Patents by Inventor Min-Ruei Tsai

Min-Ruei Tsai 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).

  • Siloxane-containing trianhydride, polymer, liquid crystal alignment agent, liquid crystal alignment film, and liquid crystal display device
    Patent number: 9464233
    Abstract: Provided is a siloxane-containing trianhydride having a structure shown in formula 1: wherein R1 to R7, D1 to D3, and each G are as defined in the specification.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: October 11, 2016
    Assignee: Daxin Materials Corporation
    Inventors: Po-Yang Wang, Yi-Chun Lin, Min-Ruei Tsai
  • SILOXANE-CONTAINING TRIANHYDRIDE, POLYMER, LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20150252266
    Abstract: Provided is a siloxane-containing trianhydride having a structure shown in formula 1: wherein R1 to R7, D1 to D3, and each G are as defined in the specification.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 10, 2015
    Inventors: Po-Yang Wang, Yi-Chun Lin, Min-Ruei Tsai
  • Liquid crystal alignment solution
    Patent number: 8545946
    Abstract: A liquid crystal alignment solution is provided, including at least one polymer selected from the group consisting of a polyamide acid-polyamide acid polymer represented by formula (A), a polyimide-polyamide acid polymer represented by formula (B) and a polyimide-polyimide polymer represented by formula (C), as defined in the contexts.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: October 1, 2013
    Assignee: Daxin Materials Corporation
    Inventors: Min-Ruei Tsai, Wen-Chung Chu, Chia-Wen Chang, Ming-Chih Lai
  • Purification method of polyamic acid resin and polyimide resin
    Patent number: 8217135
    Abstract: Purification methods of polyamic acid resin and polyimide resin are provided. The purification methods of polyamic acid resin or polyimide resin includes providing a polyamic acid resin or a polyimide resin containing metal ion impurities. Thereafter, a cation exchange resin is used to react with the polyamic acid resin or the polyimide resin in order to remove the metal ion impurities therein, and a water content in the polyamic acid resin or the polyimide resin is removed to purify the polyamic acid resin or polyimide resin.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: July 10, 2012
    Assignee: Daxin Materials Corporation
    Inventor: Min-Ruei Tsai
  • PURIFICATION METHOD OF POLYAMIC ACID RESIN AND POLYIMIDE RESIN
    Publication number: 20110160423
    Abstract: Purification methods of polyamic acid resin and polyimide resin are provided. The purification methods of polyamic acid resin or polyimide resin includes providing a polyamic acid resin or a polyimide resin containing metal ion impurities. Thereafter, a cation exchange resin is used to react with the polyamic acid resin or the polyimide resin in order to remove the metal ion impurities therein, and a water content in the polyamic acid resin or the polyimide resin is removed to purify the polyamic acid resin or polyimide resin.
    Type: Application
    Filed: December 30, 2010
    Publication date: June 30, 2011
    Applicant: DAXIN MATERIALS CORPORATION
    Inventor: Min-Ruei Tsai
  • Liquid crystal alignment solution
    Patent number: 7914863
    Abstract: A liquid crystal alignment solution is provided. The liquid crystal alignment solution includes a first polyimide-polyamide acid and a second polyimide-polyamide acid. The first polyimide-polyamide acid is represented by formula (A), and the second polyimide-polyamide acid is represented by formula (B), in which T1, T2, T3 and T4 are each independently a tetravalent residue of a tetracarboxylic acid dianhydride; D1, D2, D3 and D4 are each independently a divalent residue of a diamine; and m, n, p and q are each independently an positive integer, wherein m/(m+n)?0.5 and p/(p+q)?0.5.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: March 29, 2011
    Assignee: Daxin Material Corporation
    Inventors: Ming-Chih Lai, Wen-Chung Chu, Chin-Wen Chang, Min-Ruei Tsai
  • LIQUID CRYSTAL ALIGNMENT SOLUTION
    Publication number: 20100243955
    Abstract: A liquid crystal alignment solution is provided. The liquid crystal alignment solution includes at least one polymer selected from the group consisting of a polyamide acid-polyamide acid polymer represented by formula (A), a polyimide-polyamide acid polymer represented by formula (B) and a polyimide-polyimide polymer represented by formula (C), in which T1 and T2 are each independently a tetravalent organic group; m<n; p<q; r<s; and at least one of D1 and D2 is selected from the group consisting of formulae (1) to (15).
    Type: Application
    Filed: March 25, 2010
    Publication date: September 30, 2010
    Applicant: DAXIN MATERIALS CORPORATION
    Inventors: Min-Ruei Tsai, Wen-Chung Chu, Chia-Wen Chang, Ming-Chih Lai
  • LIQUID CRYSTAL ALIGNMENT SOLUTION
    Publication number: 20090194737
    Abstract: A liquid crystal alignment solution is provided. The liquid crystal alignment solution includes a first polyimide-polyamide acid and a second polyimide-polyamide acid. The first polyimide-polyamide acid is represented by formula (A), and the second polyimide-polyamide acid is represented by formula (B), in which T1, T2, T3 and T4 are each independently a tetravalent residue of a tetracarboxylic acid dianhydride; D1, D2, D3 and D4 are each independently a divalent residue of a diamine; and m, n, p and q are each independently an positive integer, wherein m/(m+n)?0.5 and p/(p+q)?0.5.
    Type: Application
    Filed: January 21, 2009
    Publication date: August 6, 2009
    Applicant: Daxin Material Corporation
    Inventors: Ming-Chih Lai, Wen-Chung Chu, Chin-Wen Chang, Min-Ruei Tsai