Patents by Inventor Eita Emori

Eita Emori 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: 7772226
    Abstract: The present invention is related to compounds represented by the following formula, or salts or hydrates thereof wherein, T1 represents a 4- to 12-membered heterocyclic group containing one or two nitrogen atoms in the ring, which is a monocyclic or bicyclic structure that may have one or more substituents; X represents a C1-6 alkyl group which may have one or more substituents, or such; Z1 and Z2 each independently represent a nitrogen atom or a group represented by the formula —CR2—; R1 and R2 independently represent a hydrogen atom, a C1-6 alkyl group which may have one or more substituents, or a C1-6 alkoxy group which may have one or more substituents, or such. These are novel compounds that exhibit an excellent DPPIV-inhibiting activity.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: August 10, 2010
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Seiji Yoshikawa, Eita Emori, Fumiyoshi Matsuura, Richard Clark, Hironori Ikuta, Kazunobu Kira, Nobuyuki Yasuda, Tadashi Nagakura, Kazuto Yamazaki
  • Patent number: 7687664
    Abstract: The present invention provides novel carboxylic acid derivatives useful as an insulin sensitizer, a salt thereof or a hydrate of them, and a medicament comprising the derivative as the active ingredient. Specifically, it provides a carboxylic acid derivative represented by the following formula (I): (wherein Y, L, X, T, Z, U, M and W are defined in the specification) and a salt thereof, and ester thereof or a hydrate of them.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: March 30, 2010
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Fumiyoshi Matsuura, Eita Emori, Masanobu Shinoda, Richard Clark, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Sadakazu Miyashita, Taro Hihara
  • Patent number: 7544835
    Abstract: Carboxylic acid compound or salt or hydrate thereof useful as insulin sensitizer, represented by the formula wherein R1 represents hydrogen, hydroxyl, halogen, carboxyl, or C1-6 alkyl, L represents single bond or C1-6-alkylene, C2-6-alkenylene, or C2-6-alkynylene, M represents single bond or C1-6-alkylene, C2-6-alkenylene, or C2-6-alkynylene, T represents single bond, or C1-3-alkylene, C2-3-alkenylene, or C2-3-alkynylene, W represents carboxyl, represents single bond, X represents single bond, oxygen, —NRX1CQ1O—, —OCQ1NRX1—, —CQ1NRX1O—, ONRX1CQ1—, —Q2SO2—, or —SO2Q2—, Y represents 5- to 14-membered aromatic group, and ring Z represents 5- to 14-membered aromatic group.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: June 9, 2009
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Fumiyoshi Matsuura, Eita Emori, Masanobu Shinoda, Richard Clark, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Sadakazu Miyashita, Taro Hihara, Hitoshi Harada, Kaya Ohashi
  • Publication number: 20090018331
    Abstract: The present invention is related to compounds represented by the following formula, or salts or hydrates thereof wherein, T1 represents a 4- to 12-membered heterocyclic group containing one or two nitrogen atoms in the ring, which is a monocyclic or bicyclic structure that may have one or more substituents; X represents a C1-6 alkyl group which may have one or more substituents, or such; Z1 and Z2 each independently represent a nitrogen atom or a group represented by the formula —CR2—; R1 and R2 independently represent a hydrogen atom, a C1-6 alkyl group which may have one or more substituents, or a C1-6 alkoxy group which may have one or more substituents, or such. These are novel compounds that exhibit an excellent DPPIV-inhibiting activity.
    Type: Application
    Filed: August 28, 2008
    Publication date: January 15, 2009
    Applicant: Eisai R&D Management Co., Ltd.
    Inventors: Seiji Yoshikawa, Eita Emori, Fumiyoshi Matsuura, Richard Clark, Hironori Ikuta, Kazunobu Kira, Nobuyuki Yasuda, Tadashi Nagakura, Kazuto Yamazaki
  • Patent number: 7371777
    Abstract: The present invention provides a novel compound having an excellent PPAR agonist action. More specifically, it provides a compound represented by the following formula, a salt thereof, an ester thereof or a hydrate of them. Wherein a, b and c are the same as or different from one another and each represents 0 to 4; R1 to R6 are the same as or different from one another and each represents a hydrogen atom, a hydroxyl group, a cyano group, a halogen atom, etc.; A1 and A2 are the same as or different from each other and each represents a single bond, an oxygen atom, etc.; L, M and T each represent a single bond, an alkylene group having one to six carbon atoms, etc.; W represents a carboxyl group; the partial structure represented by the formula: represents a single bond or a double bond; X represents a single bond, an oxygen atom, —NRx1CQ1O—, etc.; Y represents Y1—Y2— (wherein Y1 represents a 5 to 14-membered aromatic ring having one to four substituents, etc.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: May 13, 2008
    Assignee: Eisai Co., Ltd.
    Inventors: Richard Clark, Fumiyoshi Matsuura, Eita Emori, Masanobu Shinoda, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Sadakazu Miyashita, Taro Hihara
  • Patent number: 7253178
    Abstract: The present invention provides a novel carboxylic acid derivative, a salt thereof or a hydrate of them which is useful as an insulin sensitizer, and a medicament comprising the derivative as the effective ingredient. More specifically, it provides a carboxylic acid compound represented by the formula (I), a salt thereof or a hydrate of them.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: August 7, 2007
    Assignee: Eisai Co., Ltd.
    Inventors: Hitoshi Harada, Masanobu Shinoda, Richard Clark, Fumiyoshi Matsuura, Eita Emori, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Sadakazu Miyashita, Taro Hihara
  • Patent number: 7244861
    Abstract: The present invention provides a medicament comprising a benzene compound useful as an insulin sensitizer, a salt thereof or a hydrate of them and a derivative of them as the active ingredient. Specifically, it provides a benzene compound represented by the following formula, a salt thereof or a hydrate of them. In the formula, X represents 1) a C6-10 aryl group which may have one or more substituents or 2) a 5- to 10-membered heteroaryl group which may have one or more substituents; Y represents a group represented by the formula: (in the above formulae, Ry1, Ry2 and Ry3 are the same as or different from one another and each represents a hydrogen atom, a halogen atom, a C1-6 alkyl group, a C1-6 alkoxy group, or a C3-7 cycloalkyl group) etc.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: July 17, 2007
    Assignee: Eisai Co., Ltd.
    Inventors: Fumiyoshi Matsuura, Eita Emori, Masanobu Shinoda, Richard Clark, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Sadakazu Miyashita, Taro Hihara
  • Patent number: 7074798
    Abstract: The present invention provides novel compounds exhibiting an excellent DPPIV inhibition effect. The compounds are represented by the formula: wherein, m is 0 or 1; n is 0; R31, R32, R33, R34, R35, R36, R37, R38, R39, R40, R41, and R42 each represent a hydrogen atom; X represents an alkynyl group, an aryl group, and such, which group may be substituted; and, R1 and R2 each independently represents a hydrogen atom, an alkyl group, an alkoxyl group, or such, or salts or hydrates thereof.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: July 11, 2006
    Assignee: Eisai Co., Ltd
    Inventors: Seiji Yoshikawa, Eita Emori, Fumiyoshi Matsuura, Richard Clark, Hironori Ikuta, Nobuyuki Yasuda, Tadashi Nagakura, Kazuto Yamazaki, Mika Aoki
  • Publication number: 20060100199
    Abstract: The present invention is related to compounds represented by the following formula, or salts or hydrates thereof wherein, T1 represents a 4- to 12-membered heterocyclic group containing one or two nitrogen atoms in the ring, which is a monocyclic or bicyclic structure that may have one or more substituents; X represents a C1-6 alkyl group which may have one or more substituents, or such; Z1 and Z2 each independently represent a nitrogen atom or a group represented by the formula —CR2—; R1 and R2 independently represent a hydrogen atom, a C1-6 alkyl group which may have one or more substituents, or a C1-6 alkoxy group which may have one or more substituents, or such.
    Type: Application
    Filed: June 3, 2003
    Publication date: May 11, 2006
    Inventors: Seiji Yoshikawa, Eita Emori, Eumiyoshi Matsuura, Richard Clark, Hironori Ikuta, Kazunobu Kira, Nobuyuki Yasuda, Tadashi Nagakura, Kazuto Yamazaki
  • Publication number: 20060063787
    Abstract: The present invention is related to compounds represented by the following formula, or salts or hydrates thereof wherein, T1 represents a 4- to 12-membered heterocyclic group containing one or two nitrogen atoms in the ring, which is a monocyclic or bicyclic structure that may have one or more substituents; X represents a C1-6 alkyl group which may have one or more substituents, or such; Z1 and Z2 each independently represent a nitrogen atom or a group represented by the formula —CR2—; R1 and R2 independently represent a hydrogen atom, a C1-6 alkyl group which may have one or more substituents, or a C1-6 alkoxy group which may have one or more substituents, or such. These are novel compounds that exhibit an excellent DPPIV-inhibiting activity.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 23, 2006
    Applicant: Eisai Co., Ltd.
    Inventors: Seiji Yoshikawa, Eita Emori, Fumiyoshi Matsuura, Richard Clark, Hironori Ikuta, Kazunobu Kira, Nobuyuki Yasuda, Tadashi Nagakura, Kazuto Yamazaki
  • Patent number: 6884821
    Abstract: Novel carboxylic acid derivatives of general formula (I), salts of the same, esters thereof, or hydrates of them, which are useful as insulin resistance improvers; and drugs containing the derivatives as the active ingredient. In said formula, R1 is hydrogen, hydroxyl, alkyl, or the like; L is a single bond, a double bond, alkylene, or the like; M is a single bond, alkylene, or the like; T is a single bond, alkylene, or the like; W is carboxyl, —CON(RW1)RW2, or the like; represents a single or double bond; X is oxygen, alkenylene, or the like; Y is an aromatic hydrocarbon group which may contain a heteroatom, or the like; and Z is an aromatic hydrocarbon group which may contain a heteroatom.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: April 26, 2005
    Assignee: Eisai Co., Ltd.
    Inventors: Masanobu Shinoda, Eita Emori, Fumiyoshi Matsuura, Toshihiko Kaneko, Norihito Ohi, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Sadakazu Miyashita, Taro Hibara, Takashi Seiki, Richard Clark, Hitoshi Harada
  • Publication number: 20050014833
    Abstract: The present invention provides a novel compound having an excellent PPAR agonist action. More specifically, it provides a compound represented by the following formula, a salt thereof, an ester thereof or a hydrate of them. Wherein a, b and c are the same as or different from one another and each represents 0 to 4; R1 to R6 are the same as or different from one another and each represents a hydrogen atom, a hydroxyl group, a cyano group, a halogen atom, etc.; A1 and A2 are the same as or different from each other and each represents a single bond, an oxygen atom, etc.; L, M and T each represent a single bond, an alkylene group having one to six carbon atoms, etc.; W represents a carboxyl group; the partial structure represented by the formula: ?represents a single bond or a double bond; X represents a single bond, an oxygen atom, —NRX1CQ1O—, etc.; Y represents Y1—Y2— (wherein Y1 represents a 5 to 14-membered aromatic ring having one to four substituents, etc.
    Type: Application
    Filed: August 16, 2002
    Publication date: January 20, 2005
    Inventors: Richard Clark, Fumiyoshi Matsuura, Eita Emori, Masanobu Shinoda, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Sadakazu Miyashita, Taro Hihara
  • Publication number: 20040214888
    Abstract: The present invention provides novel carboxylic acid derivatives useful as an insulin sensitizer, a salt thereof or a hydrate of them, and a medicament comprising the derivative as the active ingredient.
    Type: Application
    Filed: December 3, 2003
    Publication date: October 28, 2004
    Inventors: Fumiyoshi Matsuura, Eita Emori, Masanobu Shinoda, Richard Clark, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Sadakazu Miyashita, Taro Hihara
  • Publication number: 20040138271
    Abstract: The present invention provides a medicament comprising a benzene compound useful as an insulin sensitizer, a salt thereof or a hydrate of them and a derivative of them as the active ingredient. Specifically, it provides a benzene compound represented by the following formula, a salt thereof or a hydrate of them.
    Type: Application
    Filed: September 10, 2003
    Publication date: July 15, 2004
    Inventors: Fumiyoshi Matsuura, Eita Emori, Masanobu Shinoda, Richard Clark, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Sadakazu Miyashita, Taro Hihara
  • Publication number: 20040116328
    Abstract: The present invention is related to compounds represented by the following formula, or salts or hydrates thereof 1
    Type: Application
    Filed: June 6, 2003
    Publication date: June 17, 2004
    Applicant: Eisai Co., Ltd.
    Inventors: Seiji Yoshikawa, Eita Emori, Fumiyoshi Matsuura, Richard Clark, Hironori Ikuta, Kazunobu Kira, Nobuyuki Yasuda, Tadashi Nagakura, Kazuto Yamazaki
  • Publication number: 20040116708
    Abstract: The present invention provides a novel carboxylic acid derivative, a salt thereof or a hydrate of them which is useful as an insulin sensitizer, and a medicament comprising the derivative as the effective ingredient. More specifically, it provides a carboxylic acid compound represented by the formula (I), a salt thereof or a hydrate of them.
    Type: Application
    Filed: August 27, 2003
    Publication date: June 17, 2004
    Inventors: Hitoshi Harada, Masanobu Shinoda, Richard Clark, Fumiyoshi Matsuura, Eita Emori, Shunji Kasai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Sadakazu Miyashita, Taro Hihara
  • Publication number: 20040102634
    Abstract: The present invention provides a novel carboxylic acid compound, a salt thereof or a hydrate of them useful as an insulin sensitizer, and a medicament comprising the compound as an active ingredient. That is, the present invention provides a carboxylic acid compound represented by the following formula, a salt thereof, an ester thereof or a hydrate of them.
    Type: Application
    Filed: October 22, 2003
    Publication date: May 27, 2004
    Inventors: Fumiyoshi Matsuura, Eita Emori, Masanobu Shinoda, Richard Clark, Shunji Sakai, Hideki Yoshitomi, Kazuto Yamazaki, Takashi Inoue, Safakazu Miyashita, Taro Hihara, Hitoshi Harada, Kaya Ohashi
  • Publication number: 20040082570
    Abstract: The present invention provides novel compounds exhibiting an excellent DPPIV inhibition effect.
    Type: Application
    Filed: February 24, 2003
    Publication date: April 29, 2004
    Applicant: Eisai Co., Ltd.
    Inventors: Seiji Yoshikawa, Eita Emori, Fumiyoshi Matsuura, Richard Clark, Hironori Ikuta, Nobuyuki Yasuda, Tadashi Nagakura, Kazuto Yamazaki, Mika Aoki