups. Cationization of the third compound is carried out with a fourth compound containing a carboxyl group to form a cationic modification agent. A cationic modification treatment is performed on a fiber material by using the cationic modification agent to form a cationized fiber material. Thereafter, a dyeing treatment is performed on the cationized fiber material through a dye solution containing bio-dye to color the cationized fiber material.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: May 18, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Chang-Jung Chang, Pei-Ching Chang, Ya-Lin Lin, Yu-Ju Lin, Jie-Len Huang, Jhong-De Lin, Hsiang-Yuan Chu
  • Patent number: 10975243
    Abstract: A genetically modified microorganism includes: an exogenous nucleic acid sequence encoding naphthalene dioxygenase (NDO), wherein the endogenous icd gene of the genetically modified microorganism is knocked out, in which the endogenous icd gene encodes isocitrate dehydrogenase (IDH), and wherein the genetically modified microorganism is capable of using glutamic acid and/or a salt thereof as a nitrogen source to grow and producing indigo dye.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: April 13, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Pei-Ching Chang, Jhong-De Lin, Chang-Jung Chang, Ya-Lin Lin, Hsiang-Yuan Chu, Jie-Len Huang
  • Publication number: 20200207988
    Abstract: A genetically modified microorganism includes: an exogenous nucleic acid sequence encoding naphthalene dioxygenase (NDO), wherein the endogenous icd gene of the genetically modified microorganism is knocked out, in which the endogenous icd gene encodes isocitrate dehydrogenase (IDH), and wherein the genetically modified microorganism is capable of using glutamic acid and/or a salt thereof as a nitrogen source to grow and producing indigo dye.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 2, 2020
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Pei-Ching CHANG, Jhong-De LIN, Chang-Jung CHANG, Ya-Lin LIN, Hsiang-Yuan CHU, Jie-Len HUANG
  • Publication number: 20190351533
    Abstract: Universal pliers contains: a first jaw, a second jaw, a first lever, a second lever, and a connection extension. The first jaw and the second jaw are rotatably connected, the first lever is one-piece formed on the first jaw, the second lever is rotatably connected on the second jaw, a first end of the actuation extension is rotatably connected on the second lever, a second end of the actuation extension is rotatably connected in the first lever, and the actuation extension includes a bending section. The first lever includes a slide block and a spring which are accommodated on the first lever, a first side of the slide block abuts against the actuation extension, a first end of the spring is biased against a second side of the slide block, and a bottom of the first lever is screwed with a screw bolt which contacts with the spring.
    Type: Application
    Filed: March 18, 2019
    Publication date: November 21, 2019
    Inventor: PEI-CHING CHANG
  • Patent number: 9970016
    Abstract: A genetic engineered bacteria without or comprising a plurality of important metabolic enzyme related genes is provided. When the by-product or waste of fruit and vegetable is used as the culture medium, a large quantity of succinic acid or lactic acid can be produced via fermentation. A method of producing succinic acid and lactic acid using the genetic engineered bacteria is also provided.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: May 15, 2018
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Pei-Ching Chang, Guang-Way Jang, Hsi-Yen Hsu, Hsiang-Yuan Chu, Jhong-De Lin, Ya-Lin Lin
  • Publication number: 20170137829
    Abstract: A genetic engineered bacteria without or comprising a plurality of important metabolic enzyme related genes is provided. When the by-product or waste of fruit and vegetable is used as the culture medium, a large quantity of succinic acid or lactic acid can be produced via fermentation. A method of producing succinic acid and lactic acid using the genetic engineered bacteria is also provided.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 18, 2017
    Applicant: Industrial Technology Research Institute
    Inventors: Pei-Ching Chang, Guang-Way Jang, Hsi-Yen Hsu, Hsiang-Yuan Chu, Jhong-De Lin, Ya-Lin Lin
  • Patent number: 9328362
    Abstract: Described herein is a fusion polypeptide containing an aconitase and a cis-aconitate decarboxylase. Also described are a genetically modified cell expressing the fusion polypeptide and a method of using the cell to produce itaconate.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 3, 2016
    Assignee: Industrial Technology Research Institute
    Inventors: Li-Feng Lee, Pei-Ching Chang, Hsiang-Yuan Chu
  • Publication number: 20150267230
    Abstract: Described herein is a fusion polypeptide containing an aconitase and a cis-aconitate decarboxylase. Also described are a genetically modified cell expressing the fusion polypeptide and a method of using the cell to produce itaconate.
    Type: Application
    Filed: March 19, 2015
    Publication date: September 24, 2015
    Inventors: Li-Feng Lee, Pei-Ching Chang, Hsiang-Yuan Chu
  • Patent number: 8338158
    Abstract: Cis-aconitate decarboxylase mutants having one or more mutations in a C-terminal region as compared with a wild-type cis-aconitate decarboxylase of Aspergillus terreus.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: December 25, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Hsin-Ju Hsieh, Pei-Ching Chang, Kelly Teng
  • Patent number: 8143036
    Abstract: Genetically modified microorganisms that produce itaconic acid at high yields and uses thereof.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: March 27, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: James C. Liao, Pei-Ching Chang
  • Publication number: 20100330632
    Abstract: Cis-aconitate decarboxylase mutants having one or more mutations in a C-terminal region as compared with a wild-type cis-aconitate decarboxylase of Aspergillus terreus.
    Type: Application
    Filed: November 24, 2009
    Publication date: December 30, 2010
    Applicant: Industrial Technology Research Institute
    Inventors: Hsin-Ju Hsieh, Pei-Ching Chang, Kelly Teng
  • Publication number: 20100330631
    Abstract: Cis-aconitate decarboxylase mutants having one or more mutations in a C-terminal region as compared with a wild-type cis-aconitate decarboxylase of Aspergillus terreus.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: Industrial Technology Research Institute
    Inventors: Hsin-Ju Hsieh, Pei-Ching Chang, Kelly Teng
  • Publication number: 20100285546
    Abstract: Genetically modified microorganisms that produce itaconic acid at high yields and uses thereof.
    Type: Application
    Filed: May 11, 2009
    Publication date: November 11, 2010
    Applicant: Industrial Technology Research Institute
    Inventors: James C. Liao, Pei-Ching Chang
  • Publication number: 20070066816
    Abstract: Disclosed is a method for producing a double-crosslinked hyaluronate material. A hyaluronic acid or a salt thereof is sequentially reacted with an epoxide compound and a carbodiimide compound to produce a more biodegradation-resistant hyaluronate material. The HA acid is preferably reacted with the carbodiimide first, and more preferably in a mixed solvent including water and an organic solvent, such as ketone.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 22, 2007
    Applicant: Industrial Technology Research Institute
    Inventors: Shiao-Wen Tsai, Chiung-Lin Yang, Jui-Hsiang Chen, Pei-ching Chang, Li-Ting Su, Shu-Hua Jan
  • Publication number: 20050142660
    Abstract: The invention provides a conditioned medium that enhances the survival and/or proliferation of Schwann cells in cell culture, and a cell line useful for production of such medium. The cell line used in the invention is a differentiated NTera2/D1 (NT2) cell line.
    Type: Application
    Filed: November 18, 2004
    Publication date: June 30, 2005
    Applicant: Industrial Technology Research Institute
    Inventors: Wan-Shiun Lou, Yu-Hua Chen, Pei-Ching Chang, Hsin-Hsin Shen