Patents Assigned to Kaken Pharmaceutical Co., Ltd.
  • Patent number: 9855257
    Abstract: There are provided 4-alkynylimidazole derivatives represented by the following general formula (I) or pharmaceutically acceptable salts thereof; the derivatives have a superior EP4 receptor antagonistic action and are useful as pharmaceuticals for the treatment of diseases associated with the EP4 receptor, for example, as anti-inflammatory and/or analgesic drugs for inflammatory diseases and diseases that involve various kinds of pains, and further as pharmaceuticals for the treatment of immune diseases that result from inflammations as evoked by tissue destruction due to the activation of Th1 cells and/or Th17 cells:
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: January 2, 2018
    Assignee: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Satoru Ikegami, Atsushi Watanabe, Kimio Hirano, Tadashi Ohyama
  • Publication number: 20170128431
    Abstract: There are provided 4-alkynylimidazole derivatives represented by the following general formula (I) or pharmaceutically acceptable salts thereof; the derivatives have a superior EP4 receptor antagonistic action and are useful as pharmaceuticals for the treatment of diseases associated with the EP4 receptor, for example, as anti-inflammatory and/or analgesic drugs for inflammatory diseases and diseases that involve various kinds of pains, and further as pharmaceuticals for the treatment of immune diseases that result from inflammations as evoked by tissue destruction due to the activation of Th1 cells and/or Th17 cells:
    Type: Application
    Filed: January 24, 2017
    Publication date: May 11, 2017
    Applicant: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Satoru IKEGAMI, Atsushi WATANABE, Kimio HIRANO, Tadashi OHYAMA
  • Patent number: 9593081
    Abstract: There are provided 4-alkynylimidazole derivatives represented by the following general formula (I) or pharmaceutically acceptable salts thereof; the derivatives have a superior EP4 receptor antagonistic action and are useful as pharmaceuticals for the treatment of diseases associated with the EP4 receptor, for example, as anti-inflammatory and/or analgesic drugs for inflammatory diseases and diseases that involve various kinds of pains, and further as pharmaceuticals for the treatment of immune diseases that result from inflammations as evoked by tissue destruction due to the activation of Th1 cells and/or Th17 cells:
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: March 14, 2017
    Assignee: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Satoru Ikegami, Atsushi Watanabe, Kimio Hirano, Tadashi Ohyama
  • Patent number: 9580444
    Abstract: Provided are a polycyclic pyrazolinone derivative indicated by general formula (1) (in the formula, R1, X1, X2, X3, and Y indicate the definitions provided in the Specification) and a herbicide comprising same as effective component thereof.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 28, 2017
    Assignees: Sagami Chemical Research Institute, Kaken Pharmaceutical Co., Ltd.
    Inventors: Osamu Kobayashi, Naoko Niikura, Tomoko Inoue, Satoshi Mizuta, Reiko Takatsuna, Kenji Hirai, Kentaro Shirouzu, Miyoo Obata
  • Patent number: 9518041
    Abstract: Provided is (+)-5-(3,4-difluorophenyl)-5-[(3-methyl-2-oxopyridin-1(2H)-yl)methyl]imidazolidine-2,4-dione or a salt thereof. Also provided is a drug containing as the active ingredient (+)-5-(3,4-difluorophenyl)-5-[(3-methyl-2-oxopyridin-1(2H)-yl)methyl]imidazolidine-2,4-dione or a salt thereof.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: December 13, 2016
    Assignee: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Noriyuki Kamei, Daigo Kamimura, Yoshitake Sumikawa, Shota Tokuoka
  • Publication number: 20160340349
    Abstract: General formula (I): The present invention pertains to: a pyridone derivate or a salt thereof represented by general formula (I); or a medicine containing the pyridone derivative or salt thereof as an active ingredient. [In the formula, ring A, R1, R2, R3 and R4 are specific groups.
    Type: Application
    Filed: August 9, 2016
    Publication date: November 24, 2016
    Applicant: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Noriyuki KAMEI, Yoshitake SUMIKAWA, Daigo KAMIMURA, Shingo TODO, Takuya YAMADA, Shota TOKUOKA
  • Patent number: 9447072
    Abstract: General formula (I): The present invention pertains to: a pyridone derivate or a salt thereof represented by general formula (I); or a medicine containing the pyridone derivative or salt thereof as an active ingredient. [In the formula, ring A, R1, R2, R3 and R4 are specific groups.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: September 20, 2016
    Assignee: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Noriyuki Kamei, Yoshitake Sumikawa, Daigo Kamimura, Shingo Todo, Takuya Yamada, Shota Tokuoka
  • Publication number: 20160168540
    Abstract: Provided is a composition for maintaining a function of platelets, having as an active ingredient a pyridone derivative represented by the following general formula (I), or a salt thereof (in the formula, ring A, R1, R2, R3, and R4 represent the definitions given in the description).
    Type: Application
    Filed: June 6, 2014
    Publication date: June 16, 2016
    Applicants: KAKEN PHARMACEUTICAL CO., LTD., KYOTO UNIVERSITY
    Inventors: Shinji HIRATA, Takahiko MURATA, Koji ETO
  • Publication number: 20160130248
    Abstract: Provided is (+)-5-(3,4-difluorophenyl)-5-[(3-methyl-2-oxopyridin-1(2H)-yl)methyl]imidazolidine-2,4-dione or a salt thereof. Also provided is a drug containing as the active ingredient (+)-5-(3,4-difluorophenyl)-5-[(3-methyl-2-oxopyridin-1(2H)-yl)methyl]imidazolidine-2,4-dione or a salt thereof.
    Type: Application
    Filed: June 6, 2014
    Publication date: May 12, 2016
    Applicant: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Noriyuki KAMEI, Daigo KAMIMURA, Yoshitake SUMIKAWA, Shota TOKUOKA
  • Publication number: 20160130232
    Abstract: There are provided 4-alkynylimidazole derivatives represented by the following general formula (I) or phamaceutically acceptable salts thereof; the derivatives have a superior EP4 receptor antagonistic action and are useful as pharmaceuticals for the treatment of diseases associated with the EP4 receptor, for example, as anti-inflammatory and/or analgesic drugs for inflammatory diseases and diseases that involve various kinds of pains, and further as pharmaceuticals for the treatment of immune diseases that result from inflammations as evoked by tissue destruction due to the activation of Th1 cells and/or Th17 cells:
    Type: Application
    Filed: June 12, 2014
    Publication date: May 12, 2016
    Applicant: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Satoru IKEGAMI, Atsushi WATANABE, Kimio HIRANO, Tadashi OHYAMA
  • Patent number: 9301917
    Abstract: Provided is a pharmaceutical composition, including a drug and a collagen, in which the composition is satisfactory in handleability and has sustained-release property. The sustained-release pharmaceutical composition includes: a drug; a collagen; and at least one kind of sugar selected from monosaccharides, disaccharides, trisaccharides, and tetrasaccharides. The inventors of the present invention have found that the in vivo administration of a collagen solution containing a sugar results in the gelation of a collagen. Based on this finding, the inventors have found that a composition containing a drug, a collagen, and a sugar can control the release rate of the drug, and such composition can be used as a sustained-release pharmaceutical composition.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 5, 2016
    Assignees: Kyoto University, Kyoto Prefectural Public University Corporation, Kaken Pharmaceutical Co., Ltd., Koken Co., Ltd.
    Inventors: Masanori Fukushima, Hiroaki Matsubara, Satoaki Matoba, Shigeki Hijikata, Yu Aso, Tsutomu Sato
  • Publication number: 20160024110
    Abstract: Provided are a polycyclic pyrazolinone derivative indicated by general formula (1) (in the formula, R1, X1, X2, X3, and Y indicate the definitions provided in the Specification) and a herbicide comprising same as effective component thereof.
    Type: Application
    Filed: March 14, 2014
    Publication date: January 28, 2016
    Applicants: KAKEN PHARMACEUTICAL CO., LTD., SAGAMI CHEMICAL RESEARCH INSTITUTE
    Inventors: Osamu KOBAYASHI, Naoko NIIKURA, Tomoko INOUE, Satoshi MIZUTA, Reiko TAKATSUNA, Kenji HIRAI, Kentaro SHIROUZU, Miyoo OBATA
  • Publication number: 20150166506
    Abstract: General formula (I): The present invention pertains to: a pyridone derivate or a salt thereof represented by general formula (I); or a medicine containing the pyridone derivative or salt thereof as an active ingredient. [In the formula, ring A, R1, R2, R3 and R4 are specific groups.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 18, 2015
    Applicant: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Noriyuki Kamei, Yoshitake Sumikawa, Daigo Kamimura, Shingo Todo, Takuya Yamada, Shota Tokuoka
  • Patent number: 9034922
    Abstract: A composition for maintaining a function of platelets, the composition comprising, as an active ingredient, a compound represented by the following general formula (I) or a salt thereof, or a solvate thereof: wherein X represents a phenylene group; Y represents any one of a hydrogen atom and —(CH2)mR1; wherein m represents an integer of any one of 0 to 4; and R1 is any one of —NR5COR2, —NR5SO2R2, and —NR3R4; wherein R2 represents any one of a C1 to C6 alkyl group, an aryl group, a C1 to C6 alkoxy group, and the like; R3 and R4 represent a C1 to C6 alkyl group or the like; and R5 represents any one of a hydrogen atom, a C1 to C6 alkyl group, and the like; and Z represents any one of a hydrogen atom and a C1 to C6 alkyl group.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: May 19, 2015
    Assignees: THE UNIVERSITY OF TOKYO, KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Koji Eto, Ryoko Ohnishi, Hiromitsu Nakauchi, Takahiko Murata
  • Patent number: 9034906
    Abstract: Provided is a compound represented by the formula (1): wherein R1 and R2 are each independently a hydrogen atom or a straight chain alkyl group having a carbon number of 1-3, R3 is a hydrogen atom, an alkyl group having a carbon number of 1-4, an alkoxyalkyl group, an aryl group, a halogen atom or a haloalkyl group, or a pharmaceutically acceptable salt thereof, which has, unlike known PGI2 analogs, a selective EP4 agonist action, and a medicament containing the compound, which is useful for the prophylaxis and/or treatment of immune diseases, diseases of the digestive tract, cardiovascular diseases, cardiac diseases, respiratory diseases, neurological diseases, ophthalmic diseases, renal diseases, hepatic diseases, bone diseases, skin diseases and the like.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: May 19, 2015
    Assignees: Asahi Glass Company, Limited, Kaken Pharmaceutical Co., Ltd.
    Inventors: Takahiko Murata, Masahiro Amakawa, Shin Teradaira, Yasushi Matsumura, Katsuhiko Konishi
  • Patent number: 8889155
    Abstract: The present invention provides a stable gel composition for mycosis treatment, with increased absorption and permeation of (2R,3R)-2-(2,4-difluorophenyl)-3-(4-methylenepiperidin -1-yl)-1-(1H-1,2,4-triazol-1-yl)-butan-2-ol into a target site (skin and nail). The gel composition for mycosis treatment, comprises (2R,3R)-2-(2,4-difluorophenyl)-3-(4-methylenepiperidin-1-yl) -1-(1H-1,2,4-triazol-1-yl)-butan-2-ol or an acid addition salt thereof, a lower alcohol, a polyhydric alcohol and a gel-forming polymer. The gel composition of the present invention increases permeation of the above compound into a target site and into the nail. The gel composition of the present invention allows the drug to be directly and rapidly absorbed and permeated into a target site in a constant manner, for mycosis treatment, particularly onychomycosis treatment.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: November 18, 2014
    Assignee: Kaken Pharmaceutical Co., Ltd.
    Inventors: Tomohiro Okumura, Akiko Ochiai, Keizo Sakuda, Yoshiyuki Tatsumi
  • Patent number: 8877787
    Abstract: Provided is a compound represented by the formula (1): wherein R1 and R2 are each independently a hydrogen atom or a straight chain alkyl group having a carbon number of 1-3, R3 is a hydrogen atom, an alkyl group having a carbon number of 1-4, an alkoxyalkyl group, an aryl group, a halogen atom or a haloalkyl group, or a pharmaceutically acceptable salt thereof, which has, unlike known PGI2 analogs, a selective EP4 agonist action, and a medicament containing the compound, which is useful for the prophylaxis and/or treatment of immune diseases, diseases of the digestive tract, cardiovascular diseases, cardiac diseases, respiratory diseases, neurological diseases, ophthalmic diseases, renal diseases, hepatic diseases, bone diseases, skin diseases and the like.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: November 4, 2014
    Assignees: Asahi Glass Company, Limited, Kaken Pharmaceutical Co., Ltd.
    Inventors: Takahiko Murata, Masahiro Amakawa, Shin Teradaira, Yasushi Matsumura, Katsuhiko Konishi
  • Patent number: 8871942
    Abstract: An object is to provide a process for producing the compound of formula 1 in higher yield by the ring-opening addition reaction of epoxytriazole with amine under mild conditions without using a large excess of 4-methylenepiperidine. The process for producing (2R,3R)-2-(2,4-difluorophenyl)-3-(4-methylenepiperidin-1-yl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol or an acid addition salt thereof comprises reacting (2R,3S)-2-(2,4-difluorophenyl)-3-methyl-2-[(1H-1,2,4-triazol-1-yl)methyl]oxirane with an acid addition salt of 4-methylenepiperidine in a reaction solvent in the presence of a hydroxide of an alkali metal or an alkaline earth metal selected from the group consisting of lithium, sodium, calcium, and strontium, or a hydrate thereof.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: October 28, 2014
    Assignee: Kaken Pharmaceutical Co., Ltd.
    Inventors: Mitsuo Mimura, Masahito Watanabe, Nobuo Ishiyama, Takuya Yamada
  • Publication number: 20140257208
    Abstract: To provide a solution applicator with which irritation on an affected part of a patient may be reduced even when a solution is used. According to the present invention, an applicator comprises a solution container which comprises an opening, and a columnar brush member formed by bundling synthetic fibers in a columnar shape. The columnar brush member is disposed at the opening of the solution container, a tip portion of the columnar brush member at an outside of the solution container has a fan shape expanding in a perpendicular lateral direction against a pillar axial lengthwise direction, and a thickness of the fan-shaped tip portion of the columnar brush member decreases in a perpendicular lengthwise direction against the pillar axial lengthwise direction toward the tip portion of the columnar brush member.
    Type: Application
    Filed: July 4, 2012
    Publication date: September 11, 2014
    Applicant: KAKEN PHARMACEUTICAL CO., LTD.
    Inventors: Masahiro Ueta, Ryouhei Sakaguchi, Ryouji Takei, Katsumi Sasama, Katsuya Taguchi
  • Patent number: 8765814
    Abstract: A compound represented by the following general formula (I) which has ADAM17 inhibitory activity, or a salt thereof, or a solvate thereof: wherein X represents a phenylene group; Y represents a hydrogen atom, —(CH2)mR1 or the like; R1 represents —NR5COR2, —NR5SO2R2 or —NR3R4; R2 represents a C1-C6 alkyl group, an aryl group, or a C1-C6 alkoxy group; R3 and R4 represent a C1-C6 alkyl group and the like; R5 represents a hydrogen atom or a C1-C6 alkyl group or the like; m indicates an integer of from 0 to 4; and Z represents a hydrogen atom or a C1-C6 alkyl group.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: July 1, 2014
    Assignee: Kaken Pharmaceutical Co., Ltd.
    Inventors: Kentaro Kawai, Shigeru Miyamoto, Masanao Shimano, Makoto Haino