Patents by Inventor Katsuyuki Ookubo

Katsuyuki Ookubo 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).

  • Patent number: 8808731
    Abstract: 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: Grant
    Filed: September 7, 2006
    Date of Patent: August 19, 2014
    Assignees: Nitto Denko Corporation, Toa Eiyo Ltd.
    Inventors: Yoshihiro Iwao, Katsuyuki Ookubo, Katsuhiro Okada, Kunihiro Minami, Shuichiro Yuasa
  • Patent number: 8298572
    Abstract: 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: Grant
    Filed: December 13, 2006
    Date of Patent: October 30, 2012
    Assignees: Nitto Denko Corporation, Toa Eiyo Ltd.
    Inventors: Yoshihiro Iwao, Katsuyuki Ookubo, Katsuhiro Okada, Kunihiro Minami, Shuichiro Yuasa
  • Publication number: 20100092544
    Abstract: 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: Application
    Filed: October 14, 2008
    Publication date: April 15, 2010
    Inventors: Katsuhiro Okada, Yoshihiro Iwao, Katsuyuki Ookubo
  • Publication number: 20090291126
    Abstract: 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: Application
    Filed: September 7, 2006
    Publication date: November 26, 2009
    Applicants: NITTO DENKO CORPORATION, TOA EIYO LTD.
    Inventors: Yoshihiro Iwao, Katsuyuki Ookubo, Katsuhiro Okada, Kunihiro Minami, Shuichiro Yuasa
  • Publication number: 20090169604
    Abstract: 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: Application
    Filed: December 13, 2006
    Publication date: July 2, 2009
    Applicants: NITTO DENKO CORPORATION, TOA EIYO LTD.
    Inventors: Yoshihiro Iwao, Katsuyuki Ookubo, Katsuhiro Okada, Kunihiro Minami, Shuichiro Yuasa
  • Publication number: 20090169603
    Abstract: 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: Application
    Filed: December 13, 2006
    Publication date: July 2, 2009
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro Iwao, Katsuyuki Ookubo, Katsuhiro Okada