Patents by Inventor Yutaka Ikeuchi

Yutaka Ikeuchi 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: 9169277
    Abstract: The present invention generally relates to methods for the synthesis of catalysts, including epoxidation catalysts, and related compounds and catalyst compositions. Embodiments described herein may provide efficient processes for providing catalysts (e.g., epoxidation catalysts) in large quantities and using simplified methods.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: October 27, 2015
    Assignee: Massachusetts Institute of Technology
    Inventors: Timothy F. Jamison, Yutaka Ikeuchi
  • Publication number: 20140155634
    Abstract: The present invention generally relates to methods for the synthesis of catalysts, including epoxidation catalysts, and related compounds and catalyst compositions. Embodiments described herein may provide efficient processes for providing catalysts (e.g., epoxidation catalysts) in large quantities and using simplified methods.
    Type: Application
    Filed: February 6, 2014
    Publication date: June 5, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Timothy F. Jamison, Yutaka Ikeuchi
  • Patent number: 8680303
    Abstract: The present invention generally relates to methods for the synthesis of catalysts, including epoxidation catalysts, and related compounds and catalyst compositions. Embodiments described herein may provide efficient processes for providing catalysts (e.g., epoxidation catalysts) in large quantities and using simplified methods.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: March 25, 2014
    Assignee: Massachusetts Institute of Technology
    Inventors: Timothy F. Jamison, Yutaka Ikeuchi
  • Publication number: 20120252854
    Abstract: A crystalline form of a hydrate of a dihydrochloride 5-(4-{[6-(4-amino-3,5-dimethylphenoxy)-1-methyl-1-H-benzimidazol-2-yl]methoxy}benzyl)-1,3-thiazolidine-2,4-dione represented by the following formula: wherein the crystalline form shows main peaks at interplanar spacings of 10.42, 5.85, 5.52, 3.84, 3.46 and 2.95 angstroms in X-ray powder diffraction obtained with Cu K? line radiation (wavelength ?=1.54 angstroms).
    Type: Application
    Filed: May 7, 2012
    Publication date: October 4, 2012
    Applicant: DAIICHI-SANKYO COMPANY, LIMITED
    Inventors: Hisaki Kajino, Yutaka Ikeuchi, Hiroshi Miyamoto, Eiji Numagami, Satoru Nihei
  • Publication number: 20120238759
    Abstract: A method for manufacturing a 6-substituted 1-methyl-1H-benzimidazole derivative represented by the formula (IV) wherein R3 represents a hydrogen atom or a C1-C4 alkyl group. A 4-substituted N2-methylbenzene-1,2-diamine derivative is prepared from a particular 5-substituted N-methyl-2-nitroaniline derivative, subsequently reacting the resulting compound with {4-[(2,4-dioxo-1,3-thiazolidin-5-yl)methyl]phenoxy}acetic acid or an acid chloride or a mixed acid anhydride thereof, and subsequently subjecting the resulting compound to intramolecular dehydration condensation. A compound of the formula (II) wherein R1 represents a hydrogen atom, a C1-C4 alkyl group, or a protective group for the nitrogen atom, and R2 represents a hydrogen atom or a protective group for the nitrogen atom is prepared and used as an intermediate.
    Type: Application
    Filed: November 25, 2010
    Publication date: September 20, 2012
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Yutaka Ikeuchi, Chiharu Satoh, Eiji Numagami, Satoru Nihei, Hisaki Kajino
  • Patent number: 8236834
    Abstract: It is an object of the present invention to provide the crystalline form of a thiazolidinedione compound, which is effective as a pharmaceutical ingredient for manufacturing a peroxisome proliferator-activated receptor (PPAR) activator and an anticancer pharmaceutical composition. The present invention relates to a crystalline form of a hydrate of 5-(4-{[6-(4-amino-3,5-dimethylphenoxy)-1-methyl-1-H-benzimidazol-2-yl]methoxy}benzyl)-1,3-thiazolidine-2,4-dione dihydrochloride represented by the following formula (I).
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: August 7, 2012
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Hisaki Kajino, Yutaka Ikeuchi, Eiji Numagami
  • Patent number: 8106079
    Abstract: A compound having the following formula (III) wherein R2 is hydrogen, alkyl, cycloalkyl, phenyl or a 5- or 6-membered heterocyclic, and X is oxygen, sulfur or nitrogen, and a method for preparing said compound.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: January 31, 2012
    Assignee: Sankyo Company, Limited
    Inventors: Hisaki Kajino, Hiroshi Miyamoto, Yutaka Ikeuchi
  • Publication number: 20110257415
    Abstract: The present invention generally relates to methods for the synthesis of catalysts, including epoxidation catalysts, and related compounds and catalyst compositions. Embodiments described herein may provide efficient processes for providing catalysts (e.g., epoxidation catalysts) in large quantities and using simplified methods.
    Type: Application
    Filed: February 28, 2011
    Publication date: October 20, 2011
    Applicant: Massachusetts Institute of Technology
    Inventors: Timothy F. Jamison, Yutaka Ikeuchi
  • Publication number: 20110213158
    Abstract: It is an object of the present invention to provide the crystalline form of a thiazolidinedione compound, which is effective as a pharmaceutical ingredient for manufacturing a peroxisome proliferator-activated receptor (PPAR) activator and an anticancer pharmaceutical composition. The present invention relates to a crystalline form of a hydrate of 5-(4-{[6-(4-amino-3,5-dimethylphenoxy)-1-methyl-1-H benzimidazol-2-yl]methoxy}benzyl)-1,3-thiazolidine-2,4-dione dihydrochloride represented by the following formula (I).
    Type: Application
    Filed: February 8, 2008
    Publication date: September 1, 2011
    Inventors: Hisaki Kajino, Yutaka Ikeuchi, Hiroshi Miyamoto, Eiji Numagami, Satoru Nihei
  • Publication number: 20110124692
    Abstract: Thiazolidinedione compound crystalline forms useful as a bulk material for the manufacture of a peroxisome proliferator-activated receptor (PPAR) ? activator or an anticancer pharmaceutical composition are provided, which are hydrate crystalline forms of 5-(4-{[6-(4-amino-3,5-dimethylphenoxy)-1-methyl-1-H-benzimi dazol-2-yl]methoxy}benzyl)-1,3-thiazolidine-2,4-dione represented by Formula (I) below and of its dihydrochloride.
    Type: Application
    Filed: July 30, 2009
    Publication date: May 26, 2011
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Hisaki Kajino, Yutaka Ikeuchi, Eiji Numagami, Satoru Nihei
  • Publication number: 20110046388
    Abstract: It is an object of the present invention to provide the crystalline form of a thiazolidinedione compound, which is effective as a pharmaceutical ingredient for manufacturing a peroxisome proliferator-activated receptor (PPAR) activator and an anticancer pharmaceutical composition. The present invention relates to a crystalline form of a hydrate of 5-(4-{[6-(4-amino-3,5-dimethylphenoxy)-1-methyl-1-H benzimidazol-2-yl]methoxy}benzyl)-1,3-thiazolidine-2,4-dione dihydrochloride represented by the following formula (I).
    Type: Application
    Filed: February 8, 2008
    Publication date: February 24, 2011
    Inventors: Hisaki Kajino, Yutaka Ikeuchi, Hiroshi Miyamoto, Eiji Numagami, Satoru Nihei
  • Patent number: 7816552
    Abstract: A method for preparing a compound having the following formula (I) by reducing a nitro group of the following formula (III) followed by carrying out an intramolecular dehydration condensation, wherein R2 is hydrogen, alkyl, cycloalkyl, phenyl or a 5- or 6-membered heterocyclic, and X is oxygen, sulfur or nitrogen.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: October 19, 2010
    Assignee: Sankyo Company, Limited
    Inventors: Hisaki Kajino, Hiroshi Miyamoto, Rei Okazaki, Yutaka Ikeuchi
  • Publication number: 20100234612
    Abstract: A compound having the following formula (III) wherein R2 is hydrogen, alkyl, cycloalkyl, phenyl or a 5- or 6-membered heterocyclic, and X is oxygen, sulfur or nitrogen, and a method for preparing said compound.
    Type: Application
    Filed: May 19, 2010
    Publication date: September 16, 2010
    Applicant: SANKYO COMPANY, LIMITED
    Inventors: Hisaki Kajino, Hiroshi Miyamoto, Yutaka Ikeuchi
  • Publication number: 20090023929
    Abstract: A method for preparing a compound having the following formula (I) by reducing a nitro group of the following formula (III) followed by carrying out an intramolecular dehydration condensation, wherein R2 is hydrogen, alkyl, cycloalkyl, phenyl or a 5- or 6-membered heterocyclic, and X is oxygen, sulfur or nitrogen.
    Type: Application
    Filed: September 26, 2005
    Publication date: January 22, 2009
    Inventors: Hisaki Kajino, Hiroshi Miyamoto, Rei Okazaki, Yutaka Ikeuchi