Patents Assigned to CHEMAS CO., LTD.
  • PREVENTIVE OR THERAPEUTIC PHARMACEUTICAL COMPOSITION FOR CORONAVIRUS INFECTION COMPRISING TETRAARSENIC HEXOXIDE
    Publication number: 20230181632
    Abstract: Disclosed herein is a pharmaceutical composition comprising tetraarsenic hexoxide as an active ingredient. Having excellent antiviral activity against coronaviruses, the pharmaceutical composition can be advantageously applied to the prevention or treatment of coronavirus diseases.
    Type: Application
    Filed: April 8, 2021
    Publication date: June 15, 2023
    Applicant: CHEMAS CO., LTD.
    Inventors: Ill Ju BAE, Seong Jin KIM, Kwang Soo LYOO, Kyung Min YANG, Zhaoyan WU, Min Jung SON, Kyoungwha PANG
  • Pharmaceutical composition for preventing or treating cancer, comprising tetraarsenic hexoxide crystalline polymorph
    Patent number: 11191779
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating cancer and a method for producing same, the composition comprising tetraarsenic hexoxide in which the content of tetraarsenic hexoxide crystalline polymorph a (As4O6-a) is 99% or more. The composition of the present invention exhibits an excellent cancer cell proliferation inhibition effect and thus can be useful as an anticancer drug.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: December 7, 2021
    Assignee: CHEMAS CO., LTD.
    Inventors: Ill Ju Bae, Zenglin Lian
  • Pharmaceutical composition for treating liver cancer, comprising tetraarsenic hexoxide crystalline polymorph
    Patent number: 11154530
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating liver cancer and a method for producing same, the composition comprising tetraarsenic hexoxide in which the content of tetraarsenic hexoxide crystalline polymorph a (As4O6-a) is 99% or more. The composition of the present invention exhibits an excellent cancer cell proliferation inhibition effect and thus can be useful as an anticancer drug.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: October 26, 2021
    Assignee: CHEMAS CO., LTD.
    Inventors: Ill Ju Bae, Zenglin Lian
  • PHARMACEUTICAL COMPOSITION FOR PREVENTING OR TREATING LIVER CANCER, COMPRISING TETRAARSENIC HEXOXIDE CRYSTALLINE POLYMORPH
    Publication number: 20200069635
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating liver cancer and a method for producing same, the composition comprising tetraarsenic hexoxide in which the content of tetraarsenic hexoxide crystalline polymorph a (As4O6-a) is 99% or more. The composition of the present invention exhibits an excellent cancer cell proliferation inhibition effect and thus can be useful as an anticancer drug.
    Type: Application
    Filed: December 4, 2017
    Publication date: March 5, 2020
    Applicant: CHEMAS CO., LTD.
    Inventors: Ill Ju BAE, Zenglin LIAN
  • Pharmaceutical composition for preventing or treating breast cancer including crystalline polymorph of tetraarsenic hexoxide, and method for producing same
    Patent number: 10525079
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating breast cancer which includes tetraarsenic hexoxide in which a crystalline polymorph a(As4O6-a), of tetraarsenic hexoxide is 99% or higher, and to a method for producing the same. The composition of the present invention exhibits excellent effects of inhibiting the proliferation and metastasis of cancer cells, and thus can be usefully used as an anticancer agent.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: January 7, 2020
    Assignee: CHEMAS CO., LTD.
    Inventors: Ill Ju Bae, Zenglin Lian
  • PHARMACEUTICAL COMPOSITION FOR PREVENTING OR TREATING CANCER, COMPRISING TETRAARSENIC HEXOXIDE CRYSTALLINE POLYMORPH
    Publication number: 20200000846
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating cancer and a method for producing same, the composition comprising tetraarsenic hexoxide in which the content of tetraarsenic hexoxide crystalline polymorph a (As4O6-a) is 99% or more. The composition of the present invention exhibits an excellent cancer cell proliferation inhibition effect and thus can be useful as an anticancer drug.
    Type: Application
    Filed: December 4, 2017
    Publication date: January 2, 2020
    Applicant: CHEMAS CO., LTD.
    Inventors: Ill Ju BAE, Zenglin LIAN
  • Pharmaceutical composition for preventing or treating brain cancer including crystal polymorph of tetraarsenic hexoxide, and method for preparing same
    Patent number: 10493100
    Abstract: The present invention relates to a pharmaceutical composition which is for preventing or treating brain cancer and includes at least 99% of a crystal polymorph of tetraarsenic hexoxide a (As4O6-a), and to a method for preparing same. A composition according to the present invention exhibits excellent cancer cell proliferation inhibition and metastasis inhibition effects, and thus may be usefully used as an anti-cancer agent.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: December 3, 2019
    Assignee: CHEMAS CO., LTD.
    Inventors: Ill Ju Bae, Zenglin Lian
  • PHARMACEUTICAL COMPOSITION FOR PREVENTING OR TREATING BREAST CANCER INCLUDING CRYSTALLINE POLYMORPH OF TETRAARSENIC HEXOXIDE, AND METHOD FOR PRODUCING SAME
    Publication number: 20190328780
    Abstract: The present invention relates to a pharmaceutical composition for preventing or treating breast cancer which includes tetraarsenic hexoxide in which a crystalline polymorph a(As4O6-a), of tetraarsenic hexoxide is 99% or higher, and to a method for producing the same. The composition of the present invention exhibits excellent effects of inhibiting the proliferation and metastasis of cancer cells, and thus can be usefully used as an anticancer agent.
    Type: Application
    Filed: November 17, 2017
    Publication date: October 31, 2019
    Applicant: CHEMAS CO., LTD.
    Inventors: Ill Ju BAE, Zenglin LIAN
  • PHARMACEUTICAL COMPOSITION FOR PREVENTING OR TREATING BRAIN CANCER INCLUDING CRYSTAL POLYMORPH OF TETRAARSENIC HEXOXIDE, AND METHOD FOR PREPARING SAME
    Publication number: 20190328779
    Abstract: The present invention relates to a pharmaceutical composition which is for preventing or treating brain cancer and includes at least 99% of a crystal polymorph of tetraarsenic hexoxide a (As4O6-a), and to a method for preparing same. A composition according to the present invention exhibits excellent cancer cell proliferation inhibition and metastasis inhibition effects, and thus may be usefully used as an anti-cancer agent.
    Type: Application
    Filed: September 7, 2017
    Publication date: October 31, 2019
    Applicant: CHEMAS CO., LTD.
    Inventors: Ill Ju BAE, Zenglin LIAN