Patents by Inventor Toyomi FUJISAWA

Toyomi FUJISAWA 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: 20240074973
    Abstract: The present invention provides a pharmaceutical composition for application to the skin comprising epinastine or a salt thereof in a concentration of 0.05 to 1% (w/w) as an active ingredient which can maintain the concentration of the active ingredient for a long time even at lower concentrations.
    Type: Application
    Filed: December 23, 2021
    Publication date: March 7, 2024
    Inventors: Naoki OGURA, Yu KAJIWARA, Koushi FUJISAWA, Yoshihiko ESAKI, Koji SAKANAKA, Toyomi FUJISAWA, Yuko TONE
  • Publication number: 20240058356
    Abstract: The present invention provides a pharmaceutical composition for transdermal administration comprising epinastine or a salt thereof as an active ingredient which can maintain the effective concentration of epinastine or a salt thereof in an ocular tissue and stabilize epinastine or a salt thereof in the pharmaceutical composition for a long time.
    Type: Application
    Filed: December 23, 2021
    Publication date: February 22, 2024
    Inventors: Toyomi FUJISAWA, Hiroyuki IKEDA
  • Publication number: 20230145529
    Abstract: The present invention relates to an ophthalmic aqueous composition containing a silver salt, and filled in a container made of a polyester-based resin, or a container made of a polyolefin-based resin excluding polypropylene. Besides, the present invention also relates to an ophthalmic preservative containing a silver salt, and filled in a container made of a polyester-based resin or a container made of a polyolefin-based resin excluding polypropylene, and a method for imparting, to an ophthalmic aqueous composition, preservative efficacy satisfying a criterion of Preservatives-Effectiveness Tests of The Japanese Pharmacopoeia, including adding a silver salt to the ophthalmic aqueous composition, and filling the ophthalmic aqueous composition in a container made of a polyester-based resin or a container made of a polyolefin-based resin excluding polypropylene.
    Type: Application
    Filed: February 26, 2021
    Publication date: May 11, 2023
    Applicant: SANTEN PHARMACEUTICAL CO., LTD.
    Inventors: Yusuke MOMOKAWA, Maki IIDA, Hiroyuki ASADA, Toyomi FUJISAWA
  • Publication number: 20230055121
    Abstract: The purpose of the present invention is to provide an aqueous suspension composition comprising poorly water-soluble sirolimus or a salt thereof for ophthalmology, in particular, used for topical administration, such as a less invasive eye drop. The present invention is an ophthalmic aqueous suspension composition comprising sirolimus or a salt thereof and a surfactant, wherein the aqueous suspension composition has a pH of 4 to 6.
    Type: Application
    Filed: December 25, 2020
    Publication date: February 23, 2023
    Applicant: SANTEN PHARMACEUTICAL CO., LTD.
    Inventors: Toyomi FUJISAWA, Ayaka AKUTAGAWA
  • Patent number: 11324829
    Abstract: The present invention addresses the problem of providing a novel application of meglumine or a salt thereof. The present invention is an antiseptic agent consisting of meglumine or a salt thereof, and a pharmaceutical composition comprising the antiseptic agent according to the present invention, and pertaining to: a pharmaceutical composition which does not comprise benzalkonium chloride and which is placed in a reusable container; a product that comprises the pharmaceutical composition comprising the antiseptic agent according to the present invention and a reusable container; and a method of improving the antiseptic effect of the pharmaceutical composition by comprising meglumine or a salt thereof in the pharmaceutical composition that has been placed in the reusable container.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 10, 2022
    Assignee: SANTEN PHARMACEUTICAL CO., LTD.
    Inventors: Toyomi Fujisawa, Koji Sakanaka, Shinya Umezaki
  • Publication number: 20210267885
    Abstract: Disclosed herein is an aqueous composition comprising 0.001-0.1% (w/v) atropine or a salt thereof, a water-soluble polymer, and buffer (I), which is at a pH range of 6 or lower, wherein the buffer (I) is at least one selected from the group consisting of a phosphate buffer, an aminocarboxylate buffer, a carbonate buffer, an acetate buffer, a tartrate buffer, a borate buffer, and trometamol.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 2, 2021
    Inventors: Donald TAN, Roger BEUERMAN, Hiroyuki ASADA, Kyohei TAKAHASHI, Koji SAKANAKA, Takashi MORIMOTO, Toyomi FUJISAWA
  • Patent number: 11090296
    Abstract: The present invention relates to an ophthalmic depot preparation comprising benzyl benzoate and/or benzyl alcohol and polyethylene glycol and/or dimethylsulfoxide, wherein the volume ratio of benzyl benzoate and/or benzyl alcohol to polyethylene glycol and/or dimethylsulfoxide in the ophthalmic depot preparation is 75:25 to 25:75, and the total amount of benzyl benzoate and/or benzyl alcohol and polyethylene glycol and/or dimethylsulfoxide contained is 50% (w/w) or more.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: August 17, 2021
    Assignee: SANTEN PHARMACEUTICAL CO., LTD.
    Inventors: Komei Okabe, Toyomi Fujisawa, Kazuhito Yamada
  • Publication number: 20200147222
    Abstract: The present invention addresses the problem of providing a novel application of meglumine or a salt thereof. The present invention is an antiseptic agent consisting of meglumine or a salt thereof, and a pharmaceutical composition comprising the antiseptic agent according to the present invention, and pertaining to: a pharmaceutical composition which does not comprise benzalkonium chloride and which is placed in a reusable container; a product that comprises the pharmaceutical composition comprising the antiseptic agent according to the present invention and a reusable container; and a method of improving the antiseptic effect of the pharmaceutical composition by comprising meglumine or a salt thereof in the pharmaceutical composition that has been placed in the reusable container.
    Type: Application
    Filed: March 13, 2017
    Publication date: May 14, 2020
    Applicant: Santen Pharmaceutical Co., Ltd.
    Inventors: Toyomi Fujisawa, Koji Sakanaka, Shinya Umezaki
  • Publication number: 20180042907
    Abstract: The present invention relates to an ophthalmic depot preparation comprising benzyl benzoate and/or benzyl alcohol and polyethylene glycol and/or dimethylsulfoxide, wherein the volume ratio of benzyl benzoate and/or benzyl alcohol to polyethylene glycol and/or dimethylsulfoxide in the ophthalmic depot preparation is 75:25 to 25:75, and the total amount of benzyl benzoate and/or benzyl alcohol and polyethylene glycol and/or dimethylsulfoxide contained is 50% (w/w) or more.
    Type: Application
    Filed: March 17, 2016
    Publication date: February 15, 2018
    Applicant: SANTEN PHARMACEUTICAL CO., LTD
    Inventors: Komei OKABE, Toyomi FUJISAWA, Kazuhito YAMADA