Patents by Inventor Yoshihiro Iwao
Yoshihiro Iwao 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).
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Patent number: 8127926Abstract: A patch package structure which includes: a package including a first sheet material which is planar and a second sheet material which has been molded, a peripheral area of the first sheet material having been sealed to a peripheral area of the second sheet material to constitute the package, and a patch disposed in the package; in which the patch includes a backing, a pressure-sensitive adhesive layer formed on at least one side of the backing, and a release liner which protects the pressure-sensitive adhesive surface of the pressure-sensitive adhesive layer, the release liner having a weakening line for assisting a removal of the release liner; and in which the second sheet material has specific first protrudent part, second protrudent part, third protrudent part and elevated part in a central area thereof except the peripheral area thereof.Type: GrantFiled: December 22, 2009Date of Patent: March 6, 2012Assignee: Nitto Denko CorporationInventors: Katsuhiro Okada, Yoshihiro Iwao, Kensuke Matsuoka
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Patent number: 8096417Abstract: The main object of the present invention is to provide a patch package structure capable of stably retaining the physiologically active ingredient in a patch during preservation of the patch. This object can be achieved by employing the following constitution. To be specific, the present invention is a patch package structure including a patch 1 and a packaging member 51 holding the patch, wherein the patch 1 includes a support 2 and an adhesive layer 3 formed on at least one surface of the support 2, the packaging member 51 includes a first package 11, the first package 11 including an acrylonitrile resin layer 12, a moisture-absorbing layer 13 formed on the acrylonitrile resin layer 12, and a moisture impermeable layer 14 formed on the moisture-absorbing layer 13, and the acrylonitrile resin layer 12 is provided on the proximal side of the patch 1.Type: GrantFiled: December 12, 2008Date of Patent: January 17, 2012Assignees: Nitto Denko Corporation, Sasaki Chemical Co., Ltd.Inventors: Yoshihiro Iwao, Akinori Hanatani, Junichi Sekiya, Hitoshi Akemi
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Patent number: 8033395Abstract: The main object of the present invention is to provide a patch package structure including a patch containing a physiologically active ingredient and a package housing the patch, which is capable of stably retaining the physiologically active ingredient in the patch during preservation. This object can be achieved by employing the following constitution. To be specific, the present invention is a patch package structure including a patch 1 having an adhesive layer containing an organic liquid component, and a packaging member 51 housing the patch, wherein the packaging member 51 includes a first package 11, the first package 11 including an acrylonitrile resin layer 12, a moisture-absorbing layer 13 formed on the acrylonitrile resin layer 12, and a moisture impermeable layer 14 formed on the moisture-absorbing layer 13, and the acrylonitrile resin layer 12 is provided on the proximal side of the patch 1.Type: GrantFiled: December 12, 2008Date of Patent: October 11, 2011Assignees: Nitto Denko Corporation, Sasaki Chemical Co., Ltd.Inventors: Yoshihiro Iwao, Akinori Hanatani, Junichi Sekiya, Hitoshi Akemi
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Publication number: 20110243998Abstract: The invention provides a patch preparation containing (a) a support and (b) an adhesive layer containing a drug on the surface of the support, wherein a crystal of the drug is formed in the adhesive layer immediately after application of a physical stimulation to the adhesive layer, while a crystal of the drug is formed during preservation after the physical stimulation. The patch preparation which does not require an increase in the area and thickness of an adhesive layer, achieves a sufficiently high skin permeation amount of the drug, shows good adhesiveness to skin, and permits a long-term adhesion to skin. The invention also provides a method of producing the patch preparation.Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Applicant: Nitto Denko CorporationInventors: Sachiko SAKAMOTO, Akinori Hanatani, Arimichi Okazaki, Hitoshi Akemi, Yoshihiro Iwao, Kensuke Matsuoka
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Publication number: 20110056609Abstract: The invention provides an adhesive preparation including a backing, and a pressure-sensitive adhesive layer which contains a drug and is disposed on at least one side of the backing; in which the backing includes a polyester film having a thickness of 0.5 to 6.0 ?m, and a polyester nonwoven fabric directly bound to the film. The pressure-sensitive adhesive layer preferably is directly or indirectly laminated on the nonwoven-fabric side of the backing The adhesive preparation of the invention is flexible enough to comply to the skin and has reduced skin irritation and high stability.Type: ApplicationFiled: November 12, 2010Publication date: March 10, 2011Applicant: NITTO DENKO CORPORATIONInventors: Yoshihiro IWAO, Katsuyuki OKUBO, Katsuhiro OKADA, Kensuke MATSUOKA
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Publication number: 20110059155Abstract: The present invention provides a water resistant patch preparation having a central part and a peripheral part, which preparation is comprised of a support and an adhesive layer comprising a drug, which is formed on one surface of the support, wherein at least a part of a lateral end of the adhesive layer in the peripheral part is located inside a lateral end of the support, and the adhesive layer in the peripheral part has a thickness smaller than that of the adhesive layer in the central part.Type: ApplicationFiled: August 31, 2010Publication date: March 10, 2011Applicant: NITTO DENKO CORPORATIONInventors: Kazuhiro AOYAGI, Yoshihiro IWAO, Kensuke MATSUOKA
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Publication number: 20100203108Abstract: The present invention provides to a patch and a patch preparation having low stretchability, which can be continuously adhered to the skin for a long time without undesirable detachment and marked falling off from the skin due to various factors during adhesion, and specifically provides a low stretchable patch and a patch preparation containing a support and an adhesive layer formed on one surface of the support, wherein a ratio P of the total length W (mm) of curved sections of a planar outer shape of the patch to the total length S (mm) of straight-line sections of the planar outer shape of the patch (W/S) is not more than 1.22, and, when the curved sections are approximated by a circular arc, the radius R (mm) of the circular arc is not less than 0.5 mm.Type: ApplicationFiled: February 12, 2010Publication date: August 12, 2010Inventors: Sachiko Terashi, Akinori Hanatani, Hitoshi Akemi, Yoshihiro Iwao
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Publication number: 20100158991Abstract: A patch package structure which includes: a package including a first sheet material which is planar and a second sheet material which has been molded, a peripheral area of the first sheet material having been sealed to a peripheral area of the second sheet material to constitute the package, and a patch disposed in the package; in which the patch includes a backing, a pressure-sensitive adhesive layer formed on at least one side of the backing, and a release liner which protects the pressure-sensitive adhesive surface of the pressure-sensitive adhesive layer, the release liner having a weakening line for assisting a removal of the release liner; and in which the second sheet material has specific first protrudent part, second protrudent part, third protrudent part and elevated part in a central area thereof except the peripheral area thereof.Type: ApplicationFiled: December 22, 2009Publication date: June 24, 2010Applicant: NITTO DENKO CORPORATIONInventors: Katsuhiro OKADA, Yoshihiro IWAO, Kensuke MATSUOKA
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Publication number: 20100122927Abstract: Provision of a blister package that cannot be opened easily by infants, but can be opened easily, certainly and safely by a user when in use. A blister package 100 containing a blister 1 and a cover sheet 2, wherein the blister has a groove 3 formed in an outer edge section 1A thereof where the cover sheet is adhered and the groove 3 is free of adhesion of the sheet. The cover sheet is adhered to the outermost circumference 1a of the outer edge section 1A, the groove 3 is formed on the inward side of the outermost circumference 1a, and the cover sheet is not adhered to the area on the inward side of the groove 3.Type: ApplicationFiled: November 16, 2009Publication date: May 20, 2010Inventors: Kensuke MATSUOKA, Yoshihiro Iwao, Katsuhiro Okada
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Publication number: 20100098747Abstract: The present invention relates to a percutaneous administration device of bisoprolol, which includes a backing; and a pressure-sensitive adhesive layer containing bisoprolol, which is laminated on one surface of the backing, wherein the maximum value of a release rate of bisoprolol during a period of from immediately after the application on skin until a lapse of 24 hours is 30 ?g/cm2/hr or less; and wherein the release rate of bisoprolol at the time of a lapse of 24 hours after the application on skin is 10 ?g/cm2/hr or less. The percutaneous administration device of the present invention is reduced in the skin irritation during the application, especially at the time of peeling, and is capable of persistently administrating a therapeutically or preventively effective amount of bisoprolol into a living body.Type: ApplicationFiled: March 6, 2008Publication date: April 22, 2010Applicants: NITTO DENKO CORPORATION, TOA EIYO LTD.Inventors: Yoshihiro Iwao, Kensuke Matsuoka, Katsuhiro Okada, Kunihiro Minami, Shuichiro Yuasa
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Publication number: 20100092544Abstract: The present invention provides an adhesive composition for patch, containing a rubber elastomer and a tackifier having a weight average molecular weight of 1200-2500, a patch having a support and an adhesive layer containing the composition, which is provided on at least one surface of the support, and a patch preparation having an adhesive layer containing a percutaneously absorbable drug (excluding bisoprolol).Type: ApplicationFiled: October 14, 2008Publication date: April 15, 2010Inventors: Katsuhiro Okada, Yoshihiro Iwao, Katsuyuki Ookubo
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Publication number: 20090291126Abstract: An adhesive pharmaceutical preparation which has a less irritation to the skin surface, keeps excellent stability of bisoprolol in the preparation, and allows continuous administration of a pharmacologically effective amount of bisoprolol into the living body, is provided. The adhesive preparation 10 comprises a support 1, an adhesive layer 2 laminated on one surface of the support 1. The adhesive layer 2 is characterized by containing bisoprolol, polyisobutylene, tackifier, and an organic liquid ingredient compatible to polyisobutylene and tackifier. Thus, an adhesive pharmaceutical preparation which has a good adhesiveness with less irritation to the skin and which gives almost no pain at peel-off or removal from the skin surface with leaving almost no paste, can be provided. In addition, bisoprolol is very stably maintained in the preparation and a pharmacologically effective amount of bisoprolol can be administered continuously into the living body through the skin surface.Type: ApplicationFiled: September 7, 2006Publication date: November 26, 2009Applicants: NITTO DENKO CORPORATION, TOA EIYO LTD.Inventors: Yoshihiro Iwao, Katsuyuki Ookubo, Katsuhiro Okada, Kunihiro Minami, Shuichiro Yuasa
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Publication number: 20090194447Abstract: The present invention provides a patch package structure which includes a package and a patch disposed in the package, in which the package includes a first sheet material which is substantially planar and a second sheet material which has been molded, the second sheet material has a first region which projects outward from the package and a second region which surrounds the first region and is substantially planar, the first region has a planar outer shape which includes a planar outer shape of the patch, and the second region has a first sealed region which surrounds the first region and an unsealed region located nearer to a central part of the second sheet material than the first sealed region. According to the invention, the patch is inhibited from adhering to the inner surface of the package and the package can be easily opened by hand.Type: ApplicationFiled: February 5, 2009Publication date: August 6, 2009Applicant: NITTO DENKO CORPORATIONInventors: Katsuhiro OKADA, Yoshihiro IWAO, Kensuke MATSUOKA
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Publication number: 20090169604Abstract: In the adhesive pharmaceutical preparation of the invention containing bisoprolol, a pressure-sensitive adhesive layer is laminated on one side of the backing. The pressure-sensitive adhesive layer contains a branched monoalcohol having from 12 to 28 carbon atoms, a free base of bisoprolol and a polyisobutylene pressure-sensitive adhesive. Accordingly, compatibility of the polyisobutylene pressure-sensitive adhesive with the free base of bisoprolol can be specifically increased. As a result, not only it becomes possible to increase blending amount of the free base of bisoprolol but also bleed of the free base of bisoprolol from the pressure-sensitive adhesive layer can be suppressed and, what is more, the pressure-sensitive adhesion characteristics sufficient from the practical point of view can be obtained.Type: ApplicationFiled: December 13, 2006Publication date: July 2, 2009Applicants: NITTO DENKO CORPORATION, TOA EIYO LTD.Inventors: Yoshihiro Iwao, Katsuyuki Ookubo, Katsuhiro Okada, Kunihiro Minami, Shuichiro Yuasa
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Publication number: 20090166236Abstract: The main object of the present invention is to provide a patch package structure capable of stably retaining the physiologically active ingredient in a patch during preservation of the patch. This object can be achieved by employing the following constitution. To be specific, the present invention is a patch package structure including a patch 1 and a packaging member 51 holding the patch, wherein the patch 1 includes a support 2 and an adhesive layer 3 formed on at least one surface of the support 2, the packaging member 51 includes a first package 11, the first package 11 including an acrylonitrile resin layer 12, a moisture-absorbing layer 13 formed on the acrylonitrile resin layer 12, and a moisture impermeable layer 14 formed on the moisture-absorbing layer 13, and the acrylonitrile resin layer 12 is provided on the proximal side of the patch 1.Type: ApplicationFiled: December 12, 2008Publication date: July 2, 2009Inventors: Yoshihiro Iwao, Akinori Hanatani, Junichi Sekiya, Hitoshi Akemi
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Publication number: 20090169603Abstract: In the adhesive pharmaceutical preparation of the invention, a pressure-sensitive adhesive layer is laminated on one side of the backing. The pressure-sensitive adhesive layer contains a branched monoalcohol having from 12 to 28 carbon atoms, a drug which is liquid at room temperature or around room temperature (in which, free base of bisoprolol is excluded) and a polyisobutylene pressure-sensitive adhesive. Accordingly, compatibility of the polyisobutylene pressure-sensitive adhesive with the drug can be specifically increased. As a result, not only it becomes possible to increase blending amount of the drug but also bleed of the drug from the pressure-sensitive adhesive layer can be suppressed and, what is more, the pressure-sensitive adhesion characteristics sufficient from the practical point of view can be obtained.Type: ApplicationFiled: December 13, 2006Publication date: July 2, 2009Applicant: NITTO DENKO CORPORATIONInventors: Yoshihiro Iwao, Katsuyuki Ookubo, Katsuhiro Okada
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Publication number: 20090166229Abstract: The main object of the present invention is to provide a patch package structure including a patch containing a physiologically active ingredient and a package housing the patch, which is capable of stably retaining the physiologically active ingredient in the patch during preservation. This object can be achieved by employing the following constitution. To be specific, the present invention is a patch package structure including a patch 1 having an adhesive layer containing an organic liquid component, and a packaging member 51 housing the patch, wherein the packaging member 51 includes a first package 11, the first package 11 including an acrylonitrile resin layer 12, a moisture-absorbing layer 13 formed on the acrylonitrile resin layer 12, and a moisture impermeable layer 14 formed on the moisture-absorbing layer 13, and the acrylonitrile resin layer 12 is provided on the proximal side of the patch 1.Type: ApplicationFiled: December 12, 2008Publication date: July 2, 2009Inventors: Yoshihiro Iwao, Akinori Hanatani, Junichi Sekiya, Hitoshi Akemi
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Publication number: 20090011159Abstract: The present invention relates to a patch package structure which includes: a package including a first sheet material and a second sheet material, the first and second sheet materials being sealed together in peripheral parts thereof; and a patch disposed in the package, the patch contains a backing, a pressure-sensitive adhesive layer laminated on at least one side of the backing, and a release liner which protects a pressure-sensitive adhesive surface of the pressure-sensitive adhesive layer, the release liner having on a surface thereof a cut line supporting a peel-off of the release liner at the time of using the patch, the patch being disposed in the package so that the release liner faces the inner surface of the first sheet material, the first sheet material having a first region in which the inner surface of the first sheet material faces the cut line of the release liner, the first sheet material having in the first region a minimum first distance between the inner surface of the first sheet materialType: ApplicationFiled: July 2, 2008Publication date: January 8, 2009Applicant: NITTO DENKO CORPORATIONInventors: Katsuhiro Okada, Yoshihiro Iwao, Kensuke Matsuoka
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Publication number: 20080172015Abstract: The present invention provides a patch package structure, which includes: a package including a first sheet material which is planar and a second sheet material which has been molded, the first and second sheet materials being sealed together in peripheral parts thereof, and a patch disposed in the package, in which the patch contains a backing, a pressure-sensitive adhesive layer laminated on at least one side of the backing, and a release liner which protects a pressure-sensitive adhesive surface of the pressure-sensitive adhesive layer; the second sheet material has been molded so as to have a protrudent part in at least a substantially central area thereof, the protrudent part having a planar outer shape larger than a planar outer shape of the release liner and having at least one recessed part; d is not smaller than T, in which d is the minimum gap distance between the inner surface of the first sheet material and the inner surface of the second sheet material at the recessed part and T is a thickness ofType: ApplicationFiled: January 11, 2008Publication date: July 17, 2008Applicant: NITTO DENKO CORPORATIONInventors: Katsuhiro OKADA, Yoshihiro IWAO, Kensuke MATSUOKA
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Publication number: 20080118725Abstract: The invention provides an adhesive preparation including a backing, and a pressure-sensitive adhesive layer which contains a drug and is disposed on at least one side of the backing; in which the backing includes a polyester film having a thickness of 0.5 to 6.0 ?m, and a polyester nonwoven fabric directly bound to the film. The pressure-sensitive adhesive layer preferably is directly or indirectly laminated on the nonwoven-fabric side of the backing. The adhesive preparation of the invention is flexible enough to comply to the skin and has reduced skin irritation and high stability.Type: ApplicationFiled: November 21, 2007Publication date: May 22, 2008Applicant: NITTO DENKO CORPORATIONInventors: Yoshihiro IWAO, Katsuyuki OKUBO, Katsuhiro OKADA, Kensuke MATSUOKA