Patents Assigned to Kowa Co., Ltd.
  • Patent number: 8394827
    Abstract: The present invention is to provide an inhibitor that inhibits differentiation of T cells into Th1 cells. The inhibitor that inhibits differentiation of T cells into Th1 cells contains, as an active ingredient, pitavastatin or a salt thereof.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: March 12, 2013
    Assignees: Kowa Co., Ltd., National University Corporation Nagoya University
    Inventor: Akio Suzumura
  • Publication number: 20130035344
    Abstract: The present invention relates to a solid pharmaceutical composition for oral administration, containing the following components (A) and (B): 2-[4-[2-(benzimidazol-2-ylthio)ethyl]piperazin-1-yl]-N-[2,4-bis(methylthio)-6-methyl-3-pyridyl]acetamide (compound a) or an acid addition salt thereof, and (B) citric acid. An improvement is achieved in the dissolubility of the compound a, which is useful as a therapeutic agent for hypercholesterolemia, arteriosclerosis, and the like.
    Type: Application
    Filed: December 27, 2010
    Publication date: February 7, 2013
    Applicant: KOWA Co., Ltd.
    Inventors: Masato Kozaki, Tatsuharu Shimokawa, Yoshio Tanizawa
  • Patent number: 8362027
    Abstract: The present invention is to provide means to treat breast cancer and/or mastitis by topically administering a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent and allowing them efficiently to arrive into the mammary gland. The present invention provides an iontophoretic preparation for treating breast cancer and/or mastitis which contains a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent as an active ingredient and has a donor to be applied on a nipple part for topical administration of the active ingredient from the nipple part to the mammary gland by application of electric potential.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: January 29, 2013
    Assignees: Kowa Co., Ltd., Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Toshio Inagi, Makoto Kanebako, Hiroshi Terada, Kimiko Makino, Masakazu Toi
  • Publication number: 20120328675
    Abstract: Provided is a film preparation in which an unpleasant taste derived from a medicament is masked. The film preparation includes coating layers containing no terpene formed on both sides of a medicament-containing layer containing a medicament having an unpleasant taste and a terpene.
    Type: Application
    Filed: March 3, 2011
    Publication date: December 27, 2012
    Applicants: KOWA CO., LTD., KYUKYU PHARMACEUTICAL CO., LTD.
    Inventors: Tsutomu Awamura, Hisanobu Nishikawa, Kazuhiko Kokaji, Akihiro Ishise, Takayuki Arai, Seiji Miura, Toshio Inagi
  • Publication number: 20120289517
    Abstract: The present invention relates to a solid pharmaceutical composition for oral administration, containing the following components (A) and (B): (A) 2-[4-[2-(benzimidazol-2-ylthio)ethyl]piperazin-1-yl]-N-[2,4-bis(methylthio)-6-methyl-3-pyridyl]acetamide (compound a) or an acid addition salt thereof, and (B) organic acid selected from the group consisting of tartaric acid, malic acid, ascorbic acid and benzoic acid. An improvement is achieved in the dissolubility of the compound a, which is useful as a therapeutic agent for hypercholesterolemia, arteriosclerosis, and the like.
    Type: Application
    Filed: December 27, 2010
    Publication date: November 15, 2012
    Applicant: Kowa Co., Ltd.
    Inventors: Masato Kozaki, Yoshio Tanizawa
  • Patent number: 8283154
    Abstract: The present invention provides a stable complex microbial system, which simultaneously decomposes a plurality of organic contaminants even under a polluted environment with these contaminants and permits more effective decomposition of persistent organic contaminants such as PCNB and simazine. A support for holding a complexed accumulation of degrading bacteria, which contains a porous material provided as a support on which a degrading bacterium A capable of degrading at least one organic contaminant and a degrading bacterium B capable of degrading another organic contaminant are accumulated, is produced. The degrading bacterium A may be a PCNB-degrading bacterium, particularly a degrading bacterium containing a degrading bacterium having part or all of mycological characteristics of Nocardioides sp. PD653 and the degrading bacterium B may be a degrading bacterium containing a degrading bacterium having part or all of mycological characteristics of ?-Proteobacteria CDB21.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: October 9, 2012
    Assignees: National Institute for Agro-Environmental Sciences Independent Administrative Institute, Kowa Co., Ltd.
    Inventors: Kazuhiro Takagi, Naoki Harada, Yuuichi Yoshioka
  • Patent number: 8222229
    Abstract: A peritoneal dialysate containing adenosine triphosphate or a salt thereof, and a peritoneal dialysis method using the dialysate. The peritoneal dialysate is safe and causes less peritoneal injuries even when employed in peritoneal dialysis over a long period of time.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: July 17, 2012
    Assignee: Kowa Co., Ltd.
    Inventors: Kei Kiribayashi, Noriaki Yorioka
  • Publication number: 20120165377
    Abstract: An FGF21 production promoting agent containing, as an active ingredient, a compound represented by the following formula (1): wherein each of R1 and R2, which may be identical to or different from each other, represents, for example, a hydrogen atom; each of R3a, R3b, R4a, and R4b, which may be identical to or different from one another, represents, for example, a hydrogen atom or a halogen atom, or R3a and R3b or R4a and R4b may bond together to form an alkylenedioxy group; X represents an oxygen atom, a sulfur atom, or N—R5 (R5 represents, for example, a hydrogen atom or a C1-4 alkyl group); Y represents, for example, an oxygen atom, an S(O)l group (l is a number of from 0 to 2), or a carbonyl group; Z represents CH or N; n is a number of from 1 to 6; and m is a number from 2 to 6, a salt of the compound, or a solvate of the compound or the salt.
    Type: Application
    Filed: September 27, 2010
    Publication date: June 28, 2012
    Applicant: Kowa Co., Ltd.
    Inventors: Toshiaki Takizawa, Kentaro Murakami
  • Patent number: 8193193
    Abstract: There is Provided an Agent for Prevention of glaucoma or an agent for prevention or treatment of ocular hypertension, with a potent ocular hypotensive effect and prolonged duration thereof. An agent for prevention or treatment of glaucoma comprising a Rho kinase inhibitor and a carbonic anhydrase inhibitor in combination.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: June 5, 2012
    Assignee: Kowa Co., Ltd.
    Inventors: Ken Mizuno, Jiro Matsumoto
  • Publication number: 20120095043
    Abstract: The present invention is directed to a triglyceride-lowering agent, exhibiting excellent triglyceride-lowering effect and a hyperinsulinemia-ameliorating agent. The triglyceride-lowering agent and hyperinsulinemia-ameliorating agent are characterized by containing a pitavastatin compound, and amlodipine or a salt thereof.
    Type: Application
    Filed: December 22, 2011
    Publication date: April 19, 2012
    Applicants: Nissan Chemical Industries Ltd., Kowa Co., Ltd.
    Inventors: Toru YOKOYAMA, Taro Aoki
  • Patent number: 8133739
    Abstract: To provide a lead concentration determination reagent which realizes accurate, high-sensitivity, and simple-manner determination of the lead ion concentration (also referred to simply as “lead concentration”) of a sample solution in the presence of calcium ions, and a lead concentration determination method employing the reagent. The lead concentration determination reagent contains (A) a water-soluble porphyrin derivative or a salt thereof, (B) at least one member selected from among polyacrylamide, polyvinyl alcohol, and polyethylene glycol, and (C) a calcium-ion-supplying compound.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: March 13, 2012
    Assignee: Kowa Co., Ltd.
    Inventor: Takaharu Asano
  • Patent number: 8124622
    Abstract: The present invention is directed to a triglyceride-lowering agent, exhibiting excellent triglyceride-lowering effect and a hyperinsulinemia-ameliorating agent. The triglyceride-lowering agent and hyperinsulinemia-ameliorating agent are characterized by containing a pitavastatin compound, and amlodipine or a salt thereof.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: February 28, 2012
    Assignees: Kowa Co., Ltd., Nissan Chemical Industries, Ltd.
    Inventors: Toru Yokoyama, Taro Aoki
  • Patent number: 8105630
    Abstract: A composition containing an extremely poorly water-soluble drug and obtained by treating, with a supercritical fluid or subcritical fluid of carbon dioxide, a mixture comprising a porous silica material and the extremely poorly water-soluble drug; and its production process. The porous silica material has an average pore diameter in a range of from 1 to 20 nm, pores having diameters within ±40% of the average pore size account for at least 60% of a total pore volume of the porous silica material, and in X-ray diffractometry, the porous silica material has at least one peak at a position of diffraction angle (2?) corresponding to a d value of at least 1 nm. The composition according to the present invention, which contains the extremely poorly water-soluble drug, is excellent in the dissolution of the extremely poorly water-soluble drug.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: January 31, 2012
    Assignees: Kowa Co., Ltd., Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Hiroshi Miura, Makoto Kanebako, Masayuki Kanishi, Toshio Inagi, Hirofumi Takeuchi, Tsutomu Kajino, Yoshiaki Fukushima, Haruo Takahashi
  • Patent number: 8101207
    Abstract: A composition containing a very low water-soluble drug, which composition is produced by treating, with a supercritical or subcritical carbon dioxide fluid, a mixture containing a very low water-soluble drug and a porous material (exclusive of a porous silica material characterized in that the material has an average pore diameter of 1 to 20 nm, the total pore volume of the material that have a diameter falling within a range of ±40% of the average pore diameter account for 60% or more the volume of all the pores of the material, and, when subjected to X-ray diffractometry, the material exhibits one or more peaks at a diffraction angle (2?) corresponding to d of 1 nm or more); and a method for producing the composition. The very-low-water-soluble-drug-containing composition of the present invention ensures improved dissolution of the very low water-soluble drug.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: January 24, 2012
    Assignee: Kowa Co., Ltd.
    Inventors: Hiroshi Miura, Makoto Kanebako, Masayuki Kanishi, Yasuo Shinoda, Toshio Inagi, Hirofumi Takeuchi
  • Publication number: 20120004306
    Abstract: An external preparation containing the following components (A), (B), and (C): (A) a non-steroidal analgesic/anti-inflammatory agent, (B) a polyhydric alcohol, and (C) a polyoxyalkylene alkyl ether and/or a polyoxyalkylene alkenyl ether. The external preparation of the present invention has improved the drug efficacy of a non-steroidal analgesic/anti-inflammatory agent, and can be effective at a low concentration. The external preparation of the present invention also has excellent appearance.
    Type: Application
    Filed: March 11, 2010
    Publication date: January 5, 2012
    Applicant: Kowa Co., Ltd.
    Inventors: Seiji Miura, Tsutomu Awamura, Yuhiro Yamazaki, Hironari Fujii
  • Publication number: 20120004305
    Abstract: An external preparation containing the following components (A), (B), (C), and (D): (A) a non-steroidal analgesic/anti-inflammatory agent, (B) a terpene and/or an essential oil containing a terpene, (C) a higher alcohol, and (D) a polyoxyalkylene alkyl ether and/or a polyoxyalkylene alkenyl ether. The external preparation of the present invention has improved skin permeation, and can thus be effective at a low concentration, and also has excellent appearance.
    Type: Application
    Filed: March 11, 2010
    Publication date: January 5, 2012
    Applicant: Kowa Co., Ltd.
    Inventors: Seiji Miura, Makoto Kanebako
  • Publication number: 20110319399
    Abstract: An external preparation containing the following components (A) and (B): (A) a non-steroidal analgesic/anti-inflammatory agent, and (B) an organic amine. The external preparation of the present invention has improved skin permeation and excellent stability of a non-steroidal analgesic/anti-inflammatory agent in the external preparation. The external preparation of the present invention also has excellent appearance.
    Type: Application
    Filed: March 11, 2010
    Publication date: December 29, 2011
    Applicant: KOWA CO., LTD.
    Inventors: Seiji Miura, Tsutomu Awamura, Yuhiro Yamazaki, Hironari Fujii
  • Publication number: 20110295189
    Abstract: The present invention is to provide means to treat breast cancer and/or mastitis by topically administering a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent and allowing them efficiently to arrive into the mammary gland. The present invention provides an iontophoretic preparation for treating breast cancer and/or mastitis which contains a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent as an active ingredient and has a donor to be applied on a nipple part for topical administration of the active ingredient from the nipple part to the mammary gland by application of electric potential.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 1, 2011
    Applicants: Tokyo Univ. of Sci. Edu. Fdn. Admin. Org., Kowa Co., Ltd.
    Inventors: Toshio INAGI, Makoto Kanebako, Hiroshi Terada, Kimiko Makino, Masakazu Toi
  • Patent number: 8034615
    Abstract: A screening method for a preventive or therapeutic agent for an autoimmune disease and/or for an apoptosis inhibitor, comprising determining retinoblastoma associated protein (RBAp48) production suppressing effect or RBAp48 production inhibitory effect of a sample.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: October 11, 2011
    Assignee: Kowa Co., Ltd.
    Inventor: Yoshio Hayashi
  • Patent number: 8034824
    Abstract: The present invention is to provide means to treat breast cancer and/or mastitis by topically administering a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent and allowing them efficiently to arrive into the mammary gland. The present invention provides an iontophoretic preparation for treating breast cancer and/or mastitis which contains a non-steroidal antiinflammatory analgetic agent and/or an anticancer agent as an active ingredient and has a donor to be applied on a nipple part for topical administration of the active ingredient from the nipple part to the mammary gland by application of electric potential.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: October 11, 2011
    Assignees: Kowa Co., Ltd., Tokyo University of Science Educational Foundation Administrative Organization
    Inventors: Toshio Inagi, Makoto Kanebako, Hiroshi Terada, Kimiko Makino, Masakazu Toi