Patents by Inventor Ya-Shan Cheng

Ya-Shan Cheng 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: 11930663
    Abstract: A display panel includes a first substrate, pixel structures, a first common pad, a second substrate, a second common electrode, a display medium and a conductive particle. The pixel structures are disposed on an active area of the first substrate. The first common pad is disposed on a peripheral area of the first substrate, and is electrically connected to first common electrodes of the pixel structures. The second common electrode is disposed on the second substrate. The conductive particle is disposed on the first common pad, and is electrically connected to the first common pad and the second common electrode. The conductive particle includes a core and a conductive film disposed on a surface of the core, where the conductive film has a main portion and raised portions, and a film thickness of each of the raised portions is greater than a film thickness of the main portion.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: March 12, 2024
    Assignee: Au Optronics Corporation
    Inventors: Bo-Chen Chen, Yun-Ru Cheng, Ya-Ling Hsu, Chia-Hsuan Pai, Cheng-Wei Huang, Wei-Shan Chao
  • Patent number: 11499660
    Abstract: A hose connecting device has a connector, an inner locking ring, an outer connector and a tubal body. The connector has an insertion section and an engaging section, the engaging section has a size greater than the insertion section, and the engaging section further has a stopping ring at a top end. The inner locking ring is jacketed onto the engaging section of the connector and abutting the stopping ring of the connector. The inner locking ring has an outer threaded section and an abutting portion disposed at a bottom end of the inner locking ring. The outer connector has one of a female connector and a male connector, and a channel, the channel has a positioning step at a middle portion, an inner threaded section disposed below the positioning step of the channel. The tubal body is jacketed onto the insertion section of the connector.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: November 15, 2022
    Inventor: Ya-Shan Cheng
  • Publication number: 20220107041
    Abstract: A hose connecting device has a connector, an inner locking ring, an outer connector and a tubal body. The connector has an insertion section and an engaging section, the engaging section has a size greater than the insertion section, and the engaging section further has a stopping ring at a top end. The inner locking ring is jacketed onto the engaging section of the connector and abutting the stopping ring of the connector. The inner locking ring has an outer threaded section and an abutting portion disposed at a bottom end of the inner locking ring. The outer connector has one of a female connector and a male connector, and a channel, the channel has a positioning step at a middle portion, an inner threaded section disposed below the positioning step of the channel. The tubal body is jacketed onto the insertion section of the connector.
    Type: Application
    Filed: October 1, 2020
    Publication date: April 7, 2022
    Inventor: Ya-Shan Cheng
  • Patent number: 10563185
    Abstract: A beta-glucosidase having improved enzymatic activity is disclosed. The amino acid sequence of the beta-glucosidase is a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of tyrosine at position 286 with phenylalanine, or a substitution of asparagine at position 639 with glutamate.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: February 18, 2020
    Assignee: DONGGUAN APAC BIOTECHNOLOGY CO., LTD.
    Inventors: Hui-Lin Lai, Ya-Shan Cheng, Tzu-Hui Wu, Cheng-Yen Lin, Ting-Yung Huang, I-Hsuan Lin, Cheng-Bin Zheng
  • Patent number: 10385346
    Abstract: A xylosidase having improved enzymatic activity is disclosed. The amino acid sequence of the xylosidase is a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of phenylalanine at position 35 with glutamate, and/or a substitution of glutamine at position 41 with histidine.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: August 20, 2019
    Assignee: DONGGUAN APAC BIOTECHNOLOGY CO., LTD.
    Inventors: Ya-Shan Cheng, Tzu-Hui Wu, Cheng-Yen Lin, Hui-Lin Lai, Cheng-Bin Zheng, Ting-Yung Huang, I-Hsuan Lin, Jian-Wen Huang, Chun-Chi Chen, Rey-Ting Guo
  • Publication number: 20190119687
    Abstract: A xylosidase having improved enzymatic activity is disclosed. The amino acid sequence of the xylosidase is a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of phenylalanine at position 35 with glutamate, and/or a substitution of glutamine at position 41 with histidine.
    Type: Application
    Filed: October 11, 2018
    Publication date: April 25, 2019
    Inventors: Ya-Shan Cheng, Tzu-Hui Wu, Cheng-Yen Lin, Hui-Lin Lai, Cheng-Bin Zheng, Ting-Yung Huang, I-Hsuan Lin, Jian-Wen Huang, Chun-Chi Chen, Rey-Ting Guo
  • Patent number: 10233430
    Abstract: A glucose oxidase having improved thermostability is disclosed. The amino acid sequence of the glucose oxidase is a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of glutamate at position 129 with proline, and/or a substitution of glutamine at position 243 with valine.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: March 19, 2019
    Assignee: DONGGUAN APAC BIOTECHNOLOGY CO.,LTD.
    Inventors: Ya-Shan Cheng, Tzu-Hui Wu, Cheng-Yen Lin, Hui-Lin Lai, Cheng-Bin Zheng, Ting-Yung Huang, I-Hsuan Lin, Jian-Wen Huang, Chun-Chi Chen, Rey-Ting Guo
  • Patent number: 10011822
    Abstract: A phytase having improved thermostability is disclosed. The phytase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is one of mutations A to D. The mutation A is to substitute amino acids at positions 143 and 262 with cysteine, the mutation B is to substitute amino acids at positions 259 and 312 with cysteine, the mutation C is to substitute amino acids at positions 205 and 257 with cysteine, and the mutation D is to substitute amino acids at positions 264 and 309 with cysteine.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: July 3, 2018
    Assignee: DONGGUAN APAC BIOTECHNOLOGY CO., LTD.
    Inventors: Tzu-Hui Wu, Ya-Shan Cheng, Hui-Lin Lai, Cheng-Yen Lin, Tsung-Yu Ko, Jian-Wen Huang, Chun-Chi Chen, Rey-Ting Guo
  • Patent number: 9944915
    Abstract: A cellulase having improved thermostability is disclosed. The cellulase comprises a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is adding a cysteine in N terminal and adding a glycine and a cysteine or adding a proline and a cysteine in C terminal.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: April 17, 2018
    Assignee: DONGGUAN APAC BIOTECHNOLOGY CO., LTD.
    Inventors: Rey-Ting Guo, Ya-Shan Cheng, Jian-Wen Huang, Tzu-Hui Wu, Hui-Lin Lai, Cheng-Yen Lin, Tsung-Yu Ko
  • Patent number: 9809807
    Abstract: A cellulase having improved enzymatic activity is disclosed. The cellulase comprises a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of Tyrosine at position 161 with Histidine.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: November 7, 2017
    Assignee: DONGGUAN APAC BIOTECHNOLOGY CO., LTD.
    Inventors: Rey-Ting Guo, Chun-Chi Chen, Ya-Shan Cheng, Jian-Wen Huang, Tzu-Hui Wu, Hui-Lin Lai, Cheng-Yen Lin, Tsung-Yu Ko
  • Publication number: 20170240872
    Abstract: A phytase having improved thermostability is disclosed. The phytase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is one of mutations A to D. The mutation A is to substitute amino acids at positions 143 and 262 with cysteine, the mutation B is to substitute amino acids at positions 259 and 312 with cysteine, the mutation C is to substitute amino acids at positions 205 and 257 with cysteine, and the mutation D is to substitute amino acids at positions 264 and 309 with cysteine.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 24, 2017
    Inventors: Rey-Ting Guo, Chun-Chi Chen, Ya-Shan Cheng, Tzu-Hui Wu, Jian-Wen Huang, Hui-Lin Lai, Cheng-Yen Lin, Tsung-Yu Ko
  • Publication number: 20170183641
    Abstract: A cellulase having improved thermostability is disclosed. The cellulase comprises a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is adding a cysteine in N terminal and adding a glycine and a cysteine or adding a proline and a cysteine in C terminal.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 29, 2017
    Inventors: Rey-Ting Guo, Ya-Shan Cheng, Jian-Wen Huang, Tzu-Hui Wu, Hui-Lin Lai, Cheng-Yen Lin, Tsung-Yu Ko
  • Patent number: 9650625
    Abstract: A pectinase having improved thermostability is disclosed. The pectinase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of serine at position 181 with phenylalanine, methionine or leucine.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: May 16, 2017
    Assignee: DONGGUAN APAC BIOTECHNOLOGY CO., LTD.
    Inventors: Rey-Ting Guo, Ya-Shan Cheng, Jian-Wen Huang, Tzu-Hui Wu, Hui-Lin Lai, Cheng-Yen Lin, Tsung-Yu Ko
  • Publication number: 20170121699
    Abstract: A pectinase having improved thermostability is disclosed. The pectinase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of serine at position 181 with phenylalanine, methionine or leucine.
    Type: Application
    Filed: October 26, 2016
    Publication date: May 4, 2017
    Inventors: Rey-Ting Guo, Ya-Shan Cheng, Jian-Wen Huang, Tzu-Hui Wu, Hui-Lin Lai, Cheng-Yen Lin, Tsung-Yu Ko
  • Patent number: 9194010
    Abstract: A phytase having improved enzymatic activity is disclosed. The phytase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of Valine at position 90 with Threonine. Alternatively, the phytase has a modified amino acid sequence of SEQ ID NO: 6, wherein the modification is a substitution of Asparagine at position 204 with Alanine or a substitution of Serine at position 206 with Alanine.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: November 24, 2015
    Assignee: DONGGUAN APAC BIOTECHNOLOGY CO., LTD.
    Inventors: Rey-Ting Guo, Tzu-Hui Wu, Ya-Shan Cheng, Jian-Wen Huang, Hui-Lin Lai, Cheng-Yen Lin, Ting-Yung Huang
  • Patent number: 8999695
    Abstract: A ?-mannanase having increased production yield and enzymatic activity is disclosed. The ?-mannanase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of Tyrosine at position 25 with Histidine.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: April 7, 2015
    Assignee: DongGuan APAC Biotechnology Co., Ltd.
    Inventors: Rey-Ting Guo, Jian-Wen Huang, Ya-Shan Cheng, Tzu-Hui Wu, Hui-Lin Lai, Cheng-Yen Lin, Ting-Yung Huang
  • Publication number: 20150031110
    Abstract: A phytase having improved enzymaic activity is disclosed. The phytase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of Valine at position 90 with Threonine. Alternatively, the phytase has a modified amino acid sequence of SEQ ID NO: 6, wherein the modification is a substitution of Asparagine at position 204 with Alanine or a substitution of Serine at position 206 with Alanine.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Inventors: Rey-Ting Guo, Tzu-Hui Wu, Ya-Shan Cheng, Jian-Wen Huang, Hui-Lin Lai, Cheng-Yen Lin, Ting-Yung Huang
  • Publication number: 20140315273
    Abstract: A ?-mannanase having increased enzymaic activity is disclosed. The ?-mannanase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of Tyrosine at position 216 with Tryptophan.
    Type: Application
    Filed: September 5, 2013
    Publication date: October 23, 2014
    Applicant: Dongguan APAC Biotechnology CO., Ltd.
    Inventors: Rey-Ting Guo, Jian-Wen Huang, Ya-Shan Cheng, Tzu-Hui Wu, Hui-Lin Lai, Cheng-Yen Lin, Ting-Yung Huang
  • Patent number: 8865444
    Abstract: A ?-mannanase having increased enzymaic activity is disclosed. The ?-mannanase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of Tyrosine at position 216 with Tryptophan.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: October 21, 2014
    Assignee: Dongguan APAC Biotechnology Co., Ltd.
    Inventors: Rey-Ting Guo, Jian-Wen Huang, Ya-Shan Cheng, Tzu-Hui Wu, Hui-Lin Lai, Cheng-Yen Lin, Ting-Yung Huang
  • Patent number: 8722382
    Abstract: A xylanase having increased enzymaic activity is disclosed. The xylanase has a modified amino acid sequence of SEQ ID NO: 2, wherein Tryptophan at position 125 is substituted with Phenylalanine and Phenylalanine at position 163 is substituted with Tryptophan.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: May 13, 2014
    Assignee: Dongguan APAC Biotechnology Co., Ltd.
    Inventors: Rey-Ting Guo, Ya-Shan Cheng, Jian-Wen Huang, Tzu-Hui Wu, Hui-Lin Lai, Cheng-Yen Lin, Ting-Yung Huang