Patents by Inventor Mutsuo Okumura

Mutsuo Okumura 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: 20230338365
    Abstract: Provided is a novel inhalant as a therapeutic agent for COVID-19. The present invention relates to an inhalant containing cepharanthine.
    Type: Application
    Filed: May 14, 2021
    Publication date: October 26, 2023
    Applicant: KOWA COMPANY, LTD.
    Inventors: Mutsuo OKUMURA, Seiichi MURAKAMI
  • Patent number: 6426091
    Abstract: A theophylline sustained release tablet obtained by coating core granules composed mainly of theophylline with a layer of a coating film composed of a hydrophobic material and a plastic excipient and optionally containing an enteric polymer material to form coated granules and then by compressing the coated granules together with a disintegrating excipient.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: July 30, 2002
    Assignee: Nikken Chemicals Co., Ltd.
    Inventors: Mutsuo Okumura, Minoru Kamakura, Masaaki Sunohara
  • Patent number: 6187336
    Abstract: A rapidly soluble solid in the oral cavity comprising erythritol, which has a porous structure; and a process for producing a rapidly soluble solid in the oral cavity comprising erythritol, which comprises the steps of: preparing a composition comprising erythritol and appropriate moisture, kneading the composition, molding the kneaded composition, and drying the molded composition under reduced pressure.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: February 13, 2001
    Assignee: Nikken Chemicals Co., Ltd.
    Inventors: Mutsuo Okumura, Sachio Motegi, Tadashi Ukigaya, Katsuaki Miyazaki
  • Patent number: 6106863
    Abstract: The present invention provides a sustained-release metal valproate tablet which is comparatively compact and is not influenced by a meal, the sustained-release metal valproate comprising a core tablet comprising a metal valproate having on the surface a coating layer comprising light silicic acid anhydride dispersed in a mixture of ethyl cellulose and a methacrylic acid-methyl methacrylate copolymer.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: August 22, 2000
    Assignee: Nikken Chemicals Co., Ltd.
    Inventors: Tadashi Ukigaya, Mutsuo Okumura, Tadashi Tsukune
  • Patent number: 6090405
    Abstract: Disclosed is a buprenorphine percutaneous absorption preparation comprising a backing having formed on one side thereof a pressure-sensitive adhesive layer containing at least one of buprenorphine and a salt thereof, wherein the pressure-sensitive adhesive layer contains an acrylic copolymer and crosslinked acrylic copolymer particles. The buprenorphine percutaneous absorption preparation has excellent pressure-sensitive adhesive characteristics and exerts excellent percutaneous absorption property.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: July 18, 2000
    Assignees: Nitto Denko Corporation, Nikken Chemicals Co., Ltd.
    Inventors: Kazuhisa Ninomiya, Yasuhiro Fukushima, Mutsuo Okumura, Yuko Hosokawa
  • Patent number: 5869088
    Abstract: A transdermal administration preparation containing a 9-aminocyclopenta(b)quinoline, preferably 9-amino-2, 3,5,6,7,8-hexahydro-1H-cyclopentane(b)quinoline or its hydrochloride, as an active ingredient and the following transdermal absorption enhancer, that is, at least one compound selected from the group consisting of fatty acids, fatty acid esters, and alcohols, preferably the glyceride of a saturated fatty acid having 6 to 12 carbon atoms.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: February 9, 1999
    Assignee: Nikken Chemicals Co., Ltd
    Inventors: Yuko Hosokawa, Mutsuo Okumura, Mitsuru Ochiai
  • Patent number: 5618555
    Abstract: A percutaneous absorption preparation which is excellent in the skin penetration of a non-narcotic analgesic buprenorphine and can sustain a high blood level in a stable state over a long period of time is provided. The percutaneous absorption preparation for administrating buprenorphine hydrochloride and/or buprenorphine, which comprises a support having on one surface thereof a plaster layer containing a pressure-sensitive adhesive, buprenorphine hydrochloride and/or buprenorphine, and a penetration enhancer, wherein the penetration enhancer comprises a combination of a monoglyceride of a fatty acid having 6 to 8 carbon atoms and isopropyl myristate, and the plaster layer contains at least 10% by weight of a monoglyceride off fatty acid having 6 to 8 carbon atoms and at least 5% by weight off isopropyl myristate, with the proviso that the content of the whole penetration enhancer ranges from 25 to 50% by weight.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: April 8, 1997
    Assignees: Itto Denko Corporation, Nikken Chemicals Co., Ltd.
    Inventors: Shoichi Tokuda, Kazuhisa Ninomiya, Yasuhiro Fukushima, Shigeyuki Watanabe, Mitsuru Ochiai, Mutsuo Okumura, Yuko Hosokawa