Patents by Inventor Akiharu Isowaki

Akiharu Isowaki 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: 20210060320
    Abstract: A method for administering a drug to a diseased portion is achieved in a short time and predominantly improves the administration amount (transdermal permeation amount) of the drug in treatment of eyelid disease or palpebral conjunctiva disease. The method for administering a drug for treatment of eyelid disease or palpebral conjunctiva disease includes a step of microneedle perforation by using a microneedle device into a tissue of the eyelid including a meibomian gland of a patient suffering from or suspected of having the disease, in which drug-containing coating is applied to at least a part of a surface of the microneedle, and the drug is a water-soluble drug.
    Type: Application
    Filed: December 27, 2018
    Publication date: March 4, 2021
    Inventors: Teppei OSAKO, Koji KAWAHARA, Takahiro OGAWA, Akiharu ISOWAKI,, Tetsuo KIDA
  • Publication number: 20200138732
    Abstract: An adhesive skin patch with a support liner comprises at least a strip drug product and a release liner longer than the drug product. The support liner includes a backing film and an adhesive layer; the drug product is quadrilateral with two long sides being straight in parallel and two short sides each elliptical arcs convex outward; a longest interval between the two short sides is 20.0 mm or more and 50.0 mm or less, and an interval between the two long sides is 5.0 mm or more and 37.5 mm or less; and the elliptical arc has: an ellipse major axis of 20.0 mm or more and 50.0 mm or less, an ellipse minor axis of 14.8 mm or more and less than 50.0 mm, and the minor axis of at least 2.0 mm wider than the interval of the two long sides.
    Type: Application
    Filed: June 22, 2018
    Publication date: May 7, 2020
    Inventors: Takao HIRAOKA, Atsushi MURATA, Koji KAWAHARA, Takahiro OGAWA, Akiharu ISOWAKI
  • Publication number: 20190167568
    Abstract: [PROBLEMS TO BE SOLVED] To provide a method of advantageously improving a transdermal permeation amount of a steroid drug to diseased portions when treating ophthalmic diseases such as chalazion, blepharitis, allergic conjunctivitis, vernal keratoconjunctivitis, and meibomian gland dysfunction. [SOLUTION] To provide the transdermal drug delivery system for administering a drug via the eyelid skins that have been treated with a microneedle array, featured in that the drug is a water-soluble steroid, and the transdermal drug delivery system is a water-containing base adhesive skin patch.
    Type: Application
    Filed: June 29, 2017
    Publication date: June 6, 2019
    Applicants: SENJU USA, INC., NICHIBAN CO., LTD.
    Inventors: Takahiro OGAWA, Akiharu ISOWAKI, Tetsuo KIDA, Koji KAWAHARA, Emiko TESHIMA, Teppei OSAKO
  • Publication number: 20190099300
    Abstract: To provide an adhesive skin patch being allowed that a carrier layer being in close contact with a backing film layer is easily released after applying to an application site, so as to improve a handleability of the adhesive skin patch.
    Type: Application
    Filed: March 30, 2017
    Publication date: April 4, 2019
    Inventors: Takahiro OGAWA, Akiharu ISOWAKI, Mariko OHTSU, Takao HIRAOKA, Chihiro KENMOCHI, Atsushi MURATA, Koji KAWAHARA
  • Patent number: 9211397
    Abstract: A patch for treatment of eyelid diseases that is provided with a support, a pressure-sensitive adhesive layer, and a release layer in this order, wherein (a) the pressure-sensitive adhesive layer includes the following (a-1) to (a-4): (a-1) a styrene-isoprene-styrene block copolymer, a tackifier resin, and a softening agent are contained; (a-2) a ratio (mass ratio) of the styrene-isoprene-styrene block copolymer and the tackifier resin is 1:2 to 1:4; (a-3) a content of the softening agent is 40% to 60% by mass; and (a-4) further 0.005% to 5% by mass of clobetasol or acid ester thereof is contained; and (b) the support has elastic modulus with a Young's modulus of 0.01 to 0.5 GPa: and a method for producing the patch for treatment of eyelid diseases including: forming a pressure-sensitive adhesive layer on a upper surface of a release layer.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: December 15, 2015
    Assignee: SENJU USA, INC.
    Inventors: Takahiro Ogawa, Akiharu Isowaki, Koji Kawahara, Takao Hiraoka, Mariko Tanaka, Chihiro Kenmochi
  • Patent number: 8900626
    Abstract: A transdermal drug delivery system comprising a steroid as an active agent, wherein the steroid may be clobetasol propionate, betamethasone dipropionate, amcinonide, or loteprednol etabonate. The transdermal drug delivery system also comprises a pressure-sensitive adhesive layer and a support, wherein the steroid is present in the pressure-sensitive adhesive layer, and wherein the pressure-sensitive adhesive layer is provided on a support. The transdermal drug delivery system may be applied onto the eyelid of a patient in need thereof, in order to treat a disease of the eyelid, such as chalazion, blepharitis or meibomian gland dysfunction.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: December 2, 2014
    Assignee: Senju USA, Inc.
    Inventors: Takahiro Ogawa, Akiharu Isowaki
  • Publication number: 20140171886
    Abstract: A patch for treatment of eyelid diseases that is provided with a support, a pressure-sensitive adhesive layer, and a release layer in this order, wherein (a) the pressure-sensitive adhesive layer includes the following (a-1) to (a-4): (a-1) a styrene-isoprene-styrene block copolymer, a tackifier resin, and a softening agent are contained; (a-2) a ratio (mass ratio) of the styrene-isoprene-styrene block copolymer and the tackifier resin is 1:2 to 1:4; (a-3) a content of the softening agent is 40% to 60% by mass; and (a-4) further 0.005% to 5% by mass of clobetasol or acid ester thereof is contained; and (b) the support has elastic modulus with a Young's modulus of 0.01 to 0.5 GPa: and a method for producing the patch for treatment of eyelid diseases including: forming a pressure-sensitive adhesive layer on a upper surface of a release layer.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Applicant: SENJU USA, INC.
    Inventors: Takahiro Ogawa, Akiharu Isowaki, Koji Kawahara, Takao Hiraoka, Mariko Tanaka, Chihiro Kenmochi
  • Publication number: 20120321673
    Abstract: A transdermal drug delivery system comprising a steroid as an active agent, wherein the steroid may be clobetasol propionate, betamethasone dipropionate, amcinonide, or loteprednol etabonate. The transdermal drug delivery system also comprises a pressure-sensitive adhesive layer and a support, wherein the steroid is present in the pressure-sensitive adhesive layer, and wherein the pressure-sensitive adhesive layer is provided on a support. The transdermal drug delivery system may be applied onto the eyelid of a patient in need thereof, in order to treat a disease of the eyelid, such as chalazion, blepharitis or meibomian gland dysfunction.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 20, 2012
    Inventors: Takahiro OGAWA, Akiharu Isowaki
  • Patent number: 8101654
    Abstract: The present invention provides a percutaneously absorptive preparation for preventing or treating allergic eye disease, which comprises olopatadine or a salt thereof as an active ingredient. In addition, the present invention provides a method for preventing or treating allergic eye disease, which comprises applying a percutaneously absorptive preparation comprising olopatadine or a salt thereof to the skin surface including the skin surface of an eyelid, thereby casing transfer of a therapeutically effective amount of olopatadine or a salt thereof from the preparation to an anterior ocular segment through the skin of the eyelid rather than a systemic blood flow. The present preparation can exert a pharmacological effect over a prolonged period by a single application, as compared to conventional preparations such as eye drops.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: January 24, 2012
    Assignee: Senju Pharmaceutical Co., Ltd.
    Inventors: Akiharu Isowaki, Tomoko Nakajima, Akira Ohtori
  • Publication number: 20100150992
    Abstract: A transdermal drug delivery system for treatment of ophthalmic diseases comprising a structure that a plaster layer containing a remedy for ophthalmic diseases is provided on a support, wherein the system is applied to a skin surface including a front surface of an eyelid to administer the remedy for ophthalmic diseases in the plaster layer to an ophthalmic topical tissue by percutaneous permeation substantially without being administered through a systemic blood flow. Use of the transdermal drug delivery system for treatment of ophthalmic diseases, comprising applying the transdermal drug delivery system to a skin surface including a front surface of an eyelid to transfer the remedy for ophthalmic diseases in the plaster layer to an ophthalmic topical tissue by percutaneous permeation substantially without being administered through a systemic blood flow, and a method for transferring the remedy for ophthalmic diseases to the ophthalmic topical tissue.
    Type: Application
    Filed: February 25, 2010
    Publication date: June 17, 2010
    Inventors: Kohji Kawahara, Yasuhiko Aramomi, Akira Ohtori, Akiharu Isowaki
  • Publication number: 20090318422
    Abstract: The present invention provides an ophthalmic percutaneous absorption type preparation containing an ophthalmic drug and a vasoconstrictor, which can increase the amount of the ophthalmic drug transferred through the eyelid to a topical area in the eye, particularly the anterior segment of the eye such as conjunctiva, lacrimal fluid, aqueous humor, cornea and the like by administration to the skin surface of an eyelid.
    Type: Application
    Filed: August 28, 2007
    Publication date: December 24, 2009
    Inventors: Akiharu Isowaki, Tomoko Nakajima, Akira Ohtori
  • Publication number: 20090220580
    Abstract: The present invention provides a percutaneous absorption formulation including a patch having an adhesive layer disposed on a substrate and the adhesive layer contains ketotifen fumarate and tris(hydroxymethyl)aminomethane, and the patch is packaged in a hygroscopic packaging material. In the percutaneous absorption formulation, tris(hydroxymethyl)aminomethane particularly selected from various basic substances is incorporated, and by packaging the patch in a hygroscopic packaging material, the percutaneous absorptivity and content stability of a drug can be simultaneously improved and the yellowing of the drug can be suppressed. These effects can be further improved by the incorporation of propyl gallate, the use of an adhesive layer including an SIS-based adhesive base and a rosin ester-based adhesion imparting resin, and/or the removal of oxygen from the atmosphere in the inside of the packaging material.
    Type: Application
    Filed: April 20, 2005
    Publication date: September 3, 2009
    Applicant: SENJU PHARMACEUTICAL CO., LTD.
    Inventors: Kouji Kawahara, Yasuhiko Aramomi, Noriko Shimada, Akira Ohtori, Akiharu Isowaki
  • Publication number: 20090209632
    Abstract: The present invention provides a percutaneously absorptive preparation for preventing or treating allergic eye disease, which comprises olopatadine or a salt thereof as an active ingredient. In addition, the present invention provides a method for preventing or treating allergic eye disease, which comprises applying a percutaneously absorptive preparation comprising olopatadine or a salt thereof to the skin surface including the skin surface of an eyelid, thereby casing transfer of a therapeutically effective amount of olopatadine or a salt thereof from the preparation to an anterior ocular segment through the skin of the eyelid rather than a systemic blood flow. The present preparation can exert a pharmacological effect over a prolonged period by a single application, as compared to conventional preparations such as eye drops.
    Type: Application
    Filed: July 7, 2006
    Publication date: August 20, 2009
    Inventors: Akiharu Isowaki, Tomoko Nakajima, Akira Ohtori
  • Publication number: 20090143359
    Abstract: The present invention provides a percutaneously absorptive preparation for preventing or treating allergic eye disease, which comprises epinastine or a salt thereof as an active ingredient. In addition, the present invention provides a method for preventing or treating allergic eye disease, which comprises applying a percutaneously absorptive preparation comprising epinastine or a salt thereof to the skin surface including the skin surface of an eyelid, thereby causing transfer of a therapeutically effective amount of epinastine or a salt thereof from the preparation to an anterior ocular segment through the skin of the eyelid rather than a systemic blood flow. The present preparation can exert a pharmacological effect over a prolonged period by a single application, as compared to conventional preparations such as eye drops.
    Type: Application
    Filed: July 7, 2006
    Publication date: June 4, 2009
    Inventors: Akiharu Isowaki, Tomoko Nakajima, Akira Ohtori
  • Publication number: 20090082381
    Abstract: The present invention provides a percutaneously absorbable ophthalmic preparation that permits the retention of a therapeutically effective concentration of a heterocyclic spiro compound and a salt thereof for promoting lacrimation, and that produces less adverse reactions such as miosis. Specifically, the present invention provides a percutaneously absorbable ophthalmic preparation comprising as an active ingredient a heterocyclic spiro compound represented by the general formula (I): [wherein the symbols have the same definitions as those given in the description] or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: July 26, 2006
    Publication date: March 26, 2009
    Inventors: Akiharu Isowaki, Akira Ohtori
  • Publication number: 20070053964
    Abstract: A percutaneous absorption type ophthalmic preparation comprising muscarinic receptor agonist is prepared, which can promote lacrimal fluid secretion by administration to the skin surface of the eyelid, and which causes fewer side effects such as miosis, thereby to provide a percutaneous absorption type ophthalmic preparation capable of maintaining a therapeutically effective concentration of a muscarinic receptor agonist for promoting lacrimal fluid secretion, which is associated with fewer side effects such as miosis, and a method of promoting lacrimal fluid secretion by administering a percutaneous absorption type ophthalmic preparation containing a muscarinic receptor agonist to the skin surface of the eyelid.
    Type: Application
    Filed: May 20, 2005
    Publication date: March 8, 2007
    Inventors: Akiharu Isowaki, Akira Ohtori
  • Patent number: 7052714
    Abstract: Ophthalmic adhesive preparations for percutaneous absorption to be used in treating diseases in the posterior parts of eye characterized by having a drug-containing layer which contains a drug to be delivered to the posterior parts of eye including the crystalline lens, the vitreous body, the uvea and the retina, together with a percutaneous sorbefacient comprising polyoxyethylene oleyl ether and/or isopropyl myristate uniformly dispersed in a base matrix.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 30, 2006
    Assignees: Senju Pharmaceutical Co., LTD, Kakuji Tojo
    Inventors: Kakuji Tojo, Akiharu Isowaki
  • Publication number: 20060036220
    Abstract: A transdermal drug delivery system for treatment of ophthalmic diseases comprising a structure that a plaster layer containing a remedy for ophthalmic diseases is provided on a support, wherein the system is applied to a skin surface including a front surface of an eyelid to administer the remedy for ophthalmic diseases in the plaster layer to an ophthalmic topical tissue by percutaneous permeation substantially without being administered through a systemic blood flow. Use of the transdermal drug delivery system for treatment of ophthalmic diseases, comprising applying the transdermal drug delivery system to a skin surface including a front surface of an eyelid to transfer the remedy for ophthalmic diseases in the plaster layer to an ophthalmic topical tissue by percutaneous permeation substantially without being administered through a systemic blood flow, and a method for transferring the remedy for ophthalmic diseases to the ophthalmic topical tissue.
    Type: Application
    Filed: January 22, 2004
    Publication date: February 16, 2006
    Inventors: Kohji Kawahara, Yasuhiko Aramomi, Akira Ohtori, Akiharu Isowaki