Patents Assigned to ITOCHU CHEMICAL FRONTIER CORPORATION
  • Patent number: 11793766
    Abstract: [Problem] If lidocaine is composed of non-aqueous patch, the adhesive power of the preparation tends to get lower, as the composition amount of lidocaine is higher. It is popular to solve lidocaine in dissolving agent in order to compose lidocaine in patch and release effective amount into skin. However, if the amount of dissolving agent gets higher, the adhesive power gets extremely lower, so that an long-time attachment is difficult. [Solution] A non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent which are contained in a base of plaster, the plaster being hold by a support, of which strength of 50% stretched to longitudinal direction is less than 2000 g/50 mm and of biaxially-oriented stretch cloth.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: October 24, 2023
    Assignees: ITOCHU CHEMICAL FRONTIER Corporation;, OISHI KOSEIDO CO., LTD.
    Inventors: Tatsuya Mori, Naoyuki Saida
  • Patent number: 11786455
    Abstract: Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: October 17, 2023
    Assignees: ITOCHU CHEMICAL FRONTIER Corporation, OISHI KOSEIDO CO., LTD.
    Inventors: Tatsuya Mori, Naoyuki Saida
  • Patent number: 11278623
    Abstract: Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: March 22, 2022
    Assignees: ITOCHU CHEMICAL FRONTIER Corporation, OISHI KOSEIDO CO., LTD.
    Inventors: Tatsuya Mori, Naoyuki Saida
  • Patent number: 10765749
    Abstract: Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: September 8, 2020
    Assignees: ITOCHU CHEMICAL FRONTIER Corporation, OISHI KOSEIDO CO., LTD.
    Inventors: Tatsuya Mori, Naoyuki Saida
  • Patent number: 10765640
    Abstract: [Problem] If lidocaine is composed of non-aqueous patch, the adhesive power of the preparation tends to get lower, as the composition amount of lidocaine is higher. It is popular to solve lidocaine in dissolving agent in order to compose lidocaine in patch and release effective amount into skin. However, if the amount of dissolving agent gets higher, the adhesive power gets extremely lower, so that an long-time attachment is difficult. [Solution] A non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent which are contained in a base of plaster, the plaster being hold by a support, of which strength of 50% stretched to longitudinal direction is less than 2,000 g/50 mm and of biaxially-oriented stretch cloth.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: September 8, 2020
    Assignees: ITOCHU CHEMICAL FRONTIER Corporation, OISHI KOSEIDO CO., LTD.
    Inventors: Tatsuya Mori, Naoyuki Saida
  • Patent number: 9931403
    Abstract: Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: April 3, 2018
    Assignees: Itochu Chemical Frontier Corporation, Oishi Koseido Co., Ltd.
    Inventors: Tatsuya Mori, Naoyuki Saida
  • Patent number: 9925264
    Abstract: Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: March 27, 2018
    Assignees: Itochu Chemical Frontier Corporation, Oishi Koseido Co., Ltd.
    Inventors: Tatsuya Mori, Naoyuki Saida
  • Publication number: 20170304449
    Abstract: Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
    Type: Application
    Filed: July 11, 2017
    Publication date: October 26, 2017
    Applicants: ITOCHU CHEMICAL FRONTIER CORPORATION, OISHI KOSEIDO CO., LTD.
    Inventors: TATSUYA MORI, NAOYUKI SAIDA
  • Publication number: 20160184432
    Abstract: Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
    Type: Application
    Filed: March 9, 2016
    Publication date: June 30, 2016
    Applicants: Itochu Chemical Frontier Corporation, Oishi Koseido Co., Ltd.
    Inventors: Tatsuya Mori, Naoyuki Saida
  • Publication number: 20140356412
    Abstract: [Problem] If lidocaine is composed of non-aqueous patch, the adhesive power of the preparation tends to get lower, as the composition amount of lidocaine is higher. It is popular to solve lidocaine in dissolving agent in order to compose lidocaine in patch and release effective amount into skin. However, if the amount of dissolving agent gets higher, the adhesive power gets extremely lower, so that an long-time attachment is difficult. [Solution] A non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent which are contained in a base of plaster, the plaster being hold by a support, of which strength of 50% stretched to longitudinal direction is less than 2,000 g/50 mm and of biaxially-oriented stretch cloth.
    Type: Application
    Filed: September 27, 2011
    Publication date: December 4, 2014
    Applicants: OISHI KOSEIDO CO., LTD., ITOCHU CHEMICAL FRONTIER CORPORATION
    Inventors: Tatsuya Mori, Naoyuki Saida
  • Publication number: 20140171509
    Abstract: Non-aqueous patches comprising lidocaine, which is not dissolved and is present in a crystalline state, have poor permeability to the skin. Therefore, non-aqueous patches have a high concentration of lidocaine. It is pointed out that lidocaine has an adverse effect on the heart. Prolonged use of a high concentration of lidocaine causes side effects, such as shock, rubor, and irritating sensation. External preparations comprising more than 5 mass % of lidocaine are designated as powerful drugs, and cannot be used as household (nonprescription) medicine. Provided is a non-aqueous patch that is effective to relieve muscle pain, the non-aqueous patch comprising lidocaine and/or its reactant, and a dissolving agent composed of an organic acid and a polyalcohol, which are contained in a base.
    Type: Application
    Filed: May 10, 2011
    Publication date: June 19, 2014
    Applicants: OISHI KOSEIDO CO., LTD., ITOCHU CHEMICAL FRONTIER CORPORATION
    Inventors: Tatsuya Mori, Naoyuki Saida