Patents by Inventor Ikuo Kushida

Ikuo Kushida 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).

  • Publication number: 20090203916
    Abstract: An amorphous object of (3E)-1-[l(s)-1-(4-fluorophenyl)ethyl]-3-[3-methoxy-4-(4methyl-1H-imidazol-1-yl)benzylidene]piperidine-2-one, which is represented by the formula (1) and has A?-production inhibitory activity. The amorphous object has such satisfactory properties that it has excellent solubility, is stable, does not readily become a crystalline form, and has low hygroscopicity. It is hence suitable for use in pharmaceutical preparations.
    Type: Application
    Filed: October 25, 2005
    Publication date: August 13, 2009
    Inventors: Ikuo Kushida, Eriko Doi, Koichi Ito
  • Publication number: 20090048213
    Abstract: The present invention provides a most suitable prodrug of a cinnamide compound. The prodrug is represented by Formula (I) wherein Ra and Rb each denote a C1-6 alkyl group or the like; Xa denotes a methoxy group or a fluorine atom; Y denotes a phosphono group or the like; and A denotes a cyclic lactam derivative.
    Type: Application
    Filed: July 25, 2007
    Publication date: February 19, 2009
    Inventors: Teiji Kimura, Koki Kawano, Noritaka Kitazawa, Nobuaki Sato, Toshihiko Kaneko, Koichi Ito, Mamoru Takaishi, Ikuo Kushida
  • Publication number: 20090048448
    Abstract: The invention provides crystals of dihydrochloride monohydrate of the compound of the following formula having an A? production inhibiting effect which crystals are characterized by exhibiting a diffraction peak at an angle of diffraction (2?±0.2°) of 10.9° in powder X-ray diffractometry. Further, the invention also provides the compound in the form of various salts, crystal forms and amorphous forms which are suitable for the development of drugs.
    Type: Application
    Filed: November 17, 2006
    Publication date: February 19, 2009
    Inventors: Ikuo Kushida, Eriko Doi, Koichi Ito, Taiju Nakamura
  • Publication number: 20060194833
    Abstract: The invention relates to crystalline 1H-Imidazo[4,5-b]pyridin-5-amine, 7-[5-[(cyclohexylmethylamino)-methyl]-1H-indol-2-yl]-2-methyl, sulfate (1:1), trihydrate, E6070, its method of preparation, and its therapeutic uses. Pharmaceutical compositions containing crystalline E6070 and a pharmaceutically acceptable carrier represent one embodiment of the invention. The invention also relates to methods for treating an inflammatory disorder, an autoimmune disorder, or a proliferative disorder comprising the step of administering to a patient in need thereof a therapeutically effective amount of crystalline E6070.
    Type: Application
    Filed: February 1, 2006
    Publication date: August 31, 2006
    Applicant: Eisai Research Institute
    Inventors: Charles Chase, Ikuo Kushida
  • Patent number: 7084268
    Abstract: The present invention provides carbapenem hydrochloride trihydrate crystals, which are chemically stable, easily purified and useful as antimicrobial agents, a process for producing them, and a powdery charged preparation for injection containing them. That is, it provides carbapenem hydrochloride trihydrate crystals having a powdery X-ray diffraction pattern containing lattice distances (d) of 9.0, 4.1 and 2.8 ?, a process for producing them, and a powdery charged preparation for injection containing them.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: August 1, 2006
    Assignee: Eisai Co., Ltd.
    Inventors: Hiroyuki Chiba, Masahiko Tsujii, Astsushi Koiwa, Shin Sakurai, Akio Kayano, Hiroyuki Ishizuka, Hiroyuki Saito, Taiju Nakamura, Ikuo Kushida, Yasuyuki Suzuki, Takako Yoshiba, Kazuhide Ashizawa, Masahiro Sakurai, Eiichi Yamamoto
  • Publication number: 20060040916
    Abstract: The present invention provides carbapenem hydrochloride trihydrate crystals, which are chemically stable, easily purified and useful as antimicrobial agents, a process for producing them, and a powdery charged preparation for injection containing them. That is, it provides carbapenem hydrochloride trihydrate crystals having a powdery X-ray diffraction pattern containing lattice distances (d) of 9.0, 4.1 and 2.8 ?, a process for producing them, and a powdery charged preparation for injection containing them.
    Type: Application
    Filed: October 26, 2005
    Publication date: February 23, 2006
    Inventors: Hiroyuki Chiba, Masahiko Tsujii, Astsushi Koiwa, Shin Sakurai, Akio Kayano, Hiroyuki Ishizuka, Hiroyuki Saito, Taiju Nakamura, Ikuo Kushida, Yasuyuki Suzuki, Takako Yoshiba, Kazuhide Ashizawa, Masahiro Sakurai, Eiichi Yamamoto
  • Patent number: 6828155
    Abstract: The present invention provides an evaluation method and preparation process of injection containing a lipid A analog. Specifically, it provides, in an injection preparation containing a lipid A analog or a pharmacologically acceptable salt thereof, forecasting and evaluating methods of the pharmacokinetics of the lipid A analog, and quality evaluating method and preparation process of the injection, which each comprises measuring membrane fluidity and/or circular dichroism.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: December 7, 2004
    Assignee: Eisai Co., Ltd.
    Inventors: Kazuhiro Kaneko, Tomohiro Watanabe, Yasuyuki Asai, Yoshihisa Sano, Kiyomi Kikuchi, Ikuo Kushida, Kazuhide Ashizawa