Patents by Inventor Hiroki Fujieda

Hiroki Fujieda 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: 9586905
    Abstract: A compound having a V2 receptor agonistic activity is provided. Providing a pharmaceutical composition which contains, as an active ingredient, a compound represented by general formula (I) described below: [R1 is formula described below: (A is a lower alkylene group which may be substituted with lower alkyl group; R6 is a hydrogen atom; R7 is a hydroxyl group, an aromatic heterocyclic group which may be substituted with lower alkyl group, carbamoyl group); R2 is a hydrogen atom or lower alkyl group; R3 is lower alkyl group which may be substituted with 1-3 fluorine atoms, or halogen atom; R4 is a five-membered aromatic monocyclic heterocyclic group, five-membered non-aromatic monocyclic heterocyclic group, (provided each heterocyclic groups contain at least one nitrogen atom and may be substituted with a lower alkyl group); and R5 is a lower alkyl group, halogen atom], or pharmacologically acceptable salt thereof.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: March 7, 2017
    Assignee: SANWA KAGAKU KENKYUSHO CO., LTD.
    Inventors: Katsunori Kitamoto, Nobuyoshi Kasugai, Hiroyo Kataoka, Yasushi Ohsawa, Yuka Kuno, Hiroki Fujieda, Keita Sakai, Hiroki Nagano, Naoki Takahashi, Toru Izuchi, Mitsuaki Takeuchi, Daisuke Kurumazuka, Toshiyuki Miyazawa, Satoko Harada, Izumi Gotoh, Yukiyasu Asano, Yurie Yamada, Morio Okabe
  • Publication number: 20150291533
    Abstract: A compound having a V2 receptor agonistic activity is provided. Providing a pharmaceutical composition which contains, as an active ingredient, a compound represented by general formula (I) described below: [R1 is formula described below: (A is a lower alkylene group which may be substituted with lower alkyl group; R6 is a hydrogen atom; R7 is a hydroxyl group, an aromatic heterocyclic group which may be substituted with lower alkyl group, carbamoyl group); R2 is a hydrogen atom or lower alkyl group; R3 is lower alkyl group which may be substituted with 1-3 fluorine atoms, or halogen atom; R4 is a five-membered aromatic monocyclic heterocyclic group, five-membered non-aromatic monocyclic heterocyclic group, (provided each heterocyclic groups contain at least one nitrogen atom and may be substituted with a lower alkyl group); and R5 is a lower alkyl group, halogen atom], or pharmacologically acceptable salt thereof.
    Type: Application
    Filed: December 26, 2013
    Publication date: October 15, 2015
    Inventors: Katsunori Kitamoto, Nobuyoshi Kasugai, Hiroyo Kataoka, Yasushi Ohsawa, Yuka Kuno, Hiroki Fujieda, Keita Sakai, Hiroki Nagano, Naoki Takahashi, Toru Izuchi, Mitsuaki Takeuchi, Daisuke Kurumazuka, Toshiyuki Miyazawa, Satoko Harada, Izumi Gotoh, Yukiyasu Asano, Yurie Yamada, Morio Okabe
  • Patent number: 8796246
    Abstract: A main object of the invention is to provide a novel useful vitamin D3 derivative, which has an excellent vitamin D3 activity and, as compared with conventional vitamin D3 derivatives, has a relatively small amount of influence on the systemic calcium metabolism. The invention includes a 9,10-secopregnane derivative of the following general formula [1] and a pharmaceutical composition containing it as active ingredient. In the general formula [1], the following partial structure between the 16-position and the 17-position means a single bond or a double bond: Y is a single bond, an alkylene, an alkenylene or phenylene; R1 and R2 are the same or different, each represents hydrogen, an alkyl or a cycloalkyl; or R1 and R2, taken together with the adjacent carbon atom, form a cycloalkyl; R3 is hydrogen or methyl; Z is hydrogen, hydroxy or —NR11R12.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: August 5, 2014
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Hiroki Fujieda, Hironori Otsu, Shoji Yasufuku, Masaaki Shirai
  • Publication number: 20140095054
    Abstract: At the time of shifting a fuel property value associated with a first imaginary passage cell as a fuel property value associated with a second imaginary passage cell located on the downstream side thereof, the fuel property value associated with the second imaginary passage cell is corrected in a controller by computing a difference between the fuel property value associated with the first imaginary passage cell and the fuel property value associated with the second imaginary passage cell and multiplying the difference by a correction coefficient. A stoichiometric air/fuel ratio is computed in the controller based on the fuel property value, which is associated with a last one of the imaginary passage cells. Fuel injection of an injector is controlled by the controller based on a computed injection quantity of fuel, which is computed based on the stoichiometric air/fuel ratio.
    Type: Application
    Filed: December 5, 2013
    Publication date: April 3, 2014
    Applicants: NIPPON SOKEN, INC., DENSO CORPORATION
    Inventors: Tetsuro SERAI, Noriyasu AMANO, Hiroki FUJIEDA, Hiroshi NAKAMURA, Akikazu UCHIDA
  • Publication number: 20120101137
    Abstract: The object of the present invention is to provide a compound having a glucokinase-activating effect. A pharmaceutical composition comprising a compound represented by the general formula (I) or a pharmaceutically acceptable salt thereof as an active ingredient: wherein X means a nitrogen atom or CR6, wherein R6 means a hydrogen atom or a halogen atom; R1 means a hydrogen atom, a C1-C6 alkyl group, a C1-C6 alkoxy group or a C1-C6 alkylthio group; R2 means a hydrogen atom or a fluorine atom; R3 means a hydrogen atom or a C1-C6 alkyl group; and one of R4 and R5 means a hydrogen atom or a C1-C6 alkyl group, and the other means a C1-C6 alkylenecarboxylic acid, a C1-C6 alkylsulfonyl group, a C1-C6 alkylcarbonyl group, or CONH2.
    Type: Application
    Filed: June 26, 2010
    Publication date: April 26, 2012
    Applicant: SANWA KAGAKU KENKYUSHO CO., LTD.
    Inventors: Tokuyuki Yamashita, Kaori Chikamatsu, Naoki Takahashi, Hisakazu Iwai, Masakazu Kogami, Masao Sakairi, Nobuhide Watanabe, Hiroki Fujieda, Daisuke Kataoka, Mitsuhiro Makino, Noriyasu Kato, Toshiyuki Miyazawa, Kazushige Nagai, Nobuyoshi Kasugai, Hiroyo Kataoka, Naoki Hiramatsu, Nobuaki Tsuruta, Yurie Yamada, Mika Miyoshi, Sei Murakami, Izumi Goto, Tohru Izuchi, Kimie Suzuki, Satoko Harada, Martin Lang, Markus Hans-Juergen Seifert, Kristina Kaarina Wolf
  • Publication number: 20100130454
    Abstract: A novel useful vitamin D3 derivative which is reduced in influence on systemic calcium metabolism while retaining excellent vitamin D3 activity. The derivative is a 9,10-secopregnane derivative represented by the following general formula [1]. Also provided is a medicinal composition containing the derivative as an active ingredient. In the general formula [1], Y represents (1) a single bond, (2) alkylene (3) alkenylene, or (4) phenylene; R1 and R2 are the same or different and each represents (1) hydrogen, (2) alkyl, or (3) cycloalkyl, or R1 and R2 in combination represent cycloalkyl in cooperation with the adjacent carbon atom; R3 represents hydrogen or methyl; and Z represents (1) hydrogen, (2) hydroxy, or (3) —NR11R12.
    Type: Application
    Filed: December 5, 2005
    Publication date: May 27, 2010
    Applicant: NIPPON SHINYAKU CO., LTD.
    Inventors: Hiroki Fujieda, Hironori Otsu, Shoji Yasufuku
  • Publication number: 20100059020
    Abstract: At the time of shifting a fuel property value associated with a first imaginary passage cell as a fuel property value associated with a second imaginary passage cell located on the downstream side thereof, the fuel property value associated with the second imaginary passage cell is corrected in a controller by computing a difference between the fuel property value associated with the first imaginary passage cell and the fuel property value associated with the second imaginary passage cell and multiplying the difference by a correction coefficient. A stoichiometric air/fuel ratio is computed in the controller based on the fuel property value, which is associated with a last one of the imaginary passage cells. Fuel injection of an injector is controlled by the controller based on a computed injection quantity of fuel, which is computed based on the stoichiometric air/fuel ratio.
    Type: Application
    Filed: September 1, 2009
    Publication date: March 11, 2010
    Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.
    Inventors: Tetsuro Serai, Noriyasu Amano, Hiroki Fujieda, Hiroshi Nakamura, Akikazu Uchida
  • Publication number: 20100016263
    Abstract: A main object of the invention is to provide a novel useful vitamin D3 derivative, which has an excellent vitamin D3 activity and, as compared with conventional vitamin D3 derivatives, has a relatively small amount of influence on the systemic calcium metabolism. The invention includes a 9,10-secopregnane derivative of the following general formula [1] and a pharmaceutical composition containing it as active ingredient. In the general formula [1], the following partial structure between the 16-position and the 17-position means a single bond or a double bond: Y is a single bond, an alkylene, an alkenylene or phenylene; R1 and R2 are the same or different, each represents hydrogen, an alkyl or a cycloalkyl; or R1 and R2, taken together with the adjacent carbon atom, form a cycloalkyl; R3 is hydrogen or methyl; Z is hydrogen, hydroxy or —NR11R12.
    Type: Application
    Filed: June 1, 2007
    Publication date: January 21, 2010
    Applicant: NIPPON SHINYAKU CO., LTD.
    Inventors: Hiroki Fujieda, Hironori Otsu, Shoji Yasufuku, Masaaki Shirai