Patents by Inventor Toshiharu Arai

Toshiharu Arai 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: 8273766
    Abstract: The present invention relates a specific tetrahydroisoquinoline compound which is useful as a chemokine receptor type 3 (CCR3) antagonist, and a pharmaceutical composition comprising the same as an active ingredient. The tetrahydroisoquinoline compound of the present invention is useful for the treatment or prevention of a disease in which CCR3 participates.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: September 25, 2012
    Assignee: Kowa Company, Ltd.
    Inventors: Seiichi Sato, Junya Tagashira, Shunji Takemura, Yoshiharu Miyake, Tetsuya Ishikawa, Toshiharu Arai, Takahiro Ito, Takuya Hara
  • Patent number: 8012989
    Abstract: A compound represented by the following general formula (I), wherein R1, R2, R3, R4 and R5 represent hydrogen atom, a halogen atom, a lower alkyl group and the like, R6 represents an alkyl group, a cycloalkyl group and the like, R7 and R8 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl)(lower alkyl) group and the like, R9 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, R10 and R11 represent hydrogen atom, a lower alkyl group, a lower alkoxy group, a halo(lower alkyl) group and the like, and A represents a heterocyclic ring constituted by 6 to 10 atoms, which has potent inhibitory activity on cholesterol ester transfer protein (CETP).
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: September 6, 2011
    Assignee: Kowa Company, Ltd.
    Inventors: Tadaaki Ohgiya, Toru Miura, Ayumu Okuda, Toshiharu Arai, Koichi Yamazaki, Taro Aoki, Katsutoshi Miyosawa, Haruki Shibata, Kimiyuki Shibuya
  • Publication number: 20100249148
    Abstract: A compound represented by the following general formula (I), wherein R1, R2, R3, R4 and R5 represent hydrogen atom, a halogen atom, a lower alkyl group and the like, R6 represents an alkyl group, a cycloalkyl group and the like, R7 and R8 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl)(lower alkyl) group and the like, R9 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, R10 and R11 represent hydrogen atom, a lower alkyl group, a lower alkoxy group, a halo(lower alkyl) group and the like, and A represents a heterocyclic ring constituted by 6 to 10 atoms, which has potent inhibitory activity on cholesterol ester transfer protein (CETP).
    Type: Application
    Filed: June 15, 2010
    Publication date: September 30, 2010
    Applicant: KOWA COMPANY, LTD.
    Inventors: Tadaaki OHGIYA, Toru MIURA, Ayumu OKUDA, Toshiharu ARAI, Koichi YAMAZAKI, Taro AOKI, Katsutoshi MIYOSAWA, Haruki SHIBATA, Kimiyuki SHIBUYA
  • Patent number: 7790737
    Abstract: A compound represented by the following general formula (I), wherein R1, R2, R3, R4 and R5 represent hydrogen atom, a halogen atom, a lower alkyl group and the like, R6 represents an alkyl group, a cycloalkyl group and the like, R7 and R8 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl)(lower alkyl) group and the like, R9 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, R10 and R11 represent hydrogen atom, a lower alkyl group, a lower alkoxy group, a halo(lower alkyl) group and the like, and A represents a heterocyclic ring constituted by 6 to 10 atoms, which has potent inhibitory activity on cholesterol ester transfer protein (CETP).
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: September 7, 2010
    Assignee: Kowa Company, Ltd.
    Inventors: Tadaaki Ohgiya, Toru Miura, Ayumu Okuda, Toshiharu Arai, Koichi Yamazaki, Taro Aoki, Katsutoshi Miyosawa, Haruki Shibata, Kimiyuki Shibuya
  • Patent number: 7750019
    Abstract: A compound represented by the following general formula (I) or a salt thereof, or a solvate thereof: (wherein R1, R2, R3, R4 and R5 are the same or different, and represent hydrogen atom, a halogen atom, a lower alkyl group etc., R6, R7 and R8 are the same or different, and represent hydrogen atom, a halogen atom, a lower alkyl group etc., R9 and R10 are the same or different, and represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl)(lower alkyl) group etc., and R11 represents hydrogen atom, a halogen atom, a lower alkoxy group, a (lower alkyl)thio(lower alkoxy) group, a (lower alkyl)sulfinyl(lower alkoxy) group, a (lower alkyl)sulfonyl(lower alkoxy) group etc.), which has potent inhibitory activity on CETP.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: July 6, 2010
    Assignee: Kowa Company, Ltd.
    Inventors: Tadaaki Ohgiya, Toru Miura, Ayumu Okuda, Toshiharu Arai, Koichi Yamazaki, Taro Aoki, Katsutoshi Miyosawa, Haruki Shibata, Kimiyuki Shibuya
  • Publication number: 20100120844
    Abstract: The present invention relates a specific tetrahydroisoquinoline compound which is useful as a chemokine receptor type 3 (CCR3) antagonist, and a pharmaceutical composition comprising the same as an active ingredient. The tetrahydroisoquinoline compound of the present invention is useful for the treatment or prevention of a disease in which CCR3 participates.
    Type: Application
    Filed: April 3, 2008
    Publication date: May 13, 2010
    Applicant: KOWA COMPANY, LTD.
    Inventors: Seiichi Sato, Junya Tagashira, Shunji Takemura, Yoshiharu Miyake, Tetsuya Ishikawa, Toshiharu Arai, Takahiro Ito, Takuya Hara
  • Patent number: 7659271
    Abstract: A compound represented by the following general formula (I), wherein R1, R2, R3, R4 and R5 represent hydrogen atom, a halo(lower alkyl) group, cyano group and the like, R6 represents an alkyl group, a cycloalkyl group and the like, R7, R8, R9 and R10 represent hydrogen atom, a halogen atom, a lower alkyl group, a halo(lower alkyl) group and the like, R11 and R12 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl) (lower alkyl) group and the like, and R13 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, which has potent inhibitory activity on cholesterol ester transfer protein (CETP).
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: February 9, 2010
    Assignee: Kowa Company, Ltd.
    Inventors: Tadaaki Ohgiya, Toru Miura, Ayumu Okuda, Toshiharu Arai, Koichi Yamazaki, Taro Aoki, Katsutoshi Miyosawa, Haruki Shibata, Kimiyuki Shibuya
  • Patent number: 7623779
    Abstract: A phase difference sensor is arranged toward a target object such that the sensor can rotate at least 180° on its sensor optical axis. As the phase difference sensor rotates, the angle of a sensor viewing field is changed, and the distance to the target object is correctly computed using results measured before and after the change in the angle.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: November 24, 2009
    Assignee: Casio Computer Co., Ltd.
    Inventors: Hideaki Inoue, Toshiharu Arai
  • Publication number: 20090082352
    Abstract: A compound represented by the following general formula (I), wherein R1, R2, R3, R4 and R5 represent hydrogen atom, a halo(lower alkyl) group, cyano group and the like, R6 represents an alkyl group, a cycloalkyl group and the like, R7, R8, R9 and R10 represent hydrogen atom, a halogen atom, a lower alkyl group, a halo(lower alkyl) group and the like, R11 and R12 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl) (lower alkyl) group and the like, and R13 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, which has potent inhibitory activity on cholesterol ester transfer protein (CETP).
    Type: Application
    Filed: April 10, 2008
    Publication date: March 26, 2009
    Applicant: KOWA COMPANY, LTD.
    Inventors: Tadaaki OHGIYA, Toru MIURA, Ayumu OKUDA, Toshiharu ARAI, Koichi YAMAZAKI, Taro AOKI, Katsutoshi MIYOSAWA, Haruki SHIBATA, Kimiyuki SHIBUYA
  • Publication number: 20090062306
    Abstract: A compound represented by the following general formula (I), wherein R1, R2, R3, R4 and R5 represent hydrogen atom, a halogen atom, a lower alkyl group and the like, R6 represents an alkyl group, a cycloalkyl group and the like, R7 and R8 represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl)(lower alkyl) group and the like, R9 represents hydrogen atom, a halogen atom, a lower alkoxy group and the like, R10 and R11 represent hydrogen atom, a lower alkyl group, a lower alkoxy group, a halo(lower alkyl) group and the like, and A represents a heterocyclic ring constituted by 6 to 10 atoms, which has potent inhibitory activity on cholesterol ester transfer protein (CETP).
    Type: Application
    Filed: March 11, 2008
    Publication date: March 5, 2009
    Applicant: KOWA COMPANY, LTD.
    Inventors: Tadaaki OHGIYA, Toru MIURA, Ayumu OKUDA, Toshiharu ARAI, Koichi YAMAZAKI, Taro AOKI, Katsutoshi MIYOSAWA, Haruki SHIBATA, Kimiyuki SHIBUYA
  • Publication number: 20090054474
    Abstract: A compound represented by the following general formula (I) or a salt thereof, or a solvate thereof: (wherein R1, R2, R3, R4 and R5 are the same or different, and represent hydrogen atom, a halogen atom, a lower alkyl group etc., R6, R7 and R8 are the same or different, and represent hydrogen atom, a halogen atom, a lower alkyl group etc., R9 and R10 are the same or different, and represent hydrogen atom, a lower alkyl group, a (lower cycloalkyl)(lower alkyl) group etc., and R11 represents hydrogen atom, a halogen atom, a lower alkoxy group, a (lower alkyl)thio(lower alkoxy) group, a (lower alkyl)sulfinyl(lower alkoxy) group, a (lower alkyl)sulfonyl(lower alkoxy) group etc.), which has potent inhibitory activity on CETP.
    Type: Application
    Filed: August 7, 2007
    Publication date: February 26, 2009
    Applicant: Kowa Company, Ltd.
    Inventors: Tadaaki OHGIYA, Toru MIURA, Ayumu OKUDA, Toshiharu ARAI, Koichi YAMAZAKI, Taro AOKI, Katsutoshi MIYOSAWA, Haruki SHIBATA, Kimiyuki SHIBUYA
  • Publication number: 20070071431
    Abstract: A phase difference sensor is arranged toward a target object such that the sensor can rotate at least 180° on its sensor optical axis. As the phase difference sensor rotates, the angle of a sensor viewing field is changed, and the distance to the target object is correctly computed using results measured before and after the change in the angle.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 29, 2007
    Inventors: Hideaki Inoue, Toshiharu Arai
  • Patent number: 4029877
    Abstract: In a process for preparing a polyolefin without separation of catalyst residues by polymerizing an olefin in the pres ence of a Ziegler catalyst having high catalytic activity, in an inert gas sealing system; an improvement comprises separating the polyolefin containing the catalyst residue from the polymerization mixture, and contacting the polyolefin containing the catalyst residue with a weak reactive gas of oxygen and/or steam diluted with an inert gas.
    Type: Grant
    Filed: June 10, 1975
    Date of Patent: June 14, 1977
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Hirohisa Yoshiura, Toshiharu Arai, Masao Miyake, Yoshikane Furuya, Seiji Onogi, Tetsushi Kamizono
  • Patent number: 3988972
    Abstract: A gas shielding method for a fuel exchange pool in which, in order to shield radioactive gas generated in said fuel exchange pool by forming a gas curtain flowing in one direction above the fuel pool, both a ratio between a blown-out quantity and a sucked quantity of the gas flow and a temperature difference between the gas and the water in the fuel pool are suitably selected.
    Type: Grant
    Filed: January 15, 1975
    Date of Patent: November 2, 1976
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Goto, Toshiharu Arai, Tadao Sekiguchi, Hideo Hara
  • Patent number: 3970632
    Abstract: A polymer composition, which comprises a polymer containing a quinophthalone pigment having the formula ##SPC1##Wherein the quinoline ring can have a substituent selected from the group consisting of halogen, lower alkyl, lower alkoxy, and carboxyl, and the ring A is a benzene ring or a naphthalene ring which can have a substituent selected from the group consisting of halogen, and --COW wherein W represents hydroxyl, lower alkoxyl or amino; and 0.005-5% by weight of a piperidine type or imidazolidine type ultraviolet absorbing agent.
    Type: Grant
    Filed: November 27, 1974
    Date of Patent: July 20, 1976
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Hirohisa Yoshiura, Toshiharu Arai, Masao Miyake, Kiyoshi Enriki