Patents by Inventor Ryoji Konishi

Ryoji Konishi 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: 9273050
    Abstract: Provided is a compound having at least one selected from the group consisting of cell growth promoting activity, angiogenesis promoting activity, lumen formation promoting activity, cell migration promoting activity, and neurocyte growth promoting activity, which is a chemically stable low-molecular-weight substance that has high absorbability and can be supplied stably at a low cost because of its low molecular weight. A cyclobutyl purine derivative, a tautomer or stereoisomer thereof, or a salt, solvate, or hydrate thereof according to the present invention is a cyclobutyl purine derivative represented by the following general formula (1), a tautomer or stereoisomer thereof, or a salt, solvate, or hydrate thereof.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: March 1, 2016
    Assignee: National University Corporation Kagawa University
    Inventors: Ikuko Tsukamoto, Ryoji Konishi, Masaaki Tokuda, Yasuo Kubota, Tokumi Maruyama, Hiroaki Kosaka, Junsuke Igarashi
  • Publication number: 20110230659
    Abstract: Provided is a compound having at least one selected from the group consisting of cell growth promoting activity, angiogenesis promoting activity, lumen formation promoting activity, cell migration promoting activity, and neurocyte growth promoting activity, which is a chemically stable low-molecular-weight substance that has high absorbability and can be supplied stably at a low cost because of its low molecular weight. A cyclobutyl purine derivative, a tautomer or stereoisomer thereof, or a salt, solvate, or hydrate thereof according to the present invention is a cyclobutyl purine derivative represented by the following general formula (1), a tautomer or stereoisomer thereof, or a salt, solvate, or hydrate thereof.
    Type: Application
    Filed: November 27, 2009
    Publication date: September 22, 2011
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Ikuko Tsukamoto, Ryoji Konishi, Masaaki Tokuda, Yasuo Kubota, Tokumi Maruyama, Hiroaki Kosaka, Junsuke Igarashi
  • Publication number: 20100222285
    Abstract: A specific rare sugar having effects of inhibiting the proliferation of vascular endothelial cells and lumen formation is disclosed. This rare sugar is provided as a preventive/remedy for diseases with angiogenesis, a cosmetic or a functional food. The proliferation of vascular endothelial cells is controlled utilizing the vascular endothelial cell proliferation-controlling effect of D-mannose, D-allose, 2-deloxy-D-glucose, 3-deoxy-D-glucose, L-sorbose, 2-deoxy-D-ribose and/or 2-deoxy-L-ribose. Lumen formation of vascular endothelial cells is inhibited by utilizing the vascular endothelial cell lumen formation-inhibiting effect of D-allose, D-altrose, D-glucose, D-talose, L-allose, 2-deloxy-D-glucose, 3-deoxy-D-glucose, D-ribose, L-ribose, 2-deoxy-D-ribose and/or 2-deoxy-L-ribose.
    Type: Application
    Filed: May 7, 2010
    Publication date: September 2, 2010
    Applicant: Rare Sugar Production Technical Research Laboratories, LLC
    Inventors: Masaaki Tokuda, Ikuko Tsukamoto, Ryoji Konishi, Yasuo Kubota, Ken Izumori
  • Publication number: 20080306011
    Abstract: [PROBLEMS] To find out a specific rare sugar having effects of inhibiting the proliferation of vascular endothelial cells and lumen formation and utilize these effects. To provide this rare sugar as a preventive/remedy for diseases with angiogenesis, a cosmetic or a functional food. [MEANS FOR SOLVING PROBLEMS] A method of controlling the proliferation of vascular endothelial cells characterized by utilizing the vascular endothelial cell proliferation-controlling effect of D-mannose, D-allose, 2-deoxy-D-glucose, 3-deoxy-D-glucose, L-sorbose, 2-deoxy-D-ribose and/or 2-deoxy-L-ribose. A method of inhibiting lumen formation of vascular endothelial cells characterized by utilizing the vascular endothelial cell lumen formation-inhibiting effect of D-allose, D-altrose, D-gulose, D-talose, L-allose, 2-deoxy-D-glucose, 3-deoxy-D-glucose, D-ribose, L-ribose, 2-deoxy-D-ribose and/or 2-deoxy-L-ribose.
    Type: Application
    Filed: May 26, 2005
    Publication date: December 11, 2008
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Masaaki Tokuda, Ikuko Tsukamoto, Ryoji Konishi, Yasuo Kubota, Ken Izumori
  • Patent number: 5916918
    Abstract: A drug for the treatment of skin injuries, particularly hardly curable diseases such as bedsore, which comprises as an active ingredient acetylsalicylic acid. The drug is used in the form of a topical preparation for external application or is administered orally to the patients.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: June 29, 1999
    Assignee: Teikoku Seiyaku Kabushiki Kaisha
    Inventors: Ryoji Konishi, Mitsuhiro Kawada, Noriko Mizobuchi, Sayuri Seto, Osamu Hatase, Masaaki Tokuda
  • Patent number: 5827529
    Abstract: An external preparation for application to the skin containing lidocaine which comprises a drug-retaining layer placed on a support, wherein said drug-retaining layer comprises an adhesive gel base and 1 to 10% by weight of lidocaine, said base comprising a water-soluble high molecular weight substance, water and a water-retaining agent, which can release the active lidocaine gradually and constantly so that lidocaine is transdermally absorbed for a long period of time.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: October 27, 1998
    Assignee: Teikoku Seiyaku Kabushiki Kaisha
    Inventors: Masahiro Ono, Mitsuji Akazawa, Michiko Seki, Kiyomi Iwamoto, Ryoji Konishi
  • Patent number: 5196202
    Abstract: A drug reservoir containing an active substance such as a drug is formed on an adhesive layer which can adhere to an oral mucosal membrane. A polymer, which does not dissolve with saliva, is further coated on the drug reservoir as a drug release controlling layer to form an entire oral cavity sustained release dosage form. A drug impermeable layer can be formed between the adhesive layer and the drug reservoir.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: March 23, 1993
    Assignee: Teikoku Seiyaku Kabushiki Kaisha
    Inventor: Ryoji Konishi
  • Patent number: 5082663
    Abstract: An external adhesive preparation comprising a steroid for treatment of skin diseases in admixture with an adhesive gel base comprising as essential components a water-soluble high molecular weight compound, water and a water-retaining agent. The external adhesive preparation is useful for treatment of skin diseases by applying the preparation spread on a soft support directly to diseased parts on the skin, thereby administering the contained steroid to the skin.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: January 21, 1992
    Assignees: Teikoku Seiyaky Co., Ltd., SS Pharmaceutical Co., Ltd.
    Inventors: Ryoji Konishi, Akihito Oji, Toshikuni Kawaji, Osami Makaya, Manabu Ishihara, Akira Iwasa
  • Patent number: 4900554
    Abstract: An adhesive device for application to body tissue having an adhesive layer and a backing layer positioned over one side of the adhesive layer. The adhesive layer includes one or more acrylic acid polymers having adhesive properties upon dissolution or swelling in water, and at least one water insoluble cellulose derivative. The backing layer is water insoluble or sparingly water soluble.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: February 13, 1990
    Assignee: Teikoku Seiyaku Co., Ltd.
    Inventors: Norio Yanagibashi, Setsuo Iwasaki, Takafumi Mizobuchi, Ryoji Konishi, Tatsuya Konishi, Takahiko Wato
  • Patent number: 4889720
    Abstract: A drug reservoir containing an active substance such as a drug is formed on an adhesive layer which can adhere to an oral mucosal membrane. A polymer, which does not dissolve with saliva, is further coated on the drug reservoir as a drug release controlling layer to form an entire oral cavity sustained release dosage form. A drug impermeable layer can be formed between the adhesive layer and the drug reservoir.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: December 26, 1989
    Assignee: Teikoku Seiyaku Kabushiki Kaisha
    Inventor: Ryoji Konishi